Being a full-stack developer involves numerous considerations during project development, such as paradigms, languages, frameworks, databases, and infrastructure, but security often gets overlooked despite its critical importance. With data breaches on the rise, developers are urged to prioritize security from the outset, using a "Tech Blueprint" to track software, libraries, and permissions, and to adopt security measures like HTTPS, preventing XSS and CSRF, and utilizing logging and log analysis. Open Source software engagement is recommended for broader scrutiny and faster identification of vulnerabilities, supported by responsible disclosure policies and potentially bug bounty programs. Following the OWASP Top 10 list of security threats can further enhance web application security. This discussion is part of a series that aims to delve deeper into web server vulnerabilities and user authentication practices in subsequent articles.