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Dang Nguyen
Verified Expert in Engineering
Software Developer
Nam Định, Nam Dinh, Vietnam
Toptal member since April 4, 2022
Bio
Dang has seven years of experience as a full-stack web developer with React and Node.js. He can cover almost every aspect of web app development, including front-end clients, back-end servers, databases, hosting, and CI/CD. Dang can recommend solutions and design architecture to fulfill all requirements and expectations.
Portfolio
Haystack Insights Inc.
React, TypeScript, Tailwind CSS, Chart.js, JavaScript, HTML, CSS, Git, Jira...
Sparkles FZCO
TypeScript, JavaScript, Amazon Web Services (AWS), React, Node.js, PostgreSQL...
Freelance
JavaScript, Node.js, React, TypeScript, SQL, MongoDB...
Experience
- MongoDB - 5 years
- React - 5 years
- Node.js - 5 years
- SQL - 5 years
- JavaScript - 5 years
- Next.js - 4 years
- TypeScript - 3 years
- Amazon Web Services (AWS) - 2 years
Work Experience
Front-end Developer
2023 - 2024
Haystack Insights Inc.
- Developed a new web application for the client. The application is known as the world's first delivery ops platform that helps manage risks, resources, opportunities, and analytics for better delivery.
- Worked alongside product, design, and other teams to help allocate clients' requests.
- Maintained and fixed bugs, as well as allocated risks across the project.
Technologies: React, TypeScript, Tailwind CSS, Chart.js, JavaScript, HTML, CSS, Git, Jira, Next.js, API Integration, ChatGPT, OpenAI, REST APIs, React Hook Form, TanStack Router, Vite, Full-stack
Full-stack Developer
2022 - 2022
Sparkles FZCO
- Developed an NFT marketplace for the company that is used by a significant number of users.
- Worked alongside product, design, and other teams to help define new components.
- Created various marketplace features using Web3.js, including buy, sell, offer, and auction.
Technologies: TypeScript, JavaScript, Amazon Web Services (AWS), React, Node.js, PostgreSQL, Web3.js, Tailwind CSS, HTML5, NPM, Docker, Web Development, Front-end Development, Axios, Chart.js, Responsive, API Integration, Next.js, User Experience (UX), Full-stack Development, REST APIs, React Hook Form, TanStack Router, Vite, Full-stack, Blockchain
Web Developer
2020 - 2022
Freelance
- Worked on many projects for a variety of clients. Delivered those projects successfully and gained a positive reputation.
- Advised and built solutions for companies in technical fields. Worked as a technical consultant.
- Participated in and deployed web applications in a production environment.
Technologies: JavaScript, Node.js, React, TypeScript, SQL, MongoDB, Google Cloud Platform (GCP), Amazon Web Services (AWS), Product Ownership, Agile, API Integration, Amazon DynamoDB, HTML5, Docker, Automated Testing, Web Development, Front-end Development, Axios, Responsive, Full-stack Development, REST APIs, Full-stack
Web Developer
2019 - 2021
Bac Ha Software Co., Ltd. (BHSoft)
- Developed many projects for clients in different fields, including a 3D virtual environment web app, a job market platform, and a real-time chat and video calling web app. Worked on other projects, including a Shopify management app and a dating app.
- Communicated with the clients, led the development team on several significant projects, and became one of the key developers in the company.
- Established a core developer role in a company whose product is a real-time chat and WebRTC solution. The company was able to sell those products to many clients.
Technologies: JavaScript, Node.js, React, GraphQL, Apollo, TypeScript, SQL, MongoDB, Google Cloud Platform (GCP), Amazon Web Services (AWS), Git, MySQL, PostgreSQL, HTML5, NPM, Docker, Cloud Firestore, Chakra UI, Web Development, Front-end Development, Axios, Responsive, Payment APIs, API Integration, Full-stack Development, REST APIs, React Hook Form, Full-stack, Email Systems, SendGrid
Web Developer
2018 - 2019
DevSocial
- Designed and determined the structure of the website on the front end. Developed features and improved user experiences. Developed a responsive web app. Optimized clean code.
- Developed, designed, and managed a web app database on the back end. Implemented web app security methods. Designed and implemented REST APIs. Used Python, Django, Chakram REST API Framework, and MongoDB.
- Deployed and managed the website domain with Amazon Route 53. Deployed the server on AWS EC2 and AWS S3; MongoLab, and HTTPS security database with Let's Encrypt.
Technologies: JavaScript, React, Node.js, Python, Flask, jQuery, HTML5, Docker, Web Development, Front-end Development, Axios, Responsive
Experience
Haystack | The World's First Delivery Ops Platform
https://usehaystack.io/Haystack is a platform that enhances team delivery. It gives insights, analytics, and alerts about risks, teams' resources, delays, and bottlenecks that will help speed up delivery and maintain a healthier development lifecycle.
Sparkles NFT
A leading NFT marketplace for Songbird coin and the Flare Network. The platform supports buying, selling, offering, auctioning, etc., with millions of dollars in daily trading volume. The project was an engagement with Sparkles FZCO via the Toptal network. I was one of the core developers who developed the main market features and built front-end UI components.
Flirtbees Dating Platform
https://flirtbees.com/Developed a dating site for users, supporting video calls, chat, and random user matches. The website is SEO-friendly and reaches more than 300,000 clicks each month. The web app can also be embedded into other websites for marketing purposes.
Blue Box Jobs Market Platform
https://www.blueboxjobs.com/Blue box is a platform for job seekers and employers. Job seekers can look for their desired jobs in particular fields, and manage their profiles, saved jobs, and resumes. Employers can post their jobs, manage and exchange candidates’ resumes with other employers, and manage their company profiles.
The client was able to launch the platform and gain up to 50,000 active users.
The client was able to launch the platform and gain up to 50,000 active users.
StatStak | Sport Team Management and Data Visualization
https://www.statstak.io/Designed a platform for sports teams and universities to manage their athletes and team members. They can track data and visualize athlete performance using customized charts, graphs, and tables for analytics.
Placifull | Real Estate Listings and Bidding
I developed a platform for users to list real estate.
KEY FEATURES
• Users can post their listings.
• Listings can be found based on location.
• Users can bid on the listings.
• Users can message each other.
KEY FEATURES
• Users can post their listings.
• Listings can be found based on location.
• Users can bid on the listings.
• Users can message each other.
Virtual Event 3D Web Application
Created a 3D environment virtual event web app for organizing events. The organizers and booth owners can showcase booths, products, and services. The participants can browse through various stalls and contact booth owners.
The client was an event organizer. They have been able to host many virtual events. Some events even have 1,500 to 3,000 concurrent connections at the same time.
The client was an event organizer. They have been able to host many virtual events. Some events even have 1,500 to 3,000 concurrent connections at the same time.
Doctor and Pharmacy Finder
A platform for the users to find doctors and pharmacies based on location. The platform allows searching by doctors, drugs, pharmacies, healthcare plans, etc. The application makes use of the Geocoding API to display maps and locations.
Solidum Capital
Solidum Capital is a crypto asset management project that provides auto trading using TradingView alert, managing crypto assets, and interacting with brokers such as Binance, FTX, etc.
I was in charge of building front-end UI and translating TradingView indicator alerts for auto trading.
I was in charge of building front-end UI and translating TradingView indicator alerts for auto trading.
Education
2015 - 2019
Bachelor's Degree in Administration Information Systems and Technology
California State University, San Bernardino - San Bernardino, CA, USA
Skills
Libraries/APIs
React, Node.js, Socket.IO, React Redux, React Router, Chart.js, REST APIs, React Hook Form, WebRTC, Google Geocoding API, ApexCharts.js, D3.js, React Flow, Stripe, jQuery, Web3.js, JavaScript Charting, Binance API
Tools
JSX, TanStack Router, Git, NPM, SendGrid, Figma, Jira, ChatGPT
Languages
JavaScript, TypeScript, SQL, HTML, CSS, Pine Script, HTML5, GraphQL, Python
Frameworks
Next.js, Bootstrap, Material UI, Redux, Express.js, Tailwind CSS, NestJS, Hapi.js, Flask
Paradigms
Event-driven Programming, Responsive, Agile, Automated Testing, Unit Testing, E2E Testing
Platforms
Firebase, Google Cloud Platform (GCP), Amazon Web Services (AWS), Docker, AWS Lambda, Twilio, Blockchain
Storage
PostgreSQL, MySQL, MongoDB, NoSQL, Cloud Firestore, Amazon DynamoDB
Other
Styled-components, WebSockets, APIs, Front-end, React Hooks, TradingView, Chakra UI, Web Development, Front-end Development, Axios, Full-stack Development, Full-stack, Apollo, Data Visualization, Payment APIs, Vite, Email Systems, Responsive Web Apps, User Experience (UX), Product Ownership, API Integration, Cryptocurrency Exchanges, OpenAI, Electronic Health Records (EHR)
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