Senior AI Developer & Technical Mentor

Project overview

For an internationally active company, we are looking for an experienced freelance Senior AI Developer & Technical Mentor (m/f/d) to jointly develop sophisticated AI applications and sustainably build internal development expertise.

Individual AI applications and integration solutions are already being developed within the company. For more complex architectures, multi-stage AI processes, and production-ready applications, an internal developer is to be supported by an experienced senior in tandem.

We are therefore looking for a hands-on Senior AI Developer who will actively co-develop, establish technical standards, and impart knowledge in a practical way through pair programming, code reviews, and joint architecture work.

Responsibilities

• Joint development of productive LLM applications with an internal developer
• Implementation of complex AI use cases with Python and various LLM APIs
• Development of tool or function calling, RAG, and agentic or multi-stage workflows
• Structuring complex requirements into clearly defined and testable components
• Joint requirements analysis and architecture planning
• Definition of technical work packages and milestones
• Pair programming and regular code reviews
• Support with debugging, error analysis, and quality assurance
• Conveying understandable architecture and technology decisions
• Establishment of repository structures, coding conventions, and development standards
• Building automated tests and a robust definition of done
• Creation and improvement of technical documentation
• Gradual handover of technical responsibility to internal developers
• Implementation of security, data protection, and AI governance requirements

Requirements

Framework Conditions

• Several years of practical experience in developing productive AI and LLM applications
• Very good knowledge of Python, ideally FastAPI
• Sound experience with JavaScript or TypeScript
• Experience with modern frontend technologies, ideally Svelte
• Good knowledge of PostgreSQL
• Experience with Docker, Linux, and Git
• Very good knowledge of REST APIs, webhooks, and asynchronous processing
• Sound experience with RAG, embeddings, tool or function calling, and agentic workflows
• Knowledge of workflow automation, e.g., n8n
• Knowledge of the Model Context Protocol (MCP) is an advantage
• Experience with OIDC, OAuth2, and role-based authorization concepts
• Experience with automated tests, error handling, regression tests, and ideally LLM evaluation
• Knowledge of data protection, data classification, PII protection, secret management, and controlled model access
• Demonstrable experience in pair programming, code reviews, or technical knowledge transfer
• Ability to convey complex technical contexts understandably and practically
• Very good communicative, structured, and independent way of working

Project details

Q1 2027

6 months, with option for extension

By arrangement

Predominantly remote, occasional on-site possible

If you are interested, I look forward to receiving your current project list in Word format at:

*@*.de

Best regards from Bonn,

Christopher Schmidt-Horster

• Start: 2027-01
• Duration: 6 Monate
• Remote: hybrid
• Location: Bonn, Deutschland, DE
• Languages: German