Fullstack Developer

Job description

Full-stack Developer Manna · Amsterdam · Full-time (40h) Manna runs performance lead generation at scale. We buy traffic on Meta, Google and Native, run proprietary funnels, and deliver qualified leads to enterprise partners across hearing care, home improvement, insurance and meal delivery in the EU and North America. At the centre of this operation sits LeadExpert — our in-house platform that routes, validates, caps and delivers every lead we sell. It is our technical moat. The roadmap ahead is ambitious: new platform capabilities, deeper partner integrations, and AI embedded into the parts of the business where it compounds margin. We’re expanding our engineering capacity and looking for a Backend Engineer who wants real ownership. You will own meaningful parts of the roadmap end-to-end — not ticket cleanup. If you like shipping fast, touching real revenue, and helping turn a performance agency into an AI-first operation, this is the seat. What you’ll own: Platform development: take features from spec to production, including the hard ones. Operations is your internal customer, not your manager. AI integration: ship production-grade LLM integrations into the platform and adjacen...