Sai Sankar
Software Test Engineer
About
Results-driven Software Test Engineer with 3+ years of hands-on experience in manual and mobile testing, now specialising in AI/ML Testing — one of the fastest-growing QA disciplines globally. During a self-directed upskilling period (Sep 2025–Present), independently discovered 13 real production bugs across live apps including 3 Critical-severity security vulnerabilities (jailbreak bypass, mosaic-effect extraction, multimodal inconsistency). Proficient in API Testing with Postman, security testing, bias/hallucination testing, and AI-assisted test case generation. ISTQB® Certified with deep Facility Management domain expertise and strong Agile/Scrum background. Available immediately for Trivandrum or Remote roles.
Skills & Expertise (43)
Work Experience
Career Break — AI Testing Upskilling
Self-Directed
Sep 2025 - Present
Cleared ISTQB® Foundation Level (CTFL) certification — globally recognised QA standard. Completed intensive self-directed AI Testing training covering prompt testing, bias, hallucination, security testing, API testing with Postman, and performance testing. Discovered 13 real production bugs across 5 live apps with full documentation — 3 Critical-severity findings including security vulnerabilities and a multimodal AI inconsistency. Built a professional AI Testing portfolio: Excel bug reports, Postman collections with automated scripts, and a complete test case library (21 cases) generated using AI-assisted techniques.
Software Test Engineer
Zlink Software Systems
May 2022 - Aug 2025
Identified and reported 2000+ defects across web and Android platforms — near-zero critical bug escapes to production across 3+ years. Designed and executed 400+ test cases covering functional, regression, smoke, sanity, and exploratory testing across multiple sprint releases. Performed end-to-end testing on Zlink App and zOne App — enterprise FM platforms with complex modules: Portfolio Management, Space Assignment, Work Orders (SR & PM), Assets, Inventory, and RPM. Conducted cross-browser testing (Chrome, Firefox, Edge) and Android mobile testing across multiple device screen sizes. Created and maintained RTM ensuring 100% test coverage; collaborated with devs, BAs, and POs to resolve ambiguities early. Participated in full Agile/Scrum cycle — sprint planning, daily standups, reviews, and retrospectives. Received Spot Recognition Award for outstanding defect identification and product quality contribution.
Education
Bachelor of Engineering – Computer Science - Anna University
2015 - 2019 · Afghanistan
Certifications
AI Testing — Self-directed intensive training
· 2025
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Not Open to Relocation
Skills (43)
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