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Full-Stack Product Engineer (AI Startup)

atarus United Kingdom
Visa Sponsorship
This Job is No Longer Active This position is no longer accepting applications
AI Summary

AI startup seeks a Full-Stack Product Engineer to build next-gen operational software. Responsibilities include owning features end-to-end, developing front-end and back-end systems, and working with AI-adjacent features. Requires 2-7 years of full-stack experience with strong front-end (TypeScript/Next.js) and back-end (Node.js) skills.

Key Highlights
Opportunity to join an early-stage, well-funded AI startup.
Own high-impact product features from ideation to launch.
Build internal and customer-facing products powered by AI.
Key Responsibilities
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
Technical Skills Required
TypeScript Next.js Node.js
Benefits & Perks
£80k–£150k base salary
Meaningful equity
Visa sponsorship available
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

Job Description


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 Role

You’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.


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