Senior Systems Engineer, Identity & Access Management

• Feature development: design and build high-throughput, low-latency IAM capabilities that power both customer-facing and internal service APIs.
• System evolution: contribute to the design and evolution of our authentication and authorization systems into modern, distributed, and edge-capable architectures.
• API and system design: translate product and security requirements into robust, well-structured APIs and technical specifications in collaboration with Product, Security, and UX teams.
• Engineering excellence: maintain a high bar through thorough code reviews, technical design documents, and collaborative problem-solving.
• Operational stewardship: own the reliability of the platform under constant load, ensuring observability and resilience are built into every service.
• AI-assisted development: use AI tools throughout your workflow, from code generation to debugging, and bring the judgment to know when to trust them.

• Professional Experience: 5-8 years building and operating production systems at scale.
• Identity Domain Knowledge: Working knowledge of identity protocols and models (OAuth 2.0, OIDC, SAML, SCIM, RBAC/ABAC, and session management, etc.). Hands-on experience implementing identity protocols or fine-grained authorization systems, RBAC, ABAC, relationship-based access control, or policy engines (such as Cedar), in production.
• Language Proficiency: Proficiency in languages like Go and Typescript and comfort working across Cloudflare’s tech stack.
• API Design: Experience designing and building REST APIs: routing, authentication, request lifecycle, and versioning.
• Database & Storage: PostgreSQL and Redis experience: schema design, query optimization, caching strategies, and consistency tradeoffs.
• Distributed Systems: Strong distributed systems intuition: consistency models, event-driven replication, and the implications of global state propagation.
• High Agency: High standards for correctness and security; curious, self-directed, and comfortable driving ambiguous problems to resolution across team boundaries., * Experience with credential and token lifecycle systems: issuance, rotation, scoping, revocation, or service-to-service authentication at scale.
• Familiarity with the Cloudflare developer platform: Workers, Durable Objects, KV, R2, etc.
• Experience incrementally re-architecting a large, long-lived codebase under production traffic, and familiarity with containerized deployment (Docker, Kubernetes), infrastructure as code (Terraform), and observability tooling (Prometheus, Grafana, Kibana).

Cloudflare offers a complete package of benefits and programs to support you and your family. Our benefits programs can help you pay health care expenses, support caregiving, build capital for the future and make life a little easier and fun! The below is a description of our benefits for employees in the United States, and benefits may vary for employees based outside the U.S.

Health & Welfare Benefits

• Medical/Rx Insurance
• Dental Insurance
• Vision Insurance
• Flexible Spending Accounts
• Commuter Spending Accounts
• Fertility & Family Forming Benefits
• On-demand mental health support and Employee Assistance Program
• Global Travel Medical Insurance

Financial Benefits

• Short and Long Term Disability Insurance
• Life & Accident Insurance
• 401(k) Retirement Savings Plan
• Employee Stock Participation Plan

Time Off

• Flexible paid time off covering vacation and sick leave
• Leave programs, including parental, pregnancy health, medical, and bereavement leave

Cloudflare runs one of the world’s largest networks, and every API call that configures it, from any customer, integration, or internal service, starts by proving who is calling and what they’re allowed to do. The IAM team owns the authentication and authorization systems behind that: the identity layer of the Control Plane operating at global scale. Our surface spans things like login and SSO, OAuth and API tokens, account membership, roles and permissions, and SCIM provisioning., What Makes Cloudflare Special?

We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.

Project Galileo: Since 2014, we’ve equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers-at no cost.

Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we’ve provided services to more than 425 local government election websites in 33 states.

1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers.

Sound like something you’d like to be a part of? We’d love to hear from you!

Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs. More details about this will be available at that stage of the interview process.