Senior NFT Tester

We are working with a Tier 1 UK bank undergoing a significant engineering uplift within their Corporate Digital function. As part of this transformation, they are strengthening their Non-Functional Testing capability across their mobile estate to ensure scalability, resilience and production stability at enterprise scale.

This is a senior role focused on performance, load and endurance testing across customer-facing mobile applications. The successful candidate will play a key role in defining performance testing strategy, identifying bottlenecks early in the lifecycle, and working closely with engineering teams to ensure robust and secure releases within a highly regulated environment.

Key Responsibilities:

• Design and implement non-functional testing strategies for mobile platforms
• Develop and execute load, stress and endurance testing scenarios
• Use tools such as JMeter or LoadRunner to simulate real-world traffic and peak usage
• Interpret application behaviour to define appropriate performance test scope
• Conduct root cause analysis on performance issues and collaborate with developers to resolve defects
• Integrate performance testing into CI/CD pipelines
• Identify performance risks and escalate where necessary
• Influence testing standards and contribute to enterprise quality practices

Required Experience:

• Strong hands-on experience in non-functional testing for mobile applications
• Experience with performance testing tools such as JMeter or LoadRunner
• Ability to design and execute large-scale load and stress testing scenarios
• Strong Java knowledge to understand backend application behaviour
• Experience working in enterprise or regulated environments
• Ability to interpret performance results and provide actionable insights

Highly Desirable:

• Experience in banking, fintech or payments
• Exposure to behaviour-driven testing frameworks such as Cucumber
• Experience leading or mentoring testers

Location: Northampton or Knutsford