Sakif Sezan

About Sakif Sezan

Senior QA Automation Engineer / SDET with 9+ years of experience delivering enterprise-scale test automation across energy, automotive, retail, and high-traffic e-commerce platforms. Led automation for complex web, API, and backend systems using Selenium, Playwright, Cypress, Java, Python, and C#, validating end-to-end business workflows, microservices, and data pipelines. Designed and maintained scalable automation frameworks, integrated CI/CD pipelines, and executed cross-browser, multi-device, and API-first testing strategies to improve release confidence and reduce regression cycles. Strong contributor in Agile environments, partnering with developers and product teams on requirement clarity, defect RCA, and testability improvements. Proven impact stabilizing pipelines, reducing flaky tests, improving automation coverage, and supporting reliable releases across regulated, retail, and cloud-native enterprise systems.Strong collaborator in Agile/Scrum environments, known for optimizing automation pipelines, identifying defects early, and ensuring every build meets quality standards. Focused on delivering high-quality, production-ready software through continuous improvement and a smart automation strategy.

Experience

1. Senior Qa Engineer

   ConocoPhillips

   Jan 2025 — Present · Houston, TX, US

   I worked as a Senior QA Engineer/SDET responsible for requirement analysis, test strategy design, and hands-on automation development. I designed and enhanced scalable automation frameworks using Selenium, Cypress, Playwright, Java, C#, and TestNG, covering UI, API, and backend validations. A significant part of my contribution involved building reusable C# automation libraries for configuration management, logging, reporting, and test data handling to ensure framework consistency across environments.I implemented API automation using RestSharp, HTTP Client, Postman, and SoapUI to validate service contracts, authentication flows, payload transformations, and backend integrations. These validations ensured accurate data movement between microservices, batch jobs, and downstream systems. I also executed extensive SQL-based backend validations to verify data integrity, transformations, and processing logic across enterprise databases.A key contribution was integrating automation suites into CI/CD pipelines using Jenkins, GitHub Actions, and GitLab CI. This enabled continuous regression execution, gated deployments, and faster feedback cycles. I optimized flaky tests by improving synchronization, handling asynchronous behavior, and implementing resilient locator strategies. I also applied JavaScript linting and code-quality rules to automation repositories to improve maintainability and long-term scalability.This project focused on validating large-scale, enterprise-grade energy systems supporting upstream and downstream business workflows across web, API, and backend layers. The application ecosystem consisted of. NET-based web portals, REST/SOAP services, background batch jobs, and database-driven integrations operating in cloud and hybrid environments. The primary objective was to ensure release stability, regulatory compliance, and performance reliability while accelerating delivery through automation-first quality engineering.