About the Position

We are seeking a Senior Performance Testing Engineer with hands-on experience in JMeter and Dynatrace to ensure the speed, scalability, and stability of our enterprise applications. In this role, you will design complex workload models, execute comprehensive load and stress tests, and leverage advanced APM tools to isolate bottlenecks, monitor infrastructure health, and drive root cause resolution.

Responsibilities

Design, build, and execute performance, load, stress, and soak tests for complex enterprise applications.
Design and execute comprehensive load, stress, and endurance test scenarios using JMeter.
Monitor application performance, system resource utilization, and end-to-end transaction flows using Dynatrace.
Analyze test results and system metrics to diagnose bottlenecks, memory leaks, latency issues, and throughput constraints.
Monitor system, application, database, and server performance during test execution.
Perform root cause analysis (RCA) on performance problems and provide actionable recommendations to architecture and development teams.
Participate in Agile ceremonies and contribute to continuous performance improvements.
Integrate performance testing scripts and monitoring checks into deployment pipelines to support continuous performance validation.

Work Model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 4 days a week in a client or Cognizant office in Toronto, ON. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

Requirements

8+ years of hands-on experience in performance testing & engineering using JMeter and APM tools (Prometheus, Dynatrace, Datadog).
Must have 4+ years of experience in Apache JMeter.
Proficiency in various scripting techniques, develop custom codes for enhancing and customizing performance testing scripts and scenarios using JMeter.
Excellent understanding of concepts like NFR gathering, Workload modelling, Root Cause Analysis of performance problems.
Experience with some of the following technologies and services:
1. Cloud-based Infrastructure as a Service (especially Azure)
2. Container-based service schedulers (e.g., Docker, ECS, Kubernetes, etc.)
3. MySQL, Java, Python
4. Log management tools (Splunk)
Demonstrate excellent Linux fundamentals and solid understanding of diagnosing system utilization.
Experience working with large-scale distributed systems & large data volumes.
Strong analytical and problem-solving skills, with the ability to diagnose performance issues and propose effective solutions.
Experience in developing virtual services using Mountebank to remove backend/third-party dependencies.

Nice to Have

Experience with Chaos Engineering & Observability is nice to have to transition towards an SRE role.
Banking Domain is nice to have.

We Offer

Competitive base salary ranging between CAD 75,000 – 95,000 per year.
Cognizant’s discretionary annual performance-based bonus.
Benefits that support your physical, mental, and financial wellbeing.

About the Company

Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process, and engineering expertise enable us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes, and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or follow us on Twitter.

Additional Employment Information

Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government-issued ID during each interview.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status, or any other characteristic protected by federal, state, or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.

Benefits that Help You Thrive and Grow

Our benefits program is built with you in mind-so you can enjoy a fulfilling, balanced, and healthy life.

Financial Wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, etc.

Physical and Mental Health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program, and more.

Your Career, Your Way

With 350,000+ roles at Cognizant, you’ll have opportunities to explore new technologies, industries, and locations-and build the skills you need to grow your career.

Real-World Impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

Your Path to Cognizant

Here’s what you can expect from our hiring process. Please keep in mind that it may vary by role and location. Explore our FAQs to learn more.

Step 1: Apply to the Right Opportunity

Find an open role that matches your skills and career goals and show us why you’re the person for the job. Don’t see the right opportunity? Consider joining our Talent Community.

Step 2: Connect with Your Recruiter

If one of our recruiters sees a fit, they’ll set up a short intro call to learn more about you and how your experiences and skills match the role.

Step 3: Show Off Your Skills

If you and our team would like to continue the process, you’ll interview with our hiring team. Some roles may also require technical assessments and/or client interviews.

Step 4: Decision Time

Our team will then review each candidate’s potential to succeed in the role. This step may take some time because we want to find the right fit for both you and us-but you can count on us to keep you updated.

When I first joined, I was quiet and hesitant to share my thoughts. The leadership programs and the mentoring I’ve received have helped me find my voice and grow as a leader.

Sujatha Gopalakrishnan

Portfolio Delivery Lead

The entrepreneurial mindset here is infectious. When you take initiative, you get support. What matters the most is showing up and trying.

Senthil Manoj Kumar

Functional Architect

My journey has run parallel to Cognizant’s. When I joined, we were a $1B company with 20,000 people. Today we’re at $20B with 350,000 people. And yet the same sense of belonging has grown stronger.

Vidhya Ganesh

AVP of Delivery Excellence

Cognizant has one of the best learning ecosystems you can ask for. From sponsored certifications to training platforms to mentorship, we have all that we need to grow.

Debashish Mishra

SAP MM Developer

Haven't Yet Found the Right Opportunity?

Get the latest updates on job opportunities, recruitment events, and company news-tailored just for you!

Be in the know

Senior Performance Testing Engineer

Job description