Full-Stack Engineer – AI Research Platform (Equity)

Junior AI; Greater London; On-site; GBP 90,000 - 110,000; Full time

Benefits offered by this job

Private health insurance

Third Space gym membership

Dinner provided when working late

Team lunch provided every day at the,

Job summary

JuniorJunior is hiring in London to build an AI operating system for investment research. You will join a small, high-signal team shaping product and culture while delivering features that land with demanding customers.

The role focuses on TypeScript/Next.js with PostgreSQL, building polished interfaces, and working directly with clients to inform product decisions. Relocation to London and in-person collaboration in Farringdon are encouraged.

Qualifications

• 3+ years of engineering experience; demonstrated competence matters more than pedigree.
• Strong proficiency in TypeScript, Next.js and PostgreSQL; able to build polished React/Next.js interfaces.

Responsibilities

• Ship quickly and iterate—deliver and improve features rapidly.
• Design and build new ways of working with computers.
• Work on groundbreaking projects involving LLMs and AI.
• Interact directly with clients to understand needs and feedback.
• Use client conversations to shape product decisions and roadmap.
• Help define engineering culture as the team grows.

Skills

TypeScript

Next.js

PostgreSQL

React

Job description

JuniorJunior is hiring in London to build an AI operating system for investment research. You will join a small, high-signal team shaping product and culture while delivering features that land with demanding customers.

The role focuses on TypeScript/Next.js with PostgreSQL, building polished interfaces, and working directly with clients to inform product decisions. Relocation to London and in-person collaboration in Farringdon are encouraged.