Full Stack Engineer — AI Research Platform

Mentor Talent Acquisition; Faringdon; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Private health insurance

Dinner provided when working late

Team lunch provided every day at the  

Frequent international off-sites

Job summary

Mentor Talent Acquisition is hiring a Senior Full Stack Engineer to own features end to end across frontend, backend and data layers. The role involves shipping weekly, building AI-powered workflows and engaging with clients to shape product decisions.

You’ll contribute to a high-growth AI company, join a 20-person engineering team and relocate to London/Farringdon to work in person. You will design scalable systems, work on LLM-driven projects, and help establish a strong engineering culture as

Qualifications

• 5+ years of engineering experience with demonstrated competence.
• Strong expertise in TypeScript, Next.js and PostgreSQL.
• Ability to build polished React/Next.js interfaces and solve hard TS problems quickly.
• Solid foundations in data structures and system design.
• High-agency, product-minded, with end-to-end ownership and client-facing mindset.
• Willingness to relocate to London and work in person in Farringdon.
• Bonus: AI-powered product experience.

Responsibilities

• Own features end to end across frontend, backend and data layer.
• Ship on a weekly cadence, not quarterly.
• Design and build entirely new ways of working with computers.
• Work on groundbreaking projects involving LLMs.
• Speak directly with clients to inform product decisions.
• Help shape engineering culture as the team doubles.
• Build AI-native systems and knowledge graphs.
• Develop a mobile app from scratch in three weeks.

Skills

TypeScript

Next.js

PostgreSQL

React

System design

Data structures

Client-facing

Education

Bachelor's degree in a relevant field

Job description

Mentor Talent Acquisition is hiring a Senior Full Stack Engineer to own features end to end across frontend, backend and data layers. The role involves shipping weekly, building AI-powered workflows and engaging with clients to shape product decisions.

You’ll contribute to a high-growth AI company, join a 20-person engineering team and relocate to London/Farringdon to work in person. You will design scalable systems, work on LLM-driven projects, and help establish a strong engineering culture as