REST jobs in crypto and blockchain companies

About Us:-Since its founding in 2017, Prometheum has leveraged its deep expertise in securities law, blockchain and trading to create a compliant ecosystem for digital asset securities that enables all investors to seamlessly invest in digital assets securities. Prometheum has relied on its strong diverse team to build the tools to service digital asset securities. To date, Prometheum has built multiple broker-dealers traversing novel areas and a large technology stack (intersecting trading, blockchain, compliance, etc.). We continue to grow and are looking for hardworking hungry individuals that can contribute to our already great fintech company culture as we traverse new and exciting areas that require a thirst for solving complicated problems. Role:- Fullstack Engineer - Full Time W2Salary Range:-$120,000 - $180,000 Overview:- We are looking for a Fullstack engineer who is motivated to bring their skills and experience working in fin-tech areas to our technology stack.  Responsibilities:-Working with technical leadership and other developers to implement custody, compliance, operations and post-trade settlement systems within our NodeJS-based back end architecture. You will be working with internal and external parties to integrate with blockchain systems and APIs. Qualifications:-7+ years’ experience in engineering including both frontend and backend.Extensive experience of NodeJS and common packages, architecturesStrong knowledge of TypeScript for both NodeJS and frontend development, improving type safety and code reliability.Experience designing, maintaining and expanding APIs via REST.Understanding of GraphQL and building efficient queries/mutations.Experience building tool chain applications, agents, services, server and client applications in NodeJS or similarThorough working knowledge working with a variety of database, SQL and other storage technologies in NodeJS.Excellent problem solving skillsExcellent verbal communication and interpersonal skillsExperience working in an Agile environment and familiarity with tools like Jira, Trello, and ConfluenceA proven track record developing interfaces with ReactJS, and are proficient with front-end languages (HTML, CSS and Javascript)Experience with designing and developing microservices-based architectures, especially for complex systems.Basic understanding of key design principles, and responsive and adaptive designWrite clean, tested code and value documenting your work for others.Proficient understanding of client-side JavaScript frameworks, including lodash or underscoreGood understanding of testing tools like Jest or MochaProficient understanding of cross-browser compatibility issues and ways to work around themProficient understanding of code versioning tools, specifically including Git Benefits:-Excellent benefits including:- Health, Vision & Dental InsuranceFully remote position with equipment provided. Prometheum is an equal opportunity employer. Experience RequirementsExperienced

As Acronis is dedicated not just to Cyber Protection but to the general protection of its potential and current employees, recruitment and onboarding process are being held online during the current global COVID-19 situation. Acronis leads the world in cyber protection - solving safety, accessibility, privacy, authenticity, and security (SAPAS) challenges with innovative backup, security, disaster recovery, and enterprise file sync and share solutions that run in hybrid cloud environments: on-premises, in the cloud, or at the edge. Enhanced by AI technologies and blockchain-based data authentication, Acronis protects all data, applications and systems in any environment, including physical, virtual, cloud, and mobile. With dual headquarters in Switzerland and Singapore, Acronis protects the data of more than 5 million consumers and 500,000 businesses in over 150 countries and 20 languages. Acronis is implementing projects to integrate the Acronis Cyber Cloud service with the most popular solutions in the sphere of billing, RMM and PSA solutions. We already implement integration with such products as ConnectWise, Appdirect, Plesk, cPanel. In this project, we plan to create a completely new SDK for creating PSA and RMM integrations with Acronis Cyber Cloud. Tasks RESPONSIBILITIES: Analysis of requirements for the product Development and writing of quality code on Python Maintenance of business logic by unit-tests Support QA team in technical matters Requirements SKILLS & EXPERIENCE: 3+ year of experience writing well-designed, high-quality production code Strong knowledge of Python Experience with Python Asyncio Experience with databases (MySQL or PostgreSQL) Strong knowledge of software implementation best practices Good interpersonal, written and verbal communication skills Fluent English WOULD BE A PLUS: Python 3.x C# PHP Go Principles of REST / RESTful About the companyAcronis creates cloud cybersecurity software used by Fortune 500 companies & the US Government among our 5.5 million customers.

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

The InfoSec team at Chainalysis is focused on maintaining the security and integrity of our solutions. We collaborate with various teams to integrate secure practices into our development processes, build and manage security tools and dashboards, and oversee the security operations and deployment across our products and infrastructure.The Product Security Engineer at Chainalysis is dedicated to maintaining and enhancing the security of our products.. This role involves collaborating with developers to embed security into every stage of the product lifecycle, building custom security tools, automating assessments, and ensuring a robust security posture within our CI/CD pipelines. The Product Security Engineer also leads proactive efforts in vulnerability management, penetration testing, and security reviews to safeguard our products and continuously enhance our security practicesIn this role, you’ll: Conduct penetration testing and security assessments to identify vulnerabilities and ensure robust security measures.Develop and maintain custom security tools and scripts to automate and enhance security processes.Collaborate with development teams to integrate secure coding practices and solutions into both front-end and back-end systems.Review and improve security within CI/CD pipelines, integrating tools like SonarCloud and Wiz for continuous security assurance.Perform security audits and code reviews, offering guidance through pull requests and collaborative sessions.Analyze and address security issues by providing expert advice and actionable solutions to maintain the integrity of applications.We’re looking for candidates who have: Hands-on experience in penetration testing and security assessments, with a strong ability to identify and mitigate vulnerabilities.Excellent communication skills, both verbal and written, for effective collaboration with cross-functional teams.Proficiency with security tools like Burp Suite, Sonarcloud, Jfrog, and Wiz, and the capability to create custom scripts using Python to enhance automation.Proficient coding skills with a focus on security, particularly in Java and/or JavaScript. Alternative languages include Python and Go.Extensive knowledge of cloud security practices, specifically on platforms such as AWS and GCP.Experience integrating security tools into CI/CD pipelines, and a demonstrated ability to automate security testing within development workflows.Nice to have experience:Familiarity with blockchain or cryptocurrency security challenges and solutions.Experience with Infrastructure as Code (IaC), particularly reviewing and securing Terraform code.Certifications such as CISSP, OSCP, or similar credentials, demonstrating a formalized knowledge of security principles and practices.Technologies we use and teach:Coding Languages: Java, Python, and JavascriptIaC: TerraformCloud: AWS, GCP, CloudflareCI/CD Pipeline: GitHub, GitHub Actions, JenkinsAPIs: REST APIsAbout ChainalysisBlockchain technology is powering a growing wave of innovation. Businesses and governments around the world are using blockchains to make banking more efficient, connect with their customers, and investigate criminal cases. As adoption of blockchain technology grows, more and more organizations seek access to all this ecosystem has to offer. That’s where Chainalysis comes in. We provide complete knowledge of what’s happening on blockchains through our data, services, and solutions. With Chainalysis, organizations can navigate blockchains safely and with confidence.You belong here. At Chainalysis, we believe that diversity of experience and thought makes us stronger. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. Some of the ways we’re ensuring we keep learning are an internal Diversity Committee, Days of Reflection throughout the year including International Women’s Day, Harvey Milk Day, World Humanitarian Day, and UN International Migrants Day, and a commitment to continue revisiting and reevaluating our diversity culture. We encourage applicants across any race, ethnicity, gender/gender expression, age, spirituality, ability, experience and more. If you need any accommodations to make our interview process more accessible to you due to a disability, don't hesitate to let us know. You can learn more here. We can’t wait to meet you. 

We are looking for a detail-oriented QA Tester with experience in mobile games to join our team and who will be responsible for testing our games, identifying bugs and ensuring a smooth player experience. You’ll collaborate closely with the team to uphold our quality standards and contribute to creating a polished final product.All the responsibilities we'll trust you with:You'll test the mobile game across various platforms (iOS, Android) to identify and report bugs, glitches, and gameplay issues.You’ll perform functional, regression, and performance testing to ensure game quality and stability.You’ll collaborate closely with developers, designers, and other QA team members to understand game features, mechanics, and design goals.You’ll write clear and detailed bug reports, including reproduction steps, expected results, and actual results.You’ll execute test plans, test cases, and checklists throughout the development cycle.You’ll participate in daily stand-ups, sprint planning, and team meetings to provide updates on testing progress and issues.You’ll ensure the game meets platform-specific guidelines and requirements (Apple, Google).You’ll conduct usability testing to ensure a smooth and enjoyable user experience.You’ll stay up-to-date with the latest trends in mobile gaming and QA methodologies.What you'll bring to the team:At least 2 years of experience in QA for mobile games.Experience working with mobile devices, emulators, and debugging tools.Strong understanding of mobile platforms (iOS, Android) and their testing environments.Proficiency in bug tracking tool JIRA.Excellent attention to detail, with the ability to spot subtle issues in gameplay and UI.Knowledge of game development pipelines and agile workflows.Excellent English proficiency to collaborate effectively with our international team.Strong communication skills to effectively report and discuss issues with the development team.Passion for gaming, with a solid understanding of game mechanics and user experience principles.Why you'll love working with us:We’re 100% remote, work wherever you want forever!We offer unlimited holidays and sick days. Take as much time off as you need, to spend time with your family and friends or just because you feel like playing games all day. We trust our team and want to offer a modern work life balance that allows you to thrive both at work and in your personal life.You’ll be able to make an impact, to work closely with the rest of the team and its leads to work on one of the most promising upcoming games in the mobile gaming industry and the Web3 space.You’ll have a comfortable work schedule and stable workload. With a variety of tasks that will allow your constant professional development.We want our team to grow personally and professionally and support learning opportunities, especially with a focus around new AI tools and methods. We have a culture that puts our people first. We believe in open communication, creativity and the value of unique contributions from everyone in the team.We offer a competitive salary in addition to equity option plans.