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IMCS Group • Markham, Ontario, Canada
Role & seniority: Senior Performance Test Engineer (Mid-Senior level), Contract
Stack/tools: Performance testing; JMeter; k6; API testing; Java; JavaScript; TypeScript; CI/CD exposure; cloud-based perf testing (nice-to-have)
Design, develop, and execute performance, load, stress, endurance, and scalability tests; lead test planning and reporting
Develop and maintain performance test scripts in JMeter and k6; perform API performance testing and backend validation
Analyze results, identify bottlenecks, provide tuning recommendations; collaborate with DevOps/production support; support release readiness; drive framework/process improvements
10+ years of testing experience with focus on performance/non-functional testing
Hands-on expertise with JMeter and k6; strong API performance testing
Proficient in Java, JavaScript, or TypeScript
Strong understanding of performance testing strategies, planning, execution, and reporting
Experience in fast-paced, high-velocity delivery with frequent production releases; excellent communication and stakeholder management
Java EE performance optimization/tuning
Experience with CI/CD pipelines and cloud-based performance testing
Integrating performance tests into automated pipelines; familiarity with monitoring/profiling tools (APM, logs, metrics)
Location & work type: Location not specified; Contract; Industry: Banking and Financial S
Job Title: Senior Performance Test Engineer
Experience: 10+ Years
Primary Skills: Performance Testing, JMeter, k6, API Testing
Secondary Skills: Java, JavaScript, TypeScript Role Overview We are seeking a highly experienced Senior Performance Test Engineer with deep expertise in performance and load testing to support fast-paced, high-availability systems with frequent production releases. The ideal candidate will bring strong technical hands-on skills, strategic testing mindset, and excellent communication abilities to ensure system scalability, stability, and reliability. Key Responsibilities Design, develop, and execute performance, load, stress, endurance, and scalability tests for enterprise applications Lead performance testing strategy, test planning, test case design, execution, and reporting Develop and maintain performance test scripts using JMeter and k6 Perform API performance testing and backend validation for high-volume systems Analyze performance test results, identify bottlenecks, and provide tuning recommendations Collaborate closely with development, DevOps, and production support teams in fast-paced CI/CD environments Support applications with daily production releases, ensuring performance stability and release readiness Prepare detailed performance reports and present findings to technical and non-technical stakeholders Drive continuous improvement of performance testing frameworks, tools, and processes Essential Skills & Qualifications 10+ years of overall testing experience, with strong focus on performance and non-functional testing Extensive hands-on expertise with JMeter and k6 Strong experience in API performance testing Solid programming knowledge in Java, JavaScript, and/or TypeScript
Seniority level Mid-Senior level Employment type Contract Job function Information Technology Industries Banking and Financial Services