(Senior) Software Developer Frontend / React (m/w/d)

Job description

Your mission You develop features and improvements across the full stack of our SaaS application – both on the backend (Django / Django REST Framework, FastAPI) and the frontend (React / TypeScript) – consistently leveraging AI-assisted development tools like GitHub Copilot or Cursor to deliver faster and more efficiently. As an experienced software developer, you collaborate closely with both development teams and coordinate with all relevant stakeholders (product management, UX, sales, etc.). You actively help drive our AI First Development Culture: you explore new tools, share best practices within the team, and help integrate AI meaningfully into our daily workflows. You support the technical documentation of the product. You conduct AI-assisted code reviews, help apply AI tools in day-to-day development, and support ticket distribution and steering of the development process. Your profile A completed degree in computer science or a related IT-focused field, or a completed vocational training as an IT specialist in application development (Fachinformatiker/-in Anwendungsentwicklung). At least 3 years of relevant full-time professional experience – ideally in roles where you worked across both backend and frontend. Experience with Python and backend development using Django / Django REST Framework; experience with FastAPI is a plus. You are confident in designing and developing REST APIs, as well as working with relational databases (e.g. PostgreSQL) and ORM-based data modeling. You have hands-on experience with React and building single-page applications; you are confident working with JavaScript / TypeScript and the ES6 standard library. Experience with frontend frameworks such as Ant Design or Material UI is a plus. You work routinely with AI-assisted coding tools (e.g. GitHub Copilot, Cursor, or comparable) and know how to critically assess their output and integrate it sensibly into existing workflows. You're eager to help shape our AI First culture – you try out new tools, share your experiences, and help the team work smarter. Beyond home office, you also value exchanging ideas with colleagues and the sense of team spirit on site. Why us? At Athereon GRC, we develop smart software that advances companies, organizations, and institutions across the private sector, public sector, and social services in the areas of information security and complianc…