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Penumbra Labs is part of a decentralized open-source ecosystem that shares the mission of bringing privacy to proof-of-stake, allowing users to transact, stake, swap, and marketmake without disclosing their personal information, account activity, or trading strategies to the entire world – while still permitting selective disclosure to appropriate parties. Working at Penumbra Labs is a unique opportunity to work on exciting problems and build new financial infrastructure. We offer a collaborative work environment and a meaningful stake in the creation of a new protocol.As a Contract-to-Hire Mobile Developer, you’ll work closely with our product and engineering teams to create mobile experiences that align with our mission. You will be responsible for developing and maintaining a React Native application with strong TypeScript integration, working on both iOS and Android components. Experience with cryptocurrency wallets and knowledge of Rust are beneficial for this role, as we continue to explore the intersection of mobile and blockchain technology. Key Responsibilities:
Develop, test, and maintain features for our React Native mobile application, ensuring high performance and responsiveness. Implement state management solutions and UI components using popular libraries (e.g., Tailwind, >
Required Skills & Qualifications:
3+ years of experience in React Native development with strong TypeScript skills. Proficiency in React Native core components for both iOS and Android. Strong understanding of state management and experience with popular UI libraries, such as Tailwind and >
Nice-to-Have Skills:
Experience with cryptocurrency wallets or working knowledge of secure transaction handling. Knowledge of Rust programming and experience with FFI (Foreign Function Interface) for integrating Rust binaries with React Native applications.
Contract Details:
Duration: 3-6 month contract with the opportunity to join the team full-time.
How to Apply: If you're a proactive mobile developer with a strong foundation in React Native and a passion for privacy-focused technology, we’d love to hear from you. Please submit your resume and portfolio showcasing relevant projects.
Apply Now:
Safe is the account abstraction leader on Ethereum and the EVM with the most secure smart wallet infrastructure and platform. Our mission is to accelerate the transition to smart accounts. For more information about Safe, check out our website.
You’ll be joining a growing team that currently includes 70+ people overall. This role is based in Berlin (🇩🇪). Most of our team is based in Berlin, Germany, but we also have awesome teammates in Switzerland 🇨🇭, Spain 🇪🇸, Portugal 🇵🇹 and other countries.
As a Senior Software Engineer Mobile, you will be responsible for development of a mobile app from concept to launch, focusing on building high-quality, efficient, and responsive code.
You will collaborate with cross-functional teams to define and implement features, optimizing app performance, and continuously integrating new technologies. Additionally, the role emphasizes mentoring peers and fostering a culture of code quality and continuous improvement through code reviews and best practices.
Responsibility to develop a new mobile app from scratch.
Architect, develop and execute on our product vision.
Build performant and high fidelity code.
Collaborate with cross-functional teams to define, design, and ship new features.
Ensure the performance, quality, and responsiveness of application.
Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
Participate in code reviews and contribute to a culture of continuous improvement.
Work closely with product managers, designers, and other engineers to understand and refine product requirements.
Provide mentorship to your peers in the broader engineering team through code reviews and education on best practices.
Ensure proper documentation (Pragmatic: As much as necessary, as little as possible).
Strong React Native proficiency: 4+ years with deep understanding of core libraries, component lifecycle and performance optimization.
Solid understanding of the full mobile development life cycle (incl. CI/CD, Mobile Testing, App Review).
TypeScript - professionally used for 4-5 years.
Professional experience in Web3 (2+ years).
Great with unit and functional testing and debugging.
Understand the differences between iOS and Android platforms in the way they work, their capabilities, common pitfalls and limitations.
Confident git user.
Knowledge of security best practices in web3 and mobile development, including encryption and secure key management.
Active on GitHub, Open Source contributions.
Familiarity with crypto wallets.
Experience working with Figma, Google Analytics, Firebase.
💻 Home Working Budget: Personalize your home office with a dedicated budget! Choose from a sleek desk, top-notch headphones, a comfy chair, and more. We're committed to creating a workspace that inspires you.
🔥 State-of-the-Art Hardware: Enjoy the latest laptop of your choice! We understand the importance of having the right tools and we provide you with the best-in-class hardware for seamless productivity.
📚 Continuous Learning: Invest in yourself with our personal education and conference budgets. Stay ahead of the curve by attending conferences, workshops, and courses that align with your professional growth.
🎨 Innovative Fridays: Unleash your creativity! Spend Friday afternoons diving into research or working on a side project within our exciting ecosystem. It's the perfect opportunity to explore new ideas and contribute to innovative endeavours.
⌛ Flexible Work Schedules: Embrace work-life balance with our flexible working schedules. We understand that everyone has unique needs, and our hybrid work policies empower you to choose a working >
Please apply with your English resume.
Variety is the spice of life and a celebrated component of our culture. At Safe, we strive to create an inclusive environment that empowers our employees. We believe that our products and services benefit from our diverse backgrounds and experiences and are proud to be an equal opportunity employer: all qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability.
Apply Now: