Senior Full-Stack AI Developer (Python)
CIGen
•Remote
About The Position
We are looking for a Senior Full-Stack AI Developer with a strong Python backend focus to join our team. This role involves working on projects with a modern tech stack, offering a flexible schedule, and being part of a professional, friendly, and transparent environment. CIGen is an ISO 27001 certified company and a registered Microsoft Partner. We prioritize building long-term, trusted relationships and delivering high-quality services. This position is remote-friendly.
Requirements
- Minimum 5+ years of solid commercial experience in software development, with a strong Python backend focus
- Advanced Python skills - production experience with FastAPI (or equivalent), Pydantic, and async patterns
- Hands-on production experience building and deploying LLM-powered applications (Azure OpenAI, Microsoft Foundry, or equivalent)
- Solid experience designing and operating RAG pipelines: chunking, embedding, hybrid search (vector + keyword), retrieval evaluation
- Practical experience with async task processing (Celery + Redis or equivalent) in production environments
- Strong experience with React and TypeScript for building dynamic, responsive web applications
- Strong experience with PostgreSQL - schema design, query optimisation, migrations; able to diagnose N+1 problems, design composite and GIN/trigram indexes
- Systematic approach to prompt engineering: few-shot prompting, chain-of-thought, structured output, evaluation loops
- Strong testing discipline: regression tests accompany every fix PR, semantic test coverage using realistic domain inputs, familiarity with static analysis and architecture-level test enforcement
- Solid experience with Docker, CI/CD (GitHub Actions or equivalent), and Git workflows
- Demonstrated ability to perform business and requirements analysis - translating functional needs into technical designs without requiring micromanagement
- Active daily use of Claude Code or equivalent AI coding assistants as a primary development tool
- Strong soft skills: self-directed, communicative, pragmatic - comfortable with broad ownership in a small team
- Fluent English (spoken and written - remote-first working environment)
Nice To Haves
- Working knowledge of Azure deployment constraints: Container Apps lifecycle, Entra ID Managed Identity patterns, and Key Vault secrets
- Familiarity with Clean Architecture and Domain-Driven Design in a Python context
- Experience building or operating multi-tenant SaaS systems
- Experience with Microsoft Fabric or Azure Databricks for data pipeline integration
- Microsoft AI or Azure certifications (AI-102, DP-100, or equivalent)
Responsibilities
- Analyse business and product requirements; define and own technical solutions end-to-end - from spec to production
- Build full-stack features: Python backend APIs, LLM integration and prompt design, and React/TypeScript frontend
- Design, build, and continuously improve RAG pipelines and multi-LLM orchestration workflows
- Implement and maintain async processing pipelines for document ingestion and background task management
- Write clean, well-tested, well-documented code; participate actively in code reviews and architecture discussions
- Work in a small, remote-first agile team; use Claude Code as your primary development tool and champion AI-assisted engineering practices
Benefits
- Flexible working hours
- PTO and sick leave
- Support for learning and professional development expenses
- Opportunities to enhance technical and interpersonal skills
- Company-organized workshops
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
