ABOUT THE ROLE: We are looking for a passionate and experienced self-driven Senior JavaScript Engineer to join in on our mission to deliver the greatest igaming experience to our customers. As a part of our multinational frontend team, you would set the technical direction that other engineers build on, designing and maintaining the shared frontend framework that our frontend teams deliver from. In close collaboration with designers and our backend peers, we get to work with a broad variety of initiatives: everything from responsible gaming and payments to the casino lobby layout and new market entries. YOU WILL BE RESPONSIBLE FOR: Architecting, improving, and maintaining our internal front-end framework and foundational platform Designing generic, reusable code for development teams, including APIs, extension points, deprecation paths, and backward compatibility Championing Developer Experience (DX) and acting as a developer advocate across engineering teams Driving the foundational front-end development powering LeoVegas.com , supporting new brand launches and market expansions Setting technical direction, standards, and best practices across front-end engineering Coaching and mentoring engineers across our multinational front-end teams Developing high-quality, product-focused JavaScript applications to deliver a smooth and engaging user experience OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: Essential Skills: Proven experience with JavaScript, alongside hands-on working experience with React, TypeScript, and Next.js Solid knowledge of GraphQL A proven track record of designing and evolving shared code, libraries, frameworks, or design systems consumed by other teams - including versioning, deprecation, and migration strategies Demonstrated success in coaching, mentoring, and growing other engineers Nice to Have: Experience leveraging AI-powered developer tools such as Claude or GitHub Copilot Curiosity and enthusiasm for adopting AI to enhance engineering practices and software delivery Comfort with front-end observability and monitoring tools Experience integrating a headless CMS into a component-driven frontend Familiarity with build tooling at monorepo scale WHO WE ARE: At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. BENEFITS: Hybrid work policy 4 weeks of Workation (T&C apply) 30 annual vacation days Occupational Pension 5,000 SEK wellness contribution annually Parental Leave Top-Up Possibility to enrol in a private health care insurance for both you and your partner 1,500 SEK equipment allowance Benify - benefits portal with many offers and discounts JOIN US! In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen! Would you be a good fit for the Leo Pride - give us a roar! As our company's working language is English, we’d like to see your CV in English , please.