Front End Engineer

Salary: £45,000 - 83,000 per year

Requirements:

• Proficient in React and TypeScript, with the ability to implement and maintain features with limited guidance while following best practices.
• Experience with modern software development practices, designing and architecting with security in mind.
• Good practical knowledge of OOP concepts and SOLID principles.
• Solid understanding of HTTP and RESTful design.
• Working knowledge of Continuous Integration and Deployment workflows.
• Great communication skills and the ability to interact effectively with multidisciplinary teams.
• Strong customer focus with care for accessibility and user experience.
• Experience building reliable, accessible, and well-tested systems.
• Desirable: some experience with C#.
• Desirable: understanding of common security vulnerabilities and performance issues in web applications, and knowledge of how to debug them.
• Desirable: experience with asynchronous, event-driven architecture.
• Desirable: database experience with NoSQL, ElasticSearch, or similar tools.

Responsibilities:

• Collaborate with Product and Design counterparts to ideate, build, and support the UI for our products and services.
• Ensure our merchants enjoy an optimal experience across all frontend touchpoints.
• Work as a Frontend Software Engineer embedded within a multifunctional team.
• Help define project priorities and manage deadlines.
• Design, develop, test, deploy, maintain, and enhance software solutions.
• Contribute across the full stack as we push technology forward.
• Deliver high-quality outcomes with technical expertise and ownership.

Technologies:

• C#
• ElasticSearch
• Embedded
• Frontend
• HTTP
• Support
• NoSQL
• OOP
• React
• Security
• TypeScript
• Web
• UX UI Design

More:

We are Checkout.com, a global fintech company powering digital payment experiences for brands like eBay, Spotify, Klarna, Uber, and Sony. We process over 10 billion transactions each year for more than one billion shoppers worldwide, and our platform helps ambitious businesses deliver effortless digital experiences at scale. We operate across 20 offices on six continents with London as our HQ. This Frontend Software Engineer role is based in London, is full time, on-site, and part of all departments. We offer a hybrid working model with three days per week in the office, along with a culture built on ownership, collaboration, and high performance, where growth and impact are encouraged from day one.

last updated 36 week of 2026