Performance Tester

Performance Tester

Whitehall Resources are currently looking for a Performance tester on a hybrid basis in Berkshire for an initial 6 month contract.

***INISDE IR35***

The Role

An experienced Performance Tester to support the Clients Keystone transformation program, focusing on non-functional validation of billing systems, integrations, and dual run operations. The role involves validating system scalability, response time, throughput, and stability under real-world and peak load conditions to ensure business-critical billing processes operate without performance degradation.

Your responsibilities:

• Analyse performance testing requirements including user load, throughput, transaction volumes, and usage patterns
• Prepare Performance Test Strategy and Test Plan aligned to program milestones
• Design and develop performance test scripts using JMeter and/or LoadRunner
• Execute load, stress, endurance, and volume testing
• Monitor application performance using tools such as Dynatrace, AppDynamics, or Azure Monitor
• Analyse results and identify bottlenecks and system limitations
• Prepare performance reports and tuning recommendations
• Manage performance defects through to resolution
• Support dual run validation ensuring stable billing operations
• Validate high-volume transactions across multiple integrated systems

Essential skills/knowledge/experience:

• 5-10 years of experience in Performance Testing / Non-functional Testing
• Strong experience with JMeter, LoadRunner, or NeoLoad
• Understanding of workload modelling and performance engineering concepts
• Experience in Agile / DevOps environments
• Experience in utilities or billing systems is highly desirable

Desirable skills/knowledge/experience:

• Strong leadership and team management skills
• Excellent communication and stakeholder management
• Ability to work in multi-vendor environment
• Proactive risk management and decision-making

All of our opportunities require that applicants are eligible to work in the specified country/location, unless otherwise stated in the job description.

Whitehall Resources are an equal opportunities employer who value a diverse and inclusive working environment. All qualified applicants will receive consideration for employment without regard to race, religion, gender identity or expression, sexual orientation, national origin, pregnancy, disability, age, veteran status, or other characteristics.