Banner Image


  • App Development
  • App & Mobile Programming
  • Mobile App Marketing
  • Programming
  • React Native
  • Android
  • iOS
  • API
  • JavaScript
  • Python
  • React Native App Development
  • Cloud Computing
  • React
  • iOS App Development
  • Object Oriented Programming

Sign up or Log in to see more.


  • Node/Nest js API development

    $50/hr Starting at $1K Ongoing

    Dedicated Resource

    Integration of user-facing elements developed by front-end developers with server side logic. Writing reusable, testable, and efficient code with Node js, Nest js Design and implementation of low-latency,...

    APIAPI DevelopmentCloud ComputingJavaScriptNode.js
  • React front-end development

    $50/hr Starting at $1K Ongoing

    Dedicated Resource

    Strong proficiency in JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, and Babel Complete understanding of ReactJS and its main fundamentals like JSX, Virtual...

    Amazon CognitoAnt DesignChart.jsCSSFront End Development
  • Python FastAPI expert

    $50/hr Starting at $30 Ongoing

    Dedicated Resource

    Thanks to Starlette and Pydantic. API creation, including declarations of path operations, parameters, body requests, security  Interactive API documentation and exploration web user interfaces.  Security...

    APIAPI DevelopmentAPI DocumentationPythonRestful Api Test
  • Fitness, Female workout app development

    $35/hr Starting at $1K Ongoing

    Dedicated Resource

    Fitness app development with basic features that a fitness app must have in order to be more user-friendly and accommodating. Comfortable working with UI/UX designers Development App using React Native,...

    AndroidAndroid Bug FixingApp & Mobile ProgrammingApp DevelopmentDjango
  • Serverless Application, Microservices

    $40/hr Starting at $1K Ongoing

    Dedicated Resource

    Experience with AWS services common to serverless architectures (AWS Lambda, API Gateway, DynamoDB, IAM, etc.) Experience building REST APIs and other common application architectures on the above services...

    APIAPI DevelopmentAWSAWS API GatewayAWS CloudFormation
  • Solana NFT marketplace development

    $55/hr Starting at $10K Ongoing

    Dedicated Resource

    - Experience in developing Blockchain applications or proofs-of-concept (POC) using NFT. Rust, Ethereum Solidity or other proprietary language and APIs. - Able to handle cryptocurrency development/crypto...

    AlgorithmsBlockchainContractsEthereumMarketplace Web Design

Sign up or Log in to see more.


Full stack developer with certified experience

My name is Korobchenko Oleksandr from Ukraine.
I chose software engineer as my career because I believe I'm good at this and can be a cool partner for customers.
I am always honest and I am never afraid of doing hard work.
I have a burning desire to put together well-written code that helps to create advanced applications which are fit for purpose, functionally correct and meets the user's precise needs. I have a track record of using modern technologies to bring software products to life. I have a strong delivery track record, and excellent problem-solving skills and high interest in learning new things.
I have multi-tasking skills and ability to work in a fast-paced, deadline-oriented and complex environment.
On a personal level I am loaded with energy and passion.

Work Terms

40-50 hours/week.
Any Time zone available.