Swift jobs in crypto and blockchain companies

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

  Why Entersekt   Founded over 16 years ago, with more recent investments from Accel-KKR, Entersekt is a leader in mobile authentication, mobile app security, and payments enablement technology, offering highly scalable products with a track record of success across multiple continents.   Entersekt enables secure digital transactions for leading financial institutions globally. We exist to create a world where everyone can transact digitally without fear or compromise. Currently, we protect the digital transactions of over 210 million active users on our platform and hold 120 active patents that recognize innovation in digital security, payments, and user experience. Entersekt offers their customers secure authentication and digital payments experiences that remove unnecessary friction. Entersekt has invested in, and created, a diverse product portfolio that positions the company well to execute on its expansion in North America and European markets.The Ideal Candidate We are looking for a mobile software engineer with an interest in research and development (R&D), excited about working on early-stage prototypes and proof-of-concept projects. This role sits within the Signal Collection team in the Advice & Intelligence POD, where creativity, experimentation, and problem-solving are essential. This team plays a crucial role in developing prototypes and evaluating new technologies that can advance Entersekt’s offerings. As a mobile engineer in this team, you’ll be responsible for designing, building, and iterating on mobile-centric solutions that leverage iOS, Android, and full-stack technologies. Your contributions will help shape the future direction of the company’s products and technical capabilities. The Role As part of the Signal Collection team, you’ll be responsible for developing mobile prototypes and POCs that push the boundaries of what's possible in the digital security landscape. Working closely with R&D peers, you’ll contribute to full-stack projects involving iOS, Android, and TypeScript-based back-end systems. Specific tools and technologies aren’t prescribed, so you’ll need to be adaptable and comfortable experimenting with a wide range of development environments. You’ll help conceptualize and build technical prototypes, gather feedback from stakeholders, and iterate rapidly to refine your solutions. You’ll also be expected to take ownership of research into cutting-edge mobile technologies and evaluate their potential application in Entersekt’s core business. Responsibilities Prototype Development: Design and implement mobile-centric POCs and prototypes across Android, iOS, and web-based environments. Collaboration: Work closely with cross-functional R&D teams to brainstorm, design, and develop innovative solutions that align with Entersekt’s strategic goals. Technology Research: Research and evaluate emerging technologies and frameworks that could enhance mobile and full-stack development. Full-stack Contribution: Contribute to backend development using TypeScript-based systems, and web development as needed for holistic solution building. Architectural Input: Participate in architectural discussions, providing insights on mobile engineering, security, and best practices. Iterative Development: Take rapid feedback from stakeholders and team members to iteratively improve POCs and prototypes. Skills and Experience Successful candidates for this role will generally possess the following qualifications and skills: 3+ years of experience in mobile development with proficiency in Java, Kotlin, Swift, or Objective-C. Full-stack development experience, with knowledge of TypeScript (Node.js) back-end systems and web technologies like Angular, React, or Vue. Experience with building POCs and prototypes, with a willingness to work in a fast-paced R&D environment. Strong understanding of mobile development frameworks (iOS and Android). Solid understanding of object-oriented (OO) design patterns, SOLID principles, and software design fundamentals. Exposure to Agile practices like Scrum or Kanban. Familiarity with mobile security best practices and secure coding techniques. Experience with RESTful API design and integration. Experience with hybrid mobile development frameworks (e.g., Cordova, Ionic). Knowledge of mobile SDK API design and development. Experience with Docker, Kubernetes, and containerization within a mobile environment. Understanding of cryptography and public key infrastructure (PKI) is advantageous. Personality Attributes A strong interest in innovative development, and the ability to see projects from concept to completion. Creative problem-solving: ability to think outside the box and develop unconventional solutions. Eager to learn, with a passion for experimenting with new tools and frameworks. Self-driven and able to work independently, but also a great collaborator who thrives in team settings. A love for building: hands-on, excited about creating and refining technical solutions through iteration. Strong communication skills: able to articulate complex ideas clearly and concisely.   We place a lot of value on how we treat prospective employees and appreciate the time and effort that goes into job hunting. That is why we aim to keep the hiring process as quick and seamless as possible while ensuring the best possible fit for both you and the company. Working at Entersekt is truly a dream. You get exposed to cutting-edge technology, colleagues who are leaders in their fields, and an awesome working environment that includes flexible hours, remote work, and plenty of growth opportunities. Apply for this position by following the "apply now" tab and or viewing our other roles at Entersekt Careers page.    

Join us at Dapper as a Senior Mobile Engineer, iOS, where we focus on the intersection of blockchain and gaming. Our flagship projects, including Disney Pinnacle, NBA Top Shot, and NFL All Day, are blockchain-based digital collectibles platforms that leverage sophisticated technology. You will play a pivotal role in a dynamic, fast-paced environment, continually deploying to an enthusiastic and global audience, helping to pioneer new territories in blockchain and entertainment. We are looking for product-minded, user experience-driven Senior Mobile Engineer, iOS to join the fast-growing mighty mobile engineering team to ideate, design, implement, and maintain the best blockchain-powered mobile experiences for the first 1-billion mainstream users.What we’ll achieve together:Create and refine high-performance mobile applications running on blockchainPut our users first and ship features that surprise and delightContribute to the ideation, technical design, implementation, and testing of product featuresCraft every interaction with our product to be a polished, memorable, and engaging experienceEvaluate technical trade-offs for every decisionAdopt best practices in software development and refine our workflowsIdentify areas in our technical stack to improve, prioritize rollout with the team and contribute to the implementationBuild reusable components that are easy to use, maintain, and extendAbout you: BS/BA degree in a technical field such as Computer Science or equivalent years of experienceSolid understanding of Swift/Objective-C internalsProficiency with multithreading and performance optimization techniques for iOSStrong CS fundamentals (algorithms and data structures) and problem-solving skillsKnowledge of software design patterns and iOS best practicesExperience working on consumer-facing mobile productsShip high-quality code in a fast-paced environmentOwned projects end-to-end and delivered them by hitting key milestonesFamiliar with Apple Human Interface GuidelinesHave a strong product sense and eye for pixel-perfect implementationHave great communication skills; you work well with others to make the product better every day Bonus:Experience with Kotlin MultiplatformExperience with GraphQLExperience with blockchain and web3 technologiesExperience with OpenGL or MetalExperience with SDK developmentExperience with popular mobile third party libraries like Firebase, Customer.io, and InstabugDapper Labs is the world's first blockchain entertainment company. We are the creators of industry-leading experiences including CryptoKitties, NBA Top Shot, NFL All Day, Disney Pinnacle as well as Dapper Wallet – the simplest way to manage your assets and use the blockchain. We are also the original developers behind Flow, a new decentralized blockchain designed from the ground up for scalability and ease of use.Our mission at Dapper Labs is to make the world a more accessible and enjoyable place through consumer adoption of decentralized technologies.We have raised over $600M from leading and notable investors including Andreessen Horowitz, Coatue, Union Square Ventures, Venrock, Google Ventures (GV), Samsung, and the founders of Dreamworks, Reddit, Coinbase, Zynga, and AngelList, among others. Visit our website to learn even more about Dapper Labs, including information about benefits and perks.