Job Title: Full Stack Engineer

Salary: £60k-£80k + Equity

Location: Cambridge, UK

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 will ensure the platform is secure, reliable, and ready for global enterprise customers.

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.

Responsibilities

• 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.