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AI Engineer

Job in Greater London, London, Greater London, EC1A, England, UK
Listing for: Millennium
Full Time position
Listed on 2026-01-13
Job specializations:
  • IT/Tech
    AI Engineer, Machine Learning/ ML Engineer, Data Scientist
Job Description & How to Apply Below
Location: Greater London

Join to apply for the AI Engineer role at Millennium
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We are working on different areas where AI/ML can help portfolio managers, researchers, risk managers, and other functions. Some examples are: enabling traders/researchers to consume vast amounts of research and literature by organizing, summarizing information, sometimes in near real-time; doing quantitative modeling to price instruments, modeling demand and supply of commodities and other fundamentals; modeling weather, optimizing algorithmic execution of trades;

modeling and building simulations of risk.

The AI/ML work spans usage of LLMs, deep learning, reinforcement learning and other ML techniques. The work also requires building AI/ML infrastructure for data wrangling, building feature stores, building frameworks for deployments, measurements, re‑training, etc.

We are seeking an AI/ML SWE who has experience with LLMs, deep learning, reinforcement learning as well as an interest and ability to keep up with advancements in AI/ML. The candidate should also be strong in software engineering and be comfortable with AI/ML experimentation and productionization.

Key Responsibilities
  • Engage and collaborate with business stakeholders, quants, and other market researchers to deeply understand the problem space.
  • Experiment, iterate, product ionize AI/ML solutions.
  • Build supporting data and AI/ML infrastructure and tools.
Required Skills And Qualifications
  • Strong knowledge of the latest advancements in AI and machine learning.
  • Strong fundamentals in computer science.
  • Proficiency in Python and at least 1 other language such as Java, C++, C#, etc.
  • Experience with cloud computing platforms (e.g., AWS, Azure, Google Cloud).
  • Experience with using LLMs and with techniques such as prompt engineering, PEFT, fine‑tuning, etc.
  • Ability to build and evaluate AI models and tools using quantifiable metrics.
  • Excellent problem‑solving skills and ability to work independently as well as part of a team.
  • Strong communication skills to effectively collaborate with developers and other stakeholders.
  • Adaptable and willing to work in a start‑up‑like environment within a major institution.
Preferred Qualifications
  • Advanced degree in Computer Science, AI, Machine Learning, or a related field.
  • Experience in developing AI solutions for financial institutions.
  • Knowledge of additional programming languages and frameworks.
Seniority level
  • Entry level
Employment type
  • Full‑time
Job function
  • Engineering and Information Technology
Industries
  • Investment Management

Location:

London, England, United Kingdom.

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