Hire the Best Mobile App Testers
in Brazil

Hi, I'm Ludmila Ivo, your go-to QA tester and problem-solver! I love breaking things (in a good way) to make sure they work perfectly. With a sharp eye for detail, I dig deep into apps and platforms to uncover bugs, spot areas for improvement, and ensure a smooth user experience. Here’s what I bring to the table: ✅ QA Testing & UX Insights – I test web and mobile apps across different industries (games, education, social media, e-commerce, finance, and more). If there's a flaw, I'll find it! ✅ Translation & Localization – English ⇄ Brazilian Portuguese translations with a natural, culture-friendly approach. ✅ Tech-Savvy & Detail-Oriented – Experienced with tools like Jira, Trello, Notion, Slack, HubSpot, and more. ✅ Payment Systems Expertise – Familiar with Brazilian methods like PIX, boleto, Mercado Pago, and PayPal. I’m proactive, curious, and always looking for ways to improve the user experience. Let's work together to make your project better! 🚀

With 97+ completed projects and $10K+ earned on Upwork, I bring hands-on QA testing experience across mobile and web platforms; iOS, Android, and desktop. I specialize in functional testing, regression testing, exploratory testing, and localization QA. I test on real devices (not emulators), which means bugs I catch are bugs that actually affect your users. My device lab: • Android 10 – Xiaomi Redmi 8 • Android 14 – Motorola Edge 30 • Android 16 – Samsung Galaxy A16 5G • Android 16 – Xiaomi Poco F8 Pro • iOS 26.5 – iPhone 12 • iPadOS 26.5 – iPad 11th Gen • Windows 11 – Laptop • Smart TV – WebOS & Android TV Beyond testing, I’m also a native Brazilian Portuguese speaker and professional EN↔PT-BR translator, which makes me especially valuable for localization testing and translation QA on apps targeting Brazilian users. I also contribute to AI training projects, evaluating LLM responses, writing prompts, and assessing content quality with a tester’s eye for detail.

Manual QA Tester from Brazil focused on games, websites, and mobile/desktop applications. Experienced in identifying bugs, usability issues, interface inconsistencies, navigation problems, and performance issues across different platforms. I have experience with exploratory testing, functional testing, UI/UX validation, and detailed QA reporting with screenshots, reproduction steps, and clear feedback to help improve product quality and user experience. I also create organized reports and help teams identify problems efficiently while maintaining clear communication and attention to detail throughout the testing process. I’ve worked with different workflows and always pay close attention to quality, deadlines, and user experience.

I am a bilingual freelancer specializing in English ↔ Portuguese translation, app testing, quality assurance, and user experience feedback. I focus on delivering translations that preserve not only meaning, but also tone, context, and natural flow, ensuring content feels accurate and authentic rather than simply translated word-for-word. I have experience working with documents, written content, and text adaptation between English and Portuguese, paying close attention to clarity, grammar, readability, and cultural nuances. Whether the project involves general documents, app content, game text, user-facing material, or written communication, I aim to produce translations that sound natural to native speakers while maintaining the original intent. Alongside translation work, I have developed strong skills in app testing and quality assurance. I am highly detail-oriented and effective at identifying issues, analyzing user experience, and delivering organized feedback that helps improve products and services. I perform especially well in game testing and player-focused feedback. I can analyze gameplay mechanics, progression systems, balance, usability, and overall user engagement from both a technical and player perspective. I also bring a creative approach to projects and enjoy contributing ideas for features, mechanics, systems, and improvements for apps and games. I value clear communication, reliability, and delivering work that creates practical results. Skills: • English ↔ Portuguese translation • Document and text localization • App testing & Quality Assurance (QA) • Game testing & structured feedback • Bug reporting and usability analysis • User experience feedback • Creative ideation for apps and games • Attention to detail and problem solving

I am a civil engineer with experience in medium and large projects. I have been working with financial reporting for over 4 years, in addition to having a lot of experience with customer service, market research and application testing.

Software Tester | Quality Assurance | Project Manager | Web & Mobile Tester 🎯 6 years + working as a Manual Tester. Worked at Brazilian companies, including government agencies. Specialist in the iGaming market, working in the field since 2022. 🤝 I offer a range of services including: - Manual testing - Web application testing - Android / IOS - Mobile application testing - Functional/non-functional testing - Reporting and tracking defects - Creation of effective reports - Web application testing - Creation and development of test cases - Translation & Localization - Local Payment Systems Expertise Graduated in Social Sciences at the Federal University of Santa Maria, Brazil. Working as a freelancer since 2018. ✍️ Certifications: LINKEDIN LEARNING: • Essentials for Administrative Assistants by Microsoft and LinkedIn • Microsoft Power BI Data Analyst • Improve Your Professional Communication Skills in English • Wordpress Fundamentals • Power Apps: Basic Training • Trello: Basic Training • Master the Main Tools for Productivity • Windows 11: Basic Training • How to Measure and Report Sales Performance • Programming Fundamentals: APIs and Web Services • Cybersecurity Knowledge: Terminologies • Fundamentals of Remote Work • Fundamentals of Digital Marketing ES SET CERTIFICATE: • 75/100 - C2 FLUENT MICROSOFT: • Microsoft Power BI Data Analyst • Microsoft PL-300 Exam Preparation and Practice • Preparing Data for Analysis with -Microsoft Excel • Creative Designing in Power BI • Deploy and Maintain Power BI Assets and Capstone project • Data Modeling in Power BI • Extract, Transform and Load Data in Power BI • Harnessing the Power of Data with Power BI • Data Analysis and Visualization with Power BI GOOGLE: • Foundations of Cybersecurity • Play It Safe: Manage Security Risks • Foundations: Data, Data, Everywhere IBM: • Introduction to Open Source • Data Science Tools • Data Science Methodology • Data Science 101 • What is Data Science? • Introduction to Data Analytics TABLEAU: • Introduction to Tableau • Data Visualization with Tableau UNIVERSITY OF MICHIGAN: • The Future of Payment Technologies UNIVERSITY OF PENNSYLVANIA: • FinTech: Foundations, Payments, and Regulations •Wordpress •Clickup •Wix •Trello •Zapier •Asana •Hubspot •Slack •Monday •Microsoft Office •CRM •Power Apps •Canva •Notion •Evernote •Microsoft SharePoint •Zoom •Google Suite •Meet •Google Drive •Googel Docs •Thrive •Shopify