Yulian Karapetkov, Software Developer in Sofia, Bulgaria
Yulian Karapetkov

Software Developer in Sofia, Bulgaria

Member since October 18, 2019
Yulian has over seven years of experience in software development, working with Svelte, React Native, and Angular for the last five. He's also engaged with various technologies, including ASP.NET MVC, Web API, Express.js, and, among his favorites, Firebase and Nest.js. Yulian has excellent communication skills and has prior experience working as an independent consultant.
Yulian is now available for hire


  • Playpilot
    Svelte, Sapper, React Native, Expo, Firebase, Firebase Cloud Functions...
  • Slate
    Angular, NgRx, NgRx/store, RxJS, TypeScript, HTML, CSS
  • Pikkop
    Angular Material, NgRx, Express.js, Node.js, Firebase Cloud Functions...



Sofia, Bulgaria



Preferred Environment

Slack, Git, VS Code, MacOS

The most amazing...

...project that I've been a core team member of is actually the first P2P lending platform in Bulgaria.


  • Senior Front-end Developer

    2020 - PRESENT
    • Collaborated on developing features and maintaining the web front-end using Svelte and Sapper.
    • Developed features and maintained the mobile front-end using React Native and Expo.
    • Created an admin interface for managing curated movies and shows on both the web and mobile platforms.
    Technologies: Svelte, Sapper, React Native, Expo, Firebase, Firebase Cloud Functions, TypeScript, JavaScript, HTML, CSS
  • Senior Front-end Developer

    2019 - 2020
    • Developed from scratch an admin interface for managing resources like images, videos, and fonts.
    • Designed the architecture of the front-end of the application.
    • Communicated directly with the CTO of the company and lead the front-end development of the project.
    Technologies: Angular, NgRx, NgRx/store, RxJS, TypeScript, HTML, CSS
  • Senior Full-stack Developer

    2018 - 2019
    • Developed the customer wallet, integrating multiple third-party providers, using Angular, Cloud Firestore, and Firebase Cloud Functions.
    • Created the admin panel of the shipping platform, public page for the user shipments, and the shipment creation flow.
    • Built, supported, and debugged many of the features in the shipping platform.
    Technologies: Angular Material, NgRx, Express.js, Node.js, Firebase Cloud Functions, Cloud Firestore, Firebase, Angular
  • Senior Full-stack Developer

    2017 - 2018
    • Created the front-end of a course preview page, including a custom video player with playlists, built with JW Player and Angular.
    • Developed the front-end for the referral program using Angular.
    • Supported and debugged the core features of the game learning platform.
    Technologies: Mongoose, MongoDB, Express.js, Node.js, Angular
  • Senior Full-stack Developer

    2015 - 2017
    Klear Lending
    • Developed a budget management web app using ASP.NET Web API, MS SQL Server, Entity Framework, and AngularJS.
    • Created a CMS using ASP.NET MVC, MS SQL Server, and Entity Framework.
    • Designed several calculators created to facilitate the customer in making the best decision when applying for a loan. Used ASP.NET Web API and MVC and AngularJS.
    • Built the front-end of the investor self-service system in the P2P lending platform, including the primary and secondary markets and customer wallets, using AngularJS.
    • Created the landing pages of the platform and a referral program system.
    • Implemented responsive design supporting multiple resolutions and all major browsers, including Internet Explorer 9.
    • Supported and debugged the modules of the P2P lending platform.
    Technologies: AngularJS, jQuery, JavaScript, Entity Framework, Microsoft SQL Server, .NET Core, Web API, ASP.NET MVC
  • Full-stack Developer

    2013 - 2014
    BS Technologies
    • Created a car insurance application form using OCR technology, along with ASP.NET MVC, jQuery, PL/SQL, and Oracle.
    • Created an amortized loan module for an internal system, serving the banking and financial industry, using ASP.NET WebForms, jQuery, PL/SQL, and Oracle.
    • Supported the main products of the company, using ASP.NET WebForms and MVC, WCF, Classic ASP, JavaScript, jQuery, PL/SQL, and Oracle.
    Technologies: Oracle, PL/SQL, jQuery, JavaScript, Classic ASP, Windows Communication Framework (WCF), Model View Controller (MVC), ASP.NET Web Forms


  • GitHub Viewer

    An example project written in Angular and Firebase, showing a list of mock GitHub repositories that the logged-in user can choose as favorite/unfavorite and preview.

    Code: https://github.com/yuliankarapetkov/github-viewer

  • Rentals

    Sample full-stack project for apartment rentals built with Angular, NgRx/store, RxJS, NestJS, PostgreSQL, Angular Material, TypeScript, HTML and CSS.

    Code: https://github.com/yuliankarapetkov/rentals

  • Todo App With React

    Sample todo app built with React, TypeScript, Redux Toolkit, Redux-observable, RxJS, Firebase, HTML, and CSS.

    Demo: https://todo-react-bb577.web.app/
    Code: https://github.com/yuliankarapetkov/todo-react

  • Todo App With Angular

    Sample todo app built with Angular, NgRx/store, RxJS, TypeScript, Firebase, Cloud Firestore, Firebase Cloud Functions, HTML, and CSS.

    Demo: https://sample-angular-todo-app.web.app/
    Code: https://github.com/yuliankarapetkov/todo-app


  • Languages

    JavaScript, TypeScript, C#, SQL, Python, HTML, CSS
  • Frameworks

    Angular, Ionic 4, NestJS, Svelte, .NET Core, Express.js, AngularJS, React Native, Bootstrap, ASP.NET Web Forms, Windows Communication Framework (WCF), Classic ASP, ASP.NET MVC, Angular Material, Redux
  • Libraries/APIs

    Node.js, Entity Framework, jQuery, Web API, NgRx, NgRx/store, RxJS, React
  • Platforms

    Firebase, Windows, Oracle, MacOS
  • Storage

    Cloud Firestore, MongoDB, PostgreSQL, Microsoft SQL Server, Oracle SQL, PL/SQL
  • Other

    Firebase Cloud Functions, Sapper, Front-end, TypeORM, Redux-observable
  • Tools

    VS Code, Git, SourceTree, Slack, Mongoose, Expo
  • Paradigms

    Model View Controller (MVC)


  • Bachelor of Engineering Degree in Computer Systems and Technologies
    2010 - 2014
    Technical University Sofia - Sofia, Bulgaria

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