Cloudflare · 2 weeks ago
Senior Software Engineer, Network Performance & Reliability
Austin, TX
Full-time
Hybrid
Senior LevelCloudflare is on a mission to help build a better Internet, running one of the world’s largest networks that powers millions of websites. They are seeking a Senior Software Engineer to enable reliable network connectivity for their products and contribute to the software infrastructure used across their portfolio.
AnalyticsEnterprise SoftwareSecurityWeb Hosting
Responsibilities
Enable more reliable network connectivity for Cloudflare’s products than the Internet itself provides
Be a key technical contributor to the cutting edge network software infrastructure used by Cloudflare's products
Work closely with various Engineering teams to translate their requirements into new capabilities on the platform
Partner with Network Engineering and SRE to ensure that the technology makes the best use of Cloudflare's world-class edge network
Participate in all stages of the software development lifecycle, from designing and documenting systems, to writing code and automated tests, to planning, managing, and monitoring production software deployments
Work with a wide range of technologies and programming languages, including Rust, Go, Linux networking, ClickHouse, PostgreSQL, Grafana, Kubernetes, and more
Participate in the team's on-call rotation as part of operational responsibilities
Qualification
Required
Systems-level programming experience in Go, Rust, C, or C++
A solid grasp of networking protocols in Layers 3 and 4 of the OSI Model
Knowledge of HTTP, TLS, and CDN networks
Experience in implementing secure and highly-available distributed systems
Experience with monitoring, alerting, and debugging large-scale distributed systems
Experience participating in an on-call rotation
Strong collaboration and communication skills
Experience/interest in network performance monitoring and tuning
Preferred
Knowledge of TCP/IP and Internet routing
Professional systems-level programming experience in Rust
Working knowledge of statistical-analysis techniques and control theory
Experience building tools and APIs
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
Short and Long Term Disability Insurance
Life & Accident Insurance
401(k) Retirement Savings Plan
Employee Stock Participation Plan
Flexible paid time off covering vacation and sick leave
Leave programs, including parental, pregnancy health, medical, and bereavement leave
Company
Cloudflare
Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.
Founded in 2009
1001-5000 employees
H1B Sponsorship
Cloudflare has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (117)
2024 (115)
2023 (66)
2022 (98)
2021 (83)
2020 (37)
Funding
Current Stage
Public CompanyTotal Funding
$2.08BKey Investors
Franklin TempletonFidelityUnion Square Ventures
2025-06-13Post Ipo Debt· $1.75B
2019-09-12IPO
2019-03-12Series E· $150M
Leadership Team
Matthew Prince
CEO & Co-Founder
Lee Holloway
Co-Founder & Lead Engineer
Recent News
2026-01-24
2026-01-23
2026-01-20
Company data provided by crunchbase