Jonalyn Ocrisma

Expose ij Manual Testing of REST API and Functional Testing for Mobile Applications and Web Platforms

With a minimal foundation as a Back-End Developer specializing in Java Spring Boot, I bring both technical awareness and a structured approach to software quality assurance. Having contributed to the design and implementation of REST APIs, I understand not only the development side but also the necessity of careful testing to ensure performance, reliability, and security across different layers of a system. My focus on manual testing of REST APIs and functional testing of mobile and web applications is guided by the belief that even simple and thorough validation can make a significant difference in the overall quality of software.

In the area of REST API testing, I have experience validating endpoints against business requirements, ensuring compliance with HTTP standards, and checking for edge cases. Using tools such as Postman, I can test request/response cycles, validate response payloads, and confirm proper handling of error codes. Beyond functional correctness, I pay attention to testing API contracts, backward compatibility, and integration scenarios, which are increasingly important in service-based architectures. My background in Spring Boot development helps me trace issues back to root causes, whether they stem from logic errors, configuration problems, or data handling.

For functional testing of mobile and web applications, I adopt a user-oriented perspective, ensuring that features align with expected workflows and usability criteria. I create detailed test cases that cover positive and negative scenarios, boundary conditions, and cross-platform validations. In mobile testing, I review functionality across Android and iOS devices, considering differences in operating systems, screen resolutions, and connectivity conditions. For web applications, I emphasize browser compatibility, responsive behavior, and integration with back-end services.

My combined background in development and testing allows me to support collaboration between QA and engineering teams. I can provide clear bug reports, suggest solutions in line with development best practices, and re-test patches efficiently. With an analytical mindset, I aim to detect risks early and recommend preventive measures before they evolve into larger issues.

Ultimately, my approach to manual testing is not limited to identifying defects but is oriented toward ensuring a consistent, reliable, and secure user experience across platforms. Leveraging my minimal foundation in Java Spring Boot back-end development, I bring technical insight, adaptability, and a quality-first mindset that can contribute effectively to teams delivering APIs, mobile applications, and web platforms.