Contract Software Developer Jobs in Berlin

ABOUT YOU is one of Europe’s fastest growing e-commerce companies. Based in Hamburg and Berlin, we operate at the intersection of fashion and technology. Our mission is to rethink online shopping and make it personal and seamless. This takes more than good ideas. It takes people who take initiative and challenge the status quo. We believe in flat hierarchies, direct communication, and pragmatic decisions. No long approval chains. Just ownership, trust, and clear responsibility. We work hard, but we also believe in enjoying the ride together - over team lunches, afterwork drinks, company events, or a quick coffee in between meetings. If this sounds like you, ABOUT YOU could be the right place to bring in your perspective.

• Guide the team through complex technical challenges, breaking down large projects into manageable tasks and ensuring timely and quality delivery of new e-commerce features
• Mentor and coach Frontend Developers, QA Engineers, helping them grow their technical skills, understand system architecture, and advance their careers
• Act as the key technical partner to the Teamlead Product to align engineering effort with business goals, product vision, and user experience requirements to share a joint vision between product and tech
• Act as the primary technical contact person for the team. Ensure clear and continuous alignment with Tech Leads from other teams regarding shared backend architecture, API schemas, and integration contracts
• Define and communicate the technical roadmap and architecture for the ABOUT YOU website application, ensuring scalability, performance, and security, especially during peak e-commerce traffic
• Ensure the team's technical strategy and delivery methods are aligned with the overall vision set by the App & Web Tech Lead
• Own the monitoring and optimization of the website's Core Web Vitals and overall application performance, collaborating with operations to ensure high availability and fast load times
• Take technical ownership of the website application, ensuring its short- and long-term maintainability, technology stack health, and adherence to company-wide standards
• Actively participate in the hiring, interviewing, and onboarding of new engineering talent, helping to grow the team effectively
• Research, evaluate, and propose new technologies and tools that can improve the customer experience or development efficiency of the ABOUT YOU website
• Proactively identify and prioritize technical debt with the Product Lead, ensuring a balance between feature development and platform longevity

• 6+ years of programming experience in UI or Web development
• First experience of leading (discipline or professional) is good to have
• Exceptional problem-solving and algorithmic thinking skills, coupled with a deep understanding of software design patterns and clean code principles
• Expert-level knowledge and practical experience in building modern, scalable web applications using React, TypeScript, and advanced CSS/Styling techniques
• Proven experience in analyzing and optimizing website performance, including deep knowledge of browser rendering, bundling, and techniques to achieve best-in-class Core Web Vitals and a fast user experience using tools like DataDog or similar platforms
• Good understanding of API design principles (e.g., REST, GraphQL, etc.) and experience in architecting robust and efficient data flow between the frontend application and backend services
• Good working knowledge of Node.js for modern frontend toolchains, build processes, and potential Backend-for-Frontend (BFF) services
• Demonstrated ability to define and implement a robust testing strategy across Unit, Integration, and End-to-End (E2E) testing
• Hands-on experience implementing and maintaining CI pipelines to ensure continuous code quality and stable releases
• You act as a mentor who inspires and guides engineers to prioritize continuous growth and learning while maintaining high team productivity
• You demonstrate proactive self-drive and take full accountability for the team's commitments, technical outcomes, and continuous improvement
  

Nice To Have

• Experience managing or deeply understanding the nuances of hosting your own application infrastructure (e.g., Cloud providers, containerization)
• Basic understanding of database concepts and how they interact with the application layer
• Direct experience working on high-traffic e-commerce platforms, understanding the unique challenges of inventory, checkout, and personalization at scale
• Hands-on experience in automating development/QA workflows using AI tools is a strong bonus

Your perks at a glance: Visit our benefits page.

Simply apply online via our career page - we will get back to you as soon as possible!

A Place Where You Can Be You
We take it as our responsibility to create an environment where everyone feels welcome, exactly as they are.
Different backgrounds and perspectives make us stronger and shape our culture in ways that matter.
What we stand for internally, we stand for as a brand: acceptance, inclusion, and a fairer approach to fashion.