(Senior) Staff Engineer — Frontend (Web & Mobile)

About us Join bonify, Germany’s leading platform for credit scoring and financial management. We are on the mission to revolutionize the FinTech industry and make the credit score and financial data available and transparent for our users. We are seeking a talented Staff Engineer — Frontend (Web & Mobile) to join our dynamic team in Berlin. We are hiring a Staff / Senior Staff Frontend Engineer to lead the next evolution of our frontend platform, with a primary focus on our React Native mobile apps (iOS & Android) and supporting web (React) surfaces where they add value. This role goes beyond feature delivery: you will modernize frontend architecture, raise engineering standards, and help shape how frontend systems scale over time. You will act as a force multiplier across teams, setting technical direction while staying hands-on where leverage is highest. While this is a frontend-focused role, we value engineers with an end-to-end mindset. You’ll work closely with backend, product, and design partners to deliver high-quality, reliable user experiences. Your tasks Lead the modernization with an emphasis on mobile app architecture, while maintaining aligned web experiences where needed Drive best practices in React, React Native, performance, accessibility, and testing Improve frontend reliability, performance, and developer experience Partner closely with product, design, backend, and infrastructure teams Make pragmatic refactor vs. rebuild decisions and mentor senior engineers Requirements 8+ years of engineering experience (or equivalent impact) Deep experience with React and strong experience with React Native in production Proven experience leading large-scale frontend refactors or platform transformations Strong frontend system design fundamentals beyond UI implementation Experience with performance optimization, design systems, and frontend tooling Familiarity with CI/CD for web and mobile applications Comfort collaborating across teams, closely with backend experts, product and stakeholders, working end-to-end when needed If you enjoy shaping frontend platforms, improving performance and reliability at scale, and raising the bar across teams — we’d love to talk. What we offer As part of the bonify team, you'll have: The opportunity to take ownership from day one The chance to thrive in a dynamic and flexible startup environment. Access to extensive coaching and training programs through our personal development budget 30 vacation days Mental health support platform Subsidies for BVG and UrbanSportsClub 1:1 language classes in both German and English. The Company is committed to the principle that no employee or job applicant shall receive unfavourable treatment on grounds of age, disability, gender reassignment, race, religion or belief, sex, sexual orientation, marriage or civil partnership, pregnancy, and maternity. Please note, to be compliant with AML requirements, due to the specifics of fintech industries additional background checks are required (applicable only at the offer stage). If you're ready to make a meaningful impact in the world of FinTech and embark on an exciting career journey, apply now to join bonify! Find more English Speaking Jobs in Germany on Arbeitnow

About us Join bonify, Germany’s leading platform for credit scoring and financial management. We are on the mission to revolutionize the FinTech industry and make the credit score and financial data available and transparent for our users. We are seeking a talented Staff Engineer — Frontend (Web & Mobile) to join our dynamic team in Berlin. We are hiring a Staff / Senior Staff Frontend Engineer to lead the next evolution of our frontend platform, with a primary focus on our React Native mobile apps (iOS & Android) and supporting web (React) surfaces where they add value. This role goes beyond feature delivery: you will modernize frontend architecture, raise engineering standards, and help shape how frontend systems scale over time. You will act as a force multiplier across teams, setting technical direction while staying hands-on where leverage is highest. While this is a frontend-focused role, we value engineers with an end-to-end mindset. You’ll work closely with backend, product, and design partners to deliver high-quality, reliable user experiences. Your tasks Lead the modernization with an emphasis on mobile app architecture, while maintaining aligned web experiences where needed Drive best practices in React, React Native, performance, accessibility, and testing Improve frontend reliability, performance, and developer experience Partner closely with product, design, backend, and infrastructure teams Make pragmatic refactor vs. rebuild decisions and mentor senior engineers Requirements 8+ years of engineering experience (or equivalent impact) Deep experience with React and strong experience with React Native in production Proven experience leading large-scale frontend refactors or platform transformations Strong frontend system design fundamentals beyond UI implementation Experience with performance optimization, design systems, and frontend tooling Familiarity with CI/CD for web and mobile applications Comfort collaborating across teams, closely with backend experts, product and stakeholders, working end-to-end when needed If you enjoy shaping frontend platforms, improving performance and reliability at scale, and raising the bar across teams — we’d love to talk. What we offer As part of the bonify team, you'll have: The opportunity to take ownership from day one The chance to thrive in a dynamic and flexible startup environment. Access to extensive coaching and training programs through our personal development budget 30 vacation days Mental health support platform Subsidies for BVG and UrbanSportsClub 1:1 language classes in both German and English. The Company is committed to the principle that no employee or job applicant shall receive unfavourable treatment on grounds of age, disability, gender reassignment, race, religion or belief, sex, sexual orientation, marriage or civil partnership, pregnancy, and maternity. Please note, to be compliant with AML requirements, due to the specifics of fintech industries additional background checks are required (applicable only at the offer stage). If you're ready to make a meaningful impact in the world of FinTech and embark on an exciting career journey, apply now to join bonify! Find more English Speaking Jobs in Germany on Arbeitnow