I'm Oleh
Muleha
Senior Blockchain Developer crafting the decentralized future with cutting-edge smart contracts and DeFi solutions
Based in Ukraine 🇺🇦
Know Me More
I'm Oleh Muleha, a Senior Blockchain Developer
Ethereum/Mainnet (Solidity, EVM). Over 7 years of hands-on experience building and deploying DeFi protocols, NFT platforms, trading bots, and cross-chain solutions. Strong background in smart contract security, performance optimization, and scalable system design. Proven track record of delivering high-performance dApps, on-chain trading systems, and cross-chain integrations that power real-world blockchain use cases. Adept at leading development teams, optimizing protocols for speed and cost-efficiency, and ensuring security at every layer.
Key Skills: Solana, Ethereum, Rust, Solidity, DeFi, Smart Contracts, Cross-chain, Trading Bots, Security
What I Do?
Smart Contract Development
Developing and deploying secure, gas-optimized smart contracts for public and private blockchain networks with comprehensive testing.
Smart Contract Audit
Comprehensive security audits and code reviews to identify vulnerabilities and ensure your smart contracts meet industry standards.
dApps Development
Building enterprise-grade decentralized applications with modern UI/UX, focusing on DeFi and NFT ecosystems.
Web3 Integration
Seamless integration of Web3 functionality into existing applications, connecting frontend interfaces with blockchain networks.
Blockchain Consulting
Strategic consulting on blockchain implementation, helping enterprises leverage decentralized technology for competitive advantage.
Project Management
End-to-end project management for blockchain initiatives, ensuring timely delivery within scope and budget constraints.
Why With Me?
Highly motivated and self-directed capable of managing multiple tasks in a deadline-driven, dynamic environment.
Demonstrated critical thinking and creative problem-solving skills with the ability to manage multiple issues while maintaining short response and resolution times.
Exceptional communication skills, with the ability to translate technical subject matter to non-technical audiences.
In-depth knowledge of DeFi protocols, cryptography, security, NFTs and tokens.
Adept at writing smart contracts, integrating with UI to make decentralized applications.
Fast learner and hard-working, honest developer and can work on any timezone.
Resume
My Experience
Senior Blockchain Developer
Freelancer (Remote)
- • Designed and deployed high-performance DeFi protocols and trading platforms on Solana (Rust, Anchor) and Ethereum (Solidity, Hardhat).
- • Built and maintained smart contracts for AMMs, staking, lending, and NFT marketplaces with strong focus on security and gas optimization.
- • Developed automated trading bots (sniper, arbitrage, and copy trading) with MEV protection and admin fee logic.
- • Implemented cross-chain bridges and interoperability solutions (Wormhole, LayerZero) for seamless asset transfers.
- • Led a team of developers, conducted code reviews and audits, and ensured compliance with best security practices.
Solana Developer
Blockchain Solutions
- • Developed on-chain programs on Solana using Rust & Anchor framework.
- • Built high-performance DeFi trading systems leveraging Solana’s parallel runtime (Sealevel)
- • Implemented transaction optimizations, admin fee logic, and MEV protection.
Backend Developer
Tech Company
- • Developed scalable APIs and microservices with Node.js, Express, and MongoDB.
- • Integrated backend services with blockchain APIs for trading and portfolio management tools.
- • Deployed applications on AWS and Docker, improving performance and scalability.
My Skills
My Work
CTNC Tigers
Gaming DeFi platform with NFT integration
Little Pepe Presale
Decentralized mining platform
HECTOR Dashboard
Advanced DeFi analytics dashboard
xBlox Swap
Decentralized exchange platform
Solana Casino
Blockchain-based casino platform
Crypto Portfolio
Advanced portfolio management tool
TON DEX STAKING
Advanced staking platform for TON blockchain
Client Speak
Rich Ward
CEO at ActivSwap
"|""Will has produced a fantastic delivery of what was a very difficult project. This was not a simple fork of PancakeSwap or UniSwap staying on the same blockchain but rather transferring this type of exchange onto the Tron blockchain so Will had to invent a lot of things and show a large amount of ingenuity."
Edwina Floch
Founder at Environmental Music Prize
"|""Smart and nice guy with a broad skill set. He was the only person who actually answered my question during the initial brief and set examples of luxury websites as requested."
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Get in Touch
ADDRESS
788 Hamilton Street
Vancouver, BC
Canada
https://t.me/@lioncoin99
olehdev15@gmail.com
https://github.com/blacklion-lang
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