Muhammad Sufian

Senior Software Quality Assurance Engineer with 6+ years of experience in manual and automation testing across web, mobile, and REST APIs for SaaS, ecommerce, healthcare, fintech, CRM, and ERP platforms. Expert in building scalable automation frameworks with Cypress and Playwright (JavaScript). Strong in cross-browser testing (Chrome, Firefox, Safari, Edge) and mobile browsers (Safari iOS, Chrome Android), with hands-on mobile app and responsive testing on real devices, emulators, and simulators.

Experienced in performance testing and optimization using Google Lighthouse, Core Web Vitals, and API response-time analysis. Early adopter of AI-augmented QA, using ChatGPT, Claude, and GitHub Copilot to accelerate test case design, test data generation, automation scripting, and defect analysis. Proficient in Agile/Scrum, SDLC, STLC, defect lifecycle management, release validation, and production testing.

QA Specialist at AR Proactive (2026-01 – Present)

• Perform end-to-end QA for a healthcare SaaS platform (Accounts Receivable, Revenue Cycle Management, patient billing, payment collection) — functional, regression, integration, exploratory, smoke, sanity, and UAT across Chrome, Firefox, Safari, and Edge, with responsive validation on mobile browsers and devices.
• Validate patient billing workflows including statement uploads, invoice generation, account balances, payment links, payment processing, automated follow-ups, autopay, and payment plans.
• Test configurable workflow automation (tasks, ownership, due dates, notifications, completion rules) and verify EMR integrations and data synchronization for billing, patient, invoice, and payment data.
• Perform API and database validation covering request/response data, status codes, business rules, error handling, and payment records; use AI tools (ChatGPT, Claude) to generate edge-case scenarios and test data.
• Improved platform reliability by identifying critical defects in patient balances, billing, payments, and permissions; support stable releases through regression testing, production sanity checks, and post-deployment validation.

Senior SQA Engineer at Sunhub | Oxiliry (2024-11 – 2025-12)

• Owned end-to-end QA for the Sunhub customer platform and internal Sales Portal — test planning, execution, defect management, and release validation, with cross-browser and responsive checks on desktop and mobile browsers.
• Created and maintained test cases, scenarios, suites, test data, and requirement traceability; validated system integrations, data flow, and role-based access control for customers, managers, sales teams, administrators, and clients.
• Conducted API testing verifying backend workflows, request/response data, status codes, business validations, and error handling, monitoring API response times during release validation.
• Designed and implemented a Cypress automation framework from scratch (JavaScript, reusable components, fixtures, custom commands) and automated onboarding workflows, improving automation coverage by ~30%.
• Reduced manual regression effort by automating high-risk, business-critical workflows; tracked defects in Jira and supported release sign-off, production smoke testing, and post-deployment validation.
• Improved release stability as primary quality owner for onboarding and access control, catching integration and role-based access defects before production.

Senior Software Quality Engineer at Devsinc (2022-02 – 2024-12)

• Developed and maintained UI automation frameworks with Cypress and Playwright for ecommerce and payroll systems, automating product search, cart, checkout, payment processing, payroll calculation, payslip generation, and approvals.
• Performed functional, regression, integration, cross-browser, and responsive testing across Chrome, Firefox, Safari, and Edge on desktop, tablet, and mobile devices, including mobile browser validation on iOS and Android.
• Ran Google Lighthouse performance audits on ecommerce storefronts, tracking Core Web Vitals and page-load metrics and reporting performance regressions for optimization.
• Validated ecommerce functionality (pricing, discounts, promotions, orders, payments, customer accounts) and payroll features (employee records, attendance, salaries, allowances, deductions, taxes, payslip accuracy).
• Reported and tracked defects in Jira and Asana; collaborated with developers, product managers, designers, and business teams across Agile sprint planning, standups, backlog refinement, and release validation.
• Reduced test execution time by 40% through improved automation strategies and framework optimization; identified and resolved 95% of critical defects during early development and regression stages.
• Mentored junior QA engineers, reviewed test cases and automation scripts, and introduced QA best practices that raised team productivity and testing standards.

E-commerce Executive / Support (SQA) at GLXParts (2019-01 – 2022-01)

• Performed end-to-end manual QA for a Shopify-based ecommerce business across the DTC website and the Fuego mobile app on iOS and Android.
• Tested homepage campaigns, Product Listing Pages, and Product Detail Pages — pricing, compare-at pricing, discounts, variants, images, and purchasing options — plus bundles and Build Your Own Bundle from selection through checkout, verifying pricing consistency across PLP, PDP, Quick Shop, cart, and checkout.
• Performed responsive and cross-browser testing (Chrome, Firefox, Safari) on desktop, mobile, and tablet, including mobile browsers, to confirm layouts, menus, banners, and content rendered correctly.
• Tested US and international storefronts across six languages (Spanish, French, German, Italian, Japanese, Korean), verifying localized content, currency, pricing, promotions, and availability.
• Identified critical pricing, promotional, content, and localization issues before they reached customers, supporting successful product launches and campaigns through regression coverage and QA approval.

Bachelor of Science in Computer Science – COMSATS University (2016 – 2020)