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  1. Freelancers

Dmytro Tyshchenko

Offer Dmytro work on your next project.

Poland Tarnobrzeg, Poland
3 months 6 days back
Available for hire available for hire
on the service 3 years
  • CSS3 Media Queries
  • express.js
  • React Native
  • Nestjs
  • React Redux
  • HTML/CSS/JavaScript/jQuery
  • ReactJS / NextJS / Redux / MobX
  • HTML5/CSS3/SCSS/SASS
  • React/TypeScript
  • javascript
  • React
  • TypeScript
  • Javascript/TypeScript
Freelancer Dmytro T. — Poland, Tarnobrzeg. Core skill — Web Programming, Gaming Apps

Rating

Successful projects
No data
Average rating
No data
Rating
291
Web Programming 2
1998 place out of 6430
Gaming Apps
90 place out of 548

Language proficiency level

Українська Українська: fluent
English English: advanced
Polski Polski: intermediate

CV

Full-Stack Developer | 3+ Years of Experience


Detail-oriented Software Engineer with a background in Game Development, specializing in building complex, high-performance interactive systems. I bring a unique perspective to web engineering, utilizing Finite State Machines (FSM) for robust state management and deep-level performance optimization. Proficient in React, TypeScript, and C#, with a proven track record of leading Agile teams to deliver scalable, responsive applications 


LinkedIn

GitHub

Skills and abilities

Programming

Photo, Audio & Video

Architecture


Mobile development

Administration

Portfolio


  • 11 USD

    HPSMESRC

    Cybersecurity & Data Protection
    HPSMESRC — example of freelancer's portfolio work in category Cybersecurity & Data Protection
    Researched and implemented encryption in the system of residual classes using the Hierarchical Polynomial Symmetric Method (HPSMESRC).

    Developed prototypes in C# (.NET Framework, WPF) to evaluate algorithmic efficiency and practical applicability.

    … Applied mathematical methods (number theory, calculations) and algorithmic design to validate the cryptographic model.

    Conducted testing, debugging, and performance analysis of cryptographic components.

    Focus: cybersecurity, encryption algorithms and applied mathematics.

    Key technologies: C#, .NET Framework, WPF, Git, Algorithms, Cryptography, Cybersecurity
  • 500 USD

    Simple Restaurant Site (Full-Stack Web Application)

    Website Development
    Simple Restaurant Site (Full-Stack Web Application) — example of freelancer's portfolio work in category Website Development
    Developed a high-performance, cinematic restaurant web application with a focus on seamless UX, secure content management, and optimized backend delivery.

    Performance-First Migration: Migrated from a decoupled SPA to Next.js (SSR/ISR), resulting in a 40% faster LCP and near-perfect Lighthouse scores (98/100).

    … Admin Dashboard & Security: Built a secure management panel with JWT-based authentication (Access/Refresh tokens in HTTP-only cookies) and automated silent renewal. Implemented Protected Routes and NestJS Guards to enforce strict authorization for administrative tasks.

    High-Performance Backend: Architected the API using NestJS with Fastify and Mercurius, leveraging JIT compilation for GraphQL schema execution to achieve minimal response latency.

    Granular Caching Strategy: Engineered a custom caching layer using Redis and NestJS CacheModule, reducing database query latency by 85% (from ~150ms to

Activity

  Latest proposals 1
Looking for a web developer with Node, Python Experience.
1200 USD