Hire the Best Mobile App Testers
in Brazil

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'm currently pursuing a Bachelor's degree in Information Systems at Fluminense Federal University and have fluent English, native Brazilian Portuguese, and international work experience in the United States. I provide reliable virtual assistance and administrative support, while also having hands-on experience testing mobile apps and websites. I’m detail-oriented, organized, and comfortable following instructions, identifying issues, and delivering accurate work. Services: • Virtual Assistance • Administrative Support • Mobile App and Website Testing • Data Entry • Email Management • AI Data Collection & Data Annotation Why choose me? ✓ Fluent English & Brazilian Portuguese ✓ International work experience in the US ✓ Strong communication and organizational skills ✓ Detail-oriented and accurate ✓ Reliable, responsive, and committed to deadlines ✓ Analytical and problem-solving skills I'm committed to delivering accurate work, clear communication, and reliable results!

Need to know what your users will actually experience before your product goes live? I’m a QA Tester specializing in mobile, web, exploratory, regression, functional, and localization testing. I test on real devices (not emulators) across Android, iOS, iPadOS, Windows, and Smart TV. I look beyond the happy path to find functional issues, usability problems, edge cases, and device-specific bugs. 📱 My current device lab Android • iPhone • iPad • Windows 11 • Smart TV Including Xiaomi, Motorola, Samsung, iOS and webOS devices. 🇧🇷 Why my localization testing is different I’m a native Brazilian Portuguese speaker and professional EN ↔ PT-BR translator. I can evaluate whether your product sounds natural to Brazilian users, not just whether the translation is grammatically correct. I also have experience with AI training and LLM evaluation, including response assessment and prompt writing. Clear bug reports. Real-device testing. Native Brazilian perspective. If you need someone to test your app, website, or localization from a real user’s perspective, send me the details.

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! 🚀

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.

✨ Delivering high-quality usability testing and precise translations for digital platforms since 2012 ✨ 🙋‍♂️ 𝗛𝗶, 𝗜'𝗺 𝗔𝗻𝘁𝗼𝗻𝗶𝗼! I'm an experienced App, Website, and Game Tester, as well as a multilingual Translator specialized in delivering detailed usability evaluations and natural, culturally adapted translations into Brazilian Portuguese. Over the past decade, I've collaborated with clients across different industries, offering actionable feedback on user experience, functionality, design, and performance of mobile apps, websites, and digital platforms. My goal is to help developers and product owners create more intuitive and efficient user experiences. In addition, I provide clear and accurate translations from English, Spanish, French, and Italian into Brazilian Portuguese, ensuring each project resonates with the target audience while preserving original intent and tone. My work is marked by reliability, attention to detail, and consistent delivery of high-quality results. 🔹 𝗦𝗸𝗶𝗹𝗹𝘀 UX/UI Testing & Feedback App & Game Usability Review Cross-platform Testing Functional Testing Cultural Localization Linguistic Quality Assurance (LQA) Translation & Adaptation for Digital Content 🔹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗔𝗿𝗲𝗮𝘀 Mobile Apps & Games E-learning Platforms Landing Pages & Websites Software Interfaces Digital Marketing Content Multilingual Testing Projects Translations with SEO Focus 📚 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 10+ years working with app testing and translations Freelance projects via platforms like Upwork and others Continuous learning in UX testing and localization best practices Ready to make your digital experience better — in every language. Let’s connect!