Senior Full Stack Engineer (Agentic AI) B2B contract

Type: B2B contract
Working pattern: Flexible home office or hybrid
Location: Within 80 km of Cluj Iasi or Bucharest

Most engineering roles start once the hard decisions are made. This one starts before them.

Youll be the first engineer on a new client engagement before theres a team or plan working out whats possible and building the proof a delivery team can scale from.

Whats in it for you

Youll decide how the work gets done with AI tools that arent locked down. On a recent 19-week AI platform build 80.5% of authored commits carried verifiable AI co-authorship.

Youll work alongside our agentic team and help shape how we do agentic engineering. You dont need to arrive an expert.

Who youll work for

hedgehog lab is a UK digital product consultancy and certified B Corp with 20 years behind us and teams in the UK Bulgaria and Romania. We help public and private sector clients in healthcare commerce media and education.

Project teams are 5 to 15 people: agentic engineers software engineers QA and designers.

What youll do

• Turning client goals into architecture and technology choices recorded in ADRs

• Building proofs of concept that validate the design

• Setting up tooling workflows and guardrails for AI coding agents

• Shaping testing and code review

• Pairing with engineers and leaving patterns client teams can own

Essential experience

Youll be in front of clients from week one. If youd rather keep your head down and code this isnt for you.

• Commercial TypeScript or Python experience across the full stack (NestJS or FastAPI for example)

• Hands-on use of AI agents in a real workflow at work or in your own projects. A GitHub repo counts.

• Youve taken a messy poorly defined problem and shipped something that works

• Comfortable explaining your thinking to non-technical people

• Clear writing especially ADRs and docs

• Pragmatic architecture sized to POC pilot or production

Desirable experience

• Consulting professional services or forward deployed experience

• Experience presenting to clients or contributing to pitches

How to apply

There are two stages: a call with our Talent Acquisition Lead then a 90-minute interview with two engineers. Theres no technical test.

Apply below or get in touch to talk it through first.