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# Fullstack Engineer, Blockchain

- **Company:** Yeah! Global
- **Location:** San Francisco, CA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, JavaScript (Programming Language), Application Programming Interfaces (APIs), Application Performance Management, Unit Testing, Code Review, Database Design, Internet Security, Node.Js, E2e Testing, Blockchain, Web Application Security, Software Engineering, Systems Integration, Web Applications, ReactJS, Backend, Information Technology, Front End Software Development, Restful APIs
- **Published:** November 4, 2026
- **Apply:** https://www.careerbuilder.com/job-details/fullstack-engineer-blockchain-san-francisco-ca--39c7633d-ce49-4e21-aa00-ee54468dcdac

## About the Role

Blockchain, JavaScript, React.js, Node.js, Blockchain, REST (Representational State Transfer), Application Programming Interface (API), Database Design, Internet Security, Writing Skills, * 3+ years of experience in fullstack development, specializing in React, Node.js, and JavaScript.

 * Familiarity with blockchain technology and smart contract development is a bonus.
 * Strong understanding of REST APIs, database design, and web security.
 * Proven ability to write clean, scalable, and efficient code.
 * Familiar with unit testing and end-to-end testing frameworks.
 * Bachelors degree in Computer Science, Software Engineering, or a related field.
 * Excellent communication skills in English., * Design, develop, and maintain end-to-end web applications, covering both frontend (React) and backend (Node.js or equivalent).

## Description

* Collaborate closely with product, design, and backend teams to ensure seamless system integration.
 * Optimize application performance and scalability for high-demand DeFi use cases.
 * Participate in the design and architecture of smart contracts to ensure seamless blockchain integration.
 * Conduct code reviews and testing to maintain high code quality and security standards.
 * Stay updated on the latest trends in blockchain, DeFi, and fullstack development.