Senior SQA Engineer

Performed end-to-end manual, regression, exploratory, integration, and device testing for POS devices and enterprise web applications.
Developed and maintained UI automation scripts using WebdriverIO (TypeScript) to improve regression efficiency.
Executed REST API testing using Postman, validating business logic, authentication, error handling, and Payment Gateway transaction workflows.
Performed API security validation, including HMAC authentication, BOLA, IDOR, and API Rate Limiting testing.
Reverse engineered Android APKs using JADX to analyze application resources, identify endpoints, and support security-focused testing.
Investigated production issues using Grafana, Loki, and Sisense, collaborating with Product, Engineering, and DevOps teams to support reliable software releases.