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Added 11 days ago
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Added 15 days ago
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Added 11 days ago
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Added 18 days ago
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Added 21 days ago
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Senior Data Platform Engineer - Zonda - Toronto, ON
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Added 11 days ago
Senior Software Developer, AI
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We're looking for a Senior Software Developer who can help transform AI opportunities into production-ready systems, partner with stakeholders across the business, and accelerate TextNow's…
Added 11 days ago
Senior Performance Testing Engineer
Cognizant
Toronto, ON
$75,000 to $95,000 CAD / year
Full-time
Added 17 days ago
Developer - Data, AI, Platform & Support
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Experience with SQL, NoSQL, Python , Spark/PySpark, Scala.
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Added 16 days ago
Co-op or Intern, Data & Analytics (January 2027)
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Calgary, AB · Vancouver, BC · Halifax, NS · Oakville, ON · Ottawa, ON · Toronto, ON · Montreal, QC
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…asset. Technologies include but are not limited to Core SQL, Python, SQL Azure, Azure Data Lake, Azure Data Factory, Azure Databricks, and Apache…
Added 1 month ago
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…GoldSim, AutoCAD Civil 3D, GIS, HEC-HMS/HEC-RAS, Power BI, Python, Deswik, Muk3D or similar software.• Strong analytical, communication, project management, and organizational skills.•…
Added 15 days ago
Senior Data Analyst
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Added 20 days ago
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Added 17 days ago
Quantitative Developer (Alpha Research Team) - GAM, Summer 2027 (Co-op/Internship) - 12 months
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Toronto, ON · FCP
Full-time
Programming: Working proficiency in Python and SQL, supported by coursework, internships, co-op experience, research, or personal projects.

Cognizant

Senior Performance Testing Engineer

Toronto, ON, Canada

Pay: $75,000 to $95,000 CAD / year
Job type: Full-time
Apply by: Oct 19, 2026
Posting language: English
Posted: Sep 19, 2026

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Original job description

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.

In this role, you will

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 though our various wellbeing programs.

Note: The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What You Need To Have To Be Considered

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:
Cloud based Infrastructure as a Service (especially Azure)
Container based service schedulers (e.g., Docker, ECS, Kubernetes, etc.)
MySQL, Java, Python
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.

These will help you stand out

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

We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.

Total Compensation

We regularly assess market data to ensure we offer a competitive compensation package for our associates. The base salary for this position ranges between CAD 75,000 – 95,000 per year. Where the successful candidate may fall within the range depends on relevant education, work and/or management experience and other business-related and job-necessary qualifications. This position is also eligible for Cognizant’s discretionary annual performance-based bonus, as well as benefits that support your physical, mental and financial wellbeing.

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More about this job

Responsibilities

Design, build, and execute comprehensive performance, load, and stress tests for complex enterprise applications using JMeter and Dynatrace. Analyze system metrics to identify bottlenecks, perform root cause analysis, and provide actionable recommendations to development teams.

Requirements

Requires 8+ years of hands-on experience in performance testing and engineering with proficiency in JMeter and APM tools. Candidates must possess strong analytical skills and experience with cloud infrastructure, Linux, and distributed systems.

Skills

JMeter
Dynatrace
Performance testing
Load testing
Stress testing
Root cause analysis
Workload modeling
Linux
Java
Python
Azure
Kubernetes
Splunk
Mountebank
Agile
Observability

Benefits

Performance-based bonus
Wellbeing programs
Health benefits

Visa sponsorship

Not detected in the job text

Keywords

Performance Testing
JMeter
Dynatrace
Load Testing
Stress Testing
Endurance Testing
APM
Prometheus
Datadog
Azure
Docker
Kubernetes
MySQL
Java
Python
Splunk
Linux
Mountebank
Chaos Engineering
Observability
SRE
Banking Domain
Agile
Root Cause Analysis
Workload Modelling
NFR Gathering
Distributed Systems
Infrastructure as a Service

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