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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Full Stack Engineer at Tengo
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.
About this role
Role overview
About the company
Tengo
Software
Tengo - Hexa-backed AI platform for public tenders
What you'll do
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.
Who you are
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.
Why this role
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.
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