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# Blockchain Developer

- **Company:** SWIFT
- **Location:** Manassas, VA, United States
- **Experience:** Expert
- **Salary:** $121,564.0 - $225,762.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Code Review, Databases, Software Debugging, Digital Assets, Distributed Systems, Python (Programming Language), Open Source Technology, Systems Development Life Cycle, Cloud Services, Blockchain, TypeScript, Software Vulnerability Management, Rust (Programming Language), NFT, Hyperledger, Information Technology, Ethereum, Solidity, Web3.js
- **Published:** May 22, 2026
- **Apply:** https://swift.wd3.myworkdayjobs.com/Join-Swift/job/Manassas-United-States/Blockchain-Developer_2026-16041

## About the Role

University degree in computer science or related field. Or equivalent work experience., 10 to 12 years' experience in systems development., * Strong experience in blockchain development and distributed systems

 * Proficiency in Solidity, Rust, JavaScript/TypeScript, Go, or Python
 * Deep understanding of smart contracts, cryptography, consensus mechanisms, and Web3 technologies
 * Experience with frameworks/tools such as Hardhat, Truffle, and Foundry
 * Familiarity with DeFi, NFTs, wallets, and token standards (ERC-20, ERC-721)
 * Knowledge of security best practices and vulnerability mitigation
 * Experience with CI/CD pipelines, cloud platforms, and agile development, * Bachelor's or Master's degree in Computer Science or related field
 * Contributions to open-source blockchain projects
 * Relevant blockchain certifications or published projects

Typical Outcomes

 * Deliver secure and scalable blockchain products
 * Improve transaction efficiency and platform reliability
 * Support innovation in decentralized finance, digital assets, and enterprise blockchain solutions

## Description

* Design and develop blockchain-based applications and smart contracts
 * Build and maintain decentralized systems using platforms such as Ethereum, Solana, or Hyperledger Besu
 * Write secure, efficient smart contracts using languages like Solidity or Rust
 * Conduct code reviews, testing, debugging, and security audits
 * Optimize blockchain performance, scalability, and transaction efficiency
 * Integrate blockchain solutions with APIs, databases, and cloud services
 * Mentor junior developers and contribute to technical leadership
 * Stay updated on emerging blockchain technologies, protocols, and best practices


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