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Mountain View | Expertini

Urgent! ONSITE Blockchain Engineer: Java, Solidity, any blockchain platform; smartcontract / Rust, fintech/RWA, &/or biometrics a + in Mountain View | Kore1 | Expertini

ONSITE Blockchain Engineer: Java, Solidity, any blockchain platform; smartcontract / Rust, fintech/RWA, &/or biometrics a +



Job description

THE CLIENT'S PREFERENCE IS CONTRACT-TO-HIRE, BUT THEY ARE OPEN TO A DIRECT HIRE UPFRONT FOR THE RIGHT CANDIDATE
THIS ROLE IS HYBRID ONSITE IN MOUNTAIN VIEW, CA (3 DAYS ONSITE, 2 DAYS REMOTE).SORRY, WE ARE UNABLE TO SPONSOR OR TRANSFER VISAS AT THIS TIME.

KORE1, a nationwide provider of staffing and recruiting solutions, has an immediate opening for an ONSITE Blockchain Engineer: Java, Solidity, any blockchain platform; smartcontract / Rust, fintech/RWA, &/or biometrics a + We are seeking an experienced Senior Blockchain Engineer to architect and implement the blockchain foundation of our ecosystem.

You will design secure, scalable, and user-friendly blockchain solutions that integrate biometric identity, payments, and data services.This is a hands-on engineering role for someone who has deep blockchain expertise, thrives in 01 innovation, and is motivated to build real-world applications at a global scale.

Key Responsibilities

  • Design, build, and maintain blockchain protocols, smart contracts, and distributed systems powering our ecosystem.

  • 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 (payment platform) into blockchain applications.
  • Collaborate with Product, Engineering, and QA teams to align blockchain development with the roadmap and user needs.
  • Mentor junior engineers and contribute to best practices for blockchain development 
  • Stay ahead of emerging trends in Web3, DeFi, real-world asset (RWA) tokenization, and decentralized identity to guide innovation.
  • Qualifications

  • Bilingual in Mandarin is a plus
  • Bachelor's or Master's degree in Computer Science, Cryptography, or related technical field is a plus.

  • 5+ years of blockchain development experience (protocol, dApps, Layer 1/Layer 2, or DeFi/Web3).
  • Experience with Ethereum, Solana, or other major blockchain platforms required (doesn't matter which platform you've worked with - as long as you are willing to work with ours) 
  • Proven track record of delivering production-grade blockchain systems.
  • Proficiency in Java and Solidity required.

  • Rust skills are a plus.

  • Strong understanding of smart contract security, cryptography, and distributed systems
  • Real-world asset (RWA) tokenization experience is a plus
  • Familiarity with fintech, identity verification, or biometric systems is a plus.
  • Excellent problem-solving, collaboration, and communication skills.
  • Must be legally authorized to work in the United States.

    We do not sponsor work visas at this time.
  • Compensation depends on experience but is typically $70-100/hr with a target salary to convert at $150-200K plus pre-IPO equity


    Required Skill Profession

    Computer Occupations



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