Senior Full Stack Developer (Frontend Expertise)

Safe • Full-time • Berlin • 4m ago

About Safe

Safe is redefining the future of self-custodial onchain treasury management. It currently holds $>60B+ in onchain assets. Safe{Wallet} web and mobile is the de-facto standard for crypto native organizations, individuals and groups to co-manage assets via Multi-sig.

Safe{Wallet} infrastructure is widely used by developers integrating Safe. It is used for multi-million dollar treasury operations and governance by top protocols like World, Aave, Balancer and Gnosis. With more innovations in security and user experience, Safe is poised exponential growth in DeFi and onchain asset management.

💻 About the role:

We are seeking a Senior Full Stack Developer with strong frontend expertise to take end-to-end ownership of project delivery. You will collaborate closely with our tech lead and cross-functional team to design, build, and maintain high-quality, secure, and scalable applications with a primary focus on frontend (React, TypeScript) and the ability to contribute effectively to backend (NestJS, Node.js) development.

🗃️ What you will be doing:

Own engineering delivery for assigned projects, from research to release
Conduct technical research and propose solutions to PM-defined problems
Build high-quality, scalable features - primarily in frontend React/TypeScript, with backend (NestJS, Node.js) contributions
Implement testing and QA practices across the stack
Participate in peer code reviews and support cross-team knowledge sharing
Maintain strong security practices in development
Collaborate with stakeholders to meet timelines and ensure delivery quality

🎒 What you will bring:

Proven blockchain development experience (Ethereum preferred)
Strong frontend expertise with React & TypeScript
Backend skills with NestJS, Node.js, and security best practices
Ability to design composable TypeScript structures
Experience with open-source workflows

Core Competencies:

Collaborative Owner: You balance independent work with active team collaboration.
Technically Sharp: You excel in the required stack and apply best practices.
Quality & Security Focused: You deliver secure, tested, and maintainable code.
Adaptable Builder: You work across frontend, backend, and integrations as needed.
Solution-Oriented: You research, propose, and deliver effective solutions.
Blockchain Fluent: You bring hands-on Ethereum/blockchain development experience.

🎁 What we can offer you:

💻 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.
🏝️ 30 vacation days as standard: Take the time off you need no matter where you work. All of our contributors get 30 vacation days by default, with public holidays in addition.
📚 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 style that suits you best.

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.