Full Stack Software Engineer — Python/FastAPI/React

Software Engineer Python/FastAPI/React Amsterdam My client isn't looking for someone to execute a roadmap. They're looking for someone to help write it. They're a fast-moving, well-funded startup based in Amsterdam with 400+ paying customers, a 4+ year runway, and a founding team that knows how to build. They're at the stage where things are working, and now they need the right people to help them scale. The role This is a hands-on engineering role with real ownership. You'll work across the full stack, help shape technical decisions, and have a direct impact on the product and where it goes next. No bureaucracy, no endless approval chains, just a small, talented team moving fast and building something people actually pay for. What you'll be doing Building and improving core product features end-to-endContributing to architectural decisions, not just implementing themWorking closely with the founding team to shape the product roadmapOwning your work from idea to productionThe stack Python · FastAPI · React What they're looking for Strong experience with Python and ReactSomeone who thrives with autonomy and takes pride in their workA builder's mindset, you care about the product, not just the codeBased in Amsterdam or happy to relocate Why join them? ✅ Serious traction, 400+ paying customers already ✅ Strong investment, 4+ year runway ✅ Impressive founding team with a track record ✅ Real ownership and influence from day one ✅ Fast-moving environment where your work actually matters If you want to join a startup that's past the risky early stage but still early enough to shape, my client would love to hear from you.