Senior Full-Stack Developer

Quick Facts

• Role: Senior Full-Stack Developer (hands-on)

• Work style: Hybrid; at least 3 days/week in the Berlin office (full remote not vorgesehen)

• Focus: High technical ownership across web + mobile, AWS backend, and AI-agent/LLM workflows

Description

You will help build and scale the technical foundation of a platform used by schools across Germany. The role offers significant architecture and product design influence, including end-to-end responsibility from idea and development to productive operations. You will work closely with Product and Operations in a small, focused team.

Responsibilities

• Hands-on development of web and mobile products with React, React Native, and TypeScript

• Evolve a clean, maintainable, and scalable codebase

• Own backend, infrastructure, and architecture on AWS

• Work with serverless infrastructure including Lambda, DynamoDB, and Cognito

• Make architecture decisions and develop technical standards

• Develop and integrate AI agents and AI-based workflows

• Take end-to-end responsibility from product idea and architecture through development to production operations

• Collaborate closely with Product and Operations and take technical responsibility for the core product

• Help shape how AI agents are integrated into the product and processes

Requirements

• Multi-year experience as Senior Full-Stack Developer / Software Engineer

• Strong frontend background, especially React and TypeScript

• High expectations for clean code, maintainability, and software quality

• Practical experience with AWS and modern cloud/serverless architectures

• Ability to think holistically about systems and architecture

• Practical experience with AI agents, LLM-based applications, or agentic workflows

• Hands-on mindset and willingness to develop a significant portion of the time

• German skills (at least B2)

• Responsibility, clarity, and open communication

Benefits

• High technical ownership and room to shape architecture, product, and the technical roadmap

• Direct impact in a product with social impact and nationwide reach

• Competitive, above-average salary

• Small, focused team with short decision paths and flexible working hours