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  1. Freelancers

Serhii Umanskyi

Offer Serhii work on your next project.

Latvia Daugavpils, Latvia
8 days 12 hours back
Available for hire available for hire
on the service 8 days 12 hours
Freelancer Serhii U. — Latvia, Daugavpils. Core skill — Javascript and Typescript, Web Programming

Rating

Successful projects
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Average rating
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Rating
73
Javascript and Typescript
2939 place out of 3450
Web Programming 1
5481 place out of 6423

Skills and abilities

Programming

Portfolio


  • SnippetVault

    Web Programming
    A small service for storing useful snippets (links/notes/commands) with tags and search.

    Stack: HTML, CSS, JavaScript, TypeScript, Next.js, Tailwind CSS, NestJS, MongoDB

    … Key highlights:
    - Structured full stack single repository architecture
    - Implemented tag-based filtering, pagination and search logic

  • EcoHub

    Web Programming
    A web service for managing a personal virtual economy. Users can create projects with currencies and markets, add products to a cart, calculate prices and exchange rates in various monetary units.

    Stack: HTML, CSS, JavaScript, TypeScript, Zod, Angular, Express.js, MySQL

    … Key highlights:
    - Layered Express.js architecture: routes – middlewares – controllers – services – models
    - Shared lib with contracts: types, endpoints, Zod schemas, etc.
    - Zoneless Angular with only standalone components and Signals everywhere, mostly without RxJS.

  • StructVisor

    Web Programming
    A web service for visualizing dynamic data structures and algorithms.

    Stack: HTML, CSS, JavaScript, TypeScript

    … Key highlights:
    - Built from scratch without libraries
    - Implemented dynamic visualization logic for data structures using HTML Canvas
    - Client-oriented architecture. Server provides only static resources
    - Organized code using namespace-based separation of concern