Alcade K.

QA Engineer | API & Web/Mobile Testing | React/React Native & Node.js

I help startups and product teams find the bugs, edge cases, and usability issues that can slip through development before they reach users. I'm a Top Rated QA Engineer and Computer Science graduate with hands-on experience testing web and mobile applications, supported by a background in software development and localization. My strongest area is QA for web and mobile products — from functional and regression testing to API testing, exploratory testing, test-case execution, automation, and detailed bug reporting. What I can help you with • Manual, functional & exploratory testing • Web and mobile application testing • Regression testing and release validation • API testing with Postman • Test case creation and execution • Bug reproduction and detailed Jira reporting • Cross-browser and device testing • Selenium automation with Java/Python • Appium mobile automation • React Native application testing • QA for React/Node.js applications Why my development background matters I don't approach QA as simply following a checklist. With hands-on experience in React, React Native, Node.js, Express.js, REST APIs, and PostgreSQL, I understand how applications work beyond the user interface. This helps me communicate technical issues clearly, reproduce problems effectively, work smoothly with developers, and verify fixes with a deeper understanding of the product. I can also contribute to software development when needed, particularly with React/React Native, Node.js, REST APIs, databases, authentication, and third-party API integrations. Localization & language QA My background in Kinyarwanda-English translation and localization allows me to support multilingual products as well. I can test translated interfaces for linguistic accuracy, consistency, missing or incorrect translations, UI text issues, and overall localization quality. What you can expect from me • Thorough and structured testing • Clear, reproducible bug reports • Practical communication with development teams • Careful verification of fixes • Attention to real user workflows and edge cases • Reliable delivery and fast communication If you need someone who can test your product from a user's perspective while also understanding the technical side of the application, I'd be happy to help.