SDK Engineer, Billing Engineering

About the Role

Join Clerk's Billing Engineering team to develop and maintain the core SDKs that power our critical billing infrastructure for thousands of developers.

Responsibilities

• Design, implement, and maintain high-quality, reliable Software Development Kits (SDKs) for various programming languages used by our customers.
• Collaborate closely with backend and product engineers to ensure SDKs accurately reflect and integrate with the latest billing APIs and features.
• Write comprehensive documentation, tests, and examples to ensure smooth adoption and usage of the SDKs.
• Troubleshoot and resolve complex integration issues reported by customers using the SDKs.

Requirements

• Proven experience developing and shipping production-grade SDKs or client libraries in at least one major language (e.g., Node.js, Python, Go, Java).
• Deep understanding of RESTful API consumption, authentication patterns, and error handling within client libraries.
• Strong commitment to code quality, testing methodologies (unit, integration), and performance optimization.
• Excellent written and verbal communication skills for technical documentation and cross-functional collaboration.

Nice-to-Haves

• Experience specifically with billing systems or payment processing integrations.
• Familiarity with the Clerk platform or similar developer-focused tools.
• Experience maintaining libraries across multiple language ecosystems (e.g., npm, PyPI, Maven).