We are looking for a Senior Full Stack Engineer to join one of our Product Tribes, the cross-functional units that own the end-to-end experience for a specific Toggl user role. You'll join the Tribe building for managers, the people who plan work, protect margins, and keep projects on time and on budget. You'll do this as we build and launch Toggl 2.0, our consolidated planning, time tracking, and time intelligence product.
As a Senior Full Stack Engineer, you own meaningful parts of the product end-to-end, from the data model and the API to the interface someone actually clicks: the technical approach, the quality of what ships, and whether it actually works for the people using it. You'll work in the Tribe serving managers, across planning and capacity management, dashboards, and billable work. This is some of the most data-dense, interaction-heavy surface area in the product: schedules and capacity views, reports, and visualizations that have to stay fast and readable at real customer scale.



The interesting problems live on both sides of the API here - the query behind a capacity view matters as much as how that view renders. You'll build with React and TypeScript on the frontend and our backend services (mostly Golang) and data layer (Postgres) behind them, alongside a product manager, a designer, and engineers who are used to owning their work and pushing back when something isn't right. Take projects from problem to production. Own the technical approach for major features front to back, break the work down sensibly, sequence it, and ship in slices rather than one big drop.
Craft and quality across the stack
Build interfaces people trust with dense, real-world data. Planning views, dashboards, and reports that stay fast, accessible, and readable when the dataset gets ugly.
Design the data and API layer those views depend on. Model it so the feature you're building now doesn't make the next three harder.
Own performance as a feature, end to end. Profile, measur

📌 Full Stack Engineer/Agile Engineer (Madrid)
🏢 Toggl
📍 Madrid