Elios Talent logo

Senior Blockchain Engineer

Elios Talent
Department:Design
Type:REMOTE
Region:Seattle, WA
Location:Seattle, WA
Experience:Mid-Senior level
Salary:$120,000 - $200,000
Skills:
SOLIDITYETHEREUMWEB3JSSMART CONTRACTSDEFINFTLAYER 2BLOCKCHAIN SECURITY
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Job Description

Posted on: September 26, 2025

Senior Blockchain EngineerHighlights

⛓️ Build decentralized applications and smart contracts on blockchain platforms

💰 Develop DeFi protocols, NFT marketplaces, and Web3 integrations

🔒 Implement blockchain security best practices and optimize performance

Job InformationTitle: Senior Blockchain Engineer

Location: Flexible / Remote

Employment Type: Full-Time

Compensation: $120,000 – $200,000

Role Summary

We are seeking a Senior Blockchain Engineer to design and develop decentralized applications, smart contracts, and blockchain integrations. You will work on DeFi protocols, NFT marketplaces, and Web3 applications while ensuring security, scalability, and efficiency. This role combines hands-on smart contract development with expertise in blockchain infrastructure and optimization.

Key Responsibilities

  • Design and implement smart contracts on Ethereum and Layer 2 solutions.
  • Build decentralized applications (dApps) with Web3 integrations.
  • Develop and maintain DeFi protocols and NFT marketplaces.
  • Optimize gas usage and smart contract performance.
  • Ensure blockchain security through audits, best practices, and monitoring.
  • Collaborate with product, design, and engineering teams to deliver Web3 solutions.

Requirements

  • 3–6 years of experience in blockchain engineering or related fields.
  • Strong proficiency with Solidity and Ethereum development.
  • Hands-on experience with Web3.js and smart contract frameworks.
  • Knowledge of Layer 2 scaling solutions and blockchain infrastructure.
  • Deep understanding of blockchain security best practices.
  • Proven track record of building and deploying dApps or blockchain platforms.

About the Opportunity

This role is ideal for engineers passionate about Web3 and decentralized systems. You’ll build next-generation blockchain applications while shaping the future of DeFi, NFTs, and digital ecosystems.

Originally posted on LinkedIn

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