Performance Engineer

Performance Engineer Division: Defence Division Job Type: Contract/Interim Contact Phone: 01782 203040 Salary: Negotiable Location: South West Ref #: 03/03 - PerfEng Post Date: 03-03-2026 11:05 AM Apply Direct Performance Engineer 6 Month contract initially + Extensions Based: Hybrid - 2-3 days onsite in Swindon Rate: £Market rates p/d - (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Performance Engineer to join the team. The ideal candidate will have experience with containerised environments (Docker, Kubernetes) and microservices performance testing. * Knowledge of database performance tuning (SQL, NoSQL). * Exposure to security and compliance considerations in performance engineering * load, stress, scalability, and endurance testing to evaluate system behaviour under different conditions Key Responsibilities; * Data Analysis, Capacity Planning, Performance Metrics, and Scalability Testing. Ability to analyse system performance metrics, identify trends, and recommend improvements. * Workload Modelling : Extracting data from production environments to understand user behaviour and system usage patterns .Designing performance test scenarios that mimic real-world usage, including peak loads and typical user interactions and continuously analysing test results and adjusting workload models to ensure accuracy and relevance * Database Management: Strong understanding of database performance tuning, indexing, and query optimization * Programming Skills: Knowledge of any programming languages such as Python, or any other language for scripting and automation * Problem-Solving: Strong analytical and problem-solving skills to diagnose and resolve performance issues * Performance Testing: Proficiency in performance testing tools like LoadRunner, JMeter, and Gatling to simulate user load and identify bottlenecks. Key Skills & experience: * Docker, Kubernetes, SQL, DevOps. CI/CD. * JMeter, LoadRunner, or Gatling. * Monitor and analyse system performance using APM tools such as New Relic, Dynatrace, AppDynamics, or Splunk Desirable skills/knowledge/experience: * Design, develop, and execute performance test plans, scripts, and scenarios * using tools like JMeter, LoadRunner, or Gatling. * Identify performance bottlenecks, conduct root cause analysis, and suggest * optimisations for software applications, databases, and infrastructure. * Work closely with development, DevOps, and infrastructure teams to ensure * performance best practices are integrated into the software development * lifecycle (SDLC). * Monitor and analyse system performance using APM tools such as New Relic, * Dynatrace, AppDynamics, or Splunk.