Full-time · On-site

AI Engineer, Senior Associate

PC
Hiring company

Partners Capital

London, England, United Kingdom · Posted 13 April 2026

The role

Overview

As a Senior Associate AI Engineer at Partners Capital, you will bridge the gap between high-level research and practical software engineering. This role is designed for a builder who can take full ownership of the AI lifecycle, from cleaning messy unstructured data to deploying sophisticated Retrieval-Augmented Generation (RAG) pipelines and production-ready APIs. You will be tasked with moving beyond simple 'wrapper' development to create intelligent, agentic systems that can coordinate complex tasks like research, drafting, and automated review. Day-to-day, you will be refining chunking strategies, managing vector databases, and implementing rigorous evaluation frameworks to ensure that AI outputs are not just impressive, but safe, accurate, and reliable for a high-stakes financial environment. You will join an innovative team that values a skeptical, engineering-first approach to artificial intelligence. Partners Capital provides a unique environment where you can apply cutting-edge LLM tooling—such as Cursor, Windsurf, and various agentic frameworks—to real-world investment and data challenges. The culture emphasizes 'human-in-the-loop' correctness, meaning you will be expected to use your coding expertise to audit AI-generated code and maintain high standards for security and maintainability. This is an opportunity to work at the intersection of finance and frontier technology, helping a leading global investment office redefine its digital capabilities. This position offers significant growth potential as the firm continues to expand its AI footprint. You will have the autonomy to experiment with open-source models like Llama and Mistral, fine-tuning them for specific use cases and managing the associated training and inference pipelines. By owning the evaluation metrics and production monitoring, you will become a key architect of the firm’s long-term AI strategy. For an engineer who thrives on solving the 'hallucination' problem and building robust, typed backend services, this role provides the platform to lead high-impact projects that directly influence the firm's operational efficiency and investment intelligence.

The hiring side

About Partners Capital

Partners Capital is a mid-sized employer working in investment management, based in London, England, United Kingdom.

Industry

Investment Management

Size

Medium

Location

London, England, United Kingdom

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What they need

Requirements & Skills

Key Responsibilities

  • Design and maintain RAG pipelines using embeddings and vector/graph databases
  • Develop multi-agent workflows for complex task coordination
  • Build and deploy typed backend APIs and ETL jobs for data enrichment
  • Implement prompt-injection defenses and ensure AI output security
  • Create and manage evaluation harnesses to monitor model accuracy and faithfulness

Essential

  • Proven experience building and maintaining RAG pipelines over unstructured data
  • Proficiency in Python and data manipulation libraries like pandas and BeautifulSoup
  • Experience with vector databases (e.g., Pinecone, Weaviate, Qdrant) and Graph Databases (e.g., Neo4J, PuppyGraph)
  • Ability to integrate LLMs via SDKs/HTTP while managing rate limits and context windows
  • Experience designing multi-agent or agentic workflows and conversation state management
  • Strong background in backend integration using FastAPI, Flask, or Node/TypeScript
  • Expertise in prompt engineering, including few-shot and chain-of-thought techniques
  • Commitment to rigorous AI evaluation (evals) and regression testing

Preferred

  • Experience fine-tuning open-source models like Llama or Mistral
  • Knowledge of AI data privacy and governance standards such as GDPR and SOC2
  • Experience with AI-assisted development tools like Cursor or Windsurf
  • Familiarity with dataset auditing and fairness evaluation

Key Skills

PythonRAG (Retrieval-Augmented Generation)Vector DatabasesGraph DatabasesLLM IntegrationAgentic FrameworksFastAPI/FlaskPrompt EngineeringData EngineeringSQLTypeScript

Networking

People to Know

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Perks

Benefits & perks

  • Opportunity to work with frontier AI technologies
  • High-impact role within a leading global investment office
  • Collaborative environment with a focus on technical excellence
  • Exposure to complex data challenges in the financial sector

Next step

Apply now

Found via partners-cap.com

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