Mark John Dequiño
@markjohndequio
Full Stack Developer building responsive React/Next apps and real-time Node.js REST APIs.
PhilippinesWhat I'm looking for
I’m a Full Stack Developer specializing in React.js, Next.js, and Node.js, with experience building responsive web applications, REST APIs, and real-time platforms. I focus on creating production-ready features through project-based development and internship experience.
In my Opsie Software Solutions Inc. Full Stack Developer Intern role, I developed OpSync, a real-time communication platform using React Native, Node.js, and PostgreSQL. I designed a responsive messaging interface with React.js and Tailwind CSS, improving performance by 25% and reducing UI-related issues, and I built RESTful APIs that reduced unnecessary API requests while improving data retrieval efficiency by 20%.
I also delivered stability and readiness by debugging and resolving 50+ application issues through testing and troubleshooting before production release. Through projects like MaxSecure and DequoDed, I continue to build secure, accessible experiences—combining React, Tailwind, Node.js, Firebase, and modern UI/UX standards from Figma.
Experience
Work history, roles, and key accomplishments
Full Stack Developer Intern
Opsie Software Solutions Inc.
Feb 2026 - Jun 2026 (4 months)
Developed OpSync, a real-time communication platform using React Native, Node.js, and PostgreSQL, including messaging, document collaboration, video conferencing, scheduling, and role-based access control. Designed a responsive messaging UI with React.js and Tailwind CSS (25% performance improvement) and built RESTful APIs to reduce unnecessary API requests (20%), while debugging and resolving 50+
Education
Degrees, certifications, and relevant coursework
STI College Pasay-EDSA
Bachelor of Science in Information Technology, Information Technology
2023 - 2026
Activities and societies: ASIAFinisher Certificate — Advanced System Integration & Architecture (STI College Pasay-EDSA), Dec 2024.
Pursuing a Bachelor of Science in Information Technology at STI College Pasay-EDSA from 2023 to 2026.
Pateros Technological College
2022 - 2023
Grade: GWA 1.28
Academic Achiever (GWA 1.28) during AY 2022–2023 at Pateros Technological College.
Tech stack
Software and tools used professionally
Availability
Location
PhilippinesAuthorized to work in
Website
dequo-ded-web.vercel.appJob categories
Interested in hiring Mark John?
You can contact Mark John and 90k+ other talented remote workers on Himalayas.
Message Mark JohnGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
