Senior Frontend Engineer

The next great GTM company is being built in Barcelona Enginy is a Barcelona-based startup and one of Southern Europe's fastest-growing companies ranked #3 in the Sifted 100: Southern Europe 2026, and we're just getting started. 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. 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 the stage where strong engineers have an outsized impact. As a Frontend Engineer, you'll own the experiences our customers use every day: dashboards, campaign builders and reporting UIs that turn a powerful engine into a product people love. You'll work closely with Product and Design and help shape how we build the frontend as the company scales. If you care about performance, craft and seeing your work in front of customers every day, you'll have plenty of room to make a difference here. About the role Our platform does a lot prospecting, enrichment, signals, AI research and outreach and the frontend is where all of it has to feel simple, fast and reliable. That's the challenge you'll own. We're looking for an engineer who does more than implement designs: someone who owns features end to end and cares about quality, performance and developer experience. Idea → design → build → ship → measure What you'll own Customer-facing product: develop high-quality, responsive web applications with React + TypeScript Core UIs: own dashboards, campaign builders, reporting UIs and the API layers that support them Rendering & services: work on internal tools, SSR/edge rendering and lightweight Node.js services Performance: focus on speed, Core Web Vitals and a great developer experience End-to-end delivery: collaborate closely with Product, Design and Backend to ship complete features with a focus on quality, reliability and speed Engineering standards: help shape frontend practices, code quality and architecture as we scale About you 5+ years of professional software engineering experience with a strong frontend focus Strong experience with TypeScript and React Solid understanding of modern web architectures and how the frontend talks to APIs Ability to work autonomously, debug complex issues and ship high-quality code Product and design sensibility you care about how things feel, not just how they work Strong communication skills and an advanced level of English Bias for action and ownership you thrive in a fast-moving startup Nice to have Knowledge of UI performance optimization, design systems or a11y testing Experience with SSR/edge rendering and Node.js Basic exposure to backend work and relational databases (PostgreSQL or similar) CI/CD…