Senior Software Developer in Test

• C# and JavaScript/TypeScript, you write production-quality code and you know it

• Azure DevOps, GitHub and CI/CD pipeline design and optimisation

• Microsoft Dynamics and Power Platform

• API and integration testing across complex enterprise systems

• Experience in regulated or enterprise environments strongly valued

What You’ll Be Doing

• Defining and evolving automation engineering standards across the team

• Designing framework architecture and driving improvements to tooling and execution

• Writing high-quality, well-structured code that sets the bar for the team

• Influencing testing strategy across squads and delivery programmes

• Leading proof-of-concept work and supporting transformation initiatives

• Actively mentoring and coaching junior and mid-level engineers, helping them level up technically and professionally

• Driving measurable quality improvements across delivery practices

Some engineers want to follow the process. Others want to define it. If you’re the kind of SDET who sees a broken quality approach and immediately starts thinking about how to fix it, this role was written for you., * Deep automation experience, you’ve designed frameworks from scratch, not just used them

• Strong coding ability in C# or JavaScript/TypeScript, your code is clean, readable and built to last

• Proven experience mentoring engineers at junior or mid level, you take that responsibility seriously

• Strong understanding of CI/CD, engineering maturity and delivery quality

• Experience in enterprise or regulated environments

• A track record of lifting team capability, not just your own output

• Confident communicator at every level, from engineer to senior stakeholder

• Someone who anticipates risks before they become problems

• Banking or financial services experience is highly advantageous, * Are you authorised to work in the UK without restriction for the next 2 years (min)?

Loupe Testware is building a quality engineering team from the ground up. Around 15 hires, structured into squads, over the next 6 to 12 months. Senior SDETs won’t just contribute to that. They’ll lead it.

The Opportunity

We’re working with a major private banking institution on a significant engineering transformation programme. The quality engineering function is being built to a high standard: modern automation frameworks, clean and maintainable codebases, clear engineering standards, and a genuine focus on delivery confidence.

As a Senior SDET, you’ll define what good looks like. You’ll set the automation standards the team builds against, design the frameworks others rely on, and write code that’s as much a benchmark as it is a solution. You’ll also be expected to bring people with you. Mentoring mid and junior engineers isn’t a nice-to-have here. It’s central to the role.

You’ll collaborate directly with leadership and client stakeholders, influence how quality is embedded across delivery, and help shape the culture of a team that’s still being formed.

This is a rare opportunity to join at the moment of building. The decisions you make here will shape the team, the practices and the culture for years to come. As the function grows, senior engineers who prove themselves will have a clear path into lead and principal-level roles.

Technology Environment

• Modern automation frameworks, Playwright and Selenium at scale