Backend Developer - Mern stack (Express+ Node) - Hibrido Porto

Job description

Backend Developer (Node.js/MongoDB/Express.js) Hybrid Lisbon · 2–3 days/week office ABOUT THE OPPORTUNITY: Join a fast-growing, product-led tech team operating within one of Iberia's most recognised energy and mobility groups. This is a rare opportunity to work on a platform with real market impact — shaping the future of sustainable mobility infrastructure across Portugal and Spain. You will be working in a high-ownership engineering culture where backend engineers are partners in architecture decisions — not just implementers. The stack is modern, the team is collaborative, and the product is live, growing, and used at scale. PROJECT & CONTEXT: The platform sits at the intersection of EV charging, digital payments, and fleet management — a high-complexity, high-traffic environment where reliability and performance are non-negotiable. The backend team owns the full lifecycle of its services: design, build, deploy, and monitor. Day-to-day, you will: Design, build, and maintain RESTful APIs using Node.js (v18+) and Express.js Architect and optimise MongoDB data models (schema design, aggregation pipelines, indexing strategies) Collaborate closely with frontend engineers, product man...