# Full-Stack Developer - AI Trainer (Germany) at Anyone AI

> Open job at Anyone AI in Berlin, Germany. Workplace: Remote (Germany).

Source: Germany Dev Jobs, https://germanydevjobs.com/jobs/anyone-ai-full-stack-developer-ai-trainer-germany-62qma38
Posted 9 July 2026. Last checked on the employer's career site: 10 November 2026.

## Facts

- Company: [Anyone AI](https://germanydevjobs.com/companies/anyone-ai)
- Location: Berlin, Germany
- Workplace: Remote (Germany)
- Employment type: Contract
- German: Not required
- English: Fluent
- Skills: C#, Go, Java, JavaScript, Jest, Python, TypeScript
- Not mentioned in the job post: salary, visa sponsorship, relocation, where you can apply from

## Job description

Anyone AI is recruiting skilled Full-Stack Developers to work on a project with a leading AI lab.

**Qualifications:**

- Advanced professional written proficiency in English
- 3–7 years of professional software engineering experience
- Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go
- Backend or full‑stack development experience in production systems
- Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing)
- Proven ability to debug and navigate large, multi‑file codebases
- Experience with code reviews, refactoring, and production migrations

**Engagement:** Part-time, project-based expert evaluation work

**Work Type:** Remote

Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy.

This is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors’ allowances).

**Responsibilities:**

Contributors will:

- Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing
- Write clear natural-language specifications and reference implementations
- Develop and extend unit and integration test suites
- Review peer-generated tasks for correctness, clarity, and realism
- Identify edge cases, ambiguities, and potential failure modes
- Ensure alignment between specifications, code, and expected outputs

**Expected Outcomes:**

- High-quality, production-realistic coding tasks
- Complete and correct reference implementations
- Robust test coverage and validation artifacts
- Structured, actionable peer review feedback

## How to apply

Apply on the job page, https://germanydevjobs.com/jobs/anyone-ai-full-stack-developer-ai-trainer-germany-62qma38: its Apply button opens the employer's own application page.

## More jobs from Anyone AI

- [AI Coding Evaluator](https://germanydevjobs.com/jobs/anyone-ai-ai-coding-evaluator-h1wcy7m): Anyone AI, Berlin, Germany. Remote (Germany). Posted 12 October 2026.
- [Computer Science PhD (Germany)](https://germanydevjobs.com/jobs/anyone-ai-computer-science-phd-germany-oezm59e): Anyone AI, Berlin, Germany. Remote (Germany). Posted 4 June 2026.
- [Software Engineering AI Trainer (Germany)](https://germanydevjobs.com/jobs/anyone-ai-software-engineering-ai-trainer-germany-oab2y8u): Anyone AI, Berlin, Germany. Remote (Germany). Posted 2 June 2026.