Kirill Kirikov, Developer in Kyiv, Ukraine

Kirill Kirikov

Cryptocurrency Developer

Kyiv, Ukraine
Toptal Member Since
April 25, 2019

Kirill has over a decade of experience in development, managing teams with up to 30 members, and has released more than 100 apps. An expert in Ethereum and Bitcoin, fintech, permissioned blockchain, enterprise blockchain, and design architecture, he's worked on open source projects sponsored by the Aragon foundation for improving the Ethereum ecosystem. Kirill has developed software for clients such as Chrysler and Ferrari.

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Amazon Web Services (AWS), JavaScript, Kubernetes, Hyperledger Fabric
Amazon Web Services (AWS), Kubernetes, JavaScript, Node.js, Truffle, Solidity
Stellar SDK, Hyperledger Sawtooth, Parity Polkadot, Hyperledger, Node.js...


Kyiv, Ukraine



Preferred Environment

Git, Visual Studio Code (VS Code), IntelliJ, MacOS

The most amazing...

...thing I've implemented was a protocol for interchain assets transfer between BTC-based ad EVM-based blockchains; it was developed for Contractland DEX.

Work Experience

2019 - PRESENT

Blockchain developer

  • Created production deployment with Hyperledger Fabric.
  • Set up the Kubernetes cluster for Hyperledger Fabric using Helm charts and custom deployments.
  • Wrote JavaScript code that registers and enrolls admins and users in the Fabric CA.
Technologies: Amazon Web Services (AWS), JavaScript, Kubernetes, Hyperledger Fabric
2019 - PRESENT

Lead Blockchain Developer

  • Developed smart-contracts based casino platform.
  • Developed CLI deployment tool for versioning and managing complex smart-contracts system deployment.
  • Developed back end for casing using Node.js, Express, and Typescript.
  • Developed production environment for the back end via Kubernetes.
  • Implemented CI/CD tools in the smart-contracts and back-end development process.
Technologies: Amazon Web Services (AWS), Kubernetes, JavaScript, Node.js, Truffle, Solidity
2017 - PRESENT

Senior Blockchain Engineer/Solution Architect

  • Worked as a consultant in different fintech projects.
  • Created a crossborder remittance service.
  • Implemented a digital identity service for a notary on blockchain.
  • Developed a solution for analytics for Ethereum for Tennagraph.
  • Participated in outsource projects.
  • Developed a supply-chain solution on blockchain.
Technologies: Stellar SDK, Hyperledger Sawtooth, Parity Polkadot, Hyperledger, Node.js, JavaScript, Python, Infura, Bitcoin, Solidity, Ethereum
2019 - 2020

Solution Architect / Team Lead

Green Assets Wallet
  • Managed the agile team that was responsible for the development of the world’s first blockchain-based platform for easy validation and impact reporting of green bonds.
  • Made all architecture decisions connected with frontend, infrastructure, and backend.
  • Collaborated with chromia blockchain core development team to have smooth mainnet deployment.
  • Consulted with the client about the business application of the blockchain, development processes, and handled the requirement management and some business analysis.
  • Collaborated with the stakeholders to understand the requirements and build the most important features effectively.
Technologies: Amazon Web Services (AWS), PostgreSQL, JavaScript, Node.js, Blockchain, React
2018 - 2019

Senior Blockchain Developer/Researcher

  • Developed the protocol for interchain transfers of assets between Ethereum and Bitcoin for Contractland.
  • Integrated Bridge between Ethereum and Bitcoin into the decentralized exchange.
  • Developed architecture of bridge between Ethereum and Bitcoin.
Technologies: React, Bitcoin, Ethereum, Python, Solidity
2012 - 2017

Lead iOS Developer and CTO

Seductive Mobile
  • Co-founded a mobile development studio.
  • Worked as the CTO; grew and led a team of 25 developers: iOS, Android, and back-end.
  • Participated in the development of 50 mobile applications both for iOS and Android.
  • Implemented CLEAN architecture approach in iOS and Android teams.
  • Implemented CI/CD processes in mobile teams.
  • Developed augmented reality projects with Unity3D, OpenCV.
Technologies: SQL, MongoDB, Node.js, Swift, Objective-C, C++
2011 - 2012

Senior Developer

  • Developed media and navigation system for Chrysler and Ferrari.
  • Developed navigation system front-end for vehicles.
  • Developed voice recognition system front-end for vehicles.
  • Worked with Bluetooth protocol to create a media player that can play music from mobile phones and mp3 players.
  • Worked with FM/AM/Sirius to enable radio in media system for vehicles.
Technologies: Lua, C++, Adobe Flash, AS3
2010 - 2011

Game Developer

Catalyst Apps
  • Created Facebook games with 1M MAU.
Technologies: Starling, MySQL, PHP, Adobe Flash, ActionScript 3


Green Assets Wallet

The Green Assets Wallet is the world’s first blockchain-based platform for easy validation and impact reporting of green bonds.

I've architected and developed a solution that allows users to transfer BTC to Ethereum and back in a decentralized way. Here is a link to the research article:

This project was a part of Contractland's decentralized exchange project.

R&D of Blockchain Notary
I was part of the team that develops blockchain notary and identity service on the blockchain. Here is a link that describes our research.


I was part of the team that created a continuous token model for decentralized organizations. It was a platform that was built to have responsible crowdfunding through the Curation Market.

Web3 Hackathon Prize from ChainLink
My team and I won the 3rd place in the web3 Berlin hackathon in from sponsor called ChainLink. Here is the demo:



Python, JavaScript, Swift, Solidity, TypeScript, ActionScript 3, AS3, Lua, Objective-C, SQL, HTML, PHP, C++


Django, Truffle, Symfony, Flask, Parity Polkadot, Qt


Flash, Sentry, Amazon Simple Email Service (SES), NGINX, Logstash, Kibana, Grafana, IntelliJ, Adobe Flash, Stellar SDK, Sketch, Figma, Git, Google Kubernetes Engine (GKE), AWS SDK, Amazon EKS, NPM


Ethereum, Docker, Linux, MacOS, Blockchain, Amazon EC2, Kubernetes, Hyperledger, Hyperledger Composer, Hyperledger Fabric, Hyperledger Sawtooth, Amazon Web Services (AWS), Visual Studio Code (VS Code)


Amazon S3 (AWS S3), PostgreSQL, MongoDB, MSSQLCE, Redis, Elasticsearch, MySQL


Bitcoin, Cryptocurrency, Cryptography, Ethereum Smart Contracts, Smart Contracts, Infura, Protocol Design, Code Architecture, Photoshop CC 2019, PIP, Algorithms, Augmented Reality (AR), Kubernetes Operations (Kops), Bitcoind, Ethereum Open Source


React, Vue, Node.js, Amazon EC2 API, Vue 2, Starling, Vuex, Fabric


Clean Architecture, Clean Code, Requirements Analysis


2007 - 2012

Master's Degree in Computer Science

Kharkov National University. Faculty of Mechanics and Mathematics. - Kharkov, Ukraine



Improving Communication Skills






Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization



Structuring Machine Learning Projects



Neural Networks and Deep Learning

Coursera Course Certificates