shhmeks

Solidity Developer | Security Smart Contract Auditor

Blockchain developer and smart contract auditor with 3+ years of hands-on experience in the Web3 industry. I've contributed to the successful delivery of 5+ blockchain development projects and participated in 30+ Solidity smart contract audits - helping ensure security, reliability, and performance across a wide range of decentralized applications.

My experience spans across smart contract development, testing, and deployment on EVM-compatible chains including Ethereum, BNB Smart Chain, Polygon, and Avalanche. I’ve built and optimized a variety of contracts: ERC-20 tokens, NFTs, vesting schedules, staking, sales pools, airdrops, multisig wallet, and upgradeable proxy contracts (ERC-1967).

In addition to writing efficient and secure Solidity code, I’m proficient in using tools like Truffle, HardHat (TypeScript), and I support integration with front-end technologies such as React.js and Next.js. I follow secure coding standards, optimize for gas, and ensure code quality through testing and auditing.

As a smart contract auditor, I’ve developed a strong eye for identifying vulnerabilities, ensuring functionality, and offering actionable insights through comprehensive audit reports.

Experience: 3 years

Yearly salary: $50,000

Hourly rate: $35

Nationality: 🇺🇦 Ukraine

Residency: 🇺🇦 Ukraine

Experience

Middle Blockchain Developer

Applicature

2023 - 2025

In this role, I took ownership of developing, deploying, and optimizing smart contracts across EVM-compatible blockchains including Ethereum, BNB Chain, Avalanche, and Polygon. I worked on the smart contract side of several projects and implemented advanced contract patterns such as proxies (ERC-1967), and multisig wallets. I also began integrating security auditing principles into development workflows. Key Highlights: • Designed and implemented complex smart contract systems. • Experience with advanced Solidity patterns and upgradeability mechanisms. • Conducted gas usage optimization, code refactoring, and vulnerability prevention. • Collaborated across team to deliver production-ready blockchain features. • Participated 5+ blockchain projects.

Security Smart Contract Auditor

Vidma

2022 - 2025

As a smart contract auditor, I am responsible for in-depth security analysis, functional verification, and code optimization for Solidity smart contracts. I identify vulnerabilities such as reentrancy, and access control flaws, while also providing guidance on improving gas efficiency and code quality. I use a combination of manual review, testing and automated tools, and have contributed to over 30 smart contract audits across various projects. Key Highlights: • Performed manual and automated audits of 30+ smart contracts. • Identified and mitigated critical vulnerabilities across diverse contract types. • Wrote and maintained comprehensive unit test suites using HardHat. • Generated detailed audit reports and offered actionable feedback to developers. • Specialized in best practice enforcement.

Junior Blockchain Developer

Applicature

2021 - 2023

As a junior blockchain developer, I contributed to multiple dApp projects, implementing and testing various smart contract types including ERC-20 tokens, NFT contracts, and staking mechanisms. I focused on learning best practices for Solidity development, testing with Truffle, HardHat in TypeScript, and ensuring adherence to security standards. My responsibilities included contract development, gas optimization, and supporting front-end teams during integrations. Key Highlights: • Developed and deployed smart contracts on testnets and mainnets. • Assisted in creating contracts for airdrops, vesting schedules, and DAOs. • Supported front-end developers with smart contract integration (React, Next.js). • Improved code quality and followed secure coding guidelines.

Skills

blockchain

dapp

ethereum

evm

git

hardhat

javascript

nextjs

react

security

smart-contract

truffle

typescript

web3js

solidity

english

russian

ukrainian

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