Software Engineer: Back-End II

Build and run the platforms that power how people pay

Why this role exists

We’re expanding our payments capability and need a senior engineer to help us design, build and run critical payment services. This role exists to strengthen how we process card payments at scale, while keeping delivery fast, reliable and well-owned by the people who build the systems.

What you’ll do

• We’ll rely on you to design and build payment processing services used for in-store and online card payments.
• We’ll expect you to shape transaction pipelines end-to-end, from ingestion and validation through to authorisation and downstream processing.
• We’ll ask you to build and maintain integrations with card schemes and partner systems, with a strong focus on accuracy and resilience.
• We’ll count on you to design clear, well-structured APIs that other teams can use with confidence.
• We’ll expect you to own your services in production, including monitoring, incident response and continuous improvement.
• We’ll involve you in technical decisions that improve how we scale, secure and operate our payments platform.

Our team

We’re building a modern payments platform inside a bank that moves like a fintech — small autonomous teams, engineers who own their services end-to-end, and releases measured in days, not quarters. You’ll design and build processing services across card-present and card-not-present channels, working from transaction pipelines and scheme integrations through to API design and AWS infrastructure.

We’re looking for 5+ years of hands-on payments experience, strong Java or Node.js/TypeScript, and comfort operating in Kubernetes and event-driven architectures. If you bring deep domain expertise but wear it lightly, we’d love to talk.

Our teams are intentionally small and hands-on. Engineers work closely with each other and with product partners, owning real systems that move real money every day.

Why this role is different

• True ownership: We trust engineers to own services end-to-end, from design to live operation.
• Real impact: What you build will be used at scale and will matter to customers every day.
• Strong influence: We value senior engineers who shape architecture, standards and ways of working.
• Human culture: We value depth of expertise, curiosity and collaboration over ego.

What we’re looking for

• At least 5 years of hands-on experience building payment systems or transaction-heavy financial platforms
• Strong back-end development experience in Java or Node.js with TypeScript
• Proven experience working with card payment processing, including in-store and online transactions
• Experience designing and supporting transaction pipelines and external integrations
• Practical experience running services on Kubernetes
• Experience with event-driven system design
• Working knowledge of AWS and cloud-based infrastructure
• Strong API design skills and a focus on reliability, security and operability
• A mindset of ownership, accountability and continuous improvement
• Clear communication skills and the ability to work well in small, autonomous teams

Ready to build what payments depend on?

If you want to work on complex payment systems, own your services end-to-end and be part of a team that delivers at pace, we’d love to hear from you. Apply now and let’s build something that matters.

Education (Minimum)

Education (Ideal or Preferred)

Skills

Additional Information