# John W. > Software Engineer Location: Castro Valley, California, United States Profile: https://flows.cv/johnw1 Hi, I'm John, a highly skilled full stack software engineer based in the Bay Area. With expertise in creating complex web applications using React.js, Node.js, and Express.js, I bring a wealth of knowledge to every project I undertake. My passion for coding drives me to work on meaningful projects that make a difference in people's lives. As a developer, I strive to build fully responsive applications that are not only user-friendly, but also optimized with clean, reusable code. In my free time, I'm always looking for ways to improve myself and further my skills. Whether it's working out, learning new technologies or building personal projects, I'm always pushing myself to be the best that I can be. Currently, I'm focused on training for a marathon and expanding my skills in React Native. When I'm not coding or working on personal projects, I enjoy spending quality time with family and friends. Let's connect and explore how I can contribute my expertise to your next project. ## Work Experience ### Software Engineer @ Finicast, Inc. Jan 2021 – Jan 2022 | San Mateo, California, United States • Developed and deployed a full-stack financial modeling feature for an early stage fintech startup, resulting in increased user engagement and satisfaction • Created an efficient and user-friendly tab system in a React-based web application, improving user experience and navigation between multiple dashboards • Implemented a robust rate limiter in Node backend server to address potential DDoS attacks, ensuring high-level security of sensitive data • Identified and resolved username enumeration vulnerabilities during Schellman penetration testing, leading to successful SOC 2 certification and enhancing the company's reputation • Led the refactoring of end-to-end testing using Puppeteer, improving testing accuracy and achieving a 75% reduction in testing time, resulting in faster product releases and improved performance ## Education ### Bachelor of Science - BS in Computer Science UC Irvine Jan 2016 – Jan 2020 ## Contact & Social - LinkedIn: https://linkedin.com/in/jwang4059 - Website: https://johnwang.vercel.app/ --- Source: https://flows.cv/johnw1 JSON Resume: https://flows.cv/johnw1/resume.json Last updated: 2026-03-29