Principal Software Engineer
Job Summary
Leading the evolution of authentication and authorization, the fully remote Principal Software Engineer will own the technical vision and architecture for a purpose-built API auth gateway and identity services, focusing on designing, developing, and delivering scalable, secure backend solutions.
Key Responsibilities
- Own the technical vision and roadmap for Sezzle's authentication and authorization platform, including a dedicated API auth gateway and supporting identity services
- Architect, design, and build scalable, highly-available auth services and gateway components primarily in Golang, leveraging AWS and modern distributed patterns
- Establish and evolve authentication and authorization standards across the platform, ensuring compliance with fintech-grade security and regulatory requirements
Required Qualifications
- 12+ years of professional software engineering experience, with significant backend experience
- Deep expertise in authentication and authorization systems, including OAuth2, OpenID Connect, and JWT
- Experience designing and operating an API gateway or auth proxy at scale
- Strong proficiency in Golang and experience building RESTful APIs
- Bachelor's degree in Computer Science or a similar technical field
Complete Job Description
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