Sr Backend Engineer

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Company: Cadre

Location: San Francisco, CA 94112

Description:

Senior Backend Software Engineer

San Francisco | Full-time | $160K-$220K + Equity (0.3% - 0.5%)
Anon | anon.com
About Anon

Anon is building the universal integration platform for the internet. Our SDKs and APIs empower developers to build secure, user-permissioned integrations with any site-even those without APIs. Backed by $13M in funding and a bold vision, we're creating the infrastructure that enables AI agents and software to act on users' behalf across the web.

We're a small, mission-driven team headquartered in San Francisco, focused on unlocking a new era of internet interaction-and we're looking for builders ready to shape this future with us.
About the Role

As a Senior Backend Engineer, you'll design and scale Anon's enterprise data migration platform-helping companies transfer customer data between platforms seamlessly and securely, even when APIs are limited or unavailable. You'll build the infrastructure that powers automated extraction, transformation, and loading (ETL) workflows, secure authentication, and robust data flows across diverse systems.

This is a deeply technical, high-impact role where you'll own critical features end-to-end, shape our architecture, and collaborate across product and engineering teams to deliver exceptional customer experiences.
Responsibilities
Builder Mindset & Ownership
  • Design and maintain APIs that are reliable, secure, and developer-friendly
  • Own projects from architecture through deployment and monitoring
  • Proactively identify and resolve performance, reliability, and security issues
Core Platform Development
  • Develop scalable APIs that power our SDKs
  • Build proxy systems and networking features (e.g. traffic inspection, protocol-level manipulation)
  • Create and maintain data pipelines on GCP, AWS, or similar cloud platforms
  • Contribute to authentication protocols, session management, and security infrastructure
  • Integrate with vendors across authentication, DevOps, and database services
Enterprise-First Mentality
  • Ensure backwards compatibility and API versioning for enterprise users
  • Partner with customers to troubleshoot and support technical integration efforts
  • Work cross-functionally with frontend and product teams to deliver cohesive features
What We're Looking For
  • 5-8 years of experience building robust backend systems
  • Expertise in complex platform and SDK architecture
  • Strong knowledge of Node.js, TypeScript, GraphQL, PostgreSQL, and Docker
  • Experience with cloud infrastructure (AWS, GCP) and CI/CD tools (GitHub Actions)
  • Familiarity with authentication, data security, and systems design
  • A builder mindset with a bias for ownership and end-to-end execution
  • Comfortable working in a fast-paced, startup environment with high autonomy
Job Details
  • Type: Full-time
  • Location: San Francisco (On-site, 5 days/week)
  • Compensation: $160,000-$220,000
  • Equity: 0.3% - 0.5%
  • Visa Sponsorship: Available (H-1B, TN, Green Card)
  • Reports To: Grant Timmerman, Co-founder
Why Join Anon?

We're building something bold: a platform that bridges the gap between today's internet and tomorrow's autonomous software. As part of our early team, you'll have outsized impact on our architecture, product, and company culture.

If you're driven by challenging engineering problems and excited to help define the next wave of AI and software interoperability, join us.

Apply today and help us unlock the web.

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