KK
United Kingdom
UTC+00:00 (Europe/London)
Kiril K.
Solution Architect / Blockchain Developer: Ethereum/Solidity, Hyperledger, Multichain
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£79,900£63,900/YEAR
20% discount on yearly basis
All rates are indicative, annual rate includes 20% discount
£6,000/MONTH
£40/HOUR

Expertise

Core technologies

Python 6 years
Java 9 years
JavaScript 9 years
Node.js 3 years

Other technologies

Solidity
Cryptocurrency
Smart Contracts

Portfolio Highlights

Sep `18 – Present
1 year

Marco Drost

Develop a solution that will allow owners of documents to confirm, transfer and share their ownership and have information of the latest signed document on the blockchain.The development of backend and frontend, development and audit of Ethereum smart contracts, blockchain consulting and business analysis.

Tech Lead

Managing the dedicated team on the project

Java
JavaScript
Ruby on Rails
Ethereum
Vue.js
Web3.js
Jan `18 – Present
2 years

Sofie Blakstad

The financial trust platform for Scandinavian small business enterprises that builds confidence and incorruptible transparent network between customers, vendors and banks. Supported by blockchain.

Tech Lead

Managing the Dedicated team up to 10 developers, preparing the solution architecture, participate in cryptolayer development.

Python
Ruby on Rails
Blockchain
Jan `18 – Present
2 years

Own startup

RecycleChain is an open market for recyclables. Core of the system is the blockchain database, that’s stored and synced between all users. It will hold next data: 1. Amount, type and price of waste in possession of each player 2. Ownership transactions in a form of smart contracts 3. Trading balance in the internal blockchain currency (cryptocurrency)

Lead Blockchain Developer

Lead backend and blockchain developer on the project. I was responsible for core system development - the blockchain database, that's stored and synced between all users.For the blockchain tech was chosen Ethereum, as a widely used technology that also allow the smart contracts functionality from the box. There’s an additional layer on node.js for registrations and storing additional info. Backend provides API for the mobile app.

Ruby on Rails
Swift
Ethereum
Solidity
Jan `18 – Present
2 years

Taras Kornichuk

We integrated Bitcoin and Ethereum blockchains via middleware. The purpose of it to act as a centralized smart exchange with the liquidity of Tokens and BTC that are held inside. Price discovery of exchange will be done by formula, so no more bids/asks.

Tech Lead, Blockchain Engineer

I was responsible for token and a smart contract development that connects emission to the mining process of the farm. So whenever a bitcoin is mined – a token value changes. In this way bitcoin plays the previous role of gold in the paper money emission. Connection was built on BTC Relay tech.

Bitcoin
Ethereum
Solidity
Nov `18 – Jan `19
2 months

Peter He

Protocol for Interchain Token Transfers between Ethereum and Bitcoin.The purpose of this proposal is to establish in details the mechanism for permission-less transferring of assets between Ethereum and Bitcoin. Usecases: Cross-chain transfer between Ethereum and Bitcoin is useful in fields such as: Stable coins, Decentralized exchange, Financial derivatives: More info on https://www.contractland.io/

Lead Blockchain Engineer / Researcher

I was responsible for designing the tech solution for Terra-Bridge protocol, development and publishing it into production. Now, this project is open -sourced and I am the main contributor.

Bitcoin
Python
React.js
Ethereum
Jan `18 – Feb `18
1 month

Own blockhain project

Crypto Kitties had huge success in the Ethereum network. It game mechanics is pretty simple, but with the concept of ownership and commerce, it was enough to drive people. We'd like to test same mechanics in the traditional gamification space – as a motivational tool for good moves and work.

Tech Lead

This project was developed at London Blockchain Week Hackathon. I was tech lead and lead blockchain developer on this project ( used ERC 721 Token)

AngularJS
Ruby on Rails
Ethereum
Solidity
Nov `17 – Dec `17
1 month

Vitalik Ermakov

We’ve audited a set of smart contracts for the crowdsale. Logics included presale, gnosis multisig wallet, lockdowns and pauses. There was a set of 38 issues found. 3-4 high impact vulnerabilities, 5-6 medium, else low and notes.

Lead Blockchain Engineer

Provided the security audit of 9 smart contracts for their upcoming ICO. BitRent (RNT) is the blockchain platform meant to attract commercial and residential property investments at an early stage.The resulting report in the excel included 37 found issues.After the rework, new version of contracts was checked and contained no found vulnerabilities. Presale was launched.

Ethereum
Solidity

About me

12+ years dev experience, managing team (up to 30 specialists), released more than 100 apps. Worked on FinTech innovative projects supported by government institutions in Sweden and Denmark. BUSINESS COMPETENCIES: E-wallets / Web3 products development / remittance services / securities management on blockchain /digital banking solutions / regtech / assets tokenization & management / financial escrow platforms / DeFi

App/Blockchain Development agency #246

10-50
Kyiv/Ukraine
GMT+2
Core Expertise
AngularJS
Bitcoin
Java
JavaScript
Kotlin
Node.js
PHP
React.js
React Native
Ruby on Rails
Machine learning Engineer
Payment Gateway Integration
Swift
Ethereum
Solidity
Cryptocurrency
Smart Contracts
Blockchain
Industries
Business & Productivity, Logistics & Transportation, E-Commerce & Retail, Banking & Finance, Booking & Rent
We're using blockchain, mobile, web and machine learning for decentralization, process optimization and better service. Our team at 4ire Labs specializes in custom development on the most popular blockchains – Bitcoin, Ethereum, Hyperledger. The main goal of 4ire Labs is developing web, mobile, Ðapps for improving economies and make a transparent, reliable and secure system for governance and management. Providing such services: - Сustom development on popular blockchains - Smart Contracts Development & Audit - App Development - Consulting