EXPLORE


1.4
1.4
100%
$20 USD / Hour
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Vietnam (3:32 PM)
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Joined on September 14, 2025
$20 USD / Hour
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Full-stack developer with 6+ years of experience building scalable web applications, APIs, and interactive user interfaces. Skilled in JavaScript, React, Node.js, Express, and RESTful API development. Experienced in delivering end-to-end solutions for clients ranging from startups to established businesses. Passionate about clean code, performance optimization, and user-centered design. Core Skills - Frontend: React.js, Next.js, Vue.js, Angular.js, HTML, CSS, Tailwind CSS, WordPress - Backend: Node.js, Express.js, Nest.js, PHP (Laravel) - APIs & Databases: RESTful API, GraphQL, MySQL, MongoDB, PostgreSQL - Tools & DevOps: Git, Docker, CI/CD, AWS, Firebase - Other: Agile, Scrum, Cross-functional collaboration
Verifications
On time
100%
On budget
100%
Accept rate
50%

WooCommerce Web development

Job Portal Web Application

Dashboard development for a Wineshop

Digital Agency website design

ECommerce APP

Ecommerce Store

WooCommerce Web development

Job Portal Web Application

Dashboard development for a Wineshop

Digital Agency website design

ECommerce APP

Ecommerce Store

Awesome work, will keep working together in the future. thank you for developing for me
Jacob F.
@JacobFeldman
•

Tarzana, United States
•
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Education
Hanoi University of Foreign Studies
2020 - 2023
•
3 years
Bachelor's Degree of Information Technology

Vietnam
2020 - 2023
•
3 years
Qualifications
Awarded ‘Best Web App Project’ in University Capstone 2022
2022
Best Web Application Project (2022) – Hanoi University of Science & Technology
Proficient in JavaScript, React, Node.js, Express, RESTful APIs, PHP, Laravel, and Python. Strong background in databases (MySQL, MongoDB) and cloud deployment (AWS, Azure, Google Cloud)
2022
FreeCodeCamp Certifications
2022
JavaScript Algorithms & Data Structures
Full-stack developer with rich experience delivering scalable and user-friendly web applications.
2022
Publications
Improving JavaScript Performance: Techniques and Best Practices
2024
Techelopment
JavaScript is one of the most popular languages used for web application development, due to its ability to make user interfaces dynamic and interactive. However, as modern web applications become more complex, performance can become a significant issue. A slow or unresponsive application can degrade the user experience, leading to an increase in abandonment rates. In this article, we will explore some of the most effective techniques for improving the performance of JavaScript code.
2024