Subrata Kumar Bhowmik's Portfolio

About me

I'm Subrata and I've knowledge on

Hello, I am a professional Software Test Lead with more than decade of experience in manual as well as automated testing. I am ISTQB certified professional focusing on backend API, database, UI and performance testing of web and mobile applications. I am proficient in Python, Selenium, and Appium which enable me to deliver robust and dependable software products.

Currently employed to leading technology company that dominates the mobile phone industry. I am responsible on automation, test management and process optimization. I have experience in Blackbox Testing, Web Automation, API/WebService Automation, Testing Tool Configuration, Test Process Setup as per industry best practices.

A strong team player, I’ve been recognized for my ability to collaborate effectively with both local and offshore teams. Passionate about workflow optimization, I strive to create efficient, productive, and high-performing work environments.

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My Services

Functional Testing

Validate requirements against test cases and acceptance criteria.
Triage defects, prioritize fixes, and track to resolution.
Ensure end-to-end coverage of user workflows and edge cases.
Report critical metrics (pass/fail rates, defect density) to stakeholders.
Maintain compliance with testing standards (e.g., ISO 29119).

Performance Testing

Define non-functional requirements (response times, scalability).
Design load models (peak/stress/endurance) and test environments.
Identify bottlenecks (CPU, DB, memory) and drive optimizations.
Automate scenarios using tools like JMeter or LoadRunner.
Recommend infrastructure upgrades based on capacity limits.

API Testing

Verify API contracts (OpenAPI/Swagger) for consistency.
Automate tests (Postman/RestAssured) with CI/CD integration.
Validate security (auth, encryption, OWASP API Top 10).
Ensure data integrity in payloads and error handling.
Benchmark performance (latency, throughput, error rates).

UX Testing

Apply usability heuristics (Nielsen) and accessibility (WCAG).
Measure task success rates and user satisfaction (SUS).
Collaborate with designers to fix pain points.
Test responsiveness across devices/viewports.
Facilitate A/B tests for feature optimization.

Mobile Testing

Cover devices/platforms (iOS/Android versions, screen sizes).
Test real-world conditions (network, interruptions, offline).
Ensure app store compliance (Google Play/Apple guidelines).
Monitor resource usage (battery, memory, launch time).
Assess security risks (data leaks, root detection).

Game Testing

Evaluate playability (mechanics, difficulty, fun factor).
Verify immersion (audio-visual sync, physics, story flow).
Stress-test multiplayer (matchmaking, sync, lobbies).
Prevent exploits (cheats, progression skips, duping).
Validate localization (translations, cultural compliance).

My skills

C

70%

C++

60%

Python

70%

API Testing

90%

Database Testing

70%

Web

100%

Mobile

80%

Jmeter

70%

Locust

80%

Zed Attack Proxy (ZAP)

50%

Fiddler

50%

GIT

90%

Docker

70%

Excel

80%

Power point

70%

Education

Work

Bechelor in Engineering (CSE)

World University of Bangladesh
CGPA: Dropout

2013 - 2017

Diploma In Computer Engineering

Cumilla Ploytechnic Institute
GPA: 3.30

2005 - 2009