# Senior Distributed Systems Engineer - Cache

**Company**: Cloudflare
**Location**: Hybrid
**Work arrangement**: hybrid
**Experience**: senior
**Job type**: full-time
**Salary**: San Francisco: $194,000 - $266,000, Seattle, Washington D.C., New York: $185,000 - $254,000, Denver, Austin, Illinois, Atlanta: $168,000 - $231,000
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/cloudflare/jobs/8163523?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_9a5e34dd-07f

## Description

## About the Role

The Cache team at Cloudflare builds and operates the high-performance reverse proxy and caching data plane at Cloudflare's edge. You will work primarily on the reverse proxy and the services that support it: backend routing and load balancing, cache storage and indexing, globally distributed purge, Tiered Cache routing, and production observability.

## Key Responsibilities

- Design, build, and operate the high-performance cache and proxy data plane that serves content at Cloudflare's edge and connects to customer origins

- Contribute to Pingora and the production services built on it, improving asynchronous I/O, connection handling, memory and disk efficiency, and tail latency

- Improve cache correctness and performance through object placement, retention, admission and eviction policies, range-request handling, and resilience to corrupt or incomplete data

- Build globally distributed purge and Tiered Cache systems that invalidate content quickly, select efficient cache paths, improve hit rates, and reduce origin load

- Deliver shared platform capabilities and customer-facing APIs and rules for cache keys, TTLs, response handling, purge behavior, and programmatic access from Workers

- Own features end to end: write technical designs, implement services and libraries, add automated tests and observability, drive staged rollouts, and operate the resulting systems in production

- Participate in the team's on-call rotation, lead incident response and post-mortems, and continually improve reliability, capacity, and operational tooling

## Requirements

- Minimum 4 years of professional experience designing, building, and operating production software systems

- Strong proficiency in at least one systems or backend language such as Rust, Go, C, or C++

- Strong understanding of HTTP semantics and transport protocols such as TCP, TLS, and QUIC

- Experience designing and implementing secure, resilient, high-performance distributed systems

- Experience with Linux systems, networking, concurrency, and performance analysis

- Track record of production ownership, including monitoring, debugging, on-call, incident response, and ongoing reliability improvements

- Experience using metrics, logs, traces, profiling, and experiments to understand production behavior and validate improvements

- Strong written and verbal communication skills, including the ability to write clear technical designs and lead projects across team boundaries

- Willingness to use AI-assisted engineering tools to accelerate development and investigation while remaining accountable for correctness, security, and design quality

## Nice-to-Have Skills

- Professional experience with Rust or high-performance asynchronous systems

- Experience with caches, HTTP proxies, CDNs, distributed storage, or latency-sensitive data-plane services

- Experience analyzing memory use, disk I/O, resource contention, and tail latency in production systems

- Experience building APIs or distributed control planes using event streaming, relational databases, or analytical data systems

- Familiarity with Kubernetes, Kafka, PostgreSQL, ClickHouse, or similar infrastructure

- Experience contributing to open-source software or leading multi-team engineering programs

## Compensation

Compensation may be adjusted depending on work location and level. San Francisco Estimated Base salary $194,000 - $266,000. Seattle, Washington D.C., New York Estimated Base salary $185,000 - $254,000. Denver, Austin, Illinois, Atlanta Estimated Base salary $168,000 - $231,000. Equity This role is eligible to participate in Cloudflare’s equity plan.

## Skills

### Required
- Rust
- Go
- C
- C++
- HTTP
- TCP
- TLS
- QUIC
- Linux
- networking
- concurrency
- performance analysis

### Nice to have
- high-performance asynchronous systems
- caches
- HTTP proxies
- CDNs
- distributed storage
- latency-sensitive data-plane services
- Kubernetes
- Kafka
- PostgreSQL
- ClickHouse

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Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/cloudflare/jobs/8163523?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)