Fullstack Developer Intern (Next.js, Rust, Python, Tauri) – Healthtech Deeptech Startup

Descriptif du poste

Location: Paris (Station F) – Hybrid with 1 offsite week/month

Contract: Gap year or end-of-studies internship – 6 months (Feel free to apply for a shorter internship too!)

Salary: €1,300 – €1,800 gross/month

About RainPath

RainPath is reinventing how we diagnose human tissue.

Today, pathology labs still rely on complex chemical staining and manual workflows to detect disease. We build 100% software-based tools that replicate the results of immunohistochemistry (IHC) in seconds — no reagents, no delays, no lab work.

Our mission: simplify, accelerate, and standardize diagnostic workflows using AI, advanced imaging, and deep medical expertise.

We combine two major innovations:

·       A virtual staining and biomarker detection module, based entirely on image data

·       A workflow digitization module, assisting pathologists in generating structured reports, automated pre-screening, and ensuring traceability from slide to diagnosis

With RainPath, we enable:

·       Instant results instead of multi-day delays

·       Costs divided by 100

·       A fully digital, scalable, and standardized diagnostic pipeline

This is a paradigm shift in pathology — and RainPath is leading it.

The Role – Fullstack Developer Intern

You’ll join our core tech team, working closely with the CTO and lead engineers. You'll help build powerful, intuitive software for pathologists — from UIs to backend logic to native desktop applications.

You’ll be trusted from day one, learn fast, and contribute to a product with real clinical and societal impact.

The internship includes 1 offsite coliving week per month, focused on deep work, team bonding, and alignment. A unique rhythm to go fast, together.

What You’ll Work On

·       Build web interfaces using React + Next.js

·       Develop backend logic in Rust, Python, and Node.js

·       Ship and maintain desktop apps using Tauri

·       Improve CI/CD, tooling, and developer experience

·       Collaborate with AI and product teams to craft seamless UX

Tech Stack

·       Frontend: React, Next.js, Tailwind CSS

·       Backend: Rust, Python, Node.js

·       Desktop: Tauri

·       Cloud: AWS (Lambda, S3, API Gateway)

·       Tools: Git, GitHub, Docker, GitHub Actions

What We Offer

·       High ownership from day one

·       Close mentorship from the founding team

·       A clear rhythm with 1 offsite coliving week/month

·       A fast-paced, impact-driven environment

·       The opportunity to shape the future of medical diagnostics

Profil recherché

What We’re Looking For

·       Final-year student in engineering or computer science

·       Comfortable working fullstack — or eager to become

·       Strong skills in Python and JavaScript/TypeScript

·       Interest or experience in Rust

·       Curious, pragmatic, and detail-oriented

·       Passionate about impactful tech

Bonus points if you:

·       Have worked with Tauri, Electron, or Rust

·       Enjoy clean architecture and thoughtful UX

·       Have experience in medtech, deeptech, or regulated industries

Process de recrutement

Hiring Process

·       30-min intro chat with CEO

·       30-min tiny project presentation with CTO

·       30-min in-person peer-coding with CTO

·       → Quick feedback & offer within days

Diversity & Inclusion

At RainPath, we value kindness, honesty, and inclusivity. We strongly believe that diverse teams build better products — and we’re committed to creating a safe and empowering environment for everyone, regardless of background, gender, ethnicity, or orientation.

How to Apply

Send your CV to mel@rainpath.ai

No need for a formal letter — just a few lines on why this role excites you.

Informations complémentaires

  • Type de contrat : Stage (3 à 18 mois)
  • Lieu : Paris
  • Télétravail partiel possible
  • Salaire : entre 1300€ et 1800€ / mois