Full Stack Engineer (£60k-£80k + Equity) at Lichen AI

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network

The next step is to speak to Jack.

Job Title: Full Stack Engineer

Salary: £60k-£80k + Equity

Company Description: Lichen AI - Early-stage agentic platform for AI discovery

Job Description:
As the first full-time engineer, you will transform a working prototype into a production-grade enterprise SaaS. You'll build robust backends, design intuitive interfaces for complex AI outputs, and establish foundational engineering practices. Working directly with an expert founding team, you'll ensure the platform is secure, reliable, and ready for global enterprise customers.

Location: Cambridge, UK

Why this role is remarkable:

• Join as the first founding engineer with a significant equity stake and a clear path to technical leadership as the company scales.

• Work alongside a world-class founding team including the former Chair of the UK Government’s AI Council and Amazon Alexa's speech recognition lead.

• Build a mission-driven platform that uses agentic AI to amplify human insight rather than replacing it, solving a critical adoption gap for enterprise clients.

What you will do:

• Transition a high-potential prototype to a production-grade platform by building secure, scalable backend systems and automated deployment pipelines.

• Lead the end-to-end development of the user interface, making complex AI-generated insights legible and actionable for non-technical business users.

• Implement enterprise-grade security and compliance standards including ISO 27001 and GDPR to ensure safe handling of sensitive client data.

The ideal candidate:

• Has 3-8 years of experience shipping production web applications using modern JavaScript/TypeScript (React) and Python (FastAPI).

• Demonstrates strong proficiency in cloud infrastructure, specifically AWS, and designing robust database structures and data pipelines.

• Thrives in a small, fast-paced startup environment and possesses a genuine interest in human-centered AI that enhances domain expertise.

Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.
Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.