Sachi Sk's

Results-driven QA Test Analyst with 3+ years of experience in Payments, Fintech, and Healthcare domains. Specialized in

Manual Testing, API Testing (REST/Postman), ETL Testing, Regression Testing, and Selenium-based Test Automation using a Hybrid Framework.

Hands-on expertise in EMV 3DS Core/SDK certification testing, NPCI qSPARC validations, ISO 8583 message validation,

UPI/IMPS transaction flows, and end-to-end payment transaction lifecycle (authorization, authentication, settlement). Adept at shift-left testing practices and integrating quality gates into CI/CD pipelines via Jenkins.

Proven track record: executed 900+ test cases, validated 200+ REST APIs, tracked 100+ defects in JIRA, reduced production defect leakage by 20%, and cut regression execution time by 40%. Experienced in Agile/Scrum environments with hands-on BDD/Cucumber and Gherkin scripting.

Payments & Certification Testing

Oct 2022 – Dec 2025

• Led test planning and execution of 900+ functional and regression test cases for POS and SoftPOS devices, achieving full compliance with NPCI qSPARC certification standards and zero critical defects at go-live.
• Engineered end-to-end validation of the full payment transaction lifecycle — authorization, authentication, and settlement — across UPI, IMPS, and card-based payment environments, directly improving merchant transaction success rates.
• Performed integration testing between issuer, acquirer, and directory server systems, ensuring seamless EMV 3DS transaction processing; validated ISO 8583 message formats across all transaction types.
• Executed EMV 3DS Core & SDK protocol testing to secure cardholder authentication across issuers and acquirers;

analyzed 3DS server logs and API responses using shift-left testing practices, reducing UAT debugging time by 30%.

• Configured and tested real-time Payment Gateway scenarios for high-volume transaction loads, improving system stability and reducing failure rates in production-equivalent environments.
• Identified security vulnerabilities and data integrity issues across payment flows using OWASP-aligned test strategies,

reducing production defect leakage by 20%.

API & ETL Testing

• Spearheaded REST API certification testing for FIU, FIP, AA, and TSP entities under the Ayushman Bharat Digital

Mission (ABDM/Sahamati) ecosystem; validated 200+ API transactions using Postman and RestAssured, ensuring compliance, data accuracy, and interoperability.

• Designed and executed SQL queries and data validation scripts for ETL testing, ensuring database integrity and accurate data transformation across upstream and downstream systems.
• Developed and validated ABHA card and patient data workflows ensuring regulatory compliance, data integrity, and correct response schema adherence.
• Drove API test strategy across the development lifecycle using shift-left testing principles, surfacing critical defects in early sprints and improving overall system reliability before SIT and UAT phases.

Defect Management & Team Collaboration

• Logged and tracked 100+ defects in JIRA (Zephyr) with structured severity classification; led defect triage process improvements that reduced average resolution time by 25% and achieved a high defect closure rate before each certification cycle.
• Partnered with developers, business analysts, and EMVCo certification teams to streamline delivery pipelines,

reducing cross-team handoff delays and achieving on-time milestone completion across all certification cycles.

• Coached 2–3 junior QA engineers in test case design, defect lifecycle management, and STLC best practices,

improving team throughput and reducing rework in sprint reviews.

• Authored comprehensive test plans, test strategies, test cases, and EMVCo/regulatory compliance reports, serving as the primary QA documentation owner across three major project streams.

Bachelor of Engineering in Computer Science