Antonio Stoilkov
Verified Expert in Engineering
React Developer
Sofia, Bulgaria
Toptal member since September 9, 2022
Antonio is a developer with over a decade of experience who started programming when he was 15, making his way to an accomplished professional. His main areas of expertise are React, Electron, and building sophisticated software with great UX. Another remarkable passion of Antonio's is open-source software development.
Portfolio
Experience
- JavaScript - 13 years
- Performance - 10 years
- Electron - 8 years
- TypeScript - 7 years
- React - 6 years
- Technical Consulting - 3 years
- Tailwind CSS - 2 years
- OpenAI - 1 year
Availability
Preferred Environment
React, TypeScript, Tailwind CSS
The most amazing...
...app I've developed is the notes app Nota which users value for its refined experience.
Work Experience
Developer and Owner
IntelliBar
- Wrote 99% of the app's code. Worked on everything, including features, bug fixes, testing, continuous integration, building, and publishing.
- Implemented the first version of the product in 14 days.
- Directed the decisions related to the product's UX, resulting in excellent user feedback.
Developer and Owner
Nota
- Wrote 99% of the app's code. Worked on everything, including features, bug fixes, testing, continuous integration, building, and publishing.
- Improved the app search speed, making it an open source part of the solution.
- Directed the decisions related to the product's UX, resulting in excellent user feedback.
TypeScript Developer
Repl.it Inc
- Developed a tool for detecting TypeScript performance issues. It took me 20 hours to build it.
- Developed a tool for detecting Webpack performance issues. The work took me 20 hours.
- Found the highest priority performance issues in the codebase quickly.
Developer and Owner
iBar
- Wrote 99% of the app's code. I implemented features, fixed bugs, and wrote tests.
- Solved the app's main challenge in search performance by creating an algorithm that displays results instantly while being smart.
- Researched a Tauri-based rewrite of the app's codebase.
Developer and Owner
Caret.io
- Wrote 99% of the app's code, covering all features, bug fixes, testing, continuous integration, building, and publishing.
- Designed the entire code architecture and internal API.
- Built a text editor from scratch, which we are still using in our new product. Anyone who has tried to implement a text editor knows it's extremely challenging, and many have failed.
Senior Developer and Scrum Master
Telerik
- Worked on a new testing infrastructure to improve our department's developer experience.
- Supervised the team's activities as the scrum master.
- Conducted code reviews, demonstrating my expertise and commitment to work.
Experience
Nota Pro Notes App for Local Markdown Files
https://nota.mdFast and Consistently Responsive Apps with a Single Function Call
https://github.com/astoilkov/main-thread-schedulingJSBlocks for a Better Model-view Framework
http://jsblocks.com/Skills
Libraries/APIs
React, REST APIs, Node.js, GitHub API, Solid, Google Maps, API Development
Tools
JSX, ChatGPT, GitHub
Languages
TypeScript, JavaScript, ECMAScript (ES6), CSS, HTML, CSS3, HTML5, C#, Swift, SQL
Frameworks
Electron, Tailwind CSS, Redux, Next.js, React Native, .NET, ASP.NET, Express.js
Paradigms
Desktop App Development, Test-driven Development (TDD), Design Patterns, UX Design, Agile Software Development, Agile, Search Engine Optimization (SEO)
Platforms
Desktop, Visual Studio Code (VS Code), MacOS, Windows, Firebase, Blogger
Storage
JSON, MySQL, SQLite, NoSQL
Other
Performance, Front-end Development, Code Architecture, APIs, Web Development, Web App Development, Architecture, Technical Architecture, Software Architecture, UI Components, Software Development, Chatbots, AI Chatbots, ChatGPT API, User Interface (UI), User Experience (UX), Front-end, Graphical User Interface (GUI), Documentation, Writing & Editing, Technical Writing, Vite, OpenAI GPT-3 API, OpenAI GPT-4 API, Technical Consulting, OpenAI, Web UX, First Contentful Paint (FCP), Artificial Intelligence (AI), API Integration, code signing, signing executables, Design, Scrum Master, Content Writing, Programming Language Design, Programming Languages, JSON REST APIs, Generative Pre-trained Transformer 3 (GPT-3), Generative Pre-trained Transformers (GPT), Data Scraping, Scraping, Web Scraping, Blogging, CTO, Leadership, Technical Leadership, Natural Language Processing (NLP), ChatGPT Prompts, Prompt Engineering
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