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Oleh L
@olehlekh
Level 2
Delivering Decentralized Solutions, Tailored to Your Needs
Ukraine
English, Ukrainian
About me
I am a senior Full-Stack AI & Blockchain Engineer with extensive experience in Rust-based and EVM-based ecosystems, including Solidity and Zero-Knowledge Proof technologies. My expertise spans DeFi protocol development, smart contract auditing, and blockchain system architecture, with a proven track record of delivering secure, high-impact decentralized applications. And AI Developer specializing in OpenAI integrations, OpenClaw AI agents, n8n automation, and custom chatbot development.
Skills
Oleh L
$50/hour
Offline •
Average response time: 1 hour
See my services
Decentralized Applications (dApps)
I will be blockchain developer for dapp, smart contract, presale, staking and launchpad
Trading Bots Development
I will build polymarket bot, pumpfun bundle launch, amm, holder bot on solana, bsc
Want to work on an hourly basis?
Tell Oleh L what you need.
$50
/
hourPortfolio
Work experience
Oleh Lekh
Oleh Lekh • Full-time
Feb 2023 - Jun 2024 • 1 yr 4 mos
Worked as a freelance blockchain developer building and deploying smart contracts and decentralized applications across multiple blockchain networks. Developed secure smart contracts, integrated Web3 functionality, and implemented DeFi features such as token contracts, liquidity pools, and trading interactions with decentralized exchanges. Collaborated with clients to design blockchain solutions, optimized contract performance, and ensured security through testing and audits.
76 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 76 Reviews
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Most relevant
maboni
South Africa
We would like to extend our sincere appreciation to Oleh for the outstanding work he has delivered. Oleh demonstrated exceptional skill, professionalism, and dedication throughout the entire process of building our smart contract. Not only did he meet the deadline, but he delivered ahead of schedule...
Helpful?
henry_lamb25
Repeat Client
United Kingdom
Oleh is a great developer and an expert in Kalshi trading bot development. He delivered the work quickly and professionally. Highly recommended!
Seller's Response
Helpful?
gustap_polish
Repeat Client
Poland
Oleh delivered a well-built OpenClaw AI agent exactly as requested. Communication was clear, and the work was completed on time. Professional and reliable—highly recommended.
Seller's Response
Helpful?
danielfantom430
Repeat Client
Italy
Oleh L's blockchain development skills are TOP-NOTCH! His work is marked by professionalism and meticulous attention to detail, really exceeding expectations. He is really expert about launchpad. Collaborating was a breeze thanks to his fluent communication and speedy responses. 🙌
Helpful?
jack3679
Repeat Client
United Kingdom
Oleh developed a profitable PumpFun bot for my project. The implementation was smooth, and everything works as expected. Great experience overall.
Helpful?
