# Senior _Blockchain_ Developer
**Remote | Full-Time | $220,000–$260,000 USD**
## Build the Future of _Web3_
Are you passionate about _blockchain_ technology and excited by the opportunity to build products that can transform industries? We're looking for a **Senior _Blockchain_ Developer** to join our growing team and help create next-generation solutions across _Web3_, digital assets, tokenized real estate, decentralized finance (_DeFi_), and _smart contract_ infrastructure.
This is more than just another engineering role. You'll have the opportunity to shape technical strategy, influence product direction, and work on innovative projects that push the boundaries of _blockchain_ technology.
If you're a builder, problem solver, and _blockchain_ enthusiast who thrives in a fast-paced environment, we'd love to hear from you.
# Responsibilities
* Design, develop, test, and deploy secure _smart contracts_ on _Ethereum_ and EVM-compatible blockchains.
* Build and maintain scalable decentralized applications (dApps) and _Web3_ platforms.
* Develop backend services, APIs, and _blockchain_ integrations using Node.js and TypeScript.
* Collaborate with product managers, designers, and engineers to deliver high-quality features and products.
* Architect _blockchain_ solutions that prioritize scalability, security, and performance.
* Conduct code reviews and provide technical mentorship to junior and mid-level developers.
* Integrate wallets, _token_ standards, payment systems, and third-party _blockchain_ services.
* Monitor, troubleshoot, and optimize production _blockchain_ applications.
* Implement security best practices and participate in _smart contract_ audits and risk assessments.
* Improve development workflows, CI/CD pipelines, testing frameworks, and deployment processes.
* Research emerging _blockchain_ technologies and evaluate new tools, protocols, and frameworks.
* Contribute to technical documentation, architecture planning, and engineering standards.
* Participate in technical discussions and help drive long-term product and technology strategy.
* Work closely with cross-functional teams to ensure successful product launches and ongoing improvements.
# Required Qualifications
* 5+ years of professional software engineering experience.
* 3+ years of hands-on _blockchain_ development experience.
* Strong expertise in _Solidity_ and _Ethereum_ _smart contract_ development.
* Experience building production-grade applications using React, TypeScript, and Node.js.
* Strong understanding of _blockchain_ architecture, decentralized systems, and _Web3_ technologies.
* Experience with _ethers_.js, _viem_, _wagmi_, or similar _Web3_ libraries.
* Knowledge of _token_ standards including ERC-20, ERC-721, and ERC-1155.
* Experience with REST APIs, GraphQL, databases, and cloud infrastructure.
* Strong understanding of software design patterns and scalable architecture.
* Excellent problem-solving, communication, and collaboration skills.
# Nice-to-Have Qualifications
* Experience building _DeFi_, _NFT_, RWA, or tokenization platforms.
* Familiarity with Layer 2 scaling solutions and cross-chain technologies.
* Experience conducting or supporting _smart contract_ security audits.
* Knowledge of AWS, Docker, Kubernetes, and infrastructure automation.
* Experience working in startups or high-growth technology companies.
* Open-source contributions within the _blockchain_ ecosystem.
Please contact out through the work email - hello@coreblocklabs.com if you're interested...
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