Senior Product Engineer

The next great GTM company is being built in Barcelona At Enginy we’re building the AI-native GTM platform for modern B2B teams, combining prospecting, enrichment, intent signals, AI research and outreach into one product so sales teams can focus on what truly matters: selling. No wasted time, just results. We are one of Southern Europe's fastest-growing companies, ranked #3 in the Sifted 100: Southern Europe 2026, and we're just getting started. After raising a €5M seed round, we're scaling internationally and growing the team behind the product. That means more users, more data, more integrations and harder engineering problems exactly at the stage where strong technical leadership has an outsized impact. We're looking for a Senior Product Engineer who wants to build great software and great engineering teams. You'll lead from the code, set the technical direction for your team, and help define how Enginy builds as the company scales. You'll join early enough to shape the architecture, standards and culture at a stage where customer demand already creates real engineering challenges. 💪🏻 What You’ll Do Depending on your background and strengths, you will take ownership across one or more of the following areas: Backend Build and maintain scalable, reliable services powering our core engine. Work with async architectures, data pipelines, and workflow orchestration (Temporal). Design and implement production-grade APIs and integrations with external platforms (CRMs, LinkedIn, and more). Optimize performance, debug complex issues, and ensure strong observability. Frontend Develop high-quality, responsive web applications using React + TypeScript. Own customer-facing dashboards, campaign builders, reporting UIs, and supporting API layers. Work on internal tools, SSR/edge rendering, and lightweight Node.js services. Focus on performance, Core Web Vitals, and developer experience. Cross-functional Collaborate closely with Product, Design, and Engineering teams. Ship end-to-end functionality with a clear focus on quality, reliability, and speed. Help shape engineering practices, code quality, and architecture as we scale. 🔎 What We’re Looking For (Must-Have) 4+ years of professional software engineering experience (Backend, Frontend, or Full-Stack). Strong experience with TypeScript and either Node.js or React . Solid understanding of modern API design, async workflows, or web architectures. Experience working with relational databases (PostgreSQL or similar). Ability to work autonomously, debug complex issues, and ship high-quality code. Strong communication skills and an advanced level of English. Nice-to-Have Experience in early-stage or fast-scaling startups. Familiarity with workflow engines (e.g., Temporal), distributed systems, or microservices. Knowledge of UI performance optimization, design systems, or a11y testing. CI/CD practice with GitHub Actions. Interest in B2B…