Senior Front end Engineer I

Checkout.com · London

This is a live UK-based role at Checkout.com, a UK Skilled Worker sponsor tracked by Sponsorly AI against the Home Office register. Posted 23 September 2026. Listed as open until 23 October 2026.

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About this role

Company Description We’re http://checkout.comCheckout.com http://Checkout.com. You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, there’s a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, you’ve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, we’re shaping the future of fintech – and we’re just getting started. As a Senior Software Engineer embedded within a multifunctional team, you will collaborate with Product and Design counterparts to lead the UI implementation of Checkout.com http://Checkout.com products and services, ensuring our merchants enjoy an optimal experience across all frontend touchpoints. We seek engineers who are versatile, demonstrate exceptional leadership qualities, and are enthusiastic about tackling new challenges across the full stack as we push technology forward. With your technical expertise, you will lead project priorities, manage deadlines, and ensure high-quality deliverables. You will be responsible for designing, developing, testing, deploying, maintaining, and enhancing software solutions. Qualifications - Comprehensive skills in React and TypeScript: Capable of architecting complex applications, driving best practices, and mentoring others. - Extensive experience in software development, design, and architecture, with a strong focus on security - Experience collaborating on software projects with both design and backend teams - Experience with Continuous Integration and Deployment workflows - Cloud-based application development experience - Strong customer focus; building accessible applications with a great UX - Experience leading tech initiatives, guiding your team and delivering - Experience building reliable, accessible and well-tested systems. - Great communication skills and ability to interact effectively with multidisciplinary teams Desirable: - Some experience with C# is nice to have - Understanding of common security vulnerabilities and performance issues in web applications and knowing how to debug them - Experience with asynchronous, event-driven architecture - Database experience with NoSQL, ElasticSearch or similar tool Additional Information Bring all of you to work We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one. Here, you’ll move fast, take on mea…

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Listing tracked by Sponsorly AI from Checkout.com's own job posting. Apply directly with the employer — Sponsorly does not process applications.