Manual QA Engineer (Web)

We are looking for a Manual QA Engineer (Web) to join our team. This project focuses on the development, modernization, and quality assurance of our client web applications built with React, supported by a BFF layer that connects the frontend experience with backend services and third-party integrations.

The Manual Web QA Engineer will support web quality assurance activities across customer-facing eCommerce flows, ensuring functionality, stability, usability, integration quality, and release readiness across browsers, devices, environments, and business-critical scenarios.

The role requires strong experience in manual web testing, test case design, defect reporting, regression testing, environment validation, API/BFF validation support, and close collaboration with frontend developers, backend/BFF teams, automation QA, product teams, and other QA stakeholders.

Essential functions

• Perform manual testing of web applications built with React
• Review business and functional requirements and identify testing scope
• Design, prepare, maintain, and execute test cases, checklists, and test scenarios
• Execute functional, regression, smoke, exploratory, integration, and end-to-end testing
• Validate web application behavior across browsers, devices, operating systems, and responsive breakpoints
• Test key eCommerce flows such as account, login, registration, cart, checkout, payment, order management, search, product details, promotions, loyalty, and user profile flows
• Validate frontend behavior, UI states, form validation, error messages, redirects, session handling, cookies, and browser storage
• Validate integration between React frontend, BFF layer, backend APIs, and third-party services
• Use browser developer tools to inspect network calls, console errors, request/response payloads, cookies, local/session storage, and frontend issues
• Use Postman and similar tools to support API and BFF validation
• Identify, document, and track defects with clear reproduction steps, expected/actual results, screenshots, videos, logs, network details, and supporting evidence
• Collaborate closely with frontend developers, BFF/backend developers, product owners, automation QA, DevOps, and other QA teams
• Support release validation and certification activities across QA, Stage, and Production-like environments
• Prepare and manage test data required for web test execution
• Participate in test planning, estimation, daily coordination, defect triage, and release readiness discussions
• Provide clear QA status updates, risks, blockers, and testing progress reports
• Contribute to continuous improvement of web QA processes, test coverage, regression scope, and release quality

Qualifications

• +6 years of experience in Web Manual QA Engineering
• Strong understanding of web testing principles, methodologies, and best practices
• Experience testing modern frontend applications built with React
• Good understanding of frontend behavior, browser compatibility, responsive design, session handling, cookies, caching, redirects, and client-side validation
• Experience with functional, regression, smoke, exploratory, integration, and end-to-end testing
• Ability to analyze business, functional, and non-functional requirements and translate them into clear test scenarios and test cases
• Experience creating, maintaining, and executing test cases in test management tools such as qTest
• Hands-on experience with cross-browser and responsive web testing
• Ability to validate web applications across different browsers, screen sizes, operating systems, and network conditions
• Experience with defect reporting, defect lifecycle management, and clear communication of issues to development teams
• Experience using browser developer tools for troubleshooting frontend issues, console errors, network requests, cookies, storage, and performance indicators
• Familiarity with API testing using Postman
• Ability to validate frontend integration with the BFF layer and backend services
• Understanding of request/response behavior, status codes, payload validation, API contracts, and error handling
• Familiarity with tools such as Charles Proxy or similar network inspection tools is a plus
• Experience preparing and managing test data for web testing scenarios
• Good understanding of release validation, environment certification, and production readiness checks
• Strong analytical and problem-solving skills
• Excellent communication and collaboration skills within cross-functional teams
• ISTQB Foundation Level knowledge or equivalent practical understanding is considered a plus

We offer

• Flexible working hours (full-time).
• One "Flex Day" off per month – eligible after six months with the company.
• 10 business days of vacation.
• Swiss Medical health coverage.
• 100% remote work.
• Access to Udemy and Platzi for professional training.
• Employee Assistance Program (financial, nutritional, psychological support, etc.).
• Fully covered English classes during working hours.
• Discounts on Club de Beneficios and Samsung products.
• Birthday day off.

About us

Mobile Computing is joining Grid Dynamics (NASDAQ: GDYN), a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.