Join a fast-growing team as a Full Stack Engineer to revolutionize how companies win public contracts. You will build high-performance collaborative productivity tools and sophisticated AI bid-response workflows. Working directly with the CTO, you will own features end-to-end, translating complex user needs into seamless, pixel-perfect interfaces that save weeks of manual work.
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Paris, FranceNot Disclosed + Equity
Full Stack Engineer at Tengo - VC-backed AI Startup
Tengo is transforming the massive €500M/day public tender market by building an AI-powered operating system for winning contracts. Born out of the legendary Hexa studio (Aircall, Front) and backed by a €3M seed from Point Nine, this is a rare opportunity for a Full Stack Engineer to join an elite early-stage team in Paris. You'll move absurdly fast, shipping RAG workflows and high-end collaborative tools that turn weeks of paperwork into minutes of AI-driven productivity. If you're a product-minded builder who thrives on ownership and high-velocity shipping, Tengo is where you belong.
Overview
Role overview
Company
Tengo
Software
Tengo - Hexa-backed AI platform for public tenders
Responsibilities
What you will do
- Develop and refine a collaborative B2B SaaS platform using React and TypeScript, ensuring an elite UX for teams managing complex tender pipelines.
- Architect and implement AI-driven features, including RAG workflows and document ingestion systems that generate tailored, multi-page bid responses in minutes.
- Own the full product lifecycle from discovery to deployment, collaborating with the CEO and CTO to suggest technical tradeoffs and fix real-world user problems.
Candidate profile
Who this is a fit for
- Professional experience (3-8 years) in full-stack development with deep expertise in React and a strong command of TypeScript and NestJS.
- Proven track record of shipping products in fast-paced startup environments, possessing a "builder" mindset that favors speed and iteration over over-engineering.
- Excellent communication skills and low ego, comfortable working in a hybrid Paris environment and eager to contribute to a transparent, high-trust team culture.
What makes it remarkable
Why this role is remarkable
- Exceptional pedigree as a venture-backed startup from Hexa (the studio behind Aircall, Spendesk, and Front) with a €3M seed round led by Point Nine.
- Direct impact on a €500M daily market by building the first "operating system" for public tenders using cutting-edge RAG and LLM workflows.
- High-velocity shipping culture where you act as a founder, participating in user calls and seeing your code reach clients like Carrefour and OpenClassrooms immediately.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack