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Job Description & How to Apply Below
Role: Performance Tester
Work Model & Location: Hybrid - 2-3 day onsite in Reading
Duration: 6 Months+
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.
Our client, working with a British multinational energy company who are a constituent of the FTSE 100 Index are seeking an experienced Performance Tester to support the Keystone transformation program, focusing on non-functional validation of billing systems, integrations, and dual run operations.
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 Load Runner
- Execute load, stress, endurance, and volume testing
- Monitor application performance using tools such as Dynatrace, App Dynamics, 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.
Your Profile
Essential skills/knowledge/experience:
- 5 10 years of experience in Performance Testing / Non-functional Testing
- Strong experience with JMeter, Load Runner, or Neo Load
- Understanding of workload modelling and performance engineering concepts
- Experience in Agile / Dev Ops environments
- Experience in utilities or billing systems is highly desirable
Key Deliverables
- Performance Test Strategy and Plan
- Test Scripts and Workload Models
- Execution Reports and Dashboards
- Bottleneck Analysis and RCA
- Performance Test Summary and Sign-off Report
Desirable skills/knowledge/experience:
- Strong analytical and problem-solving skills
- Excellent communication and stakeholder management
- Ability to work in multi-vendor environments
- Proactive risk identification and mitigation
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