Software Engineer - Backend (Rust, TypeScript)

About The Role

As a Backend Engineer at Anon, you'll help build and scale our core infrastructure and APIs that power AI agent authentication across the internet. You'll be responsible for developing the systems that enable secure, reliable integration between AI applications and internet services, even when formal APIs don't exist. This role involves substantial technical depth and ownership as you help create the foundation for the next generation of AI applications.

Key Responsibilities

Builder Mindset & Ownership

• Take pride in building reliable, secure APIs that developers love to use.
• Own features end-to-end, from conception through deployment and maintenance.
• Actively identify and solve problems before they impact customers.

Core Platform Development

• Design and maintain scalable, secure APIs that power our suite of platform-specific SDKs.
• Implement networking features including traffic inspection, protocol-level request manipulation, and proxy systems.
• Engineer Kubernetes clusters and manage scalable browser runtime environments.
• Contribute to cryptographic protocol implementation and security infrastructure.

Developer Experience

• Create and maintain SDK documentation and sample applications.
• Manage API versioning and backwards compatibility.
• Support customer integration efforts and address technical challenges.
• Collaborate with product and frontend teams to improve developer experience.

What We're Looking For

Technical Requirements

• 2-5 years of experience for Standard role; 5-8+ years for Senior role.
• Strong proficiency in at least one of: TypeScript, Rust, or Go.
• Strong experience with REST API design, with GraphQL experience a plus.
• Familiarity with Kubernetes, microservice architecture, and cloud infrastructure.
• Understanding of authentication protocols (OAuth2, OpenID Connect).
• Experience with browser automation tools (Playwright, Puppeteer) is a plus.
• Knowledge of networking protocols (HTTP, TCP, TLS) is a plus.

Culture and Mindset

• Builder mentality with examples of shipped products or significant features.
• Self-motivated problem-solver who can work with incomplete information.
• Excellent communication skills and ability to work cross-functionally.
• Strong desire to learn and adapt in a fast-paced environment.
• Commitment to code quality and engineering best practices.

Compensation & Benefits

• Competitive salary with significant equity in a well-funded startup.
• Comprehensive health, dental, and vision insurance.
• Company-provided workstation setup of your choice.
• Free gym membership at your preferred location.
• In-person work environment and team events in San Francisco (Hayes Valley).

In Conclusion

We're looking for builders who want to define the future of AI authentication. Our team includes former founders and early startup employees who have scaled products from 0 to 1. If you're excited about building critical infrastructure for the AI ecosystem and working with an exceptional team, we want to talk to you.