English:
Upper Intermediate
Vitaliy O.
Vetted by YouTeam
Ukraine
UTC +02:00
Ukraine/Kyiv
English:
Upper Intermediate
I am an experienced Full-Stack JavaScript Developer, Architect and Ruby on Rails Expert.
I have been working at Brocoders since 2017. I am a professional developer with a strong technical skill-set and commitment to every new project. I quickly learn and adapt to work in a new team. It is worth mentioning that I feels when the business expects good code, and when a quick solution. I am great team player, communicative, adaptable; well organized, quality-oriented and pays appropriate attention to details.
Want to hire this engineer?
Check if Vitaliy is availableExpertise
Years of commercial development experience
7 years of experience
Core technologies
Other technologies
Project Highlights
The name of the project is under NDA
May `22 - May `24
2 years
NFT trading platform with marketplace for cryptocurrency exchange and trading system.
Responsibilities & achievements
- I wrote NFT solidity smart-contracts for Polygon network (ERC-721,ERC-1155). - I worked with metadata saved on IPFS within NFT.Storage. - I used Hardhat, ethers.js and Open Zeppelinlibs for backend.
The name of the project is under NDA
Jan `21 - May `22
1 year
An EU blockchain-based supply chain system to track and trace all data connected with goods (vegetables and meat) state: Genetics, Medical data, origin, transporting, certificates, etc with an additional toolkit for producers of goods.
Responsibilities & achievements
- I developed blockchain infrastructure. - I was responsible optimization of the work of the blockchain part of the project by transferring most of the business logic to the backend server-sid. - I wrote scripts fo migrating Postgre SQLDB to MSSQL Server via database dumps under limited access conditions.
The name of the project is under NDA
Sep `19 - Sep `20
1 year
Blockchain-powered solution for a leading consortium of Dutch food supply chain stakeholders. We were involved in building comprehensive architecture, design, and implementation of a private permissioned blockchain network for food traceability. This system empowers producers, processors, validators, and retailers to track their supply chains for specific products in real-time.
Responsibilities & achievements
- I created a boilerplate for deploying multi-channel HyperledgerFabric for HL Composer using bash, templates, Docker. - I increased the efficiency and performance of the loaded part of blockchain projects. I had to figure out the features of CouchDB. - I developed submodules for servicing blockchain projects on HLComposer starting from deployment and ending with backup/restoration of blockchain records.
The name of the project is under NDA
Sep `18 - Sep `19
1 year
Done some UI changes and fixes in the system for managing doctor's patients' documents, appointments, and lab tests. I also participate in developing dynamic forms for the admin panel of that system.
Responsibilities & achievements
- I successfully wrote the frontend of a dynamic admin panel in ReactJS in Typescript using MobX to replace Redux. - I developed a web application for a startup about B-n-B booking management.
Education
Higher education in Computer Science
Agency
50-100
GMT
Sumy/Ukraine, Tallinn/Estonia
Core Expertise
Industries
Education & Science, Logistics & Transportation, E-Commerce & Retail, Banking & Finance, Advertising & Marketing, Social Media & Communication, Healthcare & Medicine
Want to hire this engineer?
Check if Vitaliy is available