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Senior QA specialist with 10+ years of experience delivering end-to-end QA for large, complex, business-critical enterprise and Ontario Public Sector systems. Specializes in manual and automated testing of data-driven applications, including functional, integration, regression, UAT, and accessibility testing across GUI and non-GUI environments. Proven ability to define test strategies, develop master test plans, create detailed test cases and test data, and execute structured testing activities throughout Agile and Waterfall SDLCs. Experienced in data validation, backend testing, SQL-based verification, and API/service testing to ensure business-critical systems meet design, compliance, and performance requirements. Strong background in mentoring junior QA members, collaborating with cross-functional teams, and improving QA processes, ensuring release readiness and high-quality product delivery.…Senior QA specialist with 10+ years of experience delivering end-to-end QA for large, complex, business-critical enterprise and Ontario Public Sector systems. Specializes in manual and automated testing of data-driven applications, including functional, integration, regression, UAT, and accessibility testing across GUI and non-GUI environments. Proven ability to define test strategies, develop master test plans, create detailed test cases and test data, and execute structured testing activities throughout Agile and Waterfall SDLCs. Experienced in data validation, backend testing, SQL-based verification, and API/service testing to ensure business-critical systems meet design, compliance, and performance requirements. Strong background in mentoring junior QA members, collaborating with cross-functional teams, and improving QA processes, ensuring release readiness and high-quality product delivery.

Alexander Kalantarov

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Senior QA specialist with 10+ years of experience delivering end-to-end QA for large, complex, business-critical enterprise and Ontario Public Sector systems. Specializes in manual and automated testing of data-driven applications, including functional, integration, regression, UAT, and accessibility testing across GUI and non-GUI environments. Proven ability to define test strategies, develop master test plans, create detailed test cases and test data, and execute structured testing activities throughout Agile and Waterfall SDLCs. Experienced in data validation, backend testing, SQL-based verification, and API/service testing to ensure business-critical systems meet design, compliance, and performance requirements. Strong background in mentoring junior QA members, collaborating with cross-functional teams, and improving QA processes, ensuring release readiness and high-quality product delivery.…Senior QA specialist with 10+ years of experience delivering end-to-end QA for large, complex, business-critical enterprise and Ontario Public Sector systems. Specializes in manual and automated testing of data-driven applications, including functional, integration, regression, UAT, and accessibility testing across GUI and non-GUI environments. Proven ability to define test strategies, develop master test plans, create detailed test cases and test data, and execute structured testing activities throughout Agile and Waterfall SDLCs. Experienced in data validation, backend testing, SQL-based verification, and API/service testing to ensure business-critical systems meet design, compliance, and performance requirements. Strong background in mentoring junior QA members, collaborating with cross-functional teams, and improving QA processes, ensuring release readiness and high-quality product delivery.

Available to hire

Senior QA specialist with 10+ years of experience delivering end-to-end QA for large, complex, business-critical enterprise and Ontario Public Sector systems. Specializes in manual and automated testing of data-driven applications, including functional, integration, regression, UAT, and accessibility testing across GUI and non-GUI environments.
Proven ability to define test strategies, develop master test plans, create detailed test cases and test data, and execute structured testing activities throughout Agile and Waterfall SDLCs. Experienced in data validation, backend testing, SQL-based verification, and API/service testing to ensure business-critical systems meet design, compliance, and performance requirements.
Strong background in mentoring junior QA members, collaborating with cross-functional teams, and improving QA processes, ensuring release readiness and high-quality product delivery.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Senior Performance Engineer at Thales

January 1, 2025 - Present

Developed and maintained Selenium WebDriver automation frameworks using Java and TestNG, improving regression coverage by 43% and reducing manual test cycles. Integrated automated tests into Jenkins CI/CD pipelines and GitHub repositories, streamlining release processes and ensuring faster feedback loops. Executed end-to-end, load, and performance tests using LoadRunner and JMeter; identified and resolved bottlenecks that improved system response time by 20%. Managed AWS EC2 cloud test environments, optimizing test infrastructure usage and lowering cloud costs by 20%. Generated detailed performance reports with actionable metrics using New Relic and Linux monitoring tools to support release readiness assessments.

Senior QA Automation Engineer at Ontario Public Service (OPS)

May 1, 2022 - December 1, 2024

Built and enhanced automation test frameworks using Selenium, Java, and TestNG, increasing regression efficiency by 30% and reducing repetitive manual testing. Designed and executed automation test suites for web and GIS applications, improving reliability across regression and smoke cycles and reducing production defects by 25–30%. Integrated automation into Azure DevOps CI/CD pipelines for continuous validation of builds and deployments. Conducted functional, integration, API, and system testing for Azure-hosted and GIS applications. Performed AODA/WCAG 2.0 accessibility testing using NVDA and PAC tools, ensuring compliance with provincial digital standards. Collaborated with Agile teams to align automation deliverables with project milestones and accelerate delivery. Reduced defect resolution time by up to 50% through structured lifecycle tracking and close coordination with developers and business teams.

Performance Test Engineer at TD Bank

May 1, 2021 - May 1, 2022

Executed integration, regression, and performance testing using LoadRunner and JMeter for high-traffic insurance applications. Developed and maintained automated LoadRunner scripts, improving execution reliability under peak load conditions. Conducted backend validation and messaging functionality tests, ensuring accurate transactional workflows. Collaborated in Agile sprints to align test objectives with development priorities, reducing rework and improving test efficiency by 25%. Logged and tracked defects using JIRA and Confluence, maintaining complete traceability and audit documentation.

Senior Performance Test Engineer at Finastra

August 1, 2017 - April 1, 2021

Led end-to-end performance and stress testing of Finastra DES MSFAA/eCert applications supporting government financial assistance programs, ensuring scalability and reliability under peak user loads. Developed, executed, and maintained performance test scripts using LoadRunner, StormRunner, JMeter, Postman, and SOAPUI for API, UI, and backend batch processes. Designed distributed load testing strategies simulating realistic user concurrency across multiple geographic locations to validate system capacity and response times. Analyzed performance data using AppDynamics and SQL Server Management Studio to profile application behavior and database query efficiency. Managed and restored mainframe database backups for consistent and repeatable test data setup, increasing test reliability by 50%.

Performance Test Lead at TD Bank

April 1, 2016 - August 1, 2017

Provided Unit, Functional, Integration, System, Regression, Load, Stress, Stability, Capacity and User Acceptance testing of TD Bank applications and infrastructure projects. Analyzed NFRs and recommended testing strategies. Delivered Performance Test Strategy and Test Plan documents. Created and maintained performance test scripts and data interfaces, and coordinated with CRM vendor and development teams. Led knowledge sharing and tracked tasks in JIRA.