Senior Software Engineer - C#

KotlinC# Hybrid

Our Story

Hello there. We’re Zopa.

We started our journey back in 2005, building the first ever peer-to-peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like about finance and does the opposite. We’re redefining what it feels like to work in finance. Our vision for a new era of banking puts people front and centre — we’ve built a business that empowers everyone to aim high, every day, to move finance forward. Find out more about our fantastic offerings at Zopa.com!

We’re incredibly proud of our achievements and none of it would be possible without the amazing team here. It’s not just industry awards we’re winning, we’ve also been named in the top three UK’s Most Loved Workplaces.

If you embrace unconventional challenges, are unafraid to think differently and are driven to make an outsized impact, you’ll thrive here at Zopa, so join us, and make it count. Want to see us in action? Follow us on Instagram @zopalife

The engineering challenge

You will design and evolve the services that power core banking products. The systems you help build process thousands of financial transactions every day. They must be scalable, resilient and secure. When money moves, it has to work. Every time.

But this role goes beyond implementation.

You will shape technical direction. Influence cross-team initiatives. Own complex, high-impact work from concept through to production. You will help decide not just how we build, but what we build and why.

This is senior in impact, not just title.

We’re growing across several of our product-engineering tribes at Zopa, with current opportunities in Current Accounts, Lending, Credit Cards and Product Enablement.

Your impact:

Owning complex initiatives end to end, from idea to measurable outcome

Designing scalable backend systems that stand up to real-world scale and complexity

Making architectural decisions that balance immediate delivery with long-term sustainability

Bringing structure and clarity to ambiguous problems

Influencing prioritisation and trade-offs across teams

Raising the bar for engineering quality, reliability and accountability

Mentoring engineers and strengthening overall team capability

Driving continuous improvement in how we build and operate systems

Your toolkit:

You'll work with C#, Kafka, Kubernetes, Docker, AWS Aurora Postgres, and other modern technologies. If you haven't worked with all of these, we value skilled engineers with a willingness to learn.

A track record of delivering high-impact, complex systems in production environments

Strong testing discipline, with a commitment to strictly following Test-Driven Development (TDD)

Strong systems thinking and architectural judgement

The ability to navigate ambiguity and turn complexity into clear, actionable plans

Confidence making data-informed technical decisions with long-term consequences in mind

Experience influencing beyond your immediate team

A deep customer focus and a bias toward measurable outcomes

Experience mentoring others and amplifying team impact

Ownership beyond your own output

We’ll support your transition and cross-training into a JVM/Kotlin environment. What matters most to us is how you think, how you approach problem-solving, and the scale and impact of what you’ve built.

Our engineering culture:

Customer impact over unnecessary complexity

Team success over individual heroics

Operational ownership, not just feature delivery

Continuous improvement through honest feedback

Added bonus:

Experience with fintech or banking is a plus, but we value problem-solvers from all backgrounds

Apply Now