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• Company Description
• 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.

Global payments are complex and ever-evolving. At Checkout our software engineers develop the next‑generation payments technologies that enable our Merchants to boost their acceptance rates, cut processing costs, fight fraud, and create cutting edge technology that enables extraordinary customer experiences.

We're looking for Senior Software engineers who bring fresh ideas, have a curious nature and are passionate about working in an Engineering environment which focuses on building products to achieve the company's strategic goals.

You'll get to work with teams from across Checkout.com's portfolio of products and services who all have a real customer first philosophy. As a Senior Software Engineer you will lead and drive specific projects critical to Checkout's needs with opportunities to switch teams and projects as you and our fast‑paced business grow and evolve.

We need our engineers to be versatile, display exceptional leadership qualities and be enthusiastic to take on new problems across the full‑stack as we continue to push technology forward.

With your technical expertise you will lead project priorities, deadlines and deliverables. You will design, develop, test, deploy, maintain and enhance software solutions.

• Bachelor's or Master's degree in Computer Science, Engineering, or related field
• Proficiency in C# .NET, Java, or Go, with a strong understanding of software development principles in either a backend or full stack environment.
• Great communication skills and ability to interact effectively with a wide range of stakeholders
• Experience working in agile environments and delivering high‑quality code within tight deadlines
• Excellent problem‑solving skills and the ability to work independently as well as part of a team
• Someone who is AI proficient or AI curious; you will be hungry to embrace what the latest technology has to offer to enhance yours and your teams productivity
• Payments or financial knowledge is a plus, but not a necessity

• Be part of, and collaborate with, cross‑functional teams including product management, across a large engineering community.
• Define and design loosely coupled, scalable systems in a wider microservices environment using industry best practices.
• Stay up‑to‑date, use, and spread knowledge of the latest technologies used by Checkout.
• Write clean, maintainable, extendable and testable code on some of Checkout's most impactful systems.
• Build, own and operate your systems to the highest levels of resilience and service.
• Mentor junior team members and assist in their technical development.
• 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 difference, you'll be right at home here. It's important we set you up for success and make our process as accessible as possible.

So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable.

We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection. To learn more about our culture, open roles, and what drives us, for a closer look at daily life at Checkout.com, follow us on and #J-.