Senior AI Software Engineer

Company: Harrington Starr
Apply for the Senior AI Software Engineer
Location: Greater London
Job Description:

Are you an experienced AI engineer looking to make a real impact? Our client, a leading global asset management firm, is seeking a talented Senior AI Engineer to join their team.

In this hands-on role, you will be responsible for designing, building, and maintaining cutting-edge AI pipelines and agentic systems to power the firm’s investment strategies and client services. This is not just prototype work – we’re looking for someone with a proven track record of shipping production-grade AI solutions.

Key Responsibilities:

  • Develop Retrieval-Augmented Generation (RAG) pipelines over unstructured data using embeddings, vector databases, and graph databases
  • Implement robust multi-agent workflows where specialized AI agents coordinate to solve complex tasks
  • Ensure the security, governance, and ethical use of AI systems through prompt injection defenses, output filtering, and data privacy controls
  • Fine-tune and adapt open-source AI models to meet the firm’s unique requirements
  • Build high-performance backend services and APIs to expose AI capabilities to internal and external users

Qualifications:

  • 3+ years of professional software engineering experience, including 1-2 years building production AI/ML systems
  • Expertise in Python, data engineering, and modern AI tooling (e.g. LangChain, LlamaIndex)
  • Demonstrated experience designing and deploying end-to-end RAG pipelines in production environments
  • Strong understanding of AI concepts like embeddings, transformer models, and prompt engineering
  • Ability to work autonomously, identify opportunities, and drive initiatives to completion
  • Passion for cutting-edge AI and a desire to push the boundaries of what’s possible

If you’re an adaptable, entrepreneurial AI engineer who thrives on complex challenges, we’d love to hear from you. Apply now to join this dynamic, innovative team.

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Posted: March 24th, 2026