Early Team Members Wanted – Build a Startup from Scratch (Sales, Ops, Product, Tech)

At OSS Ventures we're looking for a First Hires in Our Startups to join our team.

TL;DR

• Position also known as (or close to) : Founding Engineer / Lead Developer – Operations Manager / Deployment Strategist – Sales Development Representative – Account Executive
• Location(s) : Paris (HQ), France, Remote EU-friendly
• Salary range : Competitive (early-stage equity possible depending on role/seniority)
• Type of Contract : CDI / Internship / CDD
• Direct reporting line : Startup Founders (CEO / CTO)
• Start date : ASAP (continuous pipeline)

Companies Introduction

• Our Ambition : Build the next generation of category-defining B2B companies in Europe.
• Our Mission : Partner with exceptional founders and their first hires to crack industries where technology changes the rules.
• Our Story : OSS Ventures is a startup studio & VC. We co-found startups from scratch and scale them with experienced operators. We’ve launched 22 companies in 5 years.
• Our Values : Trusting team excellence – Fail, learn, succeed – We eat what we kill – Compound the system – Build something the world needs – Think and do it quick.
• Our Team : A mix of entrepreneurs, engineers, and operators obsessed with building companies that matter.

Why we need you

• Founding Engineer / Lead Developer → You’ll own the first lines of code, design the MVP architecture, and set the foundations for a scalable product side by side with the CTO.
• Operations Manager / Deployment Strategist → You’ll structure the first processes, handle client onboarding, and ensure the startup delivers on its promises while scaling operations.
• Sales Development Representative (SDR) → You’ll open doors with the first clients, qualify leads, and set the tone for how we create opportunities in a new market.
• Account Executive → You’ll own the first deals from demo to close, shaping the playbook of how the startup wins its first 10 customers.
• In a nutshell : you’ll be in the 0 → 1 phase of a startup, working hands-on to turn vision into reality.
• Broadly speaking : your job is to build, learn fast, and set up processes that survive scale.
• On a day-to-day basis : you’ll wear multiple hats, collaborate directly with founders, and test, ship, and iterate constantly.

Who You’ll Be Working With

• Founders (CEO / CTO) of the startup.
• Other first hires (product, sales, ops).
• OSS Partners & network (to help you go faster).

What’s next in your career path ?

• Early employee → Lead → Manager → C-level within the startup.
• Or: spin off your own venture in the OSS ecosystem.

Your profile to make this a success

Mandatory Required Skills (adapted By Role)

• Engineer → 2–5y building software, shipping products, ideally SaaS.
• Ops → 2–4y in consulting / ops / bizops / client delivery.
• SDR → 0–2y sales experience, strong hunter mindset.
• AE → 2–5y B2B sales, closing track record.

This will be important in your job, we’ll teach what you miss

• Startup tooling, OSS methods, industry knowledge.

We kindly advise you to think twice before applying if…

• You’re not location-flexible.
• You are not an entrepreneurial profile.
• You are not looking for a positively challenging job.
• You’re not fully comfortable working in French and English.

Final words to our candidates

• WHF or in-office ? Hybrid.
• Work & Life Balance : We’re in early-stage, it’s intense but we value sustainability.
• We welcome ALL candidates : Diversity & inclusion are non-negotiable.