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UK remote

Senior Backend Software Engineer

gbPosted 28 Oct 2026

Start a search — €9.99Apply on employer site

About this role

What will you be working on? Drive automation and centralisation across partner pricing and billing systems. Build and extend reconciliation systems that ensure pricing and billing accuracy for partners. Design and implement automated controls around pricing and billing, supporting compliance requirements and financial integrity. Deliver secure solutions for complex partner requirements with a long-term architectural perspective.

Technical responsibilities Design and build features end-to-end across pricing and billing services. Contribute to architectural decisions and code reviews, helping raise the bar on quality, reliability, and observability. Improve the resilience and scalability of systems that support external partners and financial operations. Work with event-driven architectures, including Kafka, alongside MongoDB and MariaDB to build auditable, extensible, and performant systems.

Use AI tooling in the development lifecycle to support delivery and code quality. We are fully aware that it is uncommon for a candidate to have all skills required and we fully support everyone in learning new skills with us. So if you have some of those listed below and are eager to learn more we do want to hear from you! Technical excellence Strong software engineering fundamentals and a track record of contributing significantly to impactful projects.

Experience with Java or a similar object-oriented programming language. Ability to design systems with a longer-term approach, using patterns that allow safe iteration and scaling. Accountability within your team for the availability, reliability, and security of the systems you build. Good judgement in balancing speed, scalability, and risk, with resilience and safety in mind. Ability to address technical debt pragmatically and plan work within an appropriate risk appetite.

Commitment to engineering best practices across observability, security, testing, and responsible data and event usage. Ownership and product mindset Ownership of technical deliverables across projects from design through production. Ability to explain why something is being built, what partner or business problem it solves, and what outcome is expected. Comfort with long-term ownership of systems while collaborating to reduce single points of failure.

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Willingness to take an active role in incident resolution and post-incident learning. Focus on predictable delivery and a healthy engineering cadence. Participation in on-call support for your area when needed. Influence and collaboration Communicate clearly and collaborate effectively across functions to achieve team goals. Mentor and support other engineers in the team. Help onboard new engineers when needed. Promote collaboration that reduces duplicate work and improves shared understanding.

Contribute to broader engineering efforts, communities, or guilds across Wise. Participate in hiring processes and interviews using Wise interviewing practices. Nice to have Experience in payments, fintech, billing, or another regulated financial domain. Experience working with external partners or B2B integrations where correctness and auditability matter. Experience with systems involving compliance, audit, or regulatory requirements.

Familiarity with event-driven architectures, reconciliation systems, or configuration-heavy domains. We are currently only considering local candidates as relocation support is not provided. For local candidates we are able to support transfer of visa sponsorship. Interested? Find out more: How we work – a practical guide DEI @ Wise Wise Tech Stack (2025 update) Our Engineering career map Scaling our Infrastructure; how we make it work Wise Engineering – https://medium.com/wise-engineering What do we offer: Starting salary: £87.5k - £111k + RSUs Wise Benefits For everyone, everywhere.

We're people building money without borders — without judgement or prejudice, too. We believe teams are strongest when they are diverse, equitable and inclusive. We're proud to have a truly international team, and we celebrate our differences. Inclusive teams help us live our values and make sure every Wiser feels respected, empowered to contribute towards our mission and able to progress in their careers. If you want to find out more about what it's like to work at Wise visit Wise.Jobs .

Keep up to date with life at Wise by following us on LinkedIn and Instagram . Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money. As part of our team, you will be helping us create an entirely new network for the world's money.

For everyone, everywhere. More about our mission and what we offer .

Source listing: smartrecruiters_wise

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