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Justin Pasion

@justinpasion

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Senior full-stack developer building scalable SaaS and customer web platforms with React and APIs.

Philippines

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What I'm looking for

I’m looking to build scalable, user-focused SaaS products—owning React/Next.js features, integrating REST APIs, improving performance, and collaborating closely with product and backend teams to deliver reliable platforms.

I’m a Senior Full-Stack Developer with 8+ years of experience building SaaS platforms, CRM systems, dashboards, business applications, and customer-facing web products. I’m driven by measurable impact—improving performance, reducing defects, and delivering scalable software that supports business growth and operational efficiency.

At SKIGIT (01/2023–03/2026), I improved frontend performance and reduced page load times by ~30% through component refactoring, lazy loading, asset optimization, and rendering improvements. I built and maintained React and Next.js applications, integrated frontend flows with backend REST APIs, and helped improve data consistency, reliability, and user experience across workflows.

Previously at TOTO CLUB (01/2022–12/2022), I reduced frontend defects by ~35% through systematic debugging, testing, and browser compatibility fixes. I delivered responsive Angular-based experiences across desktop, tablet, and mobile, while partnering with backend developers to streamline data flow and strengthen platform reliability.

Earlier at ELITE DIGITAL AGENCY (07/2018–12/2021), I built and maintained web applications, landing pages, and customer-facing solutions across multiple client projects. I improved performance and maintainability through refactoring and technical debt reduction, and in my internship at SDLC CORP (04/2017–06/2018) I supported UI enhancements and API integrations while contributing to development planning and code reviews.

Experience

Work history, roles, and key accomplishments

Senior Full-Stack Developer

Skigit

Jan 2023 - Mar 2026 (3 years 2 months)

Improved frontend performance and reduced page load times by ~30% through component refactoring, lazy loading, asset optimization, and rendering improvements. Built and maintained React/Next.js applications and integrated REST APIs to improve data consistency, reliability, and platform stability.

React Next.js TypeScript REST APIs Performance Optimization Lazy Loading Asset Optimization

Frontend Developer

Toto Club

Jan 2022 - Dec 2022 (11 months)

Reduced frontend defects by ~35% using systematic debugging, testing, browser compatibility fixes, and code quality improvements. Developed Angular modules and reusable component libraries, delivered responsive interfaces, integrated APIs, and provided production support to reduce user-facing errors.

Angular Responsive Web Design Browser compatibility Front end Testing Debugging Accessibility Production Support

Full-Stack Developer

Elite Digital Agency

Jul 2018 - Dec 2021 (3 years 5 months)

Built and maintained web applications, landing pages, and customer-facing business solutions, integrating frontend functionality with REST APIs. Improved performance and maintainability via refactoring and technical debt reduction, reducing recurring UI-related issues by ~25% while delivering on Agile timelines.

Web Application Development REST APIs Code Refactoring Performance Optimization Agile Scrum Browser Testing UI Maintenance Maintain

Frontend Developer Intern

SDLC Corp

Apr 2017 - Jun 2018 (1 year 2 months)

Assisted with developing web application features using HTML, CSS, and JavaScript, implementing UI enhancements and bug fixes to improve usability. Supported API integrations and third-party service implementations and participated in planning, code reviews, and debugging activities.

HTML CSS JavaScript API Integration Code Review Debugging