Hire the Best Software QA Testers
in Colombia

I am a Manual QA Tester with 3 years of experience testing mobile apps, websites, AI-powered products, conversational interfaces, social media platforms, e-commerce solutions, and financial services. I hold a Certificate in Web & Computer Programming from Brigham Young University (BYU), giving me a solid understanding of web technologies, software development concepts, and how applications are built. My experience includes functional, regression, exploratory, usability, UI, onboarding, and content testing. I validate user flows, review application content for grammar, spelling, consistency, and natural language, and deliver clear, well-documented bug reports with actionable feedback. I test iOS applications through TestFlight and Android applications using APK installations across multiple devices, ensuring consistent behavior across platforms. I also have experience evaluating AI-powered and conversational applications, assessing response quality, context accuracy, conversation flows, and interaction consistency to improve the overall user experience. In addition, I have 10 years of experience reviewing undergraduate Industrial Engineering projects written in Spanish, proofreading grammar, spelling, clarity, and coherence. This background has strengthened my attention to detail and my ability to identify language and content issues quickly. As a native Spanish speaker from Colombia with professional English proficiency, I perform testing, localization review, and content validation in both languages. My goal is to help teams deliver reliable, intuitive, and high-quality software that provides an excellent user experience.

I'm a Computer Science student with extensive experience in technology and software-related tasks. I have always been passionate about video games and also have experience handling documentation and technical responsibilities required in different projects. I’m motivated to keep learning, improve my skills, and contribute with both technical knowledge and creativity.

With a background in Engineering, I help businesses test their applications, identify issues, and improve real user experience. I use analytical thinking to detect bugs, validate user flows, and ensure systems work as expected. I have experience testing web, mobile, and desktop applications, including login systems, payment flows, and end-to-end user journeys. I focus on finding issues that affect usability, functionality, and performance. I can help you with: ✔ Manual QA testing (web, mobile, desktop) ✔ Functional and usability testing ✔ Bug reporting with clear reproduction steps ✔ End-to-end flow validation (login, payments, user actions) ✔ Data entry, data cleaning, and structuring ✔ Excel & Google Sheets organization and reporting ✔ Spanish-English localization and translation review I’m detail-oriented and organized, ensuring both software quality and data accuracy. I communicate clearly and deliver reliable results on time. If you need someone who can test your product from a real user perspective while keeping your data clean and well-structured, feel free to reach out. I'm ready to help optimize your product and improve your data quality. Let's discuss your project today!

Hi! I’m Carlos. Need someone to catch the bugs before your users do? That's what I do. I'm a QA Engineer specializing in manual testing, API validation, and test automation. I write clear test cases, hunt down defects, and document them so your developers can fix them fast, then verify everything works before release. * Top Rated · 100% Job Success · 1,500+ hours on Upwork What I can do for you: • Manual testing — functional, regression, smoke, exploratory, cross-browser • API testing — Postman, REST endpoints, status codes, JSON validation, SQL backend checks • Test case design & test plans — structured, clear, traceable • Bug reports — detailed, reproducible, prioritized (Jira, Trello) • Test automation — Selenium + Python scripting • AI & no-code app testing — I test apps built with AI/no-code tools (Replit, Lovable), plus chatbots and automations (Make, Zapier) Tools: Postman, Jira, Selenium, SQL, Chrome DevTools, Git, Google Workspace I'm fast, organized, and easy to work with async. I communicate clearly in English and Spanish (plus conversational German). If you want a tester who understands how software actually breaks, and how to document it so it gets fixed, let's talk.

With over 10 years of experience in QA Testing for video games, I’ve worked with studios around the world to elevate game quality and player experience, from indie projects to LiveOps games with millions of players. I've built QA departments from the ground up, led internal and external testing teams, and designed and executed test plans for projects successfully shipped across platforms like PC (Steam/Epic), Mobile (iOS/Android), Web, and VR (Meta Quest 3s). If you're aiming to deliver a high quality gaming experience, and want a QA partner who can quickly identify issues and optimize player satisfaction, I’m here to help, just as I’ve done for multiple titles already on the market. What I Can Do for You: - Manual QA testing: Functional, Usability, Regression, Integration, Compatibility, Performance. - Platform coverage: Mobile (iOS, Android), PC (Steam/Epic), Web, VR - Detailed bug reports with annotated Repro steps, screenshots and screen recordings - Insightful feedback on gameplay, UX, controls, balancing, and game flow - QA Leadership experience: mentoring testers and building QA pipelines from scratch - Full QA Lifecycle: from early Alpha builds to post-launch and LiveOps support Featured projects available in my portfolio section!

Manual QA Tester with 6+ years of experience ensuring software quality across web, mobile, and enterprise applications. I specialize in business process validation, test strategy, test case design and execution, defect management, and end-to-end testing for business-critical systems, helping organizations reduce risks, improve user experience, and deliver reliable software releases. Most recently, I supported HR and payroll systems for a major banking organization, validating employee lifecycle processes, payroll calculations, integrations, and business rules across SAP SuccessFactors Employee Central and Payroll modules. I executed functional, regression, and integration testing, documented defects in Jira, and contributed to successful releases with no critical production issues. As part of a country-wide SAP SuccessFactors implementation, I contributed to the successful delivery of multiple project releases with zero open defects at deployment, helping ensure a stable production rollout and a high-quality user experience. Throughout my career, I have worked on projects in banking, education, transportation, and business process automation, ensuring software quality through comprehensive test execution, business rule validation, and user experience analysis. I have identified critical defects before production releases, supported end-to-end testing efforts, and collaborated closely with developers, business analysts, and stakeholders to deliver high-quality solutions. My QA services include: -) Functional testing -) Integration testing -) Database testing -) Requirements Validation -) Business Process Analysis -) End-to-End Process Testing -) User Acceptance Testing (UAT) -) Test Case Creation & Execution -) Test strategy and test exit report document creation -) Bug Reporting & Defect Tracking -) Website & Mobile App Testing -) Business Rule Validation -) UI/UX Consistency Testing Tools & Platforms: -) Jira & Xray -) Postman -) SoapUI -) PostgreSQL -) SAP SuccessFactors -) Web & Mobile Applications -) Agile / Scrum Environments -) Bizagi -) Microsoft Office Suite Available for part-time freelance projects, including ongoing QA support, test execution, regression testing, and release validation.