Lead Java Developer with Web3 and Decentralized Tech Experience

Opened on January 15, 2026

Location: Fully Remote
Working Rate: $70-100/hr
Type: Freelancing

Introduction

We are building an innovative cryptocurrency trading platform aimed at providing seamless and secure trading experiences for users worldwide. We're seeking talented professionals to help us bring this vision to life.

Responsibilities

  • Develop and optimize backend services using Java for our trading platform

  • Integrate blockchain networks and APIs to enable secure transactions and wallet management

  • Design and implement smart contract interactions for trade settlement and escrow functionalities

  • Collaborate with frontend developers, security teams, and blockchain engineers

  • Ensure platform scalability, security, and high performance

  • Write clean, maintainable, and well-documented code.

  • Stay updated with emerging blockchain technologies and best practices

Requirements

  • Proven experience as a Java Developer, with 5+ years in backend development

  • Strong understanding of blockchain technology and Web3 integrations

  • Experience working with smart contracts on platforms like Ethereum, Binance Smart Chain, or others

  • Familiarity with blockchain wallets, APIs, and decentralized exchanges

  • Knowledge of cryptography, security best practices, and transaction validation

  • Experience with RESTful APIs, JSON-RPC, or other blockchain communication protocols

  • Excellent problem-solving and teamwork skills

  • Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience)

Nice to Have

  • Experience with Solidity or other smart contract languages

  • Knowledge of decentralized finance (DeFi) protocols

  • Familiarity with cloud services and containerization

What We Offer

  • Competitive salary and benefits

  • Opportunity to work on innovative blockchain projects

  • Flexible working hours and remote work options

  • Collaborative and passionate team environment

More Than Just a Freelance Position

This is a strategic and vital role within our project, far beyond a typical freelance gig. We are seeking a skilled and committed developer who understands that building a cutting-edge cryptocurrency trading platform requires more than just coding — it demands ownership, innovation, and a deep understanding of security, scalability, and user experience.

Your contributions will have a direct and lasting impact on the platform’s success, helping us create a trusted environment for users worldwide. We’re looking for someone who sees this as an opportunity to be a core part of a transformative project, where your expertise shapes the future of digital finance.

This isn’t a temporary or simple task; it’s a chance to be a key player in a meaningful venture that aims to revolutionize how people trade and interact with cryptocurrencies. If you’re passionate about making a difference and eager to take on a role with real responsibility, we want to work with you.