Founding Engineer - AI @DetectX (Hexa Labs)

Permanent contract
Paris
Salary: Not specified
A few days at home
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Hexa
Hexa

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Questions and answers about the job

The position

Job description

As a founding engineer you will take a crucial part of building the whole product and the underlying tech, hand-in-hand with Théo, the CTO. In such an early-stage, fast-paced environment, you are expected to write code for every part of the product. Mostly focused on backend and AI-related work, you will also have the opportunity to built our awesome frontend.

Your mission

Joining DetectX at this early stage means having a high impact on our technology and future team. You’ll work alongside the CTO to:

  • Design & scale our AI-driven code analysis engine (Python/Go).

  • Fine-tune ML models to reduce false positives in vulnerability detection.

  • Build robust backend systems for large-scale code analysis.

  • Contribute across the stack (some frontend work in React/Typescript).

  • Mentor future engineers as the team grows.


Preferred experience

  • 2+ years in backend engineering, with Python experience (FastAPI).

  • 3+ years in AI/ML engineering having deployed pipelines and/or models in production.

    Bonus point if you have :

  • Exposure to security world (SAST, DAST, reverse engineering).

  • Experience with React / Typescript

  • Startup-friendly: You thrive in ambiguity, move fast, and own outcomes.

  • Security mindset with strong collaboration skills. You communicate effectively with anyone and are deeply motivated by DetectX’s mission

Our tech stack

  • Backend: Python (FastAPI), Go

  • Frontend: TypeScript (React)

  • Infrastructure: AWS, Terraform, Kubernetes

  • Tooling: Bazel

What we offer

  • Competitive salary + stock options.

  • Strong technical culture and entrepreneurial spirit.

  • Lovely offices at Hexa, in Paris (75010)

  • Hybrid remote: 3 days a week in the office, the rest is up to you

  • High-end Apple hardware and ergonomic accessories.

Want to know more?

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