Senior Penetration Tester

Company: Starling Bank

Location: London

Posted: April 17th, 2026

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Read more about Our Story here.

We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling – our preference is that you’re located within a commutable distance of one of our offices so that we’re able to interact and collaborate in person. In Technology, we’re asking that you attend the office a minimum of 1 day per week.

About the Role

As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cybersecurity professionals to ensure our services are designed, developed and operated securely.

This is a collaborative role – you’ll directly interact with multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework.

Being an internal tester, you’ll gain a strong understanding of how technology works at Starling to enable in-depth testing. You’ll also support remediation processes, seeing your findings lead to tangible security improvements.

We understand the importance of knowledge and expertise remaining current, so we’ll actively support your advancement through research and training. In turn, you’ll help us continuously improve our processes, methodologies and tools to maintain the highest standard of testing.

Responsibilities

We’re open-minded when it comes to hiring and we care more about aptitude and attitude than specific experience or qualifications.

Ideally, we would like:

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