Security jobs in crypto and blockchain companies

Echo Base is a private holding company pursuing special situation control investments in the digital assets space. Our global crypto team possesses deep experience in both the scaling of new ventures and the restructuring of complex assets with asymmetric risk profiles. Through lateral acquisitions, Echo Base seeks to leverage operational and technical synergies across our portfolio companies.The DevOps Principal Engineer is responsible for overseeing the strategy, architecture, and operations of Echo Base’s DevOps environment. This role requires deep expertise in cloud infrastructure, security protocols, and monitoring tools, alongside exceptional leadership skills to guide a high-performing team. The ideal candidate ensures reliability, scalability, and compliance for Echo Base’s cryptocurrency services while driving team collaboration and technical innovation.What will you do: Develop and execute a comprehensive DevOps strategy to ensure scalability, uptime, and security for Echo Base’s cryptocurrency platforms and services. Oversee the design, deployment, and optimization of AWS cloud infrastructure, ensuring high performance, cost efficiency, and alignment with cloud-native architectural best practices. Drive the adoption and implementation of observability tools like Splunk, Prometheus, and Grafana, enabling proactive monitoring, alerting, and rapid issue resolution. Build and manage automated workflows and event-driven systems using Apache Airflow and AWS Lambda to streamline operations and enhance system reliability. Implement robust data visualization and reporting solutions with Superset, delivering actionable insights for transaction metrics and operational KPIs. Conduct regular security audits, enforce compliance with cryptocurrency regulations, and implement data protection best practices to safeguard user and system integrity. Act as the primary escalation point for critical incidents, leading swift resolution efforts and driving improvements through comprehensive post-mortem reviews. Report key DevOps metrics, operational performance updates, and technical strategies to senior leadership, aligning team efforts with company goals. Who you are: Proven leader with expertise in cloud platforms, DevOps best practices, and AWS services. Skilled at fostering collaboration, mentoring team members, and resolving critical issues. Passionate about innovation and optimization in high-security, high-availability environments. What we are looking for: 7+ years of experience in DevOps, Cloud Engineering, or related fields, with 3+ years in leadership roles, demonstrating the ability to coordinate cross-functional teams, prioritize tasks, and manage escalations. Advanced expertise in AWS services, including EC2, S3, Elasticache, ECS, DynamoDB, Route 53, WAF, SNS, CloudWatch, and ELB, for designing and managing scalable, secure, and high-performance cloud architectures. Strong knowledge of DevOps best practices, including GitOps, CI/CD methodologies, and infrastructure-as-code tools such as Terraform and CloudFormation. Proficiency in workflow orchestration tools like Apache Airflow and event-driven architectures using Kafka and AWS Lambda. Expertise in monitoring and visualization tools, including Splunk, Prometheus, Grafana, and Apache Superset, to ensure comprehensive system visibility and actionable insights. In-depth knowledge of security protocols and tools, such as KMS, Certificate Manager, CloudTrail, and WAF, for safeguarding infrastructure and ensuring compliance. Familiarity with cryptocurrency-specific systems, including wallet security, transaction processing, and compliance standards, with an emphasis on adhering to global regulations. About the companyEcho Base is a private holding company formed for the purpose of pursuing special situation control investments in the digital assets space. Our global crypto team possesses deep experience in both the scaling of new ventures and the restructuring of complex assets with asymmetric risk profiles. Through lateral acquisitions, Echo Base seeks to leverage operational and technical synergies across our portfolio companies.

Aptos is a people-first blockchain on a mission to help billions of people achieve universal and fair access to decentralized assets in a safe and scalable way. Founded by some of the original creators and maintainers that researched, designed, and built the Diem blockchain to serve this purpose, we have dedicated several years toward this mission. We believe the open-source Diem technology we have developed is an important foundation of a safe and scalable web3 world where everyone has more equitable opportunities to grow and access financial assets with lower fees and fewer intermediaries.   Aptos (Ohlone for "The People") encompasses our mission and ethos for why we build.About The Role We are seeking a diligent and dynamic Onchain Analyst to join our team. This role will be critical to monitoring the state of the Aptos onchain ecosystem, including DeFi protocols, ecosystem token launches, and onchain liquidity. The ideal candidate will have deep domain expertise in onchain analysis and DeFi mechanics, a basic understanding of tokenomics and token launches, and be independent-minded, operationally rigorous, and have a strong attention to detail. This role reports to the Aptos Foundation. What you'll be doing: Assist DeFi and Liquidity teams in creating and executing strategies to grow the Aptos onchain ecosystem Create analytics dashboards to gather insights into onchain behaviours of liquidity providers and other users Work directly with DeFi protocols to design and implement new products, markets, features, integrations, and growth campaigns Track performance of external partners with key roles in the onchain ecosystem What we’re looking for: 2+ years of experience in web3 Deep expertise in onchain analysis (reading block explorers, setting up Dune dashboards, etc.) Familiarity with DeFi mechanics; experience directly running complex strategies preferred (e.g. yield farming, arbitrage), personally or on behalf of a fund Familiarity with onchain token launch and liquidity dynamics Exceptional communication and interpersonal skills Ability to thrive in a fast-paced, dynamic environment and adapt to changing priorities Strong analytical and problem-solving skills Our Benefits 100% insurance premium coverage for medical, dental, and vision for you and your dependents (US Employees) Equipment of your choice Flexible vacation time, 11 holidays, and floating company days off  Competitive Salary Equity (RSUs) (US employees) Protocol Token Grants 401k matching (US Employees) Fun and inclusive in-person and digital events Aptos is committed to diversity in the workplace, and we’re proud to be an Equal Opportunity Employer. We do not hire on the basis of race, color, religion, creed, gender, national origin, citizenship, age, disability, veteran status, marital status, pregnancy, parental status, sex, gender expression or identity, sexual orientation, or any other basis protected by local, state or federal law. All employment is decided based on qualifications, merit, and business need. We are committed to providing a safe and secure hiring process for all applicants. Unfortunately, there are individuals who may attempt to impersonate Aptos or our employees for fraudulent purposes.To protect yourself, please be aware of the following: We will never ask you for payment of any kind during the application or onboarding process, including fees for background checks, training, or equipment. We will always communicate with you using our official company email domain. We will never request your personal financial information, such as your social security number or bank account details, during the initial application stages or via email or a video/voice call when onboarding. If you encounter any suspicious activity or requests that seem out of the ordinary, please do not hesitate to report it to us at [email protected].

Ready to be pushed beyond what you think you’re capable of? At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system. To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems. Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.Coinbase is looking for a Communications Manager for Consumer Product Communications. This role is ideal for someone passionate about crypto, deeply knowledgeable about communications strategy for consumer crypto products, and to take an unconventional approach to comms.  What you’ll be doing (ie. job duties):  Strategic Communication Leadership: Develop and execute compelling communications strategies to elevate Coinbase’s consumer product suite with MSM (and old school approaches) and with new media or going direct to customers,  Media Relations: Engage proactively with media, leveraging strong relationships and innovative approaches to amplify Coinbase’s messaging. Experience in killing stories is as important as driving headlines.  Social Media Expertise: Actively monitor and engage across social media platforms, bringing fresh ideas and direct engagement strategies to build trust and excitement among our audiences. Messaging and Narrative Development: Craft clear, impactful, and user-focused narratives that resonate across channels and drive alignment with Coinbase’s mission. Innovation in Media: Identify and implement new media ideas, ensuring Coinbase remains at the forefront of communications trends. What we look for in you (ie. job requirements): 8+ years of relevant communications experience at either a PR agency or an in-house communications team. Crypto-Native Expertise: A deep understanding of crypto, active participation in crypto communities, and a passion for Coinbase’s mission. Proven Communications Experience: Demonstrated excellence in consumer-focused communications, including strong messaging, narrative pull-through, and measurable outcomes. Consumer Product Knowledge: Experience with consumer products, with a focus on user-centric storytelling and solving customer problems. Creative Problem-Solving: Ability to innovate repeatable communications strategies that engage and excite users. Social Media Savvy: Proven track record of driving impactful engagement on social platforms with a direct, authentic, and engaging voice. What We Offer: Growth Opportunity: Join a high-performing team leading communications in the rapidly evolving crypto space. Mission-Driven Work: Align with Coinbase’s vision to increase economic freedom globally through the power of crypto. Innovative Culture: Collaborate with a team that values creativity, transparency, and impact. Nice to haves: An understanding of the regulatory, security, political and technical landscapes influencing the state of cryptocurrency today (and tomorrow). An interest in crypto and the economic freedom it can offer. Our mission is to create an open financial system for the world - and we want you to help!   Position ID:  P61489 #LI-remotePay Transparency Notice: Depending on your work location, the target annual salary for this position can range as detailed below. Full time offers from Coinbase also include target bonus + target equity + benefits (including medical, dental, vision and 401(k)).Pay Range: $170,765—$200,900 USDCommitment to Equal Opportunity Coinbase is committed to diversity in its workforce and is proud to be an Equal Opportunity Employer.  All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law.  For US applicants, you may view the Know Your Rights notice here.  Additionally, Coinbase participates in the E-Verify program in certain locations, as required by law.  Coinbase is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information.  For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here). Global Data Privacy Notice for Job Candidates and Applicants Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.      

TRM Labs is a blockchain intelligence company dedicated to fighting crime and creating a safer world for billions of people. By leveraging blockchain data, threat intelligence, and advanced analytics, our products empower governments, financial institutions, and crypto businesses to safeguard communities from illicit activity and global security threats. At TRM Labs, you’ll be part of a mission-driven, fast-paced environment where your work directly contributes to building a safer future. Our team combines expertise in law enforcement, data science, engineering, and financial intelligence to address complex challenges. Whether you're analyzing blockchain data, developing cutting-edge tools, or collaborating with global organizations, every day brings the opportunity to make a meaningful and lasting impact. Our ability to identify, hire, and retain exceptional talent is foundational to our mission. The Talent team at TRM is made up of seasoned professionals who have experience hiring world-class Engineering, Data Science, GTM, and People teams for the most notable startups in Silicon Valley. As a Recruiter, you will help drive TRM's ability to attract, engage, and hire top talent at TRM. Your success will be measured by the velocity and quality of TRM's talent acquisition. The impact you’ll have here: Build a high-velocity recruiting engine that efficiently identifies and recruits the best talent to TRM. Manage the full recruiting lifecycle across a variety of roles and teams. Create positive candidate experiences throughout every touchpoint. Develop creative and impactful sourcing strategies that will help us find and hire a diverse and exceptional team. Continuously improve our recruiting processes and increase the efficiency of our hiring. What we’re looking for: 3+ years of recruiting experience in high-growth US-headquartered tech startups Proven experience in hiring hard-to-fill roles, with expertise in using sourcing tools, conducting market research, and developing personalized outreach strategies. Ability to analyze and interpret recruiting metrics, conversion rates, and market data, using these insights to refine strategies and provide actionable feedback to hiring managers. Quickly familiarize oneself with new roles and requirements, showcasing flexibility, curiosity, and a high tolerance for change in a fast-paced, high-growth environment. Exceptional communication skills to work effectively with hiring managers, provide regular updates, and manage expectations. Skilled at building trust and acting as a strategic partner in the hiring process. Strong persistence and a results-oriented mindset to handle challenges, follow up on passive leads, and meet ambitious outreach targets. About the Team: Our talent team is fully remote, embracing async communication and collaboration through Slack channels, thorough documentation, and proactive updates to keep work moving forward smoothly across time zones. We’re committed to structured alignment, holding weekly hiring syncs for each role, weekly team sourcing syncs, and bi-weekly team meetings to ensure everyone is on the same page and to solve challenges collectively. Driven by a dedication to our craft, we continuously refine our best practices and data quality to deliver an exceptional experience for both internal stakeholders and candidates, supported by precise, reliable reporting. As a globally distributed team, we operate across various time zones, yet most of us overlap for collaboration and meetings between 7am-12pm PST, bringing flexibility and resilience to our work routines. All team members, regardless of location, maintain at least a 4-hour overlap with PST business hours to enable real-time collaboration and drive solutions effectively across the team. Learn about TRM Speed in this position: Within 72 hours of receiving a position, you schedule the intake meeting, open the position in the ATS, post the description, design the interview process, configure the interview plan.  Within week of opening a position, you have conducted 5-10 Recruiter Screens and have conducted the first sync with the Hiring Team for calibration. Two weeks after the initial interviews, you analyze the data to identify what is and isn’t driving pass rates and conversions. You share your insights and recommendations with the hiring team to refine and optimize the search, and you continue to monitor and adjust the approach until the position is filled.   Life at TRM Labs Leadership Principles Our Leadership Principles are foundational element of our strategy, guiding how we make decisions, how we treat each other, and how we behave day-to-day. Impact-Oriented Trailblazer: We put customers first, driving for speed, focus, and adaptability. Master Craftsperson: We prioritize speed, high standards, and distributed ownership. Inspiring Colleague: We value humility, candor, and a one-team mindset. Build a Career  Joining TRM means being part of a mission-driven team comprised of industry leaders. At TRM, you'll experience: Purpose and Mission: Have a real-world impact, from disrupting terrorist networks to returning stolen funds. Inspiring Colleagues: Collaborate with industry leaders and learn something new daily. Personal Growth: We're not just using technology; we're inventing it and taking category-defining products to market. Work Environment Remote First: Our HQ is online. Tools like Zoom and Slack ensure seamless collaboration, but we also value in-person interactions, organizing regular meetups and offsites for team bonding. Clear communication is key in our decentralized setup. With tools like Slack, Loom, and voice notes, we document meetings and decisions, promoting transparency and efficiency. Ownership & TRM Speed: Small teams drive big goals at TRM. Every team member has significant ownership and responsibility, fostering an environment of initiative and direct impact. While there's no strict clocking in or out, we expect team members to balance personal schedules and team needs. We move “surprisingly fast” while maintaining a high bar in service of our customers and mission. This can feel both intense and rewarding. Our unique approach to projects emphasizes quick wins, rapid iterations, and constant feedback. Diversity and Inclusion: Diversity at TRM encompasses backgrounds, experiences, and perspectives. Every day is an opportunity to learn from a colleague, whether they're a law enforcement expert or a tech pioneer. Annual Company Offsite: Once a year, TRMers come together from around the world to attend a 1-week mandatory company offsite. This is designed to foster in-person relationships, creativity, and strategic alignment. Employee attendance is required of all TRMers.   Join Us We're looking for team members who love building from the ground up and want to work hard in a fast-paced and ambitious environment. We are remote-first, with exceptionally talented team members located around the world. If you like solving tough problems quickly and seeing your work improve the lives of billions of people, we want you at TRM. We encourage you to reach out even if your experience doesn't precisely match the job description. Don't worry about picking exactly the right job; we can always explore other options after starting the conversation. Your passion and interests will set you apart, especially if your background or career is unconventional.   To all recruitment agencies: TRM Labs does not accept unsolicited agency resumes. Please do not forward resumes to TRM Labs employees. TRM Labs is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.

Sumsub is the one verification platform to secure the whole user journey. With Sumsub’s customizable KYC, KYB, transaction monitoring and fraud prevention solutions, you can orchestrate your verification process, welcome more customers worldwide, meet compliance requirements, reduce costs and protect your business.Sumsub has over 2,500 clients across the fintech, crypto, transportation, trading and gaming industries including Mercuryo, Bybit, Huobi, Unlimint, DiDi, Poppy and TransferGo.We are looking for a Customer Service Representative. Join Sumsub's team!Your role and tasks: Effectively interact with users, including both verbal and written communication (the main language of communication with the clients is German) Safeguard data, ensuring confidentiality and security Adherence to legal regulations and company standards Paying attention to detail and precision when carrying out tasks Continuous updating of knowledge and skills in line with industry and regulatory changes Only inbound calls, no outbound calls, chats or emails required. No customer support or complaint handling required. Simply guide the user through all necessary steps About you: Previous experience in customer service-based roles is considered an advantage, but no work experience is required. You will be surrounded by our attention and support in order to enter the new role and team as comfortably as possible Conversational German and English (knowledge of Italian, Spanish, French, Portuguese or Turkish would be a strong asset). Please, note that the main language of communication with the clients is German. Good communication skills Ability to navigate a large amount of information Able to have days off during the week instead of the weekend We offer: Full-time position that requires only ~35 working hours per week, plus paid breaks Convenient work schedule: morning, evening, or night shifts & a floating weekend system that can be conveniently adjusted to your study schedule or personal life Performance bonuses Working with a product that matters. Our technology helps protect millions of users of online services worldwide 20 days of paid vacation leave Let’s make the online world a safer place together!We are a global community of innovators, creators, and thinkers, and we believe that diversity fuels our innovation. Sumsub is proud to be an equal opportunity employer, committed to building a diverse and inclusive workforce. We welcome applications from people of all backgrounds, cultures, genders, experiences, abilities and perspectives. Join us in shaping the future inclusively.

This Role The Senior Frontend Engineer position is fully remote, available to candidates within WEST +/- 3 time zones. Who We Are Looking For We seek an Engineer with a deep understanding of software design and the adeptness to apply these principles in various scenarios. Ideal candidates are curious, creative, capable of adapting quickly, and eager to embrace new and familiar technologies alike. You should be ready to challenge norms, take pride in your work, and have significant experience in React-based environments. Engineering at Staking Rewards Our engineering environment is dynamic and fast-paced, constantly evolving to meet the changing needs of the crypto market and our business. Engineers at Staking Rewards are expected to be proactive, communicative, and open to innovative solutions. We strive for excellence, delivering strong solutions in a collaborative team setting. Your Responsibilities As a Senior Frontend Engineer, you will tackle diverse challenges and make substantial contributions to our platform. Key responsibilities will include: Developing high-performing, secure web experiences. Integrating robust security measures into code and technical practices. Building for others: other developers on the team, for stakeholders and our users Own the full vertical: shape, build, ship, monitor How to Join Us To apply, please submit your social profiles (Twitter, LinkedIn, personal website) and your GitHub link. We look forward to understanding how you can contribute to our team's success.

Hex Trust, established in 2018, offers fully regulated institutional digital asset Custody, Staking, and Markets services to builders, investors, and service providers. Drawing on the expertise of veteran banking technologists and award-winning financial services leaders, Hex Trust continues to innovate with its proprietary bank-grade platform, providing secure, and integrated solutions. Hex Trust has grown its global presence, with offices in Hong Kong, Singapore, Dubai, Italy, and Vietnam.   Position Summary The Compliance Analyst will be responsible for reviewing KYC profiles, conducting documentation assessments, and managing AML name screening. Key responsibilities include performing due diligence checks, supporting transaction monitoring, and preparing regulatory reports. You will collaborate with the Compliance team and manage various ad hoc projects as assigned.   Duties & Responsibilities Responsible for reviewing and approving KYC client profiles, performing documentation reviews, and conducting sanctions and AML name screening dispositions. Carrying out due diligence checks and information searches per internal standards. Supporting transaction monitoring for on-chain and fiat transactions. Assisting with the preparation of reports for regulators and law enforcement. Working as part of a collaborative team to assist across all areas of the Compliance function. Undertaking ad hoc projects as assigned by the VP of Compliance or Head of Legal & Compliance. Requirements At least 3 years of experience in KYC/AML compliance. Required to take afternoon or night shifts and cover compliance duties from 4 PM to 1 AM (PHT). Broad understanding of CDD requirements, along with knowledge of AML regulations and industry or regulatory standards. Outstanding oral and written communication skills. Fluent in spoken and written English. Certification as an Anti-Money Laundering Specialist (CAMS) or similar certification is preferred.   Candidates who do not tick all the boxes are still encouraged to apply, those with less experience will still be considered for the position but with an adjustment to the level of seniority. Benefits As one of the leading Web3 innovators, Hex Trust offers a front-row seat in the ever-changing blockchain & crypto industry. We genuinely believe that people are our greatest asset, and invest heavily so they’re best prepared to support our mission to unlock ownership in decentralized markets! You will be joining a company that is always committed to creating a supportive & inclusive environment that promotes personal and professional growth that furthers your success and drives innovation, collaboration, and passion in the blockchain space.   At Hex Trust, we are proud of our H.E.X. culture: Heart Empowerment Xcellence   Join us at Hex Trust and not only can you look forward to working with blockchain professionals to build the decentralized future, but also: Competitive Salaries & Bonuses Generous Amounts of Paid Time Off (incl. leave for Birthdays, Work Anniversary, and Mental Health etc.) Flexible Work Arrangements Access to Corporate Discounts and exclusive Employer Perks Medical & Retirement Plans Professional Learning and Development Opportunities Elevate your work using cutting-edge technology Fun & friendly office spaces in Hong Kong, Singapore, Dubai and Vietnam Regular company & social events   Hex Trust is an equal-opportunity employer devoted to diversity and inclusion in the workplace. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. About the company   Hex Trust is a fully-licensed, institutional-grade digital asset custodian providing custody, DeFi, brokerage, and financing solutions for financial institutions, digital asset organizations, corporations, and private clients. Our proprietary bank-grade platform Hex Safe™ is designed with a compliance-first approach, the highest level of security available in the market, and scalability for high transaction volumes.Our mission is to seamlessly integrate traditional finance with the digital asset ecosystem in a highly secure, scalable and compliant manner. Pioneering cutting-edge technology and security frameworks, we have a vision to become the world’s most trusted infrastructure provider in the digital asset economy.

About the Company:  Shardeum is building a layer 1, EVM-based, linearly scalable, smart contract platform that provides low gas fees forever while maintaining true decentralization and solid security through dynamic state sharding. Shardeum aims to be a chain capable of onboarding over a billion people to the crypto revolution, while also democratizing accessibility to decentralization. Shardeum’s mission is supported by prominent Venture Capitalists in the blockchain space, and we are on track to become one of the most widely used and well known smart contract platforms in blockchain history.We encourage you to browse our website, Whitepaper, Discord and YouTube channel to learn more about the project. You can even try downloading our validator software and joining our Testnet. We encourage people of all backgrounds to apply. Your talent and potential is what matters most to us. Shardeum is committed to creating an inclusive culture.About The Role: The Engineering team at Shardeum is responsible for delivering the Shardeum Mainnet, and developing the smart contract platform, the consensus layer and the protocol layer. We focus on building scalable, performant, secure and reliable software that can be downloaded by thousands of node operators to actualize the Shardeum network. In this position, you’ll have the opportunity to share and cultivate your ideas while innovating to enhance testing methodologies and various components of the Shardeum platform.  We tackle unique challenges that are yet to be addressed, making this role both exciting and rewarding. If you're eager to contribute to a project that holds significance in the global Web3 landscape, check out the details below: What You'll Be Doing: Own and manage the entire QA function and team, consisting of QA Testers and automation engineers. Develop and implement comprehensive QA strategies to ensure the quality of Shardeum’s decentralized platform. Design, develop, and maintain automated testing frameworks and suites. Conduct manual testing as needed, including: white box, integration, system and regression testing. Collaborate closely with development teams to integrate testing into the development workflow. Identify, document, and track bugs and issues until they are resolved. Perform regular reviews and audits of QA processes and standards. Participate in daily and weekly stand-ups, sprint planning and retrospectives with cross-functional teams, including development, product management, and operations, to maintain quality throughout the software development lifecycle. Stay updated on the latest industry trends and technologies to keep Shardeum’s QA practices at the forefront. What We're Looking For: 10+ years of experience in Quality Assurance, including 3+ years in a managerial role. Extensive knowledge of QA methodologies, tools, and processes. Proficiency in creating and managing automated test scripts using automation tools. Extensive experience with manual testing, and meticulous in ensuring comprehensive feature coverage. You excel in problem-solving and debugging. Experienced in Agile/Scrum methodologies. A solid understanding of the software development lifecycle and the role of QA within it. You demonstrate strong leadership, ownership and management skills. Strong communication skills - both verbal and written. We'd Love If You Have: Experience in the blockchain or decentralized applications space. You possess experience in programming languages like Node.js, Typescript or Rust. You’ve made contributions to open-source projects in the areas of QA and/or testing. You have a strong interest in Blockchain, Web3, AI, or Distributed Networks. Experience with consensus protocols and other blockchains Experience running a node in a blockchain network Familiarity with the Shardeum open source repos  Read the Bitcoin and Ethereum whitepapers We are building the infrastructure for Web 3.0. It's going to be a rollercoaster ride but promises to be fun.

About the Company Gemini is a global crypto and Web3 platform founded by Tyler Winklevoss and Cameron Winklevoss in 2014. Gemini offers a wide range of crypto products and services for individuals and institutions in over 70 countries. Crypto is about giving you greater choice, independence, and opportunity. We are here to help you on your journey. We build crypto products that are simple, elegant, and secure. Whether you are an individual or an institution, we help you buy, sell, and store your bitcoin and cryptocurrency.  At Gemini, our mission is to unlock the next era of financial, creative, and personal freedom. The Department:  Platform Our Platform Organization’s purpose is to enable Gemini to scale effectively and empower our engineering teams to focus on building innovative financial products and experiences for individuals around the world. Within Platform, the Enterprise Infrastructure team oversees the internal corporate technology that supports Gemini’s offices and employees, including hardware and software management, cloud resources, developer tools, service and user account lifecycles, and operations of our global physical locations. Our enterprise technology strategy fuels business growth through an engineering-first approach by delivering a modern, secure, and scalable foundation for seamless collaboration, efficient operations, and future-ready innovation. This vision redefines IT as a strategic driver of innovation and acceleration, rather than a support function. By emphasizing operational excellence, continuous improvement, user enablement, and strategic automation, we transform IT into a catalyst for growth and innovation. The Role: Senior Enterprise Infrastructure Engineer As an Enterprise Infrastructure Engineer focused on engineering and automation, you will build and maintain the internal technology ecosystem that underpins Gemini’s global operations. While your responsibilities may include acting as an escalation point for complex issues originating from our support team, your primary focus will be on applying DevOps methodologies, automating repetitive tasks, and engineering innovative solutions to manage and scale our infrastructure. You will design and refine our internal tooling, develop integrations span across multiple web services, and leverage Infrastructure as Code (IaC) principles to enhance system reliability and efficiency. Your efforts will target the reduction of manual toil, ensuring that systems are stable, secure, and positioned for rapid growth. This role offers an opportunity to shape the future of our IT infrastructure by building, configuring, and evolving the platforms that keep Gemini operating smoothly and securely. The ideal candidate will thrive in the fast-paced setting of a growing organization and enjoy the variety of work that this position offers. Responsibilities: Build, maintain, and improve our internal infrastructure using DevOps methodologies, including Infrastructure as Code (e.g., Terraform) and Configuration Management tools (e.g., Ansible, SaltStack). Integrate and automate workflows across various SaaS platforms, utilizing REST APIs, OAuth flows, and scripting to eliminate repetitive manual tasks and improve system reliability. Design and implement CI/CD pipelines (e.g., GitHub Actions, Concourse CI) to ensure smooth, automated deployments and consistent application of infrastructure changes. Develop internal tools, custom scripts, and services (e.g., in Go, Python, Swift) to manage, monitor, and scale our global device fleet, including macOS and ChromeOS devices managed via MDM solutions (Jamf, Google MDM) and, where needed, Windows endpoints. Collaborate closely with the support-focused team members, serving as the escalation point for complex technical challenges, and implement automated solutions to reduce future support burdens. Engineer and maintain integrations with AWS services (e.g., EC2, S3, Cloudfront, CloudWatch) to ensure efficient, scalable, and secure cloud operations. Evaluate and adopt emerging technologies (e.g., Containerization: EKS) to further enhance system performance, resiliency, and security. Support identity management and user lifecycle tasks through Okta, Google Workspace, Active Directory, and other related IAM systems, working to automate user management at scale. Develop and maintain technical documentation, FAQs, and runbooks to ensure knowledge sharing and empower team members with clarity and confidence. Partner with cross-functional teams to identify operational pain points, drive continuous improvement initiatives, and advance Gemini’s overall technology ecosystem. Minimum Qualifications: Bachelor’s degree in a technical field or 4-8 years of experience in a DevOps-focused IT/infrastructure role. Strong experience managing macOS endpoints, including MDM platforms such as Jamf and Google MDM, and familiarity with Linux principles (systemd, shell scripting). Demonstrated experience with Infrastructure as Code tools (e.g., Terraform), and configuration management (e.g., Ansible, Puppet, Salt). Strong understanding of AWS services, networking fundamentals (TCP/IP, DNS, DHCP, Wi-Fi, VPN), and cloud-native operations. Solid CI/CD pipeline experience (GitHub Actions, Concourse, Harness) and version control with Git/GitHub. Proficiency in scripting and programming languages (e.g., Python, Go, Swift) and working with REST APIs. Understanding of identity and access management technologies (Okta, Google Workspace) and authentication protocols (OAuth). Detail-oriented and capable of juggling multiple priorities in a dynamic environment. Excellent communication and documentation skills, with the ability to explain technical concepts to both engineering and non-engineering audiences. Proactive self-starter who can identify, plan, and implement solutions with minimal guidance. Preferred Qualifications: Experience in a startup, fintech or finance support. Understanding of SSO implementations (i.e. Okta). Experience with Linux. Strong experience with macOS. Experience managing 2500+ devices through MDM. Experience managing 1000+ user accounts. Experience with Go, Python, and Swift. Experience with Configuration Management (Ansible, Chef, Puppet or Salt). Experience creating and maintaining CI/CD pipelines. Understanding of Google Workspace management and products. Working knowledge of the Apple MDM protocol. Familiarity with AutoPKG, Munki, and other automated patch management or package distribution tools for macOS. Strong communication, teaching, and mentorship skills to elevate the capabilities of the entire team. It Pays to Work Here   The compensation & benefits package for this role includes: Competitive starting salary A discretionary annual bonus Long-term incentive in the form of a new hire equity grant Comprehensive health plans 401K with company matching Paid Parental Leave Flexible time off Salary Range: The base salary range for this role is between $136,000 - $170,000 in the State of New York, the State of California and the State of Washington. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate’s compensation, we consider a number of factors including skillset, experience, job scope, and current market data. At Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know. #LI-JS3

What are we all about? We are a team of builders and researchers on a mission to empower enterprises and developers worldwide to access and build on decentralized systems. Our expertise covers several domains: Ethereum and Starknet protocol engineering, layer-2, AI, cryptography research, protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering. Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many more. Today, we are a 350+ strong team working remotely across 66+ countries. View all our open positions here: https://www.nethermind.io/open-roles We're seeking an experienced Smart Contract Security Auditor to join our team in safeguarding Web3 protocols and applications. As a key member of our security team, you'll conduct comprehensive audits of smart contracts while contributing to our blockchain infrastructure development. Responsibilities: Work directly with protocols in the Solana, Ethereum, StarkNet, and Polkadot ecosystems to review their code and help secure their protocols. Perform thorough security audits of smart contracts written in Solidity Develop and maintain security tooling using Golang to enhance our audit capabilities Collaborate with teammates to maintain and continually improve our existing blockchain security tools using modern software engineering practices. Develop new blockchain security tools. Engage in meetings with clients to discuss security and best practice improvements. Skills: Understanding of blockchain technology and the Ethereum network. Solid understanding of the Ethereum Virtual Machine. Fluency in Solidity smart contract security and Golang audit. Detailed understanding of common smart contract vulnerabilities. Fluency with common tools and frameworks used for the development and security analysis of smart contracts. Strong debugging skills and/or experience in reverse engineering. Portfolio of audit report. Nice to Haves: Good written and verbal communication skills. Understanding of most common DeFi applications. Publicly visible audit reports in your portfolio. Disclaimer: I hereby consent to my personal information being stored and processed by Demerzel Solutions Limited (t/a Nethermind) (the “Company”) for recruitment purposes in relation to both the selected job role and any other role the Company considers me a qualified candidate for. All data storing and processing by the Company takes place in accordance with the UK GDPR. Kindly refer to our privacy policy for more details. Your consent to share personal information is entirely voluntary, and you may withdraw your consent at any time. Should you have any questions about this process, or wish to withdraw your consent please contact: [email protected] Keep up to date on what we are working on by following us on our social channels       Click here to view our Privacy Policy.