$146K - 177K a year
Design, build, and maintain blockchain protocols, smart contracts, and distributed systems while collaborating with cross-functional teams and mentoring junior engineers.
5+ years blockchain development experience with proficiency in Java and Solidity, strong understanding of smart contract security and cryptography, and experience with major blockchain platforms.
Trident Consulting is seeking a " Senior Blockchain Engineer " for one of our clients. " A global leader in business and technology services. Role: Senior Blockchain Engineer Location: Fully onsite Irvine, CA or Mountain View, CA(some flexibility dependent on individual circumstances) Duration: 3-6 Months CTH Pay Rate: $70-$85/hr on C2C depending on experience Work Authorization: Someone who doesn’t require visa sponsorship at all. Day to Day duties: • Go-to Blockchain expert • 70% coding/30% cross-functional work providing guidance to Product Managers and Marketing teams on technical feasibility • Will be involved in new product design with Marketing team • Meeting with end customers (5 hours/week) • Will work with team in China (unsure what hours but will allow flexibility for start times) • Design, build, and maintain blockchain protocols, smart contracts, and distributed systems powering BioMatrix.ai. • Develop tokenized payment systems and identity verification flows, ensuring 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 blockchain development with roadmap and user needs. • Mentor junior engineers and contribute to best practices for blockchain development within AC Tech. • Stay ahead of emerging trends in Web3, DeFi, real-world asset (RWA) tokenization, and decentralized identity to guide innovation. TOP Requirements: • Layer 2 Blockchain Experience • Proficiency in Java (any version) • Real World Assets (RWA – tough find) • Bachelor’s or Master’s degree in Computer Science, Cryptography, or related technical field. • 5+ years of blockchain development experience (protocol, dApps, Layer 1/Layer 2, or DeFi/Web3). • Proficiency in Java and Solidity. • Strong understanding of smart contract security, cryptography, and distributed systems. • Experience with Ethereum, Solana, or other major blockchain platforms. • Proven track record of delivering production-grade blockchain systems. • Excellent problem-solving, collaboration, and communication skills. Nice to have: • HUGE plus if they speak Chinese - team in China • Layer 1 blockchain experience • Experience in Go • Familiarity with fintech, identity verification, or biometric systems is a plus. • Experience working on payments platforms is applicable Trident Consulting is a premier IT staffing firm providing high-impact workforce solutions to Fortune 500 and mid-market clients. Since 2005, we've specialized in sourcing elite technology and engineering talent for contract, direct hire, and managed services roles. Our expertise spans cloud, AI/ML, cybersecurity, and data analytics, supported by a 3M+ candidate database and a 78% fill ratio. With a highly engaged leadership team and a reputation for delivering hard-to-fill, niche talent, we help organizations build agile, high-performing teams that drive innovation and business success. Learn more: tridentconsultinginc.com. Some of our recent awards include: • Trailblazer Women Award 2025 by Consulate General of India in San Francisco. • Ranked as the #1 Women Owned Business Enterprise in the large category by ITServe • Received the TechServe Excellence award
This job posting was last updated on 10/10/2025