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Senior Software Engineer with over 10 years of experience building scalable enterprise web applications across Australia and internationally. I specialize in PHP and Laravel backend architecture, REST APIs, database optimisation, and production deployments using Docker and cloud platforms. I’ve led full lifecycle delivery—from requirements and system design to development, testing, and release—across domains including education, event management, e-commerce, and Web3/NFT platforms. I also leverage AI-assisted development tools to improve productivity, troubleshooting, and technical documentation while maintaining high engineering standards.…Senior Software Engineer with over 10 years of experience building scalable enterprise web applications across Australia and internationally. I specialize in PHP and Laravel backend architecture, REST APIs, database optimisation, and production deployments using Docker and cloud platforms. I’ve led full lifecycle delivery—from requirements and system design to development, testing, and release—across domains including education, event management, e-commerce, and Web3/NFT platforms. I also leverage AI-assisted development tools to improve productivity, troubleshooting, and technical documentation while maintaining high engineering standards.

Jan Paul Medina Guzman

Full Stack Developer, Back-End Developer, Web Developer, +2

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Senior Software Engineer with over 10 years of experience building scalable enterprise web applications across Australia and internationally. I specialize in PHP and Laravel backend architecture, REST APIs, database optimisation, and production deployments using Docker and cloud platforms. I’ve led full lifecycle delivery—from requirements and system design to development, testing, and release—across domains including education, event management, e-commerce, and Web3/NFT platforms. I also leverage AI-assisted development tools to improve productivity, troubleshooting, and technical documentation while maintaining high engineering standards.…Senior Software Engineer with over 10 years of experience building scalable enterprise web applications across Australia and internationally. I specialize in PHP and Laravel backend architecture, REST APIs, database optimisation, and production deployments using Docker and cloud platforms. I’ve led full lifecycle delivery—from requirements and system design to development, testing, and release—across domains including education, event management, e-commerce, and Web3/NFT platforms. I also leverage AI-assisted development tools to improve productivity, troubleshooting, and technical documentation while maintaining high engineering standards.

Available to hire

Senior Software Engineer with over 10 years of experience building scalable enterprise web applications across Australia and internationally. I specialize in PHP and Laravel backend architecture, REST APIs, database optimisation, and production deployments using Docker and cloud platforms.

I’ve led full lifecycle delivery—from requirements and system design to development, testing, and release—across domains including education, event management, e-commerce, and Web3/NFT platforms. I also leverage AI-assisted development tools to improve productivity, troubleshooting, and technical documentation while maintaining high engineering standards.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Spanish; Castilian

Advanced

Work Experience

Senior Full Stack Software Developer (Freelance) at Freelance

March 1, 2026 - Present

Design, develop and maintain custom web applications using Laravel, PHP, Vue.js, MySQL and Docker. Deliver an event management platform with ticket sales, QR code validation, merchandise management, admin dashboards, Stripe payments, and automated email notifications. Build and maintain REST APIs for frontend/backend communication and business workflows. Design database schemas, optimise SQL queries, and improve backend performance. Use AI-assisted development tools to troubleshoot, generate technical documentation, review code, and explore implementation options. Prepare production deployments using Git for source control.

Full Stack Developer at National College of Australia

August 1, 2025 - February 28, 2026

Designed, developed, maintained and supported business-critical web applications using PHP, CodeIgniter, Vue.js and MySQL. Implemented backend functionality following CodeIgniter MVC architecture and delivered responsive frontend features. Designed database structures and optimised SQL queries to improve application performance. Collaborated with stakeholders to translate business requirements into software solutions. Used Git and Bitbucket for source control, code reviews and branch management. Prepared technical documentation and UML/system analysis diagrams. Applied AI-assisted development tools to accelerate development, troubleshoot, review code, and improve code quality while maintaining responsibility for design, testing, and final code quality.

Software Developer (Freelance) at Freelance

November 1, 2024 - July 31, 2025

Designed, maintained and supported web applications using PHP, Laravel, Java, MySQL and Oracle. Developed Laravel backend functionality and Java/EJB components for business applications. Implemented SQL queries and supported database modelling across MySQL and Oracle environments. Prepared system analysis, design documentation and UML models. Delivered software solutions from requirements analysis through development and deployment support.

Project Developer at Darqtec

March 1, 2021 - October 31, 2024

Designed, maintained and supported web applications for e-commerce and cryptocurrency systems using Laravel, PHP and MySQL. Developed NFT generator functionality, smart contracts, minting websites and Web3 sites. Improved application functionality and database efficiency through backend enhancements and SQL query work. Managed deployments and production support through Cloudways administration. Applied PHP coding standards and Git version control across ongoing development activities.

Web Developer at ANZCRO

October 1, 2017 - December 31, 2019

Designed, developed and supported a web-based tour package booking system using PHP, Java, React, Vue.js, Backbone.js, MySQL, JavaScript, HTML5, CSS3, jQuery, AJAX and Cypress. Developed and maintained backend functionality using Laravel following MVC architecture and PHP coding standards. Designed database models using MySQL Workbench and implemented complex SQL queries to improve performance. Built and integrated RESTful APIs between frontend applications and backend services. Managed source code using Git and followed collaborative development best practices. Utilised AWS Cloud9 for cloud-based development and administration, and worked with cross-functional teams to deliver features and troubleshoot production issues.

Software Architect / Java Developer (Government Projects) at Government Projects (Peru)

January 1, 2010 - January 1, 2017

Developed enterprise Java applications and integrated government identity and tax systems. Designed Oracle databases and enterprise architectures. Worked with international technology evaluation projects.