Senior Front End Engineer

Company Description We’re Checkout.com – you might not know our name, but companies like eBay, ASOS, Klarna, Uber Eats, and Sony do. That moment when you check out online? We make it happen. Checkout.com is where the world checks out. Our global network powers billions of transactions every year, making money move without making a fuss. We spent years perfecting a service most people will never notice. Because when digital payments just work, businesses grow, customers stay, and no one stops to think about why. With 19 offices spanning six continents, we feel at home everywhere – but London is our HQ. Wherever our people work their magic, they’re fast-moving, performance-obsessed, and driven by being better every day. Ideal. Because a role here isn’t just another job; it’s a career-defining opportunity to build the future of fintech. Job Description Company Description We’re Checkout.com – you might not know our name, but companies like eBay, ASOS, Klarna, Uber Eats, and Sony do. That moment when you check out online? We make it happen. Checkout.com is where the world checks out. Our global network powers billions of transactions every year, making money move without making a fuss. We spent years perfecting a service most people will never notice. Because when digital payments just work, businesses grow, customers stay, and no one stops to think about why. With 19 offices spanning six continents, we feel at home everywhere – but London is our HQ. Wherever our people work their magic, they’re fast-moving, performance-obsessed, and driven by being better every day. Ideal. Because a role here isn’t just another job; it’s a career-defining opportunity to build the future of fintech. Job Description 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 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 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 meaningful challenges, and be recognized for the impact you deliver. It’s a place where ambition gets met with opportunity – and where your growth is in your hands. We work as one team, and we back each other to succeed. So whatever your background or identity, if you’re ready to grow and make a ... (truncated, view full listing at source)