Anton is available for hire
Hire AntonAnton Dobrinov Tonchev
Verified Expert in Engineering
Software Developer
Kyustendil, Bulgaria
Toptal member since September 5, 2021
Bio
Tony is an entrepreneur and full-stack web developer focused on React, JavaScript, Node.js, KOA, and MongoDB. He has over thirteen years of experience and specializes in eCommerce systems and web apps. He has built mobile apps, online shops, file storage and chat systems, plugins, APIs, CI/CD pipelines, and cloud and SaaS services. Tony has launched an academy whose enrollment continues to grow and enjoys working on a variety of projects.
Portfolio
JUST-SELL.online
Koa, MongoDB, Node.js, React, Vite, SaaS, Material UI, apiDoc
NEL Academy
Meteor, MongoDB, React, Node.js, Jira, Bitbucket, WebSockets
ETIV-System GmbH
JavaScript, Azure, Node.js, MongoDB, React, Laravel, MySQL
Experience
- Web Development - 14 years
- Ubuntu - 13 years
- JavaScript - 12 years
- CSS - 12 years
- Node.js - 10 years
- MongoDB - 8 years
- React - 5 years
- Koa - 2 years
Availability
Part-time
Preferred Environment
Windows 10, Windows Subsystem for Linux (WSL), Ubuntu, WebStorm, MongoDB, Node.js, React, Koa, Vite
The most amazing...
...product I've built is a SaaS-based online shop solution that is extremely fast, works offline, and is highly intuitive.
Work Experience
Co-founder and Full-stack Developer
2020 - PRESENT
JUST-SELL.online
- Created a SaaS service that enables the automated creation of fully functional, high performance, and SEO-optimized online shops.
- Delivered a front-end-based web app with React using best practices.
- Applied an easy-to-operate yet highly customizable UI/UX based on Material-UI.
Technologies: Koa, MongoDB, Node.js, React, Vite, SaaS, Material UI, apiDoc
Senior Full-stack and Lead Developer
2017 - 2021
NEL Academy
- Developed a web API for an online learning system with chat functionality where teachers can interactively instruct students.
- Tracked and fixed bugs with Jira, Bitbucket, and Meteor Galaxy.
- Assisted with the 2021 launch, beginning with 20 students. That number continues to grow to this day.
- Created a chat system based on WebSockets, DDP, and file storage based on AWS.
Technologies: Meteor, MongoDB, React, Node.js, Jira, Bitbucket, WebSockets
Senior Full-stack and Lead Developer
2020 - 2020
ETIV-System GmbH
- Developed a web app for an electronic certification system.
- Built the entire Microsoft Azure environment and set up static websites, cloud services, and CI/CD pipelines.
- Created an innovative way to link steal certificates with ERP and supply chain.
Technologies: JavaScript, Azure, Node.js, MongoDB, React, Laravel, MySQL
Senior Full-stack Developer
2015 - 2017
DBC GmbH
- Reworked the entire Schott job portal and managed the relaunch.
- Developed at Schott AG, one of the biggest glass companies in the world. Maintained and supported their website and web systems.
- Created the front end of the online shop for gold and silver at Sparkasse and BayernLB banks.
Technologies: React, Node.js, jQuery, PHP, cURL Command Line Tool, Google Maps API, Facebook API, JavaScript, Photoshop CS6
Senior Full-stack Developer
2015 - 2015
TradeBird
- Developed for the biggest Forex platform in Bulgaria.
- Created a file storage system based on REST, API, Node.js, and AWS.
- Developed a mobile app based on PhoneGap and framework 7.
Technologies: PhoneGap, jQuery, Node.js, Amazon Web Services (AWS), PhoneGap Plugins
Senior Full-stack Developer
2013 - 2015
Various Projects
- Developed mobile apps based on PhoneGap, Node.js, MongoDB and SQLite.
- Built online shops and websites with Shopware, PHP, PHP frameworks, and JavaScript.
- Created XenForo (a forum system) and plugins (PHP, JavaScript).
Technologies: PhoneGap, Node.js, MongoDB, Shopware
Experience
NELA Language App
https://nel.academyA Meteor, Node.js, and MongoDB-based web app for language learning, where teachers can remotely yet interactively teach students with chat messages and book Zoom appointments with reminders, images, videos, and voiceovers.
Currently (during the onboarding phase), more than six teachers and over 20 Students are using this app.
The frequent changing of requirements had made the app very slow. I contributed to a microservice-similar infrastructure and reworked the architecture, which significantly increased the performance and user experience.
Supported languages - German, English, Spanish.
Currently (during the onboarding phase), more than six teachers and over 20 Students are using this app.
The frequent changing of requirements had made the app very slow. I contributed to a microservice-similar infrastructure and reworked the architecture, which significantly increased the performance and user experience.
Supported languages - German, English, Spanish.
JUST-SELL.online
https://just-sell.onlineA SaaS service that allows the automated creation of fully functional, high-performance, and SEO-optimized online shops. The web app front end is based on React using best practices, reaches incredible performance, and works offline. It is easy to operate yet has a highly customizable UI/UX based on Material-UI. The REST API is made available for every shop functionality with beautiful documentation based on ApiDoc.
Currently, the Project is in the beta phase and is being tested in multiple shops by experienced shop owners in industries such as automotive, apparel, gastronomy, and food supplements.
Some of the shop functionalities include an offline-first with PWA application, a powerful JavaScript image editor with an AI background, the ability to remove and add stickers, write text, and add filters. It has an inventory system, does tax calculations, and is a simplified yet highly flexible options and variants system that supports unlimited languages and currencies.
The system of the shop is so lightweight and optimized that it can handle more than 1,000 shops on a 20GB, 1GB ram, and a 1CPU server!
Currently, the Project is in the beta phase and is being tested in multiple shops by experienced shop owners in industries such as automotive, apparel, gastronomy, and food supplements.
Some of the shop functionalities include an offline-first with PWA application, a powerful JavaScript image editor with an AI background, the ability to remove and add stickers, write text, and add filters. It has an inventory system, does tax calculations, and is a simplified yet highly flexible options and variants system that supports unlimited languages and currencies.
The system of the shop is so lightweight and optimized that it can handle more than 1,000 shops on a 20GB, 1GB ram, and a 1CPU server!
Education
2005 - 2012
Diploma (Master's Degree Equivalent) in Business Informatics (Wirtschaftsinformatik)
University of Cologne - Cologne, Germany
Skills
Libraries/APIs
Node.js, React, jQuery, Google Maps API, Facebook API
Tools
WebStorm, Photoshop CS6, Jira, cURL Command Line Tool, apiDoc, Bitbucket
Languages
JavaScript, CSS, PHP
Frameworks
Koa, Laravel, React Native, PhoneGap, Material UI
Platforms
Meteor, Ubuntu, Azure, Amazon Web Services (AWS), Linux
Storage
MongoDB, MySQL
Paradigms
Scrum, Microservices
Industry Expertise
Marketing
Other
Web Development, Windows 10, Windows Subsystem for Linux (WSL), Software Development, Business Processes, Vite, Programming, SaaS, WebSockets, PhoneGap Plugins, Shopware, Architecture
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