Job Description

Senior Blockchain Engineer

Location: Fully onsite – Irvine, CA or Mountain View, CA (flexibility based on circumstances)

Duration: 3–6 Months Closed‑Term Hire

Pay Rate: $70–$85 per hour on C2C based on experience

Work Authorization: No visa sponsorship required

Day to Day Duties

• Go-to Blockchain expert with 70% coding / 30% cross‑functional collaboration
• Guide Product Managers and Marketing on technical feasibility and new product design
• Meet with end customers (about 5 hours per week)
• Coordinate with a team in China with flexible start times
• Design, build, and maintain blockchain protocols, smart contracts, and distributed systems for BioMatrix.ai
• Develop tokenized payment systems and identity‑verification flows with high security and usability
• Implement smart contracts for token utility, payments, and governance
• Ensure security, scalability, and efficiency of blockchain systems through rigorous testing and best practices
• Integrate biometric verification (Face Scan) and payment flows (BioPay) into blockchain applications
• Collaborate with Product, Engineering, and QA teams to align development with roadmap and user needs
• Mentor junior engineers and establish best practices for blockchain development within AC Tech
• Stay ahead of emerging trends in Web3, DeFi, RWA tokenization, and decentralized identity

Top Requirements

• Layer 2 blockchain experience
• Proficiency in Java (any version) and Solidity
• Strong understanding of smart‑contract security, cryptography, and distributed systems
• 5+ years of blockchain development experience (protocol, dApps, Layer 1/Layer 2, or DeFi/Web3)
• Experience with Ethereum, Solana, or other major blockchain platforms
• Proven track record of delivering production‑grade blockchain systems
• Bachelor’s or Master’s degree in Computer Science, Cryptography, or related technical field
• Excellent problem‑solving, collaboration, and communication skills

Nice to Have

• Fluency in Chinese (team in China)
• Experience in Go
• Fintech, identity verification, or biometric systems experience
• Experience working on payments platforms

Trident Consulting is a premier IT staffing firm providing high‑impact workforce solutions to Fortune 500 and mid‑market clients. Since 2005, we specialize in sourcing elite technology and engineering talent for contract, direct hire, and managed services roles.

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