Lead Engineer | Software Development Engineer in Test |SDET

Job description
Role: Lead Engineer - Software Development Engineer in Test (SDET)

Function: CIO

Salary: £Competitive plus excellent benefits

Location: Hybrid working/Flexible across our key sites

Closing Date: 16 September 2026

At TSB, we’re transforming the service we provide our customers, and technology will be at the forefront of that change. It’s an exciting transformation to an agile environment and we’re investing in a new in-house engineering capability to deliver it – so, if you’re a forward-looking and innovative IT professional, this is your opportunity to be in on the ground floor and help us build the future of banking.

How You’ll Make a Difference

As a Lead Software Development Engineer in Test (SDET), you’ll play a pivotal role in accelerating delivery of high-quality products. You’ll leverage your extensive technical expertise and leadership skills to build quality into products, mentor junior team members, and drive innovation across TSB.

You’ll be a proficient software engineer and have a deep understanding of testing principles. You’ll have strong financial services knowledge enabling you to be effective in early product refinement using Behaviour Driven Development (BDD) techniques. As a Lead SDET, you’ll drive continuous improvement and innovation, explore new technology and ways of working to enhance team productivity and efficiency. Furthermore, you’ll work with product owners, application engineers and operations to define specific and targeted test approaches.

What You’ll Bring
• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field, or equivalent work experience.
• Minimum 5 years of hands-on experience with Java and/or JavaScript.
• Solid understanding of Retail and SME Banking products including Lending and Mortgages.
• API level testing using tools such as REST Assured, Spring MVC Test framework.
• Web UI test automation using Playwright, Cypress and/or Selenium.
• Mobile and Desktop UI Testing using Appium.
• Proficient understanding of code versioning tools such as Git.
• Experience with implementing CI/ID pipelines for build, test and deploy using tools such as Github, Jenkins, Azure DevOps etc.
• Background in scaled agile software delivery.

What We Offer In Return
• Hybrid and flexible working arrangements to support a healthy work/life balance.
• A drive for continuous improvement and development.
• An attractive reward and myTSB benefits package, giving you more of what matters to you.
• A diverse, energising, and collaborative working environment.
• A truly inclusive organisation that values difference, where everyone feels welcome and has access to equal opportunities.
• A career that’s enriching and full of opportunities.

If this sounds right up your street, come, and join our team. We make things happen!

We are TSB. Life Made More
• Please note you will be required to sit a Codility test as part of the selection process

Inclusion matters at TSB. We want our colleagues to feel at home here, no matter their background. Diverse teams are what helps us deliver Money Confidence. For everyone. Every day.

Did our job advert catch your eye, but you don't meet all the requirements? Don't let that put you off, if you meet some of the requirements and have an open, curious mindset, we'd love to hear from you!