QA
Selenium Python Automation
A comprehensive web automation framework built with Selenium and Python, using advanced locator strategies and the Page Object Model.
Python 3.x
Selenium WebDriver
pytest- +1
Open to new opportunities
CTFL certified
CTFL certifiedHello, I'm
Subrata KumarBhowmik
RoleSQA LeadTest Automation SpecialistWeb Developer
I help teams build confidence in every release through strategic QA, practical automation, and a relentless focus on software quality.
When someone does you wrong, stay calm and composed. In anger, you may lose control and do things you never intended. Don't waste your energy defending yourself or seeking revenge. Stay silent, keep your dignity, and leave final judgment to God. He sees what others don't.
Tools I work with every day
- Python
- Selenium
Playwright
Appium- pytest
Postman
JMeter
Locust
About
About me
I'm Subrata Kumar Bhowmik, a Software Test Lead with more than fifteen years of experience in manual and automated testing. I'm an ISTQB-certified professional focused on backend APIs, databases, UI and performance testing for web and mobile applications. Python, Selenium and Appium are my daily tools for delivering robust, dependable products.
I spent over a decade at Samsung R&D Institute Bangladesh, where I led automation, test management and process optimisation. My experience spans black-box testing, web automation, API and web-service automation, tool configuration and setting up test processes against industry best practice.
I'm a strong team player, recognised for collaborating effectively with local and offshore teams. Software testing is my profession; web development is my passion. I've independently built several production-grade web projects that run with minimal maintenance.
Core competencies
Test AutomationAPI TestingPerformance TestingQA StrategyCI/CDPython with SeleniumPython with PlaywrightAppiumPostmanJMeterCTFL certified
Python with SeleniumPython with PlaywrightAppiumPostmanJMeterCTFL certifiedProducts I helped test
15+
Years of experience
50+
Projects delivered
10+
Automation Projects
Services
What I do
Testing depth plus hands-on development, with quality that ships, not just reports.
Testing services
06Functional TestingRequirement-driven testing that verifies every workflow, including the edge cases nobody planned for.
- Validate requirements against test cases and acceptance criteria.
- Triage defects, prioritise fixes and track them to resolution.
- Cover end-to-end workflows and the edge cases that break releases.
- Report pass/fail rates and defect density to stakeholders.
- Keep testing aligned with ISO 29119 and internal standards.
Performance TestingKnow how your product behaves at peak load before your users find out.
- Define non-functional requirements for response time and scale.
- Design peak, stress and endurance load models.
- Identify CPU, database and memory bottlenecks.
- Automate load scenarios with JMeter and Locust.
- Recommend capacity and infrastructure upgrades.
API TestingContract, security and performance checks for the layer your product depends on.
- Verify OpenAPI/Swagger contracts for consistency.
- Automate API tests with Postman and pytest in CI/CD.
- Validate auth, encryption and OWASP API Top 10 risks.
- Check payload integrity and error handling.
- Benchmark latency, throughput and error rates.
UX TestingUsability and accessibility testing that removes friction instead of documenting it.
- Apply Nielsen heuristics and WCAG accessibility checks.
- Measure task success and satisfaction with SUS.
- Work with designers to fix friction points.
- Test responsiveness across devices and viewports.
- Run A/B tests for feature decisions.
Mobile TestingReal devices, real networks and real interruptions, the way users actually run your app.
- Cover iOS and Android versions, screen sizes and devices.
- Test real conditions: network, interruptions and offline.
- Ensure Google Play and App Store compliance.
- Monitor battery, memory and launch time.
- Assess data leaks and root-detection risks.
Game TestingPlayability, performance and fairness checks across the whole game loop.
- Evaluate mechanics, difficulty and playability.
- Verify audio-visual sync, physics and story flow.
- Stress-test matchmaking, lobbies and multiplayer sync.
- Hunt cheats, exploits and progression skips.
- Validate translations and cultural fit.
Development services
03App DevelopmentCross-platform mobile apps built to be tested, released and maintained.
- Cross-platform apps for Android and iOS.
- Native and hybrid builds with modern frameworks.
- REST APIs, authentication and push notifications.
- Publish and maintain apps on both stores.
- QA-driven releases with automated checks.
Web DevelopmentFast, accessible websites that stay easy to maintain long after launch.
- Responsive, production-ready websites and web apps.
- Front-end with HTML, CSS, TypeScript and REST APIs.
- CI/CD deployment with minimal maintenance.
- Performance, accessibility and clean code.
- Real projects live in production today.
Custom Tools DevelopmentSmall, focused utilities that remove the repetitive parts of QA.
- Internal QA utilities and automation accelerators.
- CLI tools, dashboards and browser extensions.
- Python tooling around ADB, Appium and REST APIs.
- Packaged and documented for quick team adoption.
- Maintained as the test stack evolves.
Skills
My toolkit
Tools and techniques I use daily to keep releases predictable.
Languages
2+ years
C70%
C++60%Python70%AI / ML
Essential for modern QA
AI Test Generation70%Prompt Engineering80%ML Test Analytics60%Backend Testing
3+ years
API Testing90%
Database Testing70%Frontend Testing
4+ years
Web100%
Mobile80%Performance Testing
2+ years
JMeter70%Locust80%Security Testing
3+ months
OWASP ZAP50%Fiddler50%Miscellaneous
Ongoing
Git90%
Docker70%
Excel80%
PowerPoint70%Experience
The journey so far
Fifteen years across QA leadership, automation and process improvement.
Work
2010 - 2026- 2024 - 2026
Sr. Chief Engineer
Samsung R&D Institute Bangladesh
Cross-platform QA for Tizen OS across Smart TV, Raspberry Pi and web, with daily smoke, OS compatibility and API validation.
Test PlanningTest AutomationAPI Testing - 2022 - 2024
Chief Engineer
Samsung R&D Institute Bangladesh
In-app purchase, localization and Smart TV streaming QA, plus US market release readiness and app certification.
Software QualityLocalizationRelease Readiness - 2020 - 2022
Technical Lead
Samsung R&D Institute Bangladesh
Guided team workload and test planning, and set testing guidelines, quality standards and automation direction.
PythonAPI TestingTeam Leadership - 2019 - 2020
Lead Engineer
Samsung R&D Institute Bangladesh
Planned and tracked multi-project test schedules, and built automated coverage for phones and web browsers.
PythonLeadershipTest Automation - 2017 - 2019
Sr. Software Engineer
Samsung R&D Institute Bangladesh
End-to-end mobile release testing for parental-control and diagnostics apps, collaborating daily with US teams.
Mobile QARelease TestingDefect Management - 2015 - 2017
Software Engineer
Samsung R&D Institute Bangladesh
Tested e-commerce checkout and partner apps across Android and iOS, covering functional and regression cycles.
E-commerceAndroidiOS - 2013 - 2015
Junior Engineer
Samsung R&D Institute Bangladesh
Hands-on testing of feature phones and early touchscreens, with systematic UI checks and clear defect reports.
Manual TestingUI TestingTest Cases - 2011 - 2013
Associate Engineer
Samsung R&D Institute Bangladesh
Built early mobile QA experience across Samsung feature-phone and app releases, with structured defect reporting.
Manual TestingDefect Reporting - 2010 - 2011
IT Officer
Ocean Group Ltd.
Handled IT support and systems operations before moving into software quality engineering.
IT SupportSystem Operations
Education
2000 - 2024B.Sc. in Computer Science & Engineering
Sonargaon University
2022 - 2024CGPA 3.84
Diploma in Computer Engineering
Cumilla Polytechnic Institute
2005 - 2009GPA 3.30
Secondary School Certificate
Yusuf M.T. High School, Cumilla
2000 - 2005GPA 4.38
ISTQB CTFL (2024) · CTAL-TMin progress
Projects
Selected work
Automation frameworks, production web apps and tools built to solve real problems.
29 projects
Showing 9 of 29
QA
Appium Mobile Automation
Cross-platform mobile test automation for Android and iOS, built on Appium and Python with native app support.
- Appium
- Python
XCUITest- +1
QA
Playwright Python Automation
An end-to-end browser testing framework built with Playwright and Python, running fast and reliably in headless CI pipelines.
- Python
- Playwright
- pytest
- +1
Web
Personal Portfolio Website
This portfolio is a theme-aware static site built for speed, accessibility and easy maintenance.
Astro
Tailwind CSS
TypeScript- +1
Web
Fintech Web Application
A financial technology web app with interactive dashboards and data visualisation that turns raw numbers into decisions.
- HTML5
CSS3
JavaScript- +2
Web
App
AI / ML
Test Failure Prediction
A machine-learning model that predicts likely test failures from historical runs and code changes to target regression effort.
- Python
scikit-learn
pandas- +1
Case study coming soon
Tools
Could not load projects. Please try again.
Awards
Recognition & certifications
Recognition from Samsung R&D and professional bodies, plus certifications I am working toward.
Certifications
02ISTQB CTFL: Certified Tester Foundation Level
International Software Testing Qualifications Board
Achieved
ISTQB CTAL-TM: Advanced Level Test Manager
Advanced test management certification
In progress
60%
Awards & recognition
09Achieved
Achieved
Achieved
Achieved
Achieved
Best Contributor
Samsung Research Bangladesh
Jan 2024
View certificate
Achieved
Membership Certificate
Institution of Diploma Engineers, Bangladesh
16 May 2011Membership no. 33696
Scholarship
University Scholarship
Sonargaon University
2022 - 2024
Achieved
Achieved
Certificate of Completion
CodeChef
Feb 2026
View certificate
PlannedUpcoming
IELTS
British Council / IDP
Planned
Upcoming
Contact
Let's build something reliable
Whether it is testing strategy, automation or a web project, I would be glad to help.
Available for work
Have a project in mind?
Tell me what you are building and where quality needs to improve. I will get back with a clear plan.
Available for work
Open to freelance projects and full-time opportunities.
Usually replies within 24 hours
Dhaka, BangladeshISTQB CTFL
Phone
+88 01818 224947GitHub
@sdotbhowmikLocation
Dhaka, Bangladesh