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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Job Tags

Hourly pay, Contract work, Visa sponsorship, Work visa, Flexible hours

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