Blockchain Developer

New

Bright Vision TechnologiesBlockchain Technology

100% Remote (U.S.)Full-TimeSenior

Salary140,000 - 200,000 USD per year

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Job Details

Experience: 6+ years
Required Skills: GraphQLNode.jsPostgreSQLEthereumJavaC#.NET coreReactRESTful APIs

Six or more years of professional software development experience building enterprise-grade distributed applications.
Three or more years of hands-on blockchain development experience delivering production blockchain solutions.
Strong experience developing smart contracts using Solidity and Ethereum Virtual Machine (EVM)-compatible networks.
Hands-on experience with blockchain platforms such as Ethereum, Hyperledger Fabric, Polygon, Avalanche, Binance Smart Chain, or Quorum.
Strong proficiency in JavaScript/TypeScript with Node.js or backend development using C#/.NET Core or Java.
Experience building decentralized applications (dApps) with React, Angular, or Vue.js.
Strong understanding of blockchain architecture, consensus algorithms, cryptographic hashing, digital signatures, Merkle trees, and distributed ledger concepts.
Experience implementing ERC-20, ERC-721, ERC-1155, or custom token standards.
Strong experience with REST APIs, GraphQL APIs, WebSockets, and blockchain RPC interfaces.
Experience working with SQL and NoSQL databases including PostgreSQL, SQL Server, MongoDB, or Redis.

Design and develop secure smart contracts for enterprise blockchain applications using Solidity or other smart contract languages.
Build scalable backend services that interact with blockchain networks for transaction processing, asset management, and identity verification.
Develop RESTful and GraphQL APIs to expose blockchain functionality to web and mobile applications.
Design blockchain data models, token standards, and transaction workflows for high-volume enterprise systems.
Integrate enterprise applications with Ethereum, Hyperledger Fabric, Polygon, Avalanche, or other blockchain platforms.
Develop secure wallet integrations, digital signature workflows, and key management solutions.
Implement blockchain event listeners, indexing services, and off-chain processing components.
Build scalable microservices using .NET Core, Java, or Node.js that interact with blockchain networks.
Optimize smart contracts for gas efficiency, scalability, and transaction throughput.
Perform smart contract audits, security testing, and vulnerability assessments.

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