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Limbic

AI/ML Engineer

Limbic

AI/ML Engineer developing an AI Therapist for personalized mental health care at Limbic. Working at the intersection of computational psychiatry, clinical science, and software engineering.

Posted 6/24/2026full-timeLondon • 🇬🇧 United KingdomJuniorMid-LevelWebsite

Tech Stack

Tools & technologies
JavaScriptNoSQLPythonSQLTypeScript

About the role

Key responsibilities & impact
  • Drive effective session orchestration and lead the implementation of our Evidence-Based Intervention Library.
  • Develop AI features tailored for product retention and engagement.
  • Implement features involving expectation setting, gamification, and reinforcement learning for the personalization of care.
  • Optimize our recovery data collection processes, focusing on the methods, timing, and predictive modelling of PHQ-9s.
  • Provide occasional analysis and modelling support for additional clinical research projects.

Requirements

What you’ll need
  • You must meet one of the following educational and experience backgrounds:
  • A PhD in Computational Psychiatry or a related field, coupled with demonstrated industry experience in Data Science, Product, or ML engineering.
  • OR A BSc/MSc in a Computational Psychiatry related field (research focus) plus 2 years of experience in ML engineering or Data Science within an Engineering/Product Development environment.
  • Proficiency in either Python or Typescript/Javascript.
  • An expert approach to hypothesis-driven work, with a track record of balancing product development with scientific rigour.
  • Experience in Eval-driven-development.
  • Experience using Machine Learning in a production environment or via high-impact scientific publications (e.g., predictive modelling, reinforcement learning).
  • Experience modelling text/language data, including building LLM classifiers and using vector-based methods.
  • Experience modelling longitudinal data and working with databases (SQL or NoSQL).
  • A strong understanding of evidence-based mental health care (such as Cognitive Behavioural Therapy) and a deep interest in the causal mechanisms that drive therapeutic benefit.
  • Proficiency with version control systems, preferably Git.
  • Ideal but not required: Experience building an LLM agent harness.
  • The ability to work from our London (Spitalfields) office on Tuesdays and Thursdays, with the flexibility to work remotely or from the office on other days of the week.
  • Please note: Limbic cannot provide visa sponsorship.

Benefits

Comp & perks
  • Competitive salary and equity share options.
  • An amazing office in central London (Spitalfields) for our collaborative team days on Tuesdays and Thursdays, paired with a flexible/hybrid working model on Mondays, Wednesdays, and Fridays.
  • 25 days PTO plus bank holidays.
  • Company pension scheme (UK).
  • Enhanced parental leave packages (UK).
  • Support with purchasing work-related books and materials.
  • Quarterly Life Days: Enjoy 4 paid days off per year (one each quarter) to use whenever you choose to relax, recharge, or take care of personal matters.
  • Mental Health Support: Access to dedicated mental health support services.

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Hard Skills & Tools
PythonTypescriptJavascriptMachine LearningPredictive ModellingReinforcement LearningEval-driven-developmentText/Languages Data ModellingLongitudinal Data ModellingDatabase Management
Soft Skills
Hypothesis-driven workProduct DevelopmentScientific Rigor
Certifications
PhD in Computational PsychiatryBSc in Computational PsychiatryMSc in Computational Psychiatry