TL;DR
nao Labs, a Y Combinator Spring 2025 startup based in Paris, is hiring a founding software engineer to help build an open-source analytics agent and expand its AI IDE product. The role is full‑stack, largely on-site in Paris 11, offers a salary range of €45K–€80K plus 1–3% equity, and requires experience shipping products and working with agentic systems.
What happened
nao Labs, an early-stage company that joined Y Combinator’s Spring 2025 batch and is based in Paris 11, posted a role for a founding software engineer to help build its next product: an open-source analytics agent. The startup, founded in 2024 by two data/AI veterans, already offers an AI IDE aimed at data teams and reports usage by more than 100 data teams. The new hire will be expected to work across frontend, backend and AI features — designing agentic workflows for data tasks and chat-style analytics UIs — and to contribute to product and roadmap decisions. The position lists a compensation band of €45,000–€80,000, 1–3% equity, a flexible start date, and says the role is mainly on-site in Paris with remote options. The stack called out includes React and TypeScript on the front end, Node.js and Python on the back end, and integrations with Vercel, OpenAI and Anthropic for agentic functionality.
Why it matters
- Open-source analytics agent work could shape tooling for data teams that prefer transparent, extensible AI workflows.
- Hiring a founding engineer signals nao Labs is moving from prototype to productization and scaling its engineering capability.
- The role highlights demand for engineers who combine full‑stack skills with experience building agentic AI systems and UX-focused product instincts.
- A Paris‑based YC startup further underscores European activity in early‑stage AI tooling and data infrastructure.
Key facts
- Role: Founding Software Engineer (full‑time, engineering, full stack).
- Compensation: €45K–€80K salary band plus 1.00%–3.00% equity.
- Location: Mainly on-site in Paris 11 (remote available).
- Company stage: Early-stage, founded 2024; YC Spring 2025 (X25) batch; team size listed as 2 founders and a working group of about 4 people.
- Existing product: an AI IDE for data teams, reportedly used by 100+ data teams.
- New product: rolling out an open-source analytics agent.
- Founders: Claire Gouze (former BCG Gamma data scientist; ex-head of data at sunday) and Christophe Blefari (former staff data engineer at FreeNow; freelance work for Blablacar and Qonto; author of blef.fr).
- Tech stack noted: Frontend — React, TypeScript; Backend — Node.js, Python; agentic system components — Vercel, OpenAI, Anthropic.
- Experience required: 3+ years, experience shipping end-to-end products, hands-on with agentic systems, strong product and UX instincts.
What to watch next
- Rollout and adoption of the open-source analytics agent and how it integrates with the existing AI IDE.
- not confirmed in the source
- not confirmed in the source
Quick glossary
- AI agent: A software component that performs tasks or makes decisions autonomously or semi-autonomously, often using machine learning models and scripted workflows.
- AI IDE: An integrated development environment tailored to workflows that combine code and AI tools, designed to improve productivity for data practitioners.
- Agentic system: A system architecture that enables software agents to act, plan, and interact with environments or users to accomplish goals.
- Y Combinator (YC): A startup accelerator that provides seed funding, mentorship, and networking to early-stage companies through cohort-based programs.
Reader FAQ
What is the exact job location?
Mainly on-site in Paris 11, with remote work available as noted in the posting.
What compensation and equity are offered?
The listing gives a salary range of €45K–€80K and equity of 1.00%–3.00%.
What experience does the company require?
Candidates should have 3+ years’ experience, have shipped end-to-end products, and possess hands-on experience building agentic systems and strong product instincts.
When does the role start and is visa sponsorship available?
Start date is flexible. Regarding visa sponsorship or specific immigration support, not confirmed in the source.
AboutCompaniesStartup JobsFind a Co-FounderLibrarySAFEResources Apply nao Labs AI data IDE Founding Software Engineer €45K – €80K EUR • 1.00% – 3.00% • Paris, IDF, FR / Paris, Île-de-France, FR Job…
Sources
- Nao Labs (Open-Source Analytics Agent, YC X25) Is Hiring
- Founding AI engineer at nao Labs
- Nao Labs
- Emploi de founding software engineer à Paris, Île-de-France
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