Maksim Voroshilov
Senior Full Stack & Blockchain Engineer
Salary / Daily rate
Thale, Germany
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Senior Full Stack Developer with 8+ years of experience building scalable and secure applications. Strong expertise in React, TypeScript, Next.js, NestJS, Node.js, Golang, microservices, and high-performance backend APIs. Professional experience with Ethereum (Solidity), Hyperledger Fabric, Cosmos SDK, Quorum, and CosmWasm. Extensive backend engineering using Go (Golang) with Echo framework for RESTful microservices. Proven ability to lead architecture, implement secure distributed systems, and deliver production-grade platforms.
Work experience
Senior Blockchain / Full Stack Developer
BCV
Jan 2023 - Mar 2025
2 years 3 months
Лен Стокгольм, Швеция
Designed and developed private blockchain architecture for enterprises (banks, airlines) using Hyperledger Fabric and Quorum. Built microservices with NestJS & TypeScript, integrating with blockchains for business logic. Contributed to React.js frontend dashboards for enterprise clients. Implemented secure authentication and role-based access controls.
Senior Blockchain / Full Stack Developer
Wisdomise
Jan 2022 - Dec 2022
1 year
Dubai - United Arab Emirates
Developed trading services for CEX (Binance, KuCoin) and DEX (Uniswap, PancakeSwap) in Go and Node.js. Collaborated with AI team to build a scalable Kafka-based architecture. Delivered React + TypeScript UI for trading dashboards. Implemented Ethereum smart contracts with Solidity, Ganache, Truffle, and OpenZeppelin.
Lead Developer, Co-Founder.
Bettery
Aug 2019 - Dec 2021
2 years 5 months
Вьетнам
Led a 3-person dev team, overseeing end-to-end architecture and delivery. Built and deployed smart contracts (Cosmos SDK, Solidity) and ran blockchain nodes. Developed Angular + TypeScript frontend and backend microservices (Express.js). Deployed infrastructure on AWS, ensuring scalability and security.
React Developer
ANROM Social Business
Jul 2018 - Aug 2019
1 year 2 months
Ukraina, Moscow Oblast, Russia, 143325
Developed numerous different plugins for Jive, Igloo, and Telligent platforms. I worked closely with the team from Ukraine and the USA. Experience with product and product versioning.
Angular Developer
Bunlimited
Oct 2017 - Jul 2018
10 months
Cà Mau, Ca Mau, Vietnam
Developing informational web pages for cryptocurrencies with Angular 4+ and TypeScript. Cryptosorter.com,the basic goal to make a crypto wallet to share between investors and help them to sort currencies between Likes and Dislikes. In my responsibilities included developing Front-end and Back-end with Firebase and Firebase SDK.
Freelance Developer
Freelance
Dec 2016 - Oct 2017
11 months
Ukrainka, Kyiv Oblast, Ukraine, 08720
Working with small web development projects here and there.
Education
Національний університет харчових технологій (НУХТ)
Master's degree, Енергопостачання
Licenses & certifications
Hyperledger Expert
Issued: Jun 2023
Node JS: Advanced Concepts
Issued: Jul 2020