k
koljou

Vladimir

@koljou
5.0(1)

Full Stack And Desktop App Developer

Belarus
English, German
About me
I'm a professional programmer with deep expertise in C/C++, Python, React, and TypeScript, experienced in commercial projects of any complexity. Core skills: Desktop apps (Qt, SDL, ImGUI) — GUI/console, networks, databases, APIs Graphics programming (Vulkan, OpenGL) — rendering, shaders Backend — high-load APIs, microservices (Django, FastAPI, Flask) Data parsing & processing from any source Automation — Bitrix24, Telegram, Google Sheets Telegram bots & Mini Apps Web-services & SaaS I create high-quality code that solves real client problems, from enterprise software to small projects. ... Read more

Skills

k
koljou
Vladimir
Offline • 
Average response time: 1 hour

See my services

Desktop Applications
I will create custom desktop applications
5.0(1)
From$25 / projectMore details
Full Stack Web Applications
I will develop a custom telegram mini app for your business
From$20 / projectMore details

Portfolio

Work experience

Upwork

Senior Full-Stack & Systems Programmer

Upwork • Freelance

Aug 2019 - Present • 6 yrs 11 mos

Developed custom desktop applications with Qt, SDL, and ImGUI — including GUI tools, network clients, and database integrations. Built high-load backend services and microservices using Django, FastAPI, and Flask. Designed real-time graphics pipelines with Vulkan and OpenGL (rendering, shaders, optimization). Created Telegram bots, Mini Apps, and automation solutions for Bitrix24, Google Sheets, and various APIs. Implemented data parsing and processing pipelines from diverse sources (web, files, databases). Delivered full-cycle SaaS and web-service development using React and TypeScript. Focused on clean, maintainable, and performant code tailored to client business needs — from enterprise-grade systems to smaller MVPs.

Etsy

Senior Software Engineer (Full-Stack & Systems)

Etsy • Full-time

Feb 2021 - Apr 2024 • 3 yrs 2 mos

Developed and maintained cross-platform desktop applications using Qt and C++ for enterprise clients in logistics and finance.

1 Reviews
5.0

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Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
1-1 out of 1 Reviews
Sort By
Most relevant
    S
    image-docs

    sergei1231

    GB

    United Kingdom

    5

    Perfect. Very happy with the results! Thanks!

    Up to $50

    Price

    3 days

    Duration

    gig

    Desktop Applications

    Helpful?
    Yes
    No