Junior Full Stack Engineer – AI
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Job Description
Junior Full Stack Engineer building AI-powered software for grant funding. Developing full-stack features, AI pipelines, and production systems with CTO mentorship.
Responsibilities:
- Build the product across the backend, frontend, and AI pipeline
- Ship features end-to-end from backend development through to the user interface
- Work across React, Node/Express, Postgres, and AWS
- Build the platform's AI pipeline from week one
- Work with prompt engineering, context management, and AI evaluations
- Use AI-native development tools such as Claude Code or Cursor
- Trace and fix bugs in the production environment
- Work with Sentry, CloudWatch, and Postgres
- Work closely with the CTO and grant team to build solutions based on real user problems
- Receive direct technical mentoring and participate in code reviews
- Progressively take ownership of complete features and technical problems
- Improve the time from starting a project to a finished, submitted grant application through reliable features, automation, and product improvements
Requirements:
- 1–3 years of professional experience as a Software Engineer, or recent university graduation with strong technical projects
- Solid fundamentals in TypeScript and/or JavaScript
- Curiosity and willingness to work across the full stack, including React, Node / Express, Postgres, and AWS
- Strong desire to learn how production software is built and operated
- High self-motivation and ability to dig into problems rather than wait for instructions
- Comfortable receiving feedback and using it to improve technical skills
- AI-native approach to software development, with familiarity using tools such as Claude Code or Cursor
- User-first mindset, with a focus on building software that works for real people
- Strong curiosity, ownership, and willingness to take on increasing responsibility
- German language skills at B1 level or above are a nice to have
- English CV required for application
Benefits:
- Competitive entry-level salary and participation in company success
- €2,000 annual professional development budget
- Direct mentoring from the CTO
- Steep learning curve across a modern technology stack, AI-native development, and real production systems
- Real production ownership from day one, with increasing responsibility over time
- Fully remote work is possible
- Clear development path toward a senior engineering role
- Opportunity to work on a scalable SaaS product with clear market demand and genuine social impact
- Short decision paths and direct collaboration with the leadership team
- Team events and optional workations
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