Job offer

Fullstack engineer
(Python + React)

First AI-Native ERP designed for the real world.

Backed by top-tier VCs with a €3M seed round.

Fast-moving AI startup with instant impact.

Join a tight-knit, world-class founding team.

Competitive salary + equity ownership.

Remote-first, EU-based

What you'll build

Responsible for building and maintaining product features across their full lifecycle: from initial technical design to implementation, deployment and monitoring. You’ll work across the frontend and backend, and collaborate closely with founders to ship customer-facing features with real impact.

  • Product features used daily by professionals. Built in React, TypeScript and Python

  • A clean frontend UX: responsive, accessible, fast, and reactive to real-time data

  • Backend APIs that are clean, consistent and performant using Django (django-ninja) and Pydantic

  • A database model optimized for complex workflows, high-frequency queries and AI interfacing

  • Observability of the features you own.

  • Foundations for AI-native interfaces (RAG, agents, orchestration logic) woven into the product layer, not bolted on

Who we want

We’re assembling an exceptional founding team and are looking for a Founding Fullstack Engineer with startup experience. If you want to build and ship end-to-end, own massive impact, and shape a world-class company from day one, let’s talk.

You need
  • Expertise in python web backend development (Django optional)

  • Strong frontend engineering skills with React and TypeScript

  • Deep knowledge of API design, data modeling and query optimization

  • Understanding of monitoring, observability and debugging in production

  • Familiarity with distributed systems and asynchronous data flows

  • Experience building responsive, accessible UI

  • Git proficiency and comfort in modern CI/CD pipelines

Don’t meet every single requirement? If you’re excited about our mission and confident you can deliver outcomes, we encourage you to apply.

Bonus point : We don’t expect you to be a unicorn but deeper experience in some of these areas would be highly appreciated:

  • Experience with React Query, Tanstack Router.

  • Hands-on work with Grafana and Prometheus

  • Exposure to AI features (RAG, agent orchestration, vector search)

How we work
  • Total ownership: End-to-end impact.

  • Zero bureaucracy: Small, agile team driving rapid execution.

  • Craft with velocity: We move fast by shipping small and never compromising on excellence.

  • Radical prioritization: One goal at a time, done right.

  • No egos: Feedback with recommendations can come from anyone, across any team.

What you’ll get
  • Competitive salary + meaningful equity

  • Exceptional peers and a cutting-edge AI stack

  • Ideal equipment and setup (top-tier gear, remote-friendly)

  • Regular company offsite (2–4 times per year) in great locations

  • Location: Fully remote, France.

Process

We value efficiency and clarity. The entire process takes no more than 2 weeks:

1

40-minute intro call with Eric (CEO).

2

90-minute technical interview with Eugène (CTO).

3

30-minute cultural-fit interview with Florian (CRO).

4

2-day paid assessment.

Offer

If it’s a match, we move fast.

Interested?

Send us an email at founders@pistonhq.app and tell us why you want to join.