k
klein_moretti20

klein

@klein_moretti20

Senior Blockchain and Backend Developer, Golang, Java and Smart Contracts Expert

China
English
About me
With over 10 years of experience in software dev, I specialize in building secure blockchain solutions and high-performance backend systems. My core expertise lies in Golang and Java, alongside extensive work with Solidity for smart contracts. What I offer: • Blockchain: All blockchain wallets, DApps, and Smart Contract. • Backend: Robust API development and microservices using Golang/Java. • Security: Writing secure, bug-free code for financial applications. I am adaptable to new technologies and dedicated to delivering high-quality results on time. Let's build something great together!... Read more

Skills

k
klein_moretti20
klein
Offline • 
Average response time: 2 hours

See my services

Full Stack Web Applications
I will fix java backend bugs and rest API issues
From$5 / projectMore details
Full Stack Web Applications
I will integrate any blockchain network you required
From$600 / projectMore details

Work experience

Blockchain Dev

Exchange • Full-time

Jul 2021 - Jun 2026 • 4 yrs 11 mos

Exchange Wallet Services: • Developed and maintained wallet services for cryptocurrency exchanges. • Optimized existing blockchain wallet services, analyzed and upgraded to new versions. • Researched, integrated, and tested new coins, projects, and blockchain networks. • Continuously optimized the architecture and framework of wallet services. • Tracked industry projects and emerging technologies, analyzing their potential impact. Exchange Earn Services: • Analyzed and integrated various Staking and Farming protocols. • Abstracted and designed a universal Staking/Farming framework with full-process protocol control. • Developed financial reporting systems for platform Earn funds. • Built risk control and alert services. DApp Projects: • Independently handled the full lifecycle of smart contracts, including requirement analysis, design, development, testing, demo creation, and mainnet deployment. Blockchain Node Services: • Deployed, maintained, and upgraded RPC and validator nodes for various blockchain networks.