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Internship Junior Blockchain Developer Jobs in California

Senior Blockchain Engineer (X2)

Irvine, CA · On-site

$129K - $171K/yr

... 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 ...

Senior Blockchain Engineer (X2)

Mountain View, CA · On-site

$145K - $192K/yr

... 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 ...

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Junior Python & SQL Developer Full-Time Candidate must be open to relocate. Job Summary We are ... Internship, academic, or personal projects involving Python and SQL are welcome. * Knowledge of ...

This is a great opportunity for recent graduates or junior engineers to gain hands-on experience in ... Previous coursework, projects, or internships involving blockchain, NFTs, or dApps. Why D3, Why Now?

This is a great opportunity for recent graduates or junior engineers to gain hands-on experience in ... Previous coursework, projects, or internships involving blockchain, NFTs, or dApps. Why D3, Why Now?

This is a great opportunity for recent graduates or junior engineers to gain hands-on experience in ... Previous coursework, projects, or internships involving blockchain, NFTs, or dApps. Why D3, Why Now?

... Junior Software Developer (C++) to join our team supporting the development and maintenance of ... Candidates with internship experience, academic projects, personal software projects, or ...

Senior Software Engineer - CUDA

Palo Alto, CA · On-site +1

$144K - $189K/yr

Mentor junior engineers and provide guidance on GPU-related topics and performance optimization ... Familiarity with ZKP applications and blockchain technologies is a plus. * Excellent problem ...

Junior Quality Engineer Foxconn is seeking a motivated and detail-oriented Junior Quality Engineer ... Internship or academic project experience in electronics manufacturing, quality, or manufacturing ...

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Infographic showing various Internship Junior Blockchain Developer job openings in California as of August 2026, with employment types broken down into 26% Internship, and 74% Full Time. Highlights an 100% In-person job distribution.

Senior Blockchain Engineer (X2)

Perfict

Irvine, CA • On-site

$129K - $171K/yr

Full-time

Re-posted 21 days ago


Job description

Job Summary:
Perfict is a company focused on innovative blockchain solutions. They are seeking a Senior Blockchain Engineer to architect and implement the blockchain foundation of the BioMatrix.ai ecosystem, ensuring secure and scalable solutions that integrate biometric identity and payments.
Responsibilities:
• Eports 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 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.
Qualifications:
Required:
• Deep blockchain expertise
• Hands-on engineering experience
• Experience in designing secure, scalable, and user-friendly blockchain solutions
• Experience with biometric identity, payments, and data services
• Experience in developing tokenized payment systems and identity verification flows
• Experience in implementing smart contracts for token utility, payments, and governance
• Ability to ensure security, scalability, and efficiency of blockchain systems through rigorous testing and best practices
• Experience in integrating biometric verification and payment flows into blockchain applications
• Ability to collaborate with Product, Engineering, and QA teams
• Mentoring experience for junior engineers
• Knowledge of emerging trends in Web3, DeFi, real-world asset tokenization, and decentralized identity
• Comfortable with ambiguity and thrives in 0→1 environments
• Strong focus on trust, reliability, and protecting user data
• Belief in building secure and inclusive digital ecosystems
Company:
Perfict Global is an IT consulting services provider, focused on providing innovative and successful business workforce solutions. Founded in 2011, the company is headquartered in Concord, USA, with a team of 51-200 employees. The company is currently Growth Stage.

Perfict logo

About Perfict

Sourced by ZipRecruiter

We are a technology company focused on providing innovative and successful business workforce solutions. Since 2011, Perfict has partnered with the biggest names across sectors offering a customized approach to each solution. We’ve established networks of genuine relationships that allow us to source the highest-quality talent and execute deals and hires quickly. With locations in US and India, we work globally to help you build your organization. Our methodology begins with listening to you about your needs. We work with your team to gain a clear understanding of your requirements, while providing a knowledge transfer of best practices.

Industry

Recruiting and staffing services

Company size

51 - 200 Employees

Headquarters location

Walnut Creek, CA, US

Year founded

2011

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