Senior Software Engineer - Web

• Architect & Build: Design, develop, and operate resilient, high-performance, and secure web experiences using technologies like Vue.js, Node.js, TypeScript, Nuxt, and NextJS. You will build the features that customers interact with daily, from secure authentication flows to engaging gamification experiences.
• Lead Complex Feature Delivery: Own the end-to-end delivery of significant features, from technical design through implementation to production monitoring. You will tackle challenging problems like building fraud-resistant systems, creating seamless onboarding experiences, and developing self-service profile management.
• Champion Web as an Experimentation Platform: Help establish our web platform as the fastest path from idea to validated learning. You will build with A/B testing and rapid iteration in mind, enabling the business to experiment at speed and validate ideas fast.
• Drive Frontend Excellence: Advocate for and implement best practices in testing, code quality, and frontend architecture within your team. You will lead code reviews, mentor other engineers, and raise the bar for what good looks like.
• Instrument for Observability: Ensure the features you build are observable and reliable. You will implement monitoring, error tracking, and performance measurement that gives the team confidence in production and enables data-driven improvements.
• Collaborate Deeply: Work hand-in-hand with Product Managers, Backend Engineers, Designers, and Marketing stakeholders to shape solutions that balance customer needs, technical constraints, and business goals.
• Contribute to Cross-Team Initiatives: Participate in frontend architecture discussions and contribute to shared tooling and patterns that benefit other teams in the Consumer domain. Your influence will extend beyond your immediate team as you help shape web best practices.
• Foster Security Awareness: In a team that handles authentication and fraud prevention, security is essential. You will follow security best practices, identify potential vulnerabilities, and help ensure customer data and accounts stay safe.

Do you have experience in TypeScript?, * Solid experience in frontend software engineering, with a track record of designing, building, and maintaining complex, production-grade web applications. We value quality of impact over years of tenure.

• Strong proficiency in modern JavaScript/TypeScript and frameworks like Vue.js or React.js.
• Hands-on experience with modern frontend architecture, including server-side rendering (e.g., Next.js or Nuxt.js) and understanding of how frontend systems scale.
• Experience building secure, reliable user-facing features, ideally in areas like authentication, user management, or e-commerce.
• Demonstrated ability to lead feature delivery end-to-end, mentor other engineers, and drive quality improvements within a team.
• Experience with modern development practices including CI/CD pipelines, automated testing (unit, integration, E2E), and observability for frontend applications.
• Excellent communication skills and the ability to collaborate effectively with cross-functional partners including Product, Design, and Marketing.
• AI-assisted development experience and enthusiasm, actively leveraging coding agents like Claude Code, Cursor, GitHub Copilot, or similar tools to accelerate your workflow. We believe AI tools are essential for modern development.

Nice to Have

• Experience building authentication, identity, or security-focused features
• Background in gamification, loyalty programs, or marketing technology
• Experience with fraud prevention or risk systems
• Familiarity with e-commerce, marketplaces, or quick commerce
• Frontend observability experience (Sentry, Datadog, Lighthouse, Core Web Vitals)

• A €1000 annual L&D budget as well as individual coaching options to ensure you have plenty of opportunities to learn, grow and achieve your goals
• 26 days of vacation, +1 day every year up to a maximum of 30 days
• A mobility budget of 35 EUR per month for Deutschland Ticket subsidy
• A discount on your Urban Sports Club membership
• Attractive company pension options
• Unlimited access to an e-learning and development platform, MyAcademy, including online German courses
• Online discounts with Corporate Benefits and Future Bens
• A cool discount off your personal Flink orders; be the first to test out new products!
• A modern and dog-friendly office in the heart of Berlin - lots of delicious lunch spots available within short walking distance

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Flink is the leading quick commerce player in Europe. We are on a mission to give people back time: You can order your groceries through our app and we deliver to your doorstep in minutes. We carry 2,500 products with a focus on the leading brands in each category. We aim for sustainability by making deliveries on electric bikes and utilizing recyclable packaging. Flink launched in February 2021 and already operates in more than 90 cities in Germany, and the Netherlands. The business generated more than EUR 500m in revenues in 2023 and is operationally profitable. Flink is backed by the world's most renowned tech investors, including Prosus, Mubadala, and Bond, and strategic investors like Doordash and REWE. We take great pride in being an inclusive employer that offers equal opportunities, and we celebrate the diversity and multiculturalism of our team. We're growing fast and always pushing ourselves to do be