QA Engineer – Web Applications (MERN & Cloud)
Kyokan Infotech Pvt. Ltd. • Kolkata, West Bengal, India
Role & seniority: QA Engineer (hands-on, end-to-end ownership); contract-based, 3 months with potential extension
Stack/tools: MERN stack; web/mobile QA; REST API testing; GCP/AWS; CI/CD (nice-to-have)
Top 3 responsibilities
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Quality assurance and testing: create test cases, perform functional/regression/integration/UAT testing; ensure bug-free, production-ready releases; document QA results
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Collaboration: reproduce issues with MERN developers; verify fixes; maintain QA reports; identify risks and quality improvements
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Cloud/deployment support: assist with GCP/AWS environments, deployment, monitoring, scaling; coordinate CI/CD/environment changes/releases
Must-have skills
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3+ years QA/testing web/mobile apps
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Strong test-case/test-scenario writing; API testing (REST) and modern web apps
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Familiarity with GCP or AWS; experience in agile/startup contexts
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Good communication and ownership mindset
Nice-to-haves
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CI/CD pipeline experience
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MERN stack experience
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Performance or security testing experience
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Startup/consulting background
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Agile/Scrum familiarity; basic Japanese (optional)
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Location & work type: Hybrid (Remote + onsite at Kolkata office); Full-time, 3-month contract starting mid-February 2026; extension possible based on performance and project scope
Full Description
Location: Hybrid (Remote + Onsite at Kolkata Office)
Duration: Full-Time, 3-Month Contract
Start Date: Mid-February 2026 ※ Possibility of extension of contract based on performance & project requirements
About the Role We are looking for a hands-on QA Engineer who can take end-to-end ownership of testing & quality of web/mobile applications, while also supporting cloud infrastructure and application scalability.
This role is ideal for someone who has worked in startup or agile environments, enjoys wearing multiple hats, and is comfortable working closely with MERN stack developers.
This is a contract-based role for 3 months (full-time) with the possibility of extension of contract based on performance & project requirements.
Key Responsibilities
- Quality Assurance & Testing
- Understand business and technical requirements and convert them into detailed test cases and test scenarios
- Perform functional, regression, integration, and UAT testing
- Ensure web/mobile applications are bug-free and production-ready
- Validate that delivered features meet client expectations and requirements
- Work closely with MERN stack developers to reproduce issues and verify fixes
- Maintain proper QA documentation and reports
- Proactively identify risks, gaps, and quality improvements
- Cloud & Deployment Support(GCP/AWS)
- Assist in maintaining and modifying GCP/AWS environments
- Support deployment, monitoring, and scaling of web applications
- Help optimize infrastructure based on traffic and performance needs
- Coordinate with developers for CI/CD, environment changes, and releases
Required Skills & Experience 3+ years of experience in QA/Testing of web/mobile applications Strong experience in writing test cases and test scenarios Experience testing REST APIs and modern web applications Familiarity with GCP or AWS environments Understanding of agile / startup workflows Good communication skills and ownership mindset
Preferred (Nice to Have) Hands-on experience with CI/CD pipelines Experience working with MERN stack applications Exposure to performance or security testing Prior experience in startup or consulting companies Familiarity with Agile/Scrum methodology Basic understanding of Japanese language
Contract Terms
Type: Full-time, 3-months contract
Work Mode: Hybrid (Remote + Onsite at Kolkata Office)
Compensation: Competitive (based on experience and skill level)
Possibility of Extension: Based on performance and project scope Show more Show less
