Frontend Engineer
FOUNDING SOFTWARE ENGINEER
Remotefulltime
Apply on the employer's siteRole description
À propos
We're Ooak Data
The promise of AI agents is still unmet in complex, real-world business environments. Our mission is to make it possible for agents to reliably accomplish concrete and useful tasks.
That's why we're building
Alexandria
, the world's largest library of real-world business workflow datasets. We're backed by
Y Combinator (S26)
.
Over the next 6 months, we'll acquire and anonymize
300+ full data ecosystems
from real-world companies to become the leader in real-world business workflow data.
This summer, we're assembling a small, senior team to move extremely fast and cement our lead in company data.
🤝 Our values
- Trust — the foundation of every relationship, internal and external. We extend it by default and value the ownership that comes with it.
- Ambition — we commit and move fast, with tenacity and efficiency.
- Collective — team first, low ego.
- Kindness — at the heart of every interaction.
We're building a solid, aligned, and motivated team.
Our traction speaks for itself: we've signed contracts with some of the
largest AI labs in the world
, alongside recent partnerships with several smaller labs, all while being 100% bootstrapped. This summer, we're joining
Y Combinator
, which is accelerating everything.
Descriptif du poste
✅ Your missions
As a
Software Engineer
and a
founding member of the tech team
, you'll play a central role in how we design, build, and scale the platform that powers our datasets and RL environments. You'll report directly to Thomas (CTO & co-founder).
- Design, build, and scale the web platform and internal tooling our team and partners use to ingest, process, and explore data.
- Build robust back-end services and APIs powering our data pipelines and RL environments.
- Craft clean, reactive front-end interfaces for data curation, annotation, and monitoring.
- Define our technical standards and take an active part in the structuring architecture decisions (tech choices, design patterns, scalability, DevOps).
- Work closely with the product and ML teams to scope and ship new features end to end.
- Mentor and grow the future members of the tech team, building a strong software engineering culture at Ooak Data.
Profil recherché
🔍 Who we're looking for
- 4+ years of experience in software engineering, ideally full-stack or back-end focused.
- Strong coding experience in TypeScript and Python, with a plus for Rust.
- Solid experience with modern web frameworks (React, SvelteKit, or equivalent) and Node.js.
- Comfortable designing and operating APIs, relational databases (PostgreSQL), and micro-services.
- Proven track record delivering projects in an agile, collaborative environment.
- Genuine desire to mentor and grow more junior profiles over time.
- Demonstrated ability to thrive in a demanding, fast-growing environment.
- Excellent analytical skills, attention to detail, and strong prioritization.
- Fluent English, mandatory (working language with our clients and the labs).
The extras that make the difference
- Experience with GCP (or equivalent), Docker, and serverless technologies.
- Experience with infrastructure as code (Terraform, CloudFormation).
- Strong interest in data engineering, anonymization, and AI/RL environments.
🎁 Why join us
- Entrepreneurial adventure, play a key role and live the early days of an ambitious company, right at the front line of the AI revolution.
- Backed by Y Combinator, join just as we accelerate.
- Founding impact, shape the company and its culture from day one.
- Offices in central Paris + 1 to 2 days WFH.
- Perks:
- Alan health insurance (mutuelle)
- 50% Navigo covered
- unlimited GPT & Claude tokens
Process de recrutement
✏️ Recruitment process
We can move very fast.
- A 30 min intro call with Grégoire (COO & co-founder)
- A 30 min call with Thomas (CTO & co-founder)
- A technical case study:
- Async preparation
- Debrief interview with Thomas
- A final fit interview with the founding team
Informations complémentaires
- Type de contrat : CDI
- Date de début : 17 août 2026
- Lieu : Paris
- Niveau d'études : Bac +5 / Master
- Expérience : > 4 ans
- Télétravail ponctuel autorisé
- Salaire : entre 55000€ et 80000€ / an
This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.