Blockchain Developer

Posted 3 weeks, Ends in 4 months

^{Flexible budget available.}

$4,800.00 USD

Bids: 3 Interviews: 0

About the Role

We are seeking a talented Blockchain Developer to join our team and contribute to the development of our decentralized platform. In this role, you will focus on creating and optimizing smart contracts, integrating blockchain features, and ensuring the platform operates efficiently and securely. You will work closely with both frontend and backend teams to build scalable, secure, and performant blockchain solutions.

What You Will Do

● Design, develop, and deploy smart contracts for token management, staking, and decentralized finance (DeFi) functionalities.

● Integrate Uniswap V2/V3 SDK and third-party protocols like GMX or dYdX for seamless decentralized trading features.

● Collaborate with cross-functional teams to integrate blockchain technology with frontend and backend systems.

● Optimize smart contract gas efficiency, performance, and security.

Write secure, maintainable, and gas-efficient smart contract code, ensuring comprehensive test coverage and audit readiness.

● Ensure secure token swaps, staking interactions, and liquidity pool management across the platform.

Responsibilities

● Develop and deploy smart contracts, including token contracts, staking contracts, and DeFi features.

● Integrate blockchain functionality with the frontend using ethers.js or viem.

● Implement decentralized trading using Uniswap V2/V3 and GMX/dYdX for perpetual trading.

● Optimize the platform’s blockchain infrastructure for scalability and security.

● Ensure smooth integration of decentralized storage solutions and token management across the platform.

Requirements

● 3+ years of experience as a Blockchain Developer, with strong expertise in Solidity and Ethereum.

● Hands-on experience with Uniswap V2/V3 SDK and integrating DeFi protocols like GMX or dYdX.

● Strong understanding of blockchain principles, consensus algorithms, and security best practices.

● Experience with Hardhat or Foundry for smart contract testing and deployment.

● Proficiency with ethers.js or viem for blockchain interaction and frontend integration.

● Experience with Slither or other static analysis tools for contract audits and security.

About the job

Posted Job

18 May, 2026

Deadline

28 Oct, 2026

Experience level

Expert

Project Scope

Medium

Job Longevity

3 to 6 months

Location

100% Remote job

Skill and expertise

PHP
CSS
Wordpress
Web
AI
Python Developers

3 - Freelancers are bidding on this job

Jason Lin

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Singapore

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Sr. Full Stack Developer | React, Next.js, Node.js, Python, AI, SaaS

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Senior Full-Stack Developer specializing in React, Next.js, Node.js, Python, AI integrations, and SaaS development. I build scalable web applications, custom platforms, automation systems, a...

ivashchenko yevhenii

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Ukraine

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Full-Stack Web & Mobile Developer

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I’m a Full-Stack Web & Mobile Developer with experience building scalable web applications, mobile apps, and AI-powered solutions for startups and businesses. I specialize in modern tech...

Ivo Oscar

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Cameroon

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Developer

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I'm Ivo Oscar, a Fullstack Web & Blockchain Developer based in, building digital products for clients worldwide.I specialize in custom web applications, smart contracts, DeFi protocols,...

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