I’m John Bernard Sahagun, a software engineer who enjoys building reliable web platforms that perform well and are easy to maintain. I’ve collaborated with senior engineers to deliver multiple production web sites, focusing on front-end development, integrations, and performance optimization, and I take pride in shipping end-to-end improvements that reduce manual effort. I also like tackling data-driven and customer-facing problems—whether it’s implementing real-time matching experiences, automating workflows, or improving SEO and analytics for e-commerce systems. Alongside my engineering work, I’ve presented research and earned recognition for consistent leadership and strong technical performance, and I’m currently continuing to deepen my skills in modern web development, cloud, and security-minded development.

John Bernard Sahagun

I’m John Bernard Sahagun, a software engineer who enjoys building reliable web platforms that perform well and are easy to maintain. I’ve collaborated with senior engineers to deliver multiple production web sites, focusing on front-end development, integrations, and performance optimization, and I take pride in shipping end-to-end improvements that reduce manual effort. I also like tackling data-driven and customer-facing problems—whether it’s implementing real-time matching experiences, automating workflows, or improving SEO and analytics for e-commerce systems. Alongside my engineering work, I’ve presented research and earned recognition for consistent leadership and strong technical performance, and I’m currently continuing to deepen my skills in modern web development, cloud, and security-minded development.

Available to hire

I’m John Bernard Sahagun, a software engineer who enjoys building reliable web platforms that perform well and are easy to maintain. I’ve collaborated with senior engineers to deliver multiple production web sites, focusing on front-end development, integrations, and performance optimization, and I take pride in shipping end-to-end improvements that reduce manual effort.

I also like tackling data-driven and customer-facing problems—whether it’s implementing real-time matching experiences, automating workflows, or improving SEO and analytics for e-commerce systems. Alongside my engineering work, I’ve presented research and earned recognition for consistent leadership and strong technical performance, and I’m currently continuing to deepen my skills in modern web development, cloud, and security-minded development.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Advanced

Work Experience

Remote Software Engineer / Software Engineer (Remote)
September 1, 2025 - June 30, 2026
Collaborated with senior engineers to deliver four production web sites, contributing across front-end development, integrations, and performance optimization. Built and launched a customer–provider matching platform with real-time availability, Klaviyo lifecycle automation, and a Retool operations dashboard; automated approximately 91% of end-to-end submissions. Contributed to the migration and modernization of a major Australian government website, developing reusable licensure catalogs and improving performance using caching and Next.js rendering strategies (SSR, SSG, ISR). Helped develop a headless Shopify storefront using Next.js and Sanity, including product and discount synchronization with Sanity Studio to streamline content management and improve conversion rate. Integrated Firebase Authentication, Cloudflare Turnstile CAPTCHAs, recurring payment processing, and dynamic Salesforce field mapping to automate customer onboarding, secure form submissions, billing, and CRM workfl
KPI Monitoring System Developer (Best OJT Presenter project)
April 1, 2025 - August 1, 2025
Developed a plant-wide KPI monitoring system for the entire plant, earning Best OJT Presenter award. Integrated a Power BI dashboard into the application designed for large-scale plant-wide usage.
WordPress Developer (Lead/Leadership roles) at MADLY (or internship continuation as implied by resume sections)
April 1, 2022 - March 31, 2025
Authored and supported WordPress development and engineering tasks tied to the Divi-to-Elementor migration, WooCommerce flow improvements, SEO enhancements, and integration/testing support. (Role title listed separately in the resume section; details are consistent with the internship outcomes.)
Software Engineer Intern at MADLY (Singapore & Dubai)
April 1, 2022 - March 31, 2025
Migrated 38 pages and 300+ posts including custom post types from Divi to Elementor in two weeks. Developed WooCommerce flows, improved SEO, and authored/checkly synthetic test setups; supported Salesforce integration and ongoing optimization work across the WordPress stack.

Education

Bachelor of Science in Computer Science - Summa Cum Laude at Mapúa University
August 2, 2021 - November 2, 2025

Qualifications

Introduction to Software Engineering
October 1, 2025 - September 1, 2026
E-commerce: Shopify, WooCommerce, payment workflows
October 1, 2025 - September 1, 2026
Security: Firebase Authentication, Cloudflare Turnstile integrations
October 1, 2025 - September 1, 2026
Integrations: Klaviyo, Salesforce, Shopify, Supabase
October 1, 2025 - September 1, 2026
Monitoring & Testing: Checkly, Playwright
October 1, 2025 - September 1, 2026
Databases: PostgreSQL, SQL Server
October 1, 2025 - September 1, 2026
AWS Academy Graduate - AWS Academy Cloud Foundations
October 1, 2023 - September 1, 2026

Industry Experience

Software & Internet, Government, Retail, Education, Computers & Electronics