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Barclays Logo Barclays · IT - Software Development

Staff Software Engineer - Payments Enterprise Technology

United Kingdom, London · Job Posted June 02, 2026
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Job Description

A fantastic opportunity to join us as we create a standalone Payments Acquiring business embracing a fintech culture from our new offices alongside our Brookfield partners. Barclays’ payments acceptance business provides critical infrastructure to the UK economy, processing billions of pounds of payments annually for both small businesses and corporate clients. This is an exciting time to join a unique project well suited to candidates who thrive in a fast paced, flat organisation with significant autonomy. Our platform & infrastructure team provide the hardened, high-velocity foundations that allow our product teams to ship code to production that moves billions of pounds with total confidence. As a Staff Software Engineer on our Platform team, you are a builder and multiplier for how our engineering organisation ships software. This is a high-impact execution role where you’ll lead wide-ranging deliverables, improve the developer experience, and help set strong engineering defaults, while still staying hands-on with product and delivery colleagues.

Job Responsibility

  • Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools, ensuring that code is scalable, maintainable, and optimized for performance
  • Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives
  • Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing
  • Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth
  • Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions
  • Implementation of effective unit testing practices to ensure proper code design, readability, and reliability

Requirements

  • Extensive experience building complex, scalable systems
  • Detailed command of Cloud, Kubernetes, and the broader CNCF ecosystem
  • A polyglot mindset – expertise of at least two languages (e.g., Rust, Go, Kotlin) and a "right tool for the job" philosophy
  • Ability to bring both technical and non-technical stakeholders on the journey, explaining complex technical trade-offs
  • Product thinking – you treat the platform as a product, with fellow engineers as your customers
  • Good experience of collaboration with various stakeholders such as Product Managers

Nice to have

  • Ability to bring both technical and non-technical stakeholders on the journey, explaining complex technical trade-offs to those who might not know what a "service mesh" is
  • Product thinking – you treat the platform as a product, with fellow engineers as your customers
  • Good experience of collaboration with various stakeholders such as Product Managers

What we offer

  • Competitive holiday allowance
  • Life assurance
  • Private medical care
  • Pension contribution
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