Quantitative Trading & Research - AI/ML Quantitative Researcher - Associate or Vice President

JPMorgan Chase & Co.; Greater London; Sur place; GBP 120 000 - 180 000; Plein temps

Résumé du poste

JPMorgan Chase & Co. in London seeks an AI/ML Quantitative Researcher to lead research on Transformer-based and time-series foundation models over large-scale market datasets, developing methods to make them robust, transferable, and measurable across instruments and regimes. The role requires hands-on experience pre-training large foundation models from scratch.

This position is designed for deep research with real constraints—scaling laws, data efficiency, and robustness are core to the agenda.

Qualifications

• A advanced degree in ML, CS, statistics or related quantitative field.
• Proven experience pre-training a large model from scratch.
• Experience building large-scale data pipelines and distributed training systems.
• Deep knowledge of optimization, parallelism, mixed precision, checkpoints, and benchmarking.
• Evidence of research quality through successful large-model training or deployments.

Responsabilités

• Pre-train Transformer-based and time-series foundation models from scratch using large-scale market datasets.
• Develop data representations, tokenization, self-supervised objectives, and distributed training recipes.
• Fine-tune and post-train models for alpha generation, pricing, market making, execution, and risk tasks.
• Study scaling laws, transfer across instruments, regime robustness, data efficiency, and trade-offs of model quality vs. latency.
• Design evaluation protocols linking pre-training metrics to economically meaningful outcomes.
• Build reusable training, checkpointing, evaluation, and model-serving components with ML infrastructure engineers.

Connaissances

Pre-training large models from scratch

PyTorch / JAX / distributed training

Large-model training & evaluation

Formation

Master's or PhD in ML / CS / statistics

Outils

PyTorch

JAX

Description du poste

Join a pioneering team at the forefront ofsystematic trading innovation. The Quantitative Trading & Research (QTR) group is responsible for systematic trading across FX, Rates, Commodities, Credit, Equity and a wide range of markets. Within QTR, AI Market Lab brings together quantitative research, modern artificial intelligence, market microstructure, and high-performance engineering to develop the next generation of electronic trading capabilities. Our work spans signal research, pricing, market making, execution, portfolio construction, risk management, and the production systems that support them.

Job Summary

As a Quantitative Trading & Research - AI/ML Quantitative Researcher, you will lead research on building Transformer-based and time-series foundation models over large-scale market datasets, and develop the methods needed to make them robust, transferable, and measurable across instruments and regimes. We are seeking an AI/ML quantitative researcher with hands-on experience pre-training large foundation models from scratch.

This role is designed for someone who wants to do deep research with real constraints - where questions like scaling laws, data efficiency, and robustness are not academic footnotes, but the core of the agenda.

Job Responsibilities

• Pre-train Transformer-based and time-series foundation models from scratch using large-scale market, order-book, transaction, and cross-asset datasets.
• Develop data representations, tokenization schemes, self-supervised objectives, model architectures, and distributed training recipes for financial time series.
• Fine-tune and post-train foundation models for alpha generation, pricing, market making, execution, and risk-management tasks.
• Study scaling laws, transfer across instruments and asset classes, regime robustness, data efficiency, and the trade-offs among model quality, inference cost, and latency.
• Design evaluation protocols that connect pre-training metrics to economically meaningful outcomes, including out-of-sample prediction, simulated trading, transaction costs, capacity, and live markouts.
• Build reusable training, checkpointing, evaluation, and model-serving components with ML infrastructure engineers.

Required Qualifications, Capabilities, and Skills

• Advanced degree (Master's, PhD, or equivalent experience) in machine learning, computer science, statistics, mathematics, operations research, engineering, or a related quantitative field.
• Demonstrated experience pre-training a large model from scratch (Transformer/LLM/multimodal/time-series). Experience limited to API usage or prompt engineering is not sufficient.
• Experience building large-scale data pipelines and distributed training systems using PyTorch, JAX, or equivalent frameworks.
• Deep knowledge of large-model training and evaluation: optimization, parallelism, mixed precision, checkpointing, experiment design, ablations, and benchmarking.
• Evidence of research/technical quality through successful large-model training, high-impact research, open-source systems, or production deployment.

Preferred Qualifications, Capabilities, and Skills

• Experience with fine-tuning/post-training for forecasting, ranking, decision-making, or structured prediction.
• Prior work on time-series foundation models, limit-order-book modeling, multimodal market data, or cross-asset transfer learning.
• Experience in quantitative trading, HFT, electronic market making, or systematic investing - especially with models deployed to live trading.
• Publications at leading ML venues and/or substantial contributions to large-scale model-training systems.