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Software engineer with 8 years of full-stack experience, backend-focused, building and maintaining web applications end-to-end. I work across React, Node.js, and Symfony (PHP), delivering scalable APIs and high-traffic platform features with clean, maintainable code. I’m results-driven and continuously adopt modern workflows, including AI-assisted development tools (Claude, Cursor, GitHub Copilot), to speed up delivery while preserving quality. I’m also comfortable collaborating in Agile teams, optimizing performance, and integrating third-party services like Xendit.…Software engineer with 8 years of full-stack experience, backend-focused, building and maintaining web applications end-to-end. I work across React, Node.js, and Symfony (PHP), delivering scalable APIs and high-traffic platform features with clean, maintainable code. I’m results-driven and continuously adopt modern workflows, including AI-assisted development tools (Claude, Cursor, GitHub Copilot), to speed up delivery while preserving quality. I’m also comfortable collaborating in Agile teams, optimizing performance, and integrating third-party services like Xendit.

Diane Karissa Guinto

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

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Software engineer with 8 years of full-stack experience, backend-focused, building and maintaining web applications end-to-end. I work across React, Node.js, and Symfony (PHP), delivering scalable APIs and high-traffic platform features with clean, maintainable code. I’m results-driven and continuously adopt modern workflows, including AI-assisted development tools (Claude, Cursor, GitHub Copilot), to speed up delivery while preserving quality. I’m also comfortable collaborating in Agile teams, optimizing performance, and integrating third-party services like Xendit.…Software engineer with 8 years of full-stack experience, backend-focused, building and maintaining web applications end-to-end. I work across React, Node.js, and Symfony (PHP), delivering scalable APIs and high-traffic platform features with clean, maintainable code. I’m results-driven and continuously adopt modern workflows, including AI-assisted development tools (Claude, Cursor, GitHub Copilot), to speed up delivery while preserving quality. I’m also comfortable collaborating in Agile teams, optimizing performance, and integrating third-party services like Xendit.

Available to hire

Software engineer with 8 years of full-stack experience, backend-focused, building and maintaining web applications end-to-end. I work across React, Node.js, and Symfony (PHP), delivering scalable APIs and high-traffic platform features with clean, maintainable code.

I’m results-driven and continuously adopt modern workflows, including AI-assisted development tools (Claude, Cursor, GitHub Copilot), to speed up delivery while preserving quality. I’m also comfortable collaborating in Agile teams, optimizing performance, and integrating third-party services like Xendit.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Work Experience

Freelance Software Engineer

October 1, 2025 - Present

Contributed to full-stack web applications using React, Node.js, and Symfony (PHP), collaborating across the stack from feature design through deployment. Accelerated feature delivery by integrating AI-assisted development tools (Claude, Copilot/Cursor) to reduce boilerplate and scaffolding time, focusing more on architecture and complex logic. Used AI tools for code review and refactoring to uphold code quality standards and catch issues early. Produced and maintained technical documentation and test coverage using AI-assisted workflows to improve clarity and reduce onboarding friction for the team.

Software Engineer at Lamudi Philippines Inc.

July 1, 2021 - March 1, 2025

Developed and deployed React applications, improving system efficiency by 30%. Built backend services in Symfony handling over 1 million API requests per month. Integrated third-party APIs for payments (Xendit). Designed and optimized RESTful APIs for high-traffic platforms, reducing response times by 40%. Collaborated to build a React-based dashboard to increase user engagement. Assisted with PostgreSQL database query optimization for improved system performance. Led migration from a monolithic architecture to microservices to improve scalability and maintainability.

Software Engineer at Digital Room (Philippines) Inc.

June 1, 2017 - July 1, 2021

Collaborated with a cross-functional team to build an AngularJS and Zend Framework 2 shipping calculator to meet business requirements. Designed, coded, debugged, and implemented performance-efficient, reliable, and maintainable software. Applied programming and design techniques consistent with software development standards. Reviewed teammates’ code.

On-the-Job Trainee at Site TeleTech Cainta

June 1, 2016 - October 1, 2016

Performed basic troubleshooting, network configuration, database manipulation, and SCCM manipulation. Helped resolve minor bug fixes, enhancements, and maintenance tasks.