Senior Fullstack Engineer (AI-Native)

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Senior Fullstack Engineer (AI-Native) — Freelance via Shakers


We're hiring a Senior Fullstack Engineer to help build the enterprise backbone of an AI hiring intelligence platform that's redefining recruitment through voice-first, capability-based assessment.

You'll join a lean creative engineering team with a flat structure, high ownership, and zero bureaucracy. The product is AI-native — and so is the team.


What you'll do

  • Architect and ship high-concurrency APIs and event-driven systems (NodeJS, NestJS, GraphQL, PostgreSQL)
  • Define enterprise-grade architecture: GDPR-safe, audit trails, permissions, cloud-ready by default
  • Integrate LLMs (Gemini and others) into the product in a measurable, monitored, production-safe way
  • Build reliability foundations: monitoring, logging, retries, runbooks
  • Own features end-to-end — from vague brief to production


Must-haves

  • Strong NodeJS + NestJS + GraphQL + PostgreSQL
  • Hands-on with LLMs in production (Gemini a plus)
  • Event-driven architecture, Prisma, Terraform
  • Reliability mindset: monitoring, QA, retries


Format

  • 100% freelance via Shakers
  • Long-term engagement
  • Hybrid in London – flexible (EU timezone)


If you're AI-native in practice and want real end-to-end ownership in a high-taste studio, apply.

”, “datePosted”: “2026-05-21”, “validThrough”: “2026-08-19”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Shakers”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__438878175__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=33” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “London” } } }
Company: Shakers
Apply on Partner’s Website
Location: London
Job Description:

Senior Fullstack Engineer (AI-Native) — Freelance via Shakers

We’re hiring a Senior Fullstack Engineer to help build the enterprise backbone of an AI hiring intelligence platform that’s redefining recruitment through voice-first, capability-based assessment.

You’ll join a lean creative engineering team with a flat structure, high ownership, and zero bureaucracy. The product is AI-native — and so is the team.

What you’ll do

  • Architect and ship high-concurrency APIs and event-driven systems (NodeJS, NestJS, GraphQL, PostgreSQL)
  • Define enterprise-grade architecture: GDPR-safe, audit trails, permissions, cloud-ready by default
  • Integrate LLMs (Gemini and others) into the product in a measurable, monitored, production-safe way
  • Build reliability foundations: monitoring, logging, retries, runbooks
  • Own features end-to-end — from vague brief to production

Must-haves

  • Strong NodeJS + NestJS + GraphQL + PostgreSQL
  • Hands-on with LLMs in production (Gemini a plus)
  • Event-driven architecture, Prisma, Terraform
  • Reliability mindset: monitoring, QA, retries

Format

  • 100% freelance via Shakers
  • Long-term engagement
  • Hybrid in London – flexible (EU timezone)

If you’re AI-native in practice and want real end-to-end ownership in a high-taste studio, apply.

Posted: May 21st, 2026