Andrew Jeffrey
Hi, I am Andrew Jeffrey, a results-driven Senior Web Developer with over 11 years of experience building and maintaining robust web platforms, including job portals.
About
Hi, I am Andrew Jeffrey, a results-driven Senior Web Developer with over 11 years of experience building and maintaining robust web platforms, including job portals. I specialize in delivering fast, secure, and accessible digital solutions that enhance user experience and drive business results.
I enjoy collaborating with cross-functional teams to translate requirements into clean, scalable code and thoughtful UI/UX improvements. I am passionate about performance optimization, security, and continuous learning to stay ahead in a rapidly evolving web landscape.
- 11 years' experience
- Joined January 2026
Industry experience
- Software & Internet
- Professional Services
Work experience
Led the ongoing maintenance and enhancement of a job portal website, using PHP and MySQL to ensure performance, reliability, and security. Implemented modern front-end frameworks (React and Vue.js) to improve UI/UX based on user feedback. Conducted regular security audits and applied OWASP-aligned updates to mitigate vulnerabilities. Optimized loading speeds by integrating CDN delivery and refining JavaScript and CSS delivery methods, achieving a 40% reduction in load time. Collaborated with designers and stakeholders to implement UI/UX improvements, contributing to a 30% increase in user engagement. Used Git in an Agile environment for version control and feature delivery. Documented processes to support knowledge sharing. Developed RESTful APIs with Node.js to enable seamless integration with third-party services. Improved accessibility and WCAG compliance, broadening usability for all users. Monitored analytics via Google Analytics to drive data-driven decisions for feature enhancem
Maintained and updated multiple client websites, ensuring compatibility with modern web standards using HTML, CSS, and JavaScript. Implemented WordPress plugins and themes to enhance functionality and user experience for various clients. Troubleshot and resolved PHP issues to improve site reliability. Performed performance optimizations, including image compression and caching strategies, resulting in faster load times. Collaborated with cross-functional teams to gather requirements and deliver tailored web solutions. Used Git for source control and participated in Agile ceremonies to improve team efficiency.
Assisted in the development of web applications using HTML, CSS, and JavaScript, focusing on responsive design principles. Supported the migration of legacy systems to modern frameworks, improving performance and maintainability. Contributed to internal tools using PHP and MySQL, streamlining workflow processes. Engaged in code reviews and pair programming to foster knowledge sharing and improve code quality. Learned and applied best practices in web security, including basic SSL implementation and XSS prevention techniques.
Education
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