Senior Software Engineer I

Job Summary

Senior Software Engineer at Checkout.com will develop next‑generation payment technologies to help merchants increase acceptance rates, reduce costs, combat fraud, and create outstanding customer experiences. Working across Checkout.com’s portfolio of products, you will design, build, and maintain scalable, high‑availability systems while mentoring junior engineers and collaborating with cross‑functional teams.

Responsibilities

• Lead and drive specific projects that are critical to Checkout’s needs, setting priorities, deadlines, and deliverables.
• Collaborate with product management, design, and other engineering teams across a large community.
• Design, develop, test, deploy, maintain, and enhance software solutions in a backend or full‑stack environment.
• Mentor junior team members and assist in their technical development.
• Build, own, and operate systems to the highest levels of resilience and service.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• Proficiency in C# .NET, Java, or Go with a strong understanding of software development principles in a backend or full‑stack context.
• Excellent communication skills and the ability to interact effectively with a wide range of stakeholders.
• Experience in agile environments and delivering high‑quality code within tight deadlines.
• Strong problem‑solving skills and the ability to work independently as well as part of a team.
• AI proficiency or curiosity, and a willingness to embrace the latest technologies to improve productivity.
• Payments or financial knowledge is a plus, but not required.

Impact

Collaborate with cross‑functional teams; define and design loosely coupled, scalable microservices using industry best practices; stay up‑to‑date with the latest technologies; write clean, maintainable, testable code; mentor junior engineers; and own resilient, high‑reliability systems within Checkout’s impact‑driven culture.

Benefits

Hybrid working model offering flexibility with three days per week in the office to support collaboration and connection.

Inclusive Culture

Checkout.com values diversity and inclusion, encouraging applicants from all backgrounds and identities to apply.