makshladun

Full Stack Web3 / Typescript Developer

I am a Full Stack Web3 Engineer with several years of experience building blockchain infrastructure, cross-chain systems, and secure wallet solutions. I’ve worked with EVM, Solana, Bitcoin, Dogecoin, XRP and other networks, developing transaction builders, signer solutions, HD key-derivation libraries, and multi-chain wallet architecture.

My background includes creating cross-chain arbitrage bots, integrating bridges (like cBridge), building APIs and backend services with Express.js, and developing full-stack applications in React, Next.js, and TypeScript. I have hands-on experience with Hardhat, Truffle, Ganache, Mocha tests, and I’m familiar with Solidity smart contracts.

I'm looking for a role where I can contribute to Web3 products involving wallets, blockchain integrations, multi-chain tooling, backend services, or full-stack development — ideally within teams building next-generation decentralized technologies.


Experience: 5 years

Yearly salary: $58,000

Hourly rate: $30

Nationality: 🌏 Remote

Residency: 🌏 Remote


Experience

Full Stack Web3 / Typescript Developer
Chainza
2022 - 2024
At Chainza, my activities included following: Developed a secure signer solution, as well as transaction preparation, sending, and tracking for blockchain networks such as EVM, Solana, Bitcoin, Dogecoin, XRP, and others. Developed an HD key derivation library supporting 20 blockchains, custom derivation paths, wallets, and cryptographic schemes (ed25519, secp256k1, secp256r1). Contributed to the development of a Web3 wallet, implementing modular architecture, dynamic feature assembly and an iframe-based security model. Implemented Cross Chain Wallet platform from scratch to make the user experience with cross-chain interactions frictionless Worked with cBrige cross-chain API and integrate their functionality into the project Integrated different EVM networks such as Polygon, Fantom, Binance SC, and others into web applications Migrate an NFT project from Godwoken V0 to V1 (EVM layer on Nervos blockchain)
React Developer
Noviy Mir
2020 - 2021
At this specific position, I have completed such tasks: Worked with team to migrate legacy company website to React Developed and maintained critical components of e-commerce website, including shopping cart, quick view and checkout page, using React components. Used Axios, RT Query, TypeScript, React Hooks, React Forms, React Router Used state management: redux-toolkit.
Web Developer
Freelancer
2019 - 2020
At my first position as a developer, I was doing broad range of tasks: created good-looking and responsive webpages was making websites more interactive by adding sliders, animations was troubleshooting misc JS bugs related to API communication, also fixing visual html/css bugs

Skills

backend
blockchain-engineer
ethereumjs
ganache
hardhat
nextjs
node
postgres
react
remix
solidity
sql
tailwind
typescript
web3js
full-stack
english
ukrainian