Full Stack Engineer - TS/Next.js/Node.js

Full-Stack Product Engineer London | On-site (5 days) | £80k–£150k + Equity
A well-funded, fast-growing AI startup is hiring a Full-Stack Product Engineer to help build the next generation of operational software in a large, legacy industry being transformed by automation.
This is an opportunity to join early, work directly with founders, and own high-impact product features from day one. The business has strong funding, rapid growth, and real-world product-market fit.
The RoleYou’ll join a lean, high-performing engineering team building internal and customer-facing products powered by AI.
They’re particularly keen to hire someone with strong front-end capability who can complement an existing backend-heavy team, while still being comfortable shipping across the stack.
You’ll own features end-to-end — from understanding user problems, defining solutions, building the product, and iterating quickly based on feedback.
What You’ll Be Doing

• Owning product features from idea to production launch
• Building polished front-end experiences using TypeScript / Next.js
• Developing backend services and APIs using Node.js
• Building AI-adjacent features such as:
• document processing workflows
• email automation
• communication / voice pipelines
• internal operations tooling
• Working closely with operations and commercial teams to solve real user pain points
• Shipping quickly in a highly iterative product environment
• Helping shape engineering culture and standards

What They’re Looking For

• 2–7 years experience in full-stack engineering
• Strong front-end skills with TypeScript / Next.js
• Commercial backend experience with Node.js
• Experience owning features end-to-end
• Product-minded engineer who cares about users and speed
• Comfortable working in ambiguity and startup pace
• Strong work ethic and desire to build

Nice to Have

• Experience in startups or top-tier tech businesses
• Exposure to AI products or automation systems
• Familiarity with GCP, Postgres, Terraform
• Experience in fintech / insurtech / workflow-heavy products

Package

• £80k–£150k base salary
• Meaningful equity
• Visa sponsorship available
• High ownership, high impact environment

Why This Role?This is ideal for someone who wants to move faster, own more, and build products that genuinely matter — rather than being one small cog inside a large company.
If you're strong technically, commercially minded, and want to be part of a category-defining company early, this is worth a conversation.