Senior Blockchain Engineer (X2)

Roles & Responsibilities: Reports to CTO - interim 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 Bio Matrix.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 (Bio Pay) 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 Web 3, DeFi, real-world asset (RWA) tokenization, and decentralized identity to guide innovation. Selling Points: Interesting startup with ideas of how the world can be changed Irvine office gets lunch daily Lots of opportunities to develop engineers - growth in skillset, go to activities, events, founder sponsors a lot of events One of the first US-based engineers Can make fancy titles work Financial Stability - Stable as a startup, has enough cash flow, runway goes until 2028, salary can offer equity, cryptocurrency Excited to work on blockchain systems that combine identity, payments, and real-world applications. Comfortable with ambiguity, thrives in 0→1 environments, and moves quickly. Obsessed with trust, reliability, and protecting user data. Believes in AC Tech's mission of building secure and inclusive digital ecosystems.