AI Engineer

Light Inc; Greater London; Presencial; GBP 90 000 - 150 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Stock options

25 days annual leave

Regular socials

Resumo da oferta

Light Inc is seeking a senior AI Engineer to take customer problems from idea to production across the stack. You will build production software, apply AI tooling mindfully, and own delivery from backend to frontend.

The role emphasizes hands-on work with Kotlin, React, AWS, and Terraform in a high-stakes production environment. We value candidates who ship early and often, care about product usability, and have experience building on top of large language models.

Qualificações

• 7-10 years of experience ideally.
• Experience building in production, not demos.
• Hands-on experience with LLMs in production.

Conhecimentos

Build production software

AI-native mindset

LLM experience

Full-stack proficiency

Product-minded

Ship frequently

Kotlin

React

AWS

Terraform

Ferramentas

Kotlin

React

AWS

Terraform

Descrição da oferta de emprego

This AI Engineer role

We're looking for builders who can take a customer problem from idea to production, wherever in the stack it lives. At Light, AI writes code and the bottleneck has shifted from writing to thinking, so we want engineers who work end-to-end and ship things that matter.

We are primarily hiring at senior-level for this role.

Your qualifications:

7-10 years of experience ideally, plus...

• You build things. Not prototypes, not demos. Working software in production, doing something real for real users. This is the non-negotiable.
• You're genuinely AI-native. You've changed the way you work because of AI tooling, not just added it to your workflow. You have an instinct for where it helps, where it misleads, and how to use it without losing ownership of the outcome.
• You've built with LLMs. You have hands-on experience building products or features on top of large language models. Agents are a bonus, but working knowledge of how LLMs behave in production is a must.
• You're comfortable across the stack. You don't need to be a specialist in everything, but you can't have a lane you refuse to leave. Our stack is Kotlin and React. If you're strong in one and curious about the rest, that works. If you need someone else to handle the other side of the feature, it doesn't.
• You care about the product. You think about the person on the other end. You notice when something feels clunky, even if it technically works. You have opinions about what good software feels like and you act on them.
• You ship early and often. Small batches. Learn. Go again. You're not precious about your work. You'd rather put something real in front of a customer than spend another week perfecting it in isolation.

Bonus points:

• Experience in fintech or systems where data integrity is non-negotiable
• Familiarity with accounting concepts: debits, credits, reconciliation
• Background in high-growth startups where everything was still being figured out

Our Tech Stack:

We build on AWS, with a Kotlin backend, a React frontend, and infrastructure managed in Terraform. It's a real production system that global finance teams depend on every day.
You don't need to have used every piece of it. You do need to be comfortable in this kind of environment: real scale, real customers, real stakes.

The good stuff

In addition to being part of a great team and working in a really fun and innovative environment, we offer:

• A competitive salary + potential stock options
• 25 days of annual leave + public holidays in the country where you are based.
• Regular socials and company off-sites
• A huge opportunity for career growth as you'll help shape a market-defining product.

The famous last words

Working at Light means you're embarking on an exciting journey to reshape the future of multinational financial operations. Our cheat-code is that we've built something like this before - and are now doing it again, only better. Our goal is to make global finance effortless and empower companies to make informed decisions.

Join the rocket ship while it's taking off

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