We are looking for a Senior Full Stack Developer with a strong frontend focus to join a fast-growing product company building AI-powered solutions for small and medium-sized businesses.
You will work in a senior, highly autonomous engineering team, taking ownership of features from concept to production while helping shape both the product experience and technical direction.
Responsibilities
- Own and deliver complex features across the entire application stack.
- Lead frontend development initiatives and continuously improve user experience, usability, and visual quality.
- Design and implement scalable, maintainable, and production-ready React applications.
- Collaborate with product and engineering stakeholders to define technical solutions and architecture.
- Extend and maintain Python-based backend services using FastAPI and Django.
- Analyze user flows, edge cases, and failure scenarios before implementation.
- Contribute to architectural discussions, technical decisions, and code quality improvements.
- Utilize AI-assisted development tools as a core part of the engineering workflow.
- Take full ownership of features throughout their lifecycle, from planning to deployment.
Requirements
- Proven experience delivering complex software projects in a professional environment.
- Strong expertise in React and modern frontend development practices.
- Experience building accessible, responsive, and high-quality user interfaces.
- Solid full-stack development experience with Python-based backends.
- Hands-on experience with FastAPI and/or Django.
- Strong understanding of software architecture, system design, and engineering best practices.
- Experience working in startup or fast-paced product environments.
- Ability to work independently and take ownership of technical decisions.
- Practical experience using AI-powered development tools such as Cursor, Claude Code, GitHub Copilot, Codex, or similar.
- Strong English communication skills.
Will Be a Plus
- Experience building AI-native products or agentic AI systems.
- Familiarity with LLM-based applications and AI workflows.
- Experience working with PostgreSQL and AWS.
- Background in B2B SaaS or fintech products.
- Knowledge of German accounting systems and standards.
- German language skills.
What We Offer
- Competitive compensation package.
- Health insurance coverage.
- Paid vacation and public holidays.
- Flexible work environment with a high level of autonomy.
- Access to modern AI-powered development tools.
- Opportunity to influence product and technical decisions.
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