
Subramanyam Reddy Kowluru
Verified Expert in Engineering
Quality Analyst and Developer
London, United Kingdom
Toptal member since June 8, 2026
Subramanyam is a software quality engineer with 18+ years of experience in delivering high-quality, reliable, and user-focused software across diverse domains. His expertise spans manual testing, automation exposure, API testing, database testing, and emerging AI testing practices, with a strong track record in Agile/Scrum environments. He brings deep proficiency in end-to-end testing, including functional, regression, integration, smoke, sanity, UAT, API, and database testing.
Portfolio
Experience
- Manual Software Testing - 18 years
- Defect Management - 18 years
- Database Testing - 18 years
- Website Testing - 15 years
- Postman - 10 years
- Jira Xray - 10 years
- API Testing - 10 years
- Mobile App Testing - 6 years
Preferred Environment
Mobile App Testing, Database Testing, API Testing, Website Testing, Jira Xray, Defect Management, Agile, Open Banking, Manual Software Testing, Quality Assurance (QA)
The most amazing...
...projects I've worked on involved requirement analysis, test strategy and planning, test scenario design, and detailed test case creation.
Work Experience
Test Analyst, QA Manager
SmartWork
- Performed end-to-end testing of wealth management web and mobile applications, ensuring high-quality releases across multiple platforms.
- Led and mentored a team of two QA engineers, providing guidance on test planning, execution, defect management, and overall testing activities.
- Utilized AI-powered tools by creating effective prompts and validating the accuracy and quality of generated results.
- Worked extensively with QA and project management tools, including Jira, Confluence, TestRail, Jira Xray, MongoDB, and Postman for test management, defect tracking, database validation, and API testing.
- Conducted requirement analysis and collaborated closely with business analysts and product owners to clarify requirements and define test strategies.
- Developed comprehensive test plans, test strategies, test scenarios, and detailed test cases to ensure complete functional coverage.
- Executed various testing activities, including test execution, defect identification, defect reporting, retesting, and defect lifecycle management.
- Facilitated product demonstrations for new features and enhancements, actively participated in retrospective meetings, and contributed to continuous process improvements.
- Prepared and maintained key project documentation, including Definition of Done (DoD) documents and release notes.
- Performed cross-browser compatibility testing using BrowserStack and validated iOS mobile applications across multiple devices and operating system versions.
Quality Analyst, Manager QA
Hexaware Technologies
- Performed end-to-end testing of wealth management web and mobile applications, ensuring high-quality releases across multiple platforms.
- Led and mentored a team of two QA engineers, providing guidance on test planning, execution, defect management, and overall testing activities.
- Utilized AI-powered tools by creating effective prompts and validating the accuracy and quality of generated results.
- Worked extensively with QA and project management tools, including Jira, Confluence, TestRail, Jira Xray, MongoDB, and Postman for test management, defect tracking, database validation, and API testing.
- Conducted requirement analysis and collaborated closely with business analysts and product owners to clarify requirements and define test strategies.
- Developed comprehensive test plans, test strategies, test scenarios, and detailed test cases to ensure complete functional coverage.
- Executed various testing activities, including test execution, defect identification, defect reporting, retesting, and defect lifecycle management.
- Facilitated product demonstrations for new features and enhancements, actively participated in retrospective meetings, and contributed to continuous process improvements.
- Prepared and maintained key project documentation, including Definition of Done (DoD) documents and release notes.
- Performed cross-browser compatibility testing using BrowserStack and validated iOS mobile applications across multiple devices and operating system versions.
Lead QA, QA Tester
Hamilton Capital Holding Limited
- Conducted functional testing, integration testing, smoke testing, sanity testing, regression testing, and system testing to ensure application stability, reliability, and performance.
- Performed cross-browser compatibility testing using BrowserStack and validated iOS mobile applications across multiple devices and operating system versions.
- Prepared and maintained key project documentation, including Definition of Done (DoD) documents and release notes.
- Facilitated product demonstrations for new features and enhancements, actively participated in retrospective meetings, and contributed to continuous process improvements.
- Executed various testing activities, including test execution, defect identification, defect reporting, retesting, and defect lifecycle management.
- Developed comprehensive test plans, test strategies, test scenarios, and detailed test cases to ensure complete functional coverage.
- Conducted requirement analysis and collaborated closely with business analysts and product owners to clarify requirements and define test strategies.
- Worked extensively with QA and project management tools, including Jira, Confluence, TestRail, Jira Xray, MongoDB, and Postman for test management, defect tracking, database validation, and API testing.
- Utilized AI-powered tools by creating effective prompts and validating the accuracy and quality of generated results.
- Led and mentored a team of two QA engineers, providing guidance on test planning, execution, defect management, and overall testing activities.
Senior Quality Assurance
Union Maritime
- Performed cross-browser compatibility testing using BrowserStack and validated iOS mobile applications across multiple devices and operating system versions.
- Facilitated product demonstrations for new features and enhancements, actively participated in retrospective meetings, and contributed to continuous process improvements.
- Developed comprehensive test plans, test strategies, test scenarios, and detailed test cases to ensure complete functional coverage.
- Worked extensively with QA and project management tools, including Jira, Confluence, TestRail, Jira Xray, MongoDB, and Postman for test management, defect tracking, database validation, and API testing.
- Led and mentored a team of two QA engineers, providing guidance on test planning, execution, defect management, and overall testing activities.
- Performed end-to-end testing of wealth management web and mobile applications, ensuring high-quality releases across multiple platforms.
- Conducted requirement analysis and collaborated closely with business analysts (BAs) and product owners to clarify requirements and define test strategies.
- Executed various testing activities, including test execution, defect identification, defect reporting, retesting, and defect lifecycle management.
- Prepared and maintained key project documentation, including Definition of Done (DoD) documents and release notes.
Software Quality Analyst
SmartWork
- Became proficient with integration, functional, non-functional, UAT, and regression testing.
- Obtained experience in preparing test plans, test estimations, test strategies, test scenarios, test scripts, test cases, test data, defect management, test analysis, and test summary reports.
- Performed compatibility testing by using BrowserStack.
- Gained good working experience on mobile debugging tools like Charles Proxy and Android Studio.
- Worked extensively with QA and project management tools, including Jira, Confluence, TestRail, Jira Xray, MongoDB, and Postman for test management, defect tracking, database validation, and API testing.
- Performed end-to-end testing of wealth management web and mobile applications, ensuring high-quality releases across multiple platforms.
- Prepared and maintained key project documentation, including Definition of Done (DoD) documents and release notes.
Principal Software QA
Anthology
- Gained expertise in Script development, execution, and maintenance with Selenium WebDriver.
- Leveraged Agile Scrum, Waterfall, and V-Model methodologies.
- Performed compatibility testing by using BrowserStack.
- Prepared test plans, test estimations, test strategies, test scenarios, test scripts, test cases, test data, defect management, test analysis, and test summary reports.
- Obtained exposure to all stages of the software development lifecycle (SDLC) and the software testing lifecycle (STLC).
- Coordinated with the offshore and onshore team to discuss the product requirement, provide the daily updates, and demo the completed product feature in every sprint.
Senior Software Test Engineer
Tomax India Software Pvt. Ltd.
- Worked extensively with QA and project management tools, including Jira, Confluence, TestRail, Jira Xray, MongoDB, and Postman for test management, defect tracking, database validation, and API testing.
- Conducted requirement analysis and collaborated closely with business analysts (BAs) and product owners to clarify requirements and define test strategies.
- Developed comprehensive test plans, test strategies, test scenarios, and detailed test cases to ensure complete functional coverage.
- Executed various testing activities, including test execution, defect identification, defect reporting, retesting, and defect lifecycle management.
- Facilitated product demonstrations for new features and enhancements, actively participated in retrospective meetings, and contributed to continuous process improvements.
- Conducted functional testing, integration testing, smoke testing, sanity testing, regression testing, and system testing to ensure application stability, reliability, and performance.
Experience
1FS Wealth Platform and Mobile App
I performed functional, integration, smoke, regression, retesting, and UAT activities to ensure product quality. I validated REST APIs using Postman and verified back-end data integrity through MongoDB. I identified, tracked, and managed defects throughout the SDLC, collaborating closely with development and business teams for timely resolution. I provided feature demonstrations to stakeholders and contributed to release planning by preparing release notes, and ensured smooth production releases.
IntApp Time, MODO Enterprise App, and iManage (DMS)
I prepared QA deliverables, including test strategy, test plans, test scenarios, and test cases, aligned with business requirements. I also executed functional, integration, smoke, sanity, regression, retesting, and UAT testing to ensure application quality and stability. I performed API testing using Postman to validate endpoints, responses, and data integrity.
I prepared daily and weekly status reports highlighting progress, risks, and updates for management and stakeholders, and contributed to release management by preparing release notes and supporting deployment activities. I leveraged AI tools to analyze requirements and generate test scenarios and test cases, improving test coverage and efficiency.
Himalaya Exchange, Himalaya Trading
I performed cross-browser and cross-device testing using BrowserStack to ensure application compatibility and responsiveness across environments. I created and maintained QA artifacts, including test strategy, test plans, test scenarios, and detailed test cases aligned with business requirements. I designed, executed, and updated comprehensive test suites to ensure full functional coverage and application quality. The project also involved conducting functional, integration, smoke, sanity, regression, retesting, and UAT testing to validate end-to-end system behavior.
Education
Master's Degree in Computer Science
Sri Venkateswara University - Tirupati, India
Bachelor's Degree in Mathematics, Physics, and Statisics
Sri Venkateswara University - Kadapa, India
Certifications
CTFL ISTQB Certified Tester Foundation Level v4.0
ISTQB
Certified Scrum Master
Scrum Alliance
Foundation Level Extension, Agile Tester
ISTQB
Skills
Libraries/APIs
REST APIs, React Native Testing Library
Tools
Postman, Jira Xray, Jira, TestRail, Confluence, SoapUI, REST Assured, Xcode, WebdriverIO, Cucumber
Languages
XML, SQL, Java
Frameworks
React Native, Selenium
Paradigms
Agile, Manual Testing, Functional Testing, Sanity Testing, Software Testing, Scrum, User Acceptance Testing (UAT), Agile Project Management, Azure DevOps, Testing, Acceptance Testing, E2E Testing, User Testing, Automated Testing, Behavior-driven Development (BDD), Automation, Test Automation
Platforms
Zephyr Scale, Windows, Android, iOS, Mobile, Web, Drupal
Storage
Database Testing, Oracle SQL, MongoDB, PostgreSQL, JSON, FlatFile, Microsoft SQL Server
Other
Manual Software Testing, Mobile App Testing, API Testing, Website Testing, Defect Management, Computer, Statistics, Scrum Testing, Test Planning, Testing Strategy, Test Scenarios, Test Case Creation, Test Case Execution, Defect Logging, Demos, Sprint Retrospectives, Sprint Planning, Regression Testing, Smoke Testing, Test Case Design, Bug Life Cycle Management, Software Development Lifecycle (SDLC), Software Testing Lifecycle (STLC), Boundary Value Analysis (BVA), Equivalence Partitioning (EP), Risk-based Testing, API Testing Basics, Root-cause Analysis (RCA), Scrum Framework Implementation, Sprints, Sprint Ceremonies, Daily Stand-ups Facilitation, Sprint Reviews, Retrospective Management, Backlog Grooming, Prioritization, Agile Coaching, Team Mentoring, Cross-functional Team Collaboration, Stakeholder Communication, User Story Refinement, Conflict Resolution, Impediment Management, Release Planning, Delivery Coordination, Quality Control (QC), Open Banking, Status Reporting, Trading, Trading Bots, TradingView, Cryptocurrency, Cryptocurrency Trading, Estimations, Waterfall, WCFStorm, Analysis, Reviews, Training, Integration, Quality Assurance (QA), User Experience (UX), Manual QA, Website QA, Agile QA, QA Process, QA Testing, Software QA, QA Leadership, QA Documentation, Beta Testing, Exploratory Testing, Test Cases, Back-end, Bug Fixes, Documentation, eCommerce, UI Testing, Web Technologies, API Integration, Problem Solving, Reporting, Log Analysis, Mobile Apps, Fintech, APIs, Integration Testing, AI Testing, Testing Services, Web Service Testing, UX Testing, GUI Testing, Cross-browser Testing, QA Automation, WCAG 2, Web Content Accessibility Guidelines (WCAG), Troubleshooting, Requirements, SDET, Frameworks
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