Senior Full Stack Engineer

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 own significant parts of that experience end-to-end, working hands-on with product and design to ship work that matters. You'll do this as we build and launch Toggl 2.0, our consolidated planning, time tracking, and time intelligence product.

You can work from anywhere in the world as long as your main location is between UTC-4 and UTC+4. Team meetings are scheduled between 11:00 and 16:00 UTC.

You'll work in the Tribe serving managers, across planning and capacity management, dashboards, and billable work — some of the most data-dense, interaction-heavy surface area in the product. You'll build with React and TypeScript on the frontend and 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.

• Significant experience building and shipping production web applications end to end, able to lead major projects rather than just contribute to them
• Genuinely comfortable on both sides of the stack — deep on one side and properly capable on the other
• Deep, practical knowledge of JavaScript, TypeScript, React, and modern CSS, including state management and side-effect handling in large applications
• Solid on backend fundamentals: at least one backend language you know well, API design, relational data modelling, and instinct for query performance. Prior Golang experience is not mandatory but you must be willing to adopt it fast
• Extremely high bar for quality — you don't ship work you wouldn't put your name on
• A knack for data-heavy product surfaces — performance, readability, and charts that communicate something
• Care about the user's problem, not just the ticket
• Own outcomes, not output
• Thrive in ambiguity and move fast
• Hands-on with AI tools as a core part of how you build
• Don't need to be managed
• Excellent written and verbal English communication skills
• Eager to contribute to the engineering team's growth — code review, mentoring, and interviewing

Nice to have

• Experience with TanStack, and understanding of frontend caching and eventual consistency
• Experience with capacity planning, scheduling, reporting, or other complex B2B SaaS products
• Experience with distributed or microservice systems, infrastructure as code, and CI/CD pipelines