Build and ship a native mobile app for iOS and Android, achieving parity with the web dashboard.
Set the technical foundation for the app's architecture, integrating push notifications and anti-smishing features.
Own releases and reliability, working closely with product, design, and security teams.
VanishID is a growing company focused on keeping people and enterprises safe from digital threats. They are a remote-first team seeking a mobile engineer to own their mobile app end-to-end, with an open runway for growth.
Architect and lead development of high-performance React Native applications for iOS and Android, ensuring scalability and architectural integrity.
Drive cross-platform development with shared UI components and design systems, collaborating with product managers and designers.
Provide technical mentorship to engineers, fostering best practices and code quality through code reviews and knowledge sharing.
Trust Wallet is the leading non-custodial cryptocurrency wallet, trusted by over 200 million people worldwide to securely manage and grow their digital assets. The company operates with a global, diverse team and a flat organizational structure, emphasizing learning and career development.
Build internal and first-party applications on Tempo for agents and humans.
Partner with startups and enterprises to integrate Tempo into their payment systems.
Develop deep understanding of Tempo blockchain, navigate codebases, and ship products across customer environments.
Tempo is a layer-1 blockchain built for stablecoins and real-world payments, originating from Stripe's payment expertise and Paradigm's crypto tech. We're a team of crypto-optimists building infrastructure for onchain economic flows, moving fast with design partners like Anthropic, DoorDash, and Visa.
Build and scale patient-facing mobile applications using React Native across iOS and Android.
Own end-to-end delivery of impactful features, collaborating with Product, Design, and backend engineers.
Evolve mobile architecture, improve engineering quality, and mentor teammates to ensure long-term platform success.
Rula is a mental health company dedicated to providing evidence-based, compassionate care and reducing stigma around mental health. They are a remote-first organization with a focus on inclusion and well-being, operating across most U.S. states.
Build and ship high-quality native iOS features using Swift for financial experiences.
Create smooth, intuitive mobile experiences by simplifying complex financial workflows.
Collaborate closely with product, design, backend, and AI teams to transform ideas into production-ready solutions.
The company builds next-generation financial products powered by artificial intelligence. It is a global startup with a fast-paced engineering culture focused on innovation and customer experience.
Design, develop, and evolve Thunderbird’s iOS application with a focus on performance, reliability, and security.
Collaborate with mobile engineers, product management, and UX to deliver high-quality iOS experiences.
Own projects from investigation through delivery, ensuring alignment with mission and technical best practices.
MZLA Technologies Corporation builds privacy-respecting communication and productivity tools, including the open-source Thunderbird email app used by over 20 million people. The company is a small but growing team of 60+ people distributed across seven countries, with a collaborative, inclusive culture rooted in open-source principles.
Own features on web and mobile platforms, including Phantom Extension, Terminal, and mobile app.
Lead initiatives to add support for new blockchains and launch complementary products.
Interface directly with users and developers to collect feedback and inform product direction.
Phantom is a modern money app that combines crypto-powered finance with intuitive tools for managing, spending, and growing money. With a community of 20M+ users and a team of experienced builders, they foster a culture of security, speed, and user experience.
Design and improve core systems, SDKs, and backend services that enhance product experiences across multiple platforms.
Collaborate with product teams to deliver simple, reliable, and scalable solutions.
Architect solutions that enable faster loading, intelligent content processing, and improved product performance.
The company builds a widely used audio information platform that helps millions of people access and engage with information. It offers a fully remote, entrepreneurial culture with autonomy and minimal bureaucracy.
Build and ship mobile features for Android and/or iOS.
Create simple mobile flows for insurance, payments, claims, renewals and financial services.
Work with product, design and backend teams to turn complex journeys into usable mobile products.
We are a mobile-first insurance platform that makes money smart, reliable, and within reach for everyone. We have teams worldwide with over 20 nationalities and are growing from offices and remotely.
Help own and build out new features within our cross-platform TypeScript React Native app and Golang backend APIs.
Manage releases using cohorting, feature flags, and app-store infrastructure to ensure safe rollout to millions of active users.
Develop clean, scalable, robust, and testable code while maintaining strong collaboration with product, design, and business teams.
Sezzle is a fintech company that revolutionizes shopping with interest-free installment plans, blending cutting-edge tech to make shopping smarter and more accessible. They are a dynamic, innovative team in a rapidly growing environment, combining brilliant engineers, data enthusiasts, and creative thinkers.
Build and maintain web applications for scientific communities and research-focused users.
Develop robust APIs, backend services, and scalable application architectures.
Contribute to Web3 infrastructure initiatives including blockchain features and smart contracts.
A mission-driven company building products at the intersection of technology, science, and decentralized innovation. They are a remote-first, async-friendly team with a small, collaborative culture focused on meaningful global impact.
Take ownership of an existing mobile application, reviewing its codebase and architecture to complete development and launch on iOS and Android.
Independently manage the full technical lifecycle, including troubleshooting, integrations, cloud infrastructure, and release preparation.
Work with React Native, Firebase, Google Cloud, and third-party APIs to ensure reliable functionality from development through post-launch support.
Jobgether is an AI-powered job matching platform that connects candidates with hiring companies through automated matching. The company uses artificial intelligence to review applications and streamline the hiring process, focusing on efficiency and fairness.
Protect applications trusted by millions of users in the Web3 ecosystem.
Combine hands-on security engineering with threat modeling, code reviews, and developer enablement.
Embed security throughout the software development lifecycle to build resilient products.
This company builds products and infrastructure for the Web3 ecosystem, focusing on digital assets, identities, and blockchain technology. It is a globally distributed, remote-first team with a culture of security, autonomy, and innovation.
Design and develop high-quality native Android (Kotlin) and iOS (Swift) applications.
Build cross-platform mobile apps using Flutter and Dart with a consistent user experience.
Optimize app performance, integrate with RESTful APIs, and manage App Store/Play Store deployment.
Eltropy is a fintech company that provides a digital communications platform for community banks and credit unions, enabling secure and compliant engagement through text, video, chat, and chatbot technology. It is a fast-growing startup that values transparency, customer centricity, and a 'nothing is impossible' attitude.
Design and deliver product features using Flutter and Dart.
Work on mobile applications for both Android and iOS with a focus on quality.
Collaborate with senior engineers and apply software craftsmanship principles.
We are a company focused on building high-quality mobile applications using Flutter and React. Our culture emphasizes continuous learning, collaborative engineering, and software craftsmanship.
Design and build user-facing components of services and products using modern web technologies.
Collaborate with backend engineers to integrate APIs and ensure seamless alignment.
Identify and address performance bottlenecks to enhance user experience.
Provable is a company building zero-knowledge applications for the Shield ecosystem. They are a fast-growing team passionate about privacy and transforming the digital age.
Build mobile applications using React Native, Flutter, Swift, or Kotlin.
Integrate device capabilities and backend services via APIs.
Debug, optimize, and release apps to App Store and Google Play.
US Security & IT is a partner company specializing in security and IT solutions. They are seeking independent mobile app developers for diverse projects, offering flexible remote work.
Build and operate Go backend services for key management and signing at scale.
Design and implement cryptographic recovery and trust models for non-custodial wallets.
Work with external auditors, Kubernetes, and distributed systems in a security-critical environment.
Offchain Labs builds the Arbitrum stack, the leading Ethereum scaling solution. They are a well-funded company with $124 million in backing, a small but high-ownership team, and a culture of security-first engineering and collaborative review.
Build and own the mobile application architecture and development process from the ground up using React Native and Expo.
Manage the complete mobile application lifecycle including development, testing, releases, and ongoing improvements.
Collaborate with product and engineering teams to define and deliver impactful features.
They are a fast-growing AI technology company building next-generation software solutions that transform enterprise workflows. They have a remote-first culture with high autonomy and focus on innovation.
Design and implement new features from scratch for the core iOS product.
Perform code reviews, write unit tests, and fix bugs to ensure high-quality, stable app performance.
Contribute to building and maintaining a consistent design system across the app.
Plata Card is a fintech company challenging the status quo of incumbent finances. They offer a high-tech environment with a supportive, collaborative team that values innovative spirit, honest feedback, and celebrating achievements.