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Protocol Engineer
Job in
New York, New York County, New York, 10261, USA
Listed on 2026-06-19
Listing for:
Essence Coaching Group
Full Time
position Listed on 2026-06-19
Job specializations:
-
IT/Tech
Blockchain / Web3, Cybersecurity, Data Security
Job Description & How to Apply Below
Job Title: Protocol Engineer
Location: Midtown New York City — In-person Mon–Thu, optional remote Friday
Employment Type: Full-time
Seniority Level: Senior
Compensation: $120,000 – $300,000 + equity
We are seeking a Protocol Engineer to join a core blockchain engineering team building next-generation Web3 payments infrastructure. This role sits at the intersection of smart contracts, cross-chain systems, and DeFi, focused on designing secure, scalable, and efficient onchain protocols that enable high-volume transactions across multiple networks.
You will take ownership of protocol design and implementation, working closely with backend and product teams to deliver production-grade blockchain systems.
Key Responsibilities- Design, develop, and deploy secure smart contracts and protocol components across multiple blockchain networks
- Architect blockchain-based payment and settlement systems in collaboration with backend and product teams
- Write highly efficient, well-tested, and production-ready smart contract code
- Research and evaluate emerging blockchain technologies, L1/L2 networks, and protocol designs
- Contribute to cross-chain communication and interoperability solutions
- Support incident response, debugging, and resolution of onchain production issues
- Ensure protocols meet high standards of security, scalability, and performance
- Proven experience building and deploying production smart contracts (Ethereum and/or L2 ecosystems)
- Strong proficiency in Solidity (primary), with Rust or Move as a plus
- Deep understanding of DeFi protocols, token standards (ERC-20/721/1155), and blockchain architecture
- Experience with cross-chain communication patterns and interoperability solutions
- Strong security mindset with awareness of smart contract vulnerabilities and mitigation strategies
- Experience working in production blockchain environments
- Experience with high-scale DeFi or payment protocols
- Exposure to protocol-level engineering or infrastructure design
- Experience working in fast-paced Web3 or startup environments
- Contributions to open-source blockchain projects
- High-impact role shaping foundational Web3 payment infrastructure
- Competitive compensation with equity upside
- Opportunity to work on complex multi-chain systems at scale
- Close collaboration with experienced blockchain and product teams
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