Fullstack Developer AI

On behalf of our public sector client, Affinity is looking for a Full Stack Developer with AI expertise, with a strong foundation in working with large language models (LLMs) and a keen interest in building intelligent, agent‑based systems. As part of the Innovation Team, you’ll work with a cross‑functional team to explore, prototype, and implement artificial intelligence technologies that solve complex business problems.

This is a hands‑on role focused on rapid prototyping, integration, and advancing the practical use of generative AI across business processes.

• Design and build applications using OpenAI, Azure OpenAI, and open‑source LLMs
• Develop and optimize Retrieval‑Augmented Generation (RAG) pipelines
• Explore and implement foundational patterns for multi‑agent AI systems using tools like Auto Gen, Lang Chain, or Semantic Kernel
• Integrate LLMs into enterprise workflows and digital products
• Use vector databases such as Qdrant, pgvector, and Cosmos DB
• Leverage Azure AI services and models to enhance capabilities and performance
• Collaborate with product teams and data scientists to test, refine, and deliver AI use cases
• Develop prompt strategies, memory handling, and task chaining
• Maintain clear documentation of models, architecture, and decision‑making
• Stay current with research and best practices in generative and agentic AI
• Collaborate with cross‑functional teams to transition validated concepts to production
• Participate in Agile ceremonies, code reviews, and Dev Ops practices
• Maintain technical documentation and participate in system architecture decisions
• Provide mentorship to junior developers and support knowledge sharing

• Bachelor’s degree in Computer Science or a related STEM field
• 6–9 years of software development experience, including recent work with LLMs or AI integration
• Proficiency in Python and experience with AI/ML frameworks (e.g., OpenAI SDKs, Lang Chain, Hugging Face)
• Experience in C#, .NET Core, and object‑oriented design
• Interest and understanding of agent‑based design concepts and tools (Auto Gen, Semantic Kernel, etc.)
• Familiarity with RAG, Graph
  
  RAG, embeddings, and vector databases such as Cosmos DB, pgvector, or Qdrant
• Experience deploying solutions to the cloud (Azure preferred)
• Knowledge of APIs, CI/CD pipelines, Git, and Agile software development practices
• Ability to synthesize complexity and communicate AI capabilities clearly to diverse audiences

Know someone who’s great for this, or any of our open roles? Earn up to $4,000/year for each successful referral through Affinity Earn. You can also earn up to $50,000 for helping us find new clients. Learn about our referral program at  or browse our jobs & follow us at

Affinity Group is a technology and business consulting and services company. We believe in creating long term relationships between clients and consultants that foster a mutually beneficial partnership. Affinity is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All employment is decided on the basis of qualifications, merit and business need.

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