Développeur CONFIRME Big Data Hadoop/PySpark/Python - 3 à 6 ans

HugoL (CEO): Graduated from Polytechnique, 6+ years in construction as a Project Manager and business owner, 2 years at BCG. I’ve lived the problems we’re solving, and I’m determined to simplify the daily lives of construction professionals.

VictorB (CTPO): Graduated from Polytechnique, 7+ years creating digital products across companies of all sizes and sectors.

Our stack : React (Vite + TypeScript) and Fastify (TypeScript)

Elvire as Founder associate who takes care of sales, ops and strategy

We plan to be around ~10 people in the tech team by the end of the year.

What you’ll do

Build products with tangible real-world impact, in a very early-stage startup, which means taking real ownership on product decisions.

Product Design: Translate business workflows into technical solutions and prioritize pragmatically to quickly ship value to our users.

Architecture Design: Evolve existing services effectively while maintaining a sharp focus on performance and maintainability.

Ensure robust database design and evolution.

Implement smooth UX flows while maintaining our design system’s consistency.

End-to-End Development: Own features from design to deployment and post-deployment monitoring.

Why You’ll Love Working at Grafit

Founded by industry veterans: Work directly with people who’ve spent years on-site, living the problems we are solving.

A huge, real-world market: Change the life of 15 millions workers.

Join at the start: enjoy real ownership from day one and room to grow

Very competitive compensation

Salary : between 60 000 € and 80 000 €

BSPCE : We are at the very beginning of our journey and offer generous equity packages tailored to your experience and impact

We have our own office in Paris 2th District.

We’re an office-first team. While we offer flexibility, our mindset is all about being present in our Paris hub to move fast and grow as one

Health insurance with Alan, offering excellent coverage.

Meal vouchers with Swile (€12 per day)

We would love to work with you if

You take ownership, move fast responsibly, and are comfortable making decisions in an early-stage environment

You are product-minded and focused on delivering real user value, taking a feature from idea to production

You have strong full-stack experience and care deeply about code quality and maintainability

You’re a builder at heart who values momentum, pragmatism, and getting things done: Done is better than perfect

Bonus: experience with our stack (React, TypeScript, Fastify, tRPC, Relational Databases)