Blockchain Developer
Worldwide Placement Limited
contract
Posted on:
Location Type: Remote
Location: United Kingdom
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Salary
💰 $65 per hour
About the role
- Build and maintain scalable microservices using Node.js, JavaScript, and REST APIs
- Design and integrate blockchain-enabled backend services, including smart contract interactions and transaction workflows
- Work with Web3 libraries (Ethers.js / Web3.js) to interact with blockchain networks and wallets
- Contribute to front-end development using HTML, CSS, JavaScript, and TypeScript
- Support monitoring dashboards and internal systems through backend workflows
- Integrate blockchain APIs and decentralized services into existing platforms
- Participate in Agile ceremonies including story refinement, estimation, standups, and retrospectives
- Troubleshoot, test, and deliver clean, secure, and scalable code
- Work proactively and independently with minimal supervision in a remote environment
Requirements
- 3–5+ years of full-stack engineering experience
- 4+ years of Node.js experience (NVM, NPM)
- 4+ years of HTML, CSS, JavaScript
- 4+ years of cloud experience (AWS, GCP, or Azure)
- 2+ years working with SQL or NoSQL databases
- 1+ year experience with blockchain fundamentals, including:
- Web3 concepts
- Wallets and crypto transaction flows
- Smart contract interaction
- Hands-on experience integrating with:
- Blockchain APIs
- Web3 libraries
- Decentralized or crypto-enabled systems
- Experience working in an Agile environment (Jira or similar)
Benefits
- Health insurance
- paid time off
- learning budget
- flexible work arrangements
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Node.jsJavaScriptREST APIsHTMLCSSTypeScriptSQLNoSQLblockchainsmart contracts
Soft Skills
proactiveindependentminimal supervisiontroubleshootingtestingclean codesecure codescalable code