Senior Software Engineer (Backend)

superpayments

London · United Kingdom

Posted Feb 25, 2026

Other
Technology

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Job description

Super Payments

Super Payments is the only global fintech platform providing 0% processing fees for merchants. Our mission is to use data and AI to make payments free for businesses, so that everyone wins.

At Super, we are disrupting payments, like Spotify did to music and Robinhood did to trading. We don't make money from transaction fees; instead, we monetise through value-added services such as lender commissions and FX. Our platform supports multiple payment methods — from traditional cards to direct bank transfers via open banking, as well as Apple Pay, Google Pay, and our own Buy Now Pay Later solution.

Super has raised $66M from leading investors including Accel, Union Square Ventures and Local Globe (the same investors behind Spotify, Stripe, Monzo) and founded by Samir Desai CBE, co-founder of Funding Circle.

Already trusted by thousands of businesses and more than 4 million customers, Super is processing at a run rate of £1.5B and growing 4x YOY

Our Values

Customer obsessed: We only succeed when our customers do.
Move fast: Build, test and improve quickly. Progress matters more than perfection.
Own it: Be accountable, solve problems, and make it happen.
Be open: Act with honesty and respect. Transparency builds trust.
Win together: Collaboration beats ego every time.

Our Technology

We leverage the latest tools and technologies to create a seamless, customer-centric digital experience. Our core stack is built around Node.js, TypeScript, and NestJS, with a front-end powered by React. We deploy using AWS cloud services and Kubernetes, ensuring scalability and resilience. Infrastructure as Code is fundamental to our approach, and we use Terraform to manage our cloud resources.

Our architecture is cloud-native, event-driven, and distributed, built on Amazon EventBridge and SQS, with services exposed via REST.

We are driven by data science, machine learning, and analytics, using multi-variant testing to personalise user experiences across every digital channel.

However, it’s not just about the technology. We are passionate about continuous delivery, automation, and rapid iteration. Our deployment pipeline is fully automated, covering everything from branching, building, testing, and shipping to monitoring and alerting—allowing us to focus on delivering value to our customers.

Technology is at the heart of our business, and we value diverse perspectives. Bring your ideas, experience, and problem-solving mindset—we’ll navigate obstacles together.

What You’ll Be Doing

Spearheading the design and evolution of our B2B API, personalisation and payments infrastructure.
Collaborating with UX and product teams in discovery, ideation, and problem-solving.
Contributing to engineering-wide initiatives, participating in technical discussions, architecture decisions, and best practice sharing.
Developing a deep understanding of our business, customers, and domain—applying your judgement to make autonomous decisions.
Mentoring and supporting the growth of our engineering community, sharing knowledge through pairing, talks, and external speaking opportunities.

We’d love to hear from you if you:

Have at least 8 years of experience in software engineering.
Have worked on any one of the following areas:

Financial Services in areas like payments/wealth management/banking
The payments infrastructure at a large eCommerce site
High-volume transaction scale-up (e.g., betting, gaming, or streaming)

Have a delivery-focused mindset, using agile practices to drive team success.
Bring experience with a variety of programming languages.
Are willing to work with Node.js, TypeScript, NestJS, and AWS cloud technologies.
Have experience designing and provisioning cloud-based infrastructure, using Infrastructure as Code (Terraform).
Ideally, have worked with Kubernetes and understand the fundamentals of containerized deployments.
Have built and supported publicly accessible REST APIs.
Understand application development, continuous delivery, test automation, and security within distributed services.
Have a track record of improving code quality, performance, stability, and scalability.
Are comfortable working in a fast-paced, evolving start-up environment.
Can work independently, tackling ambiguous challenges and driving solutions forward.

To learn more about about engineering at Super Payments follow this link. https://gist.github.com/sam-super/9c40d3d23fa577ed2e96f2ca68f1d639

*The stated experience and background is a guide and does not preclude applications from candidates with more or less experience, provided the requisite skills can be demonstrated.

Our Benefits - here’s a few and more to come ….

Tax advantage Share Options
Flexible working model
Work from home set up
Learning & Development opportunities
Contributory Pension Scheme
Free Team lunch (Tues & Thurs) and social evenings
Comprehensive PMI & x4 Life Insurance
Your birthday off, plus one Revival day

If you are excited about sharing the adventure, joining a growing team with big ambitions and you are really great at what you do, then apply now!

Super Payments is an equal opportunity employer, embracing diversity in all its forms and fostering an inclusive environment. The company will not unlawfully discriminate on grounds of gender, sexual orientation, marital or civil partner status, gender reassignment, race, religion or belief, colour, nationality, ethnic or national origin, disability or age, neurodiversity status, pregnancy or trade union membership.

Please let us know if you require any reasonable adjustments at any point during the application and/or recruitment process.