Skills

Decision-making Research Training PyTorch Deep Learning Databases Robotics NLP

Job Specifications

AI Researcher - HFT London

Our client is a prestigious quantitative trading firm where cutting-edge research meets high-performance engineering to build intelligent systems that shape global markets. They are seeking an AI Researcher to join a cutting-edge team in London, working at the intersection of foundational AI models and trading technology. You will redefine electronic trading by developing high-performance, AI-powered solutions that enable smarter, faster decision-making in dynamic markets.

You'll collaborate with data scientists, engineers, and quantitative researchers to build and deploy large-scale models that learn from vast amounts of market and alternative data. This is a greenfield opportunity to shape the future of AI in trading, with full ownership from research to production.

Responsibilities

Design, train, and evaluate large-scale AI models using market and alternative data.
Develop novel architectures and training strategies for time-series, NLP, and multimodal datasets.
Implement retrieval-augmented generation (RAG) workflows and integrate vector search systems.
Translate research prototypes into production-ready models with robust performance and reliability.
Collaborate with data engineers and trading teams to optimise data pipelines and align model outputs with business objectives.

Requirements

2+ years of experience in deep learning research across domains such as NLP, time-series, robotics, or multimodal learning.
Experience with LLMs, RAG frameworks, and vector databases (e.g., FAISS, Pinecone) is highly valued.
Strong engineering skills, especially in PyTorch/JAX, GPU optimisation, and scalable model deployment.
Familiarity with MLOps, model versioning tools (e.g., MLflow, DVC), and production-grade AI systems.
Ability to translate research into robust, high-performance applications.

About the Company

From Investment Banking, Risk Management, Quantitative Trading, and Insurance, to Investment Management, Sales & Trading, Technology, and Wealth Management, Selby Jennings supports the world's largest financial institutions to revolutionary fintech start-ups with all their hiring needs as a leading Financial Sciences and Services talent partner. If you would like to talk to us about your current talent needs, please request a call back here and one of our specialist consultants will call you back to discuss your hiring nee... Know more