We are seeking an experienced Senior Performance Engineer for our client with 7+ years of hands-on expertise to drive our end-to-end performance engineering and reliability strategy. In this role, you will lead large-scale testing initiatives, architect workload models, and diagnose performance bottlenecks across complex, cloud-native environments. If you thrive on deep-dive root cause analysis and modern observability practices.

Key Responsibilities

- End-to-End Performance Strategy: Lead performance testing and engineering across large-scale distributed systems, from NFR gathering and workload modeling to execution and Root Cause Analysis (RCA).
- Scripting &
- Tooling:

Design and optimize customized JMeter test scripts, developing custom code to handle complex scenarios and synthetic user journeys.
- Observability &
- Diagnostics: Leverage APM tools (Prometheus, Dynatrace, Datadog) and log management platforms (Splunk) to monitor, analyze, and optimize system utilization.
- Environment &
- Data Management: Collaborate with Test Data Management teams to establish data strategies and utilize service virtualization tools (Mountebank) to decouple dependencies.




- Cross-Functional Leadership: Partner with Agile software development, DevOps, and business stakeholders to communicate performance insights and drive system improvements.

Qualifications &
- Requirements

- Experience: 7+ years of hands-on experience in Performance Testing &
- Engineering.
- Core Tech Stack: Advanced mastery of JMeter, solid Linux fundamentals, and proficiency in Java or Python.
- Monitoring &
- Observability: Hands-on experience with APM tools (Datadog, Dynatrace, Prometheus) and Splunk.
- Infrastructure &
- Data: Working knowledge of cloud infrastructure (Azure), container orchestration (Docker, Kubernetes, ECS), and relational databases (MySQL).
- Methodology: Proven track record in Agile environments, with excellent documentation, problem-solving, and communication skills.

Nice-to-Haves

- Experience with Chaos Engineering and SRE principles.
- Knowledge of client-side performance testing tools and framework integration.
- Experience with Service Virtualization.

📌 Senior Performance Engineer (Toronto)
🏢 SCRU Technologies
📍 Toronto