Senior Frontend Engineer for Web3 SDKs & Tools

Circle; San Diego (CA); On-site; USD 153,000 - 205,000; Full time

Job summary

Circle is building world-class Web3 consumer applications, web SDKs, and developer tools. As part of a dedicated frontend engineering team, you will translate requirements into reliable and scalable experiences for developers and end users, collaborating with Product, Design, and Engineering to deliver high-quality features.

You will use modern frontend technologies, write well-tested code, and participate in reviews and automation to improve velocity and quality.

Qualifications

• 4+ years of experience building user interfaces for complex web apps.
• Strong proficiency in HTML, CSS, TypeScript, and JavaScript.
• Experience building responsive, component-based apps with React.
• Experience using AI-assisted development tools such as Claude, Codex, Cursor, or similar.
• Experience writing well-tested, maintainable code and strong coding standards.
• Strong product judgment and ability to improve usability and quality.
• Experience collaborating with product managers, designers, and distributed teams.
• Excellent written and verbal communication skills.

Responsibilities

• Build world-class Web3 consumer applications, web SDKs, and developer tools.
• Create internal tools for Customer Success to deliver exceptional support.
• Contribute to Circle’s frontend ecosystem through code reviews and engineering practices.
• Collaborate with Product, Design, and Engineering to translate requirements into intuitive features.
• Participate in code and design reviews to improve quality and maintainability.
• Use automated testing, CI/CD, and AI-assisted development tools to accelerate velocity.

Job description

Circle is building world-class Web3 consumer applications, web SDKs, and developer tools. As part of a dedicated frontend engineering team, you will translate requirements into reliable and scalable experiences for developers and end users, collaborating with Product, Design, and Engineering to deliver high-quality features.

You will use modern frontend technologies, write well-tested code, and participate in reviews and automation to improve velocity and quality.