Senior Frontend Developer - AI/LLM Start Up - React/Next - 100k

We are a fast-growing, profitable startup trusted by major clients, including top-tier enterprises and public institutions. We develop tools that span the full AI lifecycle, with a strong presence in the open-source community. Our culture values innovation, inclusivity, and meaningful impact over strict checkboxes. If you're passionate about building great products and want to be part of something transformative, we’d love to hear from you—even if you don't meet every requirement.

What You'll Do

• Design and build scalable, user-friendly frontends using modern frameworks like Next.js and React.
• Collaborate with cross-functional teams to conceptualize and implement intuitive UIs that seamlessly integrate AI models and tools.
• Contribute to a smooth user experience by integrating APIs and ensuring frontend performance and responsiveness.
• Participate in code reviews, refactoring efforts, and implementation of frontend best practices.
• (Optional) Support backend development using Python (Django/FastAPI) as needed.
• (Optional) Contribute to DevOps practices such as CI/CD and containerization, with tools like Docker & Kubernetes.
• Explore and apply AI tools that enhance frontend workflows and productivity.

What you bring:

• A degree in computer science or related field, or equivalent experience through personal or professional projects.
• Proven expertise in JavaScript/TypeScript with React and Next.js.
• Nice to have: Basic understanding or interest in backend development with Python and frameworks like Django or FastAPI.
• Familiarity with version control, testing frameworks, and responsive design.
• Experience working with LLMs or AI agents, or a strong interest in building UIs for AI-powered features.
• Passion for AI and curiosity about its application in product development.
• Strong problem-solving skills and an eye for good UX.
• Fluent in English; German is a bonus.

Ability to work on-site at least 2/3 days a week in Berlin or Bremen.

Why Join Us?

• Work directly with an experienced and passionate team shaping the future of AI-powered products.
• Influence product direction and technical decisions from day one.
• Attractive salary package with an employee participation program (VSOP).
• Fast access to cutting-edge AI tools to enhance your work.
• A supportive, diverse, and impact-driven team that values creativity and experimentation.