Blockchain DeveloperBlockchain Developer

Wellington

ID Verified

2100/mo

Manaus, Brazil

Looking for Full-time

8 hours/day

Availability: EU timezone

$2100

per month

($12/hour)

Member since August 2025

Profile Description

Blockchain developer specializing in smart contract development and decentralized applications. Experienced in Ethereum, Solidity, and Web3 technologies. Proficient in blockchain architecture, consensus mechanisms, and security best practices. Skilled in developing and auditing smart contracts. Strong understanding of cryptography and distributed systems. Passionate about building decentralized solutions.

Top Skills

JavaScript (ES6+) · 4 years

Skills & Expertise

Skill Levels Explained:

• Beginner: <1 year

• Intermediate: 1-3 years

• Advanced: 3-5 years

• Expert: 5+ years

💡 Hover over any skill level to see exact years of experience

Software Development

JavaScript (ES6+)Advanced

Work Experience

Blockchain Developer

Mercado Bitcoin

Mar 2021 - Oct 2024

Key Achievements:

Developed smart contracts for DeFi protocols handling millions in transactions. Implemented security best practices preventing vulnerabilities in smart contracts. Built decentralized applications integrating with multiple blockchain networks. Conducted code audits identifying and fixing critical security issues. Optimized gas costs reducing transaction fees by 40%.

SolidityBlockchain DevelopmentSmart ContractsWeb3.jsEthereumJavaScript (ES6+)

Quick Stats

Age28 years

English LevelFluent

Other Languages

Portuguesefluent

ID VerificationVerified

Certifications

Certified Blockchain Developer

Education

Bachelor of Science in Computer Science

Universidade Federal do Amazonas

2017 - 2021