Senior Full Stack Engineer (Backend)

About Safe

Safe is redefining the future of selfcustodial onchain treasury management. It currently holds $>60B+ in onchain assets. Safe{Wallet} web and mobile is the defacto standard for crypto native organizations, individuals and groups to comanage assets via Multisig.

Safe{Wallet} infrastructure is widely used by developers integrating Safe. It is used for multimillion 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:

Were looking for a Senior Full Stack Engineer to join our Core Experience team and contribute to the evolution of Safe{Wallet}, a leading smart wallet in the Ethereum ecosystem. Youll take endtoend ownership of features, from conception through to production with a focus on backend development while also contributing across the stack.

🗃️ What you will be doing:

• Build and maintain backend services supporting the Safe{Wallet} app

• Contribute to frontendmobile development when needed (ReactReact Native)

• Own the lifecycle of features from design to deployment and monitoring

• Collaborate closely with staff engineers, product managers, and designers

• Debug and resolve issues across services and infrastructure boundaries

• Share knowledge and support the teams learning culture

• 🎒 What you will bring:

  • Strong experience with TypeScript and backendfrontend systems

  • Prior experience in Web3 and Ethereumbased ecosystems

  • Proven success in developing and shipping features from scratch

  • Understanding of software principles: SOLID, DRY, clean code, algorithms

  • MustHave Skills

    • TypeScript (Node.js)

    • System Architecture (Backend & Frontend)

    • Web3 tooling and concepts

    • Ownership mindset and proactive problem solving

    • Clear communication and team alignment

    • NicetoHave

      • Experience with React React Native

      • Docker and DevOps familiarity

      • Computer Science degree or equivalent knowledge

      • Core competencies

        • Owner Mentality: Takes full responsibility for outcomes, not just tasks

        • Full Stack Problem Solver: Debugs and resolves issues across multiple tech layers

        • Collaborative Communicator: Communicates clearly, escalates early, fosters shared understanding

        • Curious & Web3 Fluent: Demonstrates a strong understanding of Web3 and eagerness to explore new tools

        • Humble Expert: Balances deep expertise with openness to feedback and learning

        • Agile SelfManager: Organises work effectively in async, fastpaced environments

        • 🎁 What we can offer you:

          • 💻 Home Working Budget: Personalise your home office with a dedicated budget! Choose from a sleek desk, topnotch headphones, a comfy chair, and more. Were 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. Its the perfect opportunity to explore new ideas and contribute to innovative endeavours.

          • ⌛ Flexible Work Schedules: Embrace worklife 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.