Performance Tester

Reading, Oxfordshire
DCV Technologies

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 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.

Your Profile

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

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