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AI Engineering Intern

Light· Tech
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LondonInternPosted 1mo ago

About the role

AI Engineering Intern at Light, working on agents, models, and infrastructure to enable organic software that learns, heals, and adapts. Focused on training/deploying LLM/ML models, building agents, evaluations, and owning projects through delivery.

Responsibilities

  • Help agents learn from their work. Our agent reviews merged pull requests and corrections to update its repository-specific instructions. You’ll shape that process, catch misleading lessons, and test whether new instructions improve its performance.
  • Train and deploy LLM and ML models. Fine-tune SoA LLM models. Run experiments, compare results against the existing pipeline, and establish whether a model is ready for production. Leverage ML tools to enhance the ability of our Agents via e.g. K-means, t-sne, PCA, random forest trees etc. etc.
  • Build Agents. Take full end to end ownership of an agent. Agent do pre-emptive support for the self-healing pipeline; they fix; they communicate with customers; etc.
  • Build evaluations and review tools. Define what a correct answer looks like, create tests that expose failures, and help catch poor output before it reaches customers.
  • Own projects through delivery. Scope the problem, build the solution, debug regressions, and follow through until the customer can rely on what you’ve shipped.

Qualifications

  • Strong programming ability.
  • Something you’ve built beyond coursework or tutorials: a model, agent, tool, or application that does useful work.
  • Hands-on experience with AI tooling, such as LLM APIs, agent frameworks, model fine-tuning, or automated workflows.
  • A habit of investigating why a system failed and testing whether your fix addresses the cause.
  • Clear thinking and the ability to explain your decisions, including what you tried and why it didn’t work.

Skills

Required:ProgrammingHands-on AI toolingExperimentation and evaluationProblem solving and debuggingCommunication and reasoning

Benefits

  • Internship compensation above the standard market rate.
  • A role based in our London office, working alongside the product and engineering team.
  • Ownership from your first day, with a path to shipping work into production.
Last updated Sep 16, 2026. Interested? Apply on the company site.

About Light

Light Raises $30M Series A →

Light is a platform for General Ledger, AR & AP solutions designed to simplify global finance operations.

AutomationBankCurrencyFinanceGeneral LedgerImmutable record keepingLedgerMulti-entity reports
Company profileWebsite

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