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Nikita C.

Nikita C.

Full-Stack Software Developer

Full-Stack Software Engineer (.NET / React) I am a Full-Stack Engineer with a Bachelor's degree in Software Engineering (currently pursuing my Master's), specializing in building scalable web applications and high-performance system solutions. My primary technical stack is centered around C# / .NET for robust backend architecture and React for dynamic frontend development, backed by deep knowledge of relational databases like PostgreSQL. My technical expertise includes: • Backend & Systems: C#, .NET, Node.js, TypeScript, JavaScript, C++, Rust, Python, Java, PostgreSQL, REST APIs • Frontend: React, Vue 3, Tailwind CSS • Architecture & DevOps: Docker, Kubernetes (had experience) • AI & Agent Orchestration: Active contributor to the core development of open-source AI agent orchestrators, alongside practical experience integrating LLMs via APIs (e.g., Gemini API) into complex systems. I have a strong track record as an open-source contributor, developing complex features and resolving bugs for enterprise-level frameworks. In my recent projects, I successfully architected fault-tolerant backends using C# and seamlessly integrated them with responsive React user interfaces. I prioritize clean, maintainable code, strict conventions, and scalable architectures. Whether you need someone to maintain an established codebase, build a reliable full-stack system, or develop custom AI-driven components, I am ready to jump in and deliver high-quality results. Let's build something reliable together :)

🇱🇹Vilnius, Lithuania$10/hr95% JSS5.00 (3)Since Oct 2025

Earnings and projects

MRR
$53

Last 6 months ÷ 6

World#149,708 / 412k
🇱🇹Country#140 / 452
Revenue, last 30 days
$0

Last 6 months: $315

Total earnings
$4.9k

Billed in all: $5.2k

World#256,302 / 412k
🇱🇹Country#268 / 452
Per project
$4.9k

$315 in the last 6 months

World#35,453 / 412k
🇱🇹Country#40 / 452
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇱🇹Country#126 / 452
Projects in all
1

Across 3 contracts

0% fixed100% hourly
World#360,671 / 412k
🇱🇹Country#399 / 452

Earnings, last 30 days

$5.2kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$5.0k$5.1k$5.2k$5.3kOct 8Oct 23Nov 7

Skill rankings: Top 34% in Desktop Application

Ranked by MRR among everyone on Upwork with the skill.

  1. #564Desktop Application1,674 freelancers · 🇱🇹 #1Top 34%
  2. #1,408Product Development3,593 freelancers · 🇱🇹 #3Top 39%
  3. #3,223Web Application9,341 freelancers · 🇱🇹 #4Top 35%
  4. #9,236Web Development25,055 freelancers · 🇱🇹 #6Top 37%