Senior React Native Engineer Jobs

Anyfin is building the next generation of consumer finance. We’re profitable, scaling quickly and now operating with a banking license which opens up a lot of technical complexity. We’re looking for a senior react native engineer who enjoys moving fast, taking real ownership and building things that actually have an impact. We work from the office because we think it makes us better, especially at this stage. If that sounds like your kind of environment, keep reading. Because honestly, it’s not a role for everyone. Small team, high responsibility We hire carefully. We’re not a company that grows by adding headcount everywhere, we grow by keeping the bar high and building a team where every person matters. This isn’t a place where you disappear into a big org. If you join, you’ll have real influence on what we build and how we build it. What you’ll do You’ll take a leading role in building and evolving our mobile applications across iOS and Android. Building and shipping new mobile features in React Native. Designing reusable components and scalable mobile architecture. Collaborating closely with design to deliver polished, accessible user interfaces. Integrating with our GraphQL APIs to power seamless user experiences. Making architectural decisions that improve performance, maintainability and developer experience. Running experiments and iterating on features to improve user engagement and retention. Writing and maintaining automated tests to ensure reliability across releases. Mentoring other engineers and helping raise the bar for mobile development. Tech stack: Mobile: React Native, TypeScript, Apollo Client (GraphQL) Backend you'll work closely with: Node.js/Express, GraphQL Federation, PostgreSQL, Redis Infrastructure: GCP, Kubernetes, GitHub Actions Product tooling: Storybook, GrowthBook How we think about building We’re pragmatic. We like speed, but we also care about building things that last. AI is already part of how we build and not an aspiration. We us

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . We're hiring a Senior Staff Software Engineer, Native Mobile to join the App Infra team within the Consumer & Business group as a technical architect for Coinbase's native mobile future. This is the most significant client platform shift in the company's history, replacing the React Native app with native Swift and Kotlin builds for millions of customers. Coinbase mobile engineers will be expected to support both iOS and Android on their teams using AI-driven agentic translation at unprecedented scale. You'll own outcomes spanning the App Infra team and our ~30 product teams, set our architectural patterns, and relentlessly drive Coinbase towards a novel, world-class mobile development experience. What you'll do: Define the technical strategy to make the native app development future at Coinbase a reality. Lead the AI-assisted migration approach, designing reusable AI-automation paradigms such as agent swarms, automated dual-repo synchronization, and continuous improvement of translation efficiency using automated feedback loops. Architect a paved-road native framework in Swift and Kotlin that sets the architectural bar across teams, unlocking the ability for a single mobile contributor to be productive in both iOS and Android codebases simultaneously. Drive organizational readiness as a trusted cross-functional partner with product, design, and engineering leade

Senior React Native Mobile and Full Stack Developer Description - We are seeking a highly skilled Senior React Native Mobile and Full Stack Developer to design, develop, and maintain secure, scalable, enterprise-grade mobile applications for iOS and Android , as well as the cloud services and APIs that support them. The ideal candidate brings extensive experience building production-ready cross-platform mobile applications with React Native , combined with strong backend and cloud development expertise using object-oriented programming languages such as C#, Java, Python, or Go to deliver secure, end-to-end solutions. This role requires deep expertise in mobile authentication , secure storage , offline-first architecture , data synchronization , push notifications , GPS/location services , and mobile security best practices , as well as experience designing and developing RESTful APIs , integrating with cloud platforms such as Microsoft Azure, or AWS , and building scalable backend services. You will work closely with Product Managers, UX Designers, Security Architects, Backend Engineers, and QA teams to deliver high-quality, mission-critical mobile solutions used by enterprise customers worldwide. The ideal candidate is a hands-on specialist who is passionate about building high-quality software, driving architectural decisions, mentoring engineers, and delivering reliable, secure, and performant mobile experiences across the full technology stack. Key Responsibilities Design, develop, and maintain secure, scalable, and high-performance cross-platform mobile applications using React Native for both iOS and Android . Design, develop, and maintain backend APIs , cloud services, and supporting infrastructure that

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team We're a mobile engineering team based in Barcelona, focused on building world-class mobile applications that deliver excellent user experiences for Stripe merchants. React Native is at the core of how we build—it lets us move fast, share code across platforms, and ship high-quality experiences to millions of businesses worldwide without compromise. As a Senior Mobile Engineer on our team, you'll help shape our React Native architecture, set the bar for engineering quality, and play a meaningful role in defining what great mobile development looks like at Stripe. This is a high-impact role where your decisions will be felt across the product—and across the millions of merchants who depend on our apps every day. What you'll do As a Senior Mobile Engineer, you'll own significant parts of our React Native codebase, lead architectural decisions, and help grow the team around you. You'll work closely with product, design, and cross-functional partners to deliver polished, performant mobile experiences. Responsibilities Spearhead the design and development of critical product features, partnering with cross-functional teams to transform complex requirements into seamless, high-performance mobile experiences Champion the integration of AI and cutting-edge development tools to drive efficiency, elevate code standards, and cultivate a culture of AI-assisted engineering Own architectural decisions for the mobile layer—including navigation, state manage

Beacon Biosignals is transforming precision medicine for the brain, from clinical development to clinical care. For Life Sciences partners, we offer the leading at-home EEG platform for clinical development of novel therapeutics for neurological, psychiatric, and sleep disorders. Our Diagnostics business is building the most comprehensive at-home platform for precision diagnostics, combining EEG and cardiopulmonary signals to deliver reimbursable assessments for sleep and central nervous system disorders. Together, we're changing the way patients are diagnosed and treated for any disorder that affects brain physiology. As a Senior Mobile App Engineer, you'll help power Beacon's mission by building the cross-platform React Native apps that patients and clinicians use with our EEG headbands and other wearables. Your work will shape how people capture high-fidelity data and how easily they move through clinical trials and at-home diagnostics. This isn't just another app. You'll build tools that help unlock insights into neurological, psychiatric, and sleep disorders, with the potential to improve lives at scale. Beacon's robust asynchronous work practices ensure a first-class remote work experience, and we also have in-person office hubs in Boston and New York. For this position we will consider candidates based anywhere in the US Eastern time zone. What success looks like As part of our small, mission-driven Mobile Apps Team, you will: Lead development of our React Native mobile applications across iOS and Android. Design and implement UX workflows for clinical trial participants and at-home diagnostic patients. Own the user experience, performance, reliability, and observability of the apps and features you build, using feedback from real users across diverse use cases and environments. Work with engineers on our native iOS and Android BLE device SDKs to integrate device capabilities cleanly into the app. Partner with our Devices team, other Platform teams, and produ

Why Sony Interactive Entertainment? Sony Interactive Entertainment isn’t just the Best Place to Play — it’s also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we’re part of a proud legacy of innovation and excellence. SIE is a dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and recognizable intellectual properties (IP) in the world. Our role at SIE is to create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Senior Software Engineer / Software Developer (React Native) Build what’s next for players. We’re a startup inside Sony PlayStation. Fast-moving, experimental, and highly ambitious. Backed by the scale, resources, and trust of Sony Interactive Entertainment. We’re building new mobile and web experiences that help gamers connect, discover, and play together in better ways. This is a rare opportunity to design at startup speed and drive huge impact inside the largest gaming company in the world. We are seeking a Senior Software Engineer / Software Developer specializing in React Native and high-performance frontend development for mobile platforms. In this role, you will define the architecture, frameworks, and technical best practices. You will collaborate closely with engineers, product, and design teams to deliver best-in-class user interfaces that are performant, accessible, and delightful at scale. As a Senior Engineer, you will provide technical leadership across teams, mentor engineers, and push the boundaries of what’s possible in cross-platform frontend development. Responsibilities Define and evolve the frontend architecture for client applications on mobile using React Native and modern JavaScript/TypeScript. Drive performance o

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . We're hiring a Senior Software Engineer, Native Mobile to join the App Infra team within the Consumer & Business group. This team is executing a greenfield rewrite of Coinbase's retail mobile app from React Native to native Swift and Kotlin, using AI-assisted code generation to deliver a dramatically faster, higher-quality experience for millions of customers. You'll bring deep iOS or Android expertise to build core app surfaces, contribute to the design of Coinbase’s native mobile agentic workflow, and contribute to the foundation of Coinbase’s future mobile platform as product teams onboard to the native codebase. What you'll do: Accelerate every other Frontend engineer at Coinbase by defining architectural patterns, improving build speeds, and defining optimal development workflows. Own the development of core app surfaces in Swift and Kotlin, translating existing React Native flows into performant native implementations that meet strict performance budgets, and setting the project-level quality bar through code and design reviews. Build within the AI-assisted code generation loop, orchestrating AI as a force multiplier by leveraging LLM-driven translation while applying native mobile expertise to validate architecture, catch edge cases, and ensure production-quality outputs. Partner with product teams during onboarding to review native PRs, challenge suboptim

HOW WE WORK — AI-NATIVE ENGINEERING At B-Stock, AI is not a side experiment — it is how we build. Our engineers work in an AI-first workflow: using agentic coding tools to design, write, review, test, and ship production software, orchestrating AI to multiply their output while keeping human judgment firmly in the loop. We are looking for engineers who already work this way, or are hungry to. In this role you will be expected to: Use AI-assisted and agentic development tools (e.g., Claude Code, Cursor, GitHub Copilot) as a daily, core part of how you deliver — not an occasional aid. Orchestrate one or more AI agents across parallel work-streams, and know when to trust, verify, or override what they produce. Bring strong engineering judgment to reviewing and validating AI-generated code — you own the output, the AI does not. Decompose ambiguous problems into clear specs and prompts that an AI can reliably execute against. Stay fluent in a fast-moving toolchain and help raise the bar for how the whole team works with AI. Bonus: experience building AI-powered product features — LLM integration, retrieval, evaluations, or agentic systems in production. JOB SUMMARY B-Stock is looking for a Senior Software Engineer to help design, build, scale, and maintain the next generation of our marketplace platform. You’ll work with expert technical leads and engineers to build the experiences at the core of our business, partnering closely with Product, Design, and other teams to execute key initiatives — and doing it in an AI-native way. WHAT YOU'LL DO Work closely with product owners to design, implement, and deploy systems that scale our e-commerce, content, and fulfillment operations. Deliver elegant, effective software quickly, using AI to accelerate without sacrificing quality or ownership. Provide thought leadership on process, tooling, systems, and software architecture — including how we adopt and get leverage from AI. Improve and maintain existing systems, prioritizing ma

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . We're hiring a Senior Software Engineer, Mobile QA to join the App Infra team within the Consumer & Business group. The team is leading the greenfield native rewrite of Coinbase's retail mobile app in Swift and Kotlin, replacing the existing React Native codebase to deliver a significantly faster experience for millions of customers. You'll own the test infrastructure and processes that ensure every native release meets an uncompromising quality bar. You’ll build automated regression frameworks directly into the AI-assisted code generation loop so defects are caught at commit time, not after. What you'll do: Own the design and implementation of automated regression test suites for native iOS and Android builds, setting the project-level quality bar through code reviews, test standards, and trade-off analysis that teammates and partners trust. Build test infrastructure integrated into the AI code generation cycle, enforcing automated test and performance verification at commit time and defaulting to automation where manual steps currently slow the team. Partner with mobile engineers to close coverage gaps, eliminate flaky tests, and fix the slow debugging workflows the team has learned to tolerate. Architect the QA strategy for the greenfield rollout, solving high-complexity problems around catching regressions while supporting urgent last-minute changes from prod

Beacon Biosignals is transforming precision medicine for the brain, from clinical development to clinical care. For Life Sciences partners, we offer the leading at-home EEG platform for clinical development of novel therapeutics for neurological, psychiatric, and sleep disorders. Our Diagnostics business is building the most comprehensive at-home platform for precision diagnostics, combining EEG and cardiopulmonary signals to deliver reimbursable assessments for sleep and central nervous system disorders. Together, we're changing the way patients are diagnosed and treated for any disorder that affects brain physiology. As a Senior Mobile Engineer focused on device connectivity, you'll help power Beacon's mission by building the native iOS and Android BLE layer that connects our EEG headbands and other wearables to the apps patients and clinicians rely on. Your work will determine how reliably we capture high-fidelity data in homes, clinics, and trial sites. This isn't just another app. You'll build tools that help unlock insights into neurological, psychiatric, and sleep disorders, with the potential to improve lives at scale. Beacon's robust asynchronous work practices ensure a first-class remote work experience, and we also have in-person office hubs in Boston and New York. For this position we will consider candidates based anywhere in the US Eastern time zone. What success looks like As part of our small, mission-driven Mobile Apps Team, you will: Lead development of our native iOS and Android BLE device SDKs. Own connection reliability, data throughput, and battery performance for device communication across a wide range of phones, OS versions, and real-world environments. Partner closely with our Devices team on firmware interfaces, GATT profiles, and device behavior. Expose device capabilities to our React Native applications through clean, well-tested native modules. Own the observability of device connectivity, using telemetry and field feedback from real u

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . Frontend Software Engineer - Coinbase Card Team As a Frontend Software Engineer on the Coinbase Card team within the Consumer Product Group , you'll build and ship the user-facing experiences behind Coinbase's card products, including the Coinbase One Card (credit) and the Coinbase Card (debit). This team is consolidating both products onto a unified card platform, and you'll join a small team with high ownership, greenfield feature work, and direct impact on how millions of customers discover, activate, and use their cards. What you’ll do: Own end-to-end frontend development for core card experiences, including transactions, rewards, onboarding, and account management across web and mobile Build new user-facing features - such as authorized card users, reward offers, real-time transaction status trackers Partner with product, design, and backend engineering to scope, prioritize, and ship projects that reduce CX contact rates and improve the customer experience Identify and resolve frontend performance bottlenecks across card UX journeys, driving measurable improvements in CUJ latency and availability SLOs Required skills and experience: 5+ years of software engineering experience with deep expertise in React and React Native Proven track record of shipping consumer-facing products end-to-end in a high-scale environment, with a focus on performance, reliability

About the Role As a mobile platform engineer, you'll help shape the future of Chime's React Native app, building the infrastructure and tooling that make development faster, safer, and more scalable for hundreds of engineers working alongside AI. You'll thrive in this role if you enjoy building for developers, solving complex technical problems, and multiplying your impact on others while delivering a best-of-class experience for our 10M+ monthly active members. In this role, you can expect to Build and maintain internal frameworks, developer tooling, and infrastructure. Collaborate with product and engineering teams to improve app quality, performance, and observability. Identify bottlenecks and deploy operational efficiencies to automate mobile CI/CD and release orchestration, reducing manual effort and increasing reliability. Design and improve tooling to reduce friction in the developer loop and maximize engineering velocity. Mentor engineers and raise the bar on technical standards, code quality, and delivery practices through design reviews, guidance, and example. Partner with QA to lead Chime’s mobile release process across iOS and Android. Build and scale AI-enabling app development infrastructure to support increased product velocity. To thrive in this role, you have 5+ years of experience in cross-platform, mobile development, ideally with React Native. A collaborative mindset, excellent communication skills, and a drive to document and share what you build. Strong fluency in TypeScript and familiarity with React, React Native. Experience with iOS and Android build, configuration, and distribution systems. Shipped apps that are used by millions of users. A track record of profiling and improving app performance. Familiarity with observability and analytics tools like Bugsnag, Datadog, Sentry, or Hex. Deep understanding of server-client architecture, leveraging GraphQL and performance profiling (e.g., memory pressure, screen latency, optimizing

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . We're hiring a Senior Software Engineer, Frontend to join the Consumer Payments team within the Consumer Product Group . This team owns the infrastructure, experiences, and controls that power how millions of users send, receive, and move crypto on Coinbase. You'll own critical user journeys across web and mobile, building fast, reliable, and delightful payment flows while mentoring junior engineers and driving down customer friction at scale. What you’ll do: Own end-to-end frontend development for core crypto money movement experiences, including send, receive, and transaction status tracking across web and mobile Drive measurable improvements in CUJ latency, availability, and SLOs for the payment flows you own Build new user-facing features - such as contact management systems and real-time transaction status trackers Partner with product, design, and backend engineering to scope, prioritize, and ship projects that reduce CX contact rates and improve the customer experience Identify and resolve frontend performance bottlenecks across payment flows, reducing end-to-end latency and improving reliability for millions of users Required skills and experience: 5+ years of software engineering experience with deep expertise in React and React Native Proven track record of shipping consumer-facing products end-to-end in a high-scale environment, with a focus on perfo

About the role Chime's Growth Engineering team builds the member-facing experiences that move our business metrics, and we're scaling fast. We're looking for a full stack engineer who wants to own features end to end: the React and TypeScript interfaces members actually touch, the Rails services and APIs behind them, and the experiments that prove the work paid off. You'll influence architecture, ship across the stack, and maintain the ongoing health of the code. In this role, you can expect to Design, develop, test, refactor and scale consumer product features end to end — from member-facing React/TypeScript interfaces through the services and APIs that power them Build strong, resilient APIs and partner with mobile engineers on the contracts behind our React Native app Rapidly prototype and launch A/B tests, then use the results to decide what ships, what iterates, and what gets killed Own the quality of what you ship end to end — page performance, funnel conversion, accessibility, and the instrumentation that tells you it's working Collaborate with product, design, data science, and marketing to understand member pain points and come up with solutions Proactively identify opportunities for improving the reliability and scalability of our systems Work across the engineering team to improve and uphold high technical standards To thrive in this role, you have 5+ years developing software in a production environment at scale Proven experience with a modern front-end framework (React or comparable) and a server-side framework (Ruby on Rails or comparable) Comfort with TypeScript and component-driven UI development Experience working with transactional databases and caching, and with client-side state and performance Experience running experiments — A/B tests, feature flags Exposure to architectural patterns of large, high-scale web applications Growth or consumer experience as an added plus #LI-Onsite #LI-AC2 Below is the base salary offered for this role and le

At Beyond Finance, we've made it our mission to help everyday Americans escape the endless cycle of crippling debt and step into a brighter financial future. Through compassionate, individualized care, a culture focused on compliance and ethics, supportive user-centric technology, and customized financial solutions, we've helped over 1 million clients on their path to a brighter future. While we're proud of what we've already accomplished, we're searching for new collaborators to help us get to the next level! If you're looking to join a forward-thinking, rapidly growing organization with helping people as its number one goal, we want to hear from you. Role Overview As our Application Security Engineer, you will be the primary owner and driver of our application security program. You'll work hands-on with engineering teams to embed secure development practices, improve tooling and automation, and guide security considerations for new features, architectures, and services. This is a high-impact role where you'll shape the future of AppSec at a company that values security as a core part of product quality. What You'll Do Application Security Ownership Lead and evolve the company's application security strategy, roadmap, and day-to-day operations. Serve as the primary AppSec partner for numerous dev teams working on Ruby on Rails web apps, React Native mobile apps, and various other projects including Python and Go. Provide security guidance during design, development, and code review for new features and projects. Drive adoption of secure coding practices and threat-modeling across engineering teams. Tooling & Automation Manage and optimize existing AppSec tooling, including: GitHub Advanced Security (SAST, SCA, Secret Scanning) Invicti (DAST) Hadrian (ASM) AppDome (mobile application security) Cloudflare WAF Improve automation and integration of security tools into CI/CD pipelines. Identify and implement additional tools or processes to strengthen the security p