Cloudflare · 1 week ago
Software Engineer, Application Performance
Austin, TX
Full-time
Hybrid
Mid Level
4+ years expCloudflare is on a mission to help build a better Internet by powering millions of websites and other Internet properties. They are seeking a Software Engineer who will work on improving the performance, availability, and reliability of Internet applications.
AnalyticsEnterprise SoftwareSecurityWeb Hosting
Responsibilities
If you are obsessed with making the Internet faster, safer and more reliable for everyone, but are unsure about which team to apply for, this role will give you the best opportunity to match with a Software Engineering team that is most aligned to your experience, skill, and ambition
We've created a hiring process designed to find top tier candidates passionate about improving web and software application performance and help them find the best team fit for them at Cloudflare
At the end of the hiring process you will have the opportunity to meet with one or more teams to find out if they are the best team match, but if you discover during the interview process that a particular team is the most interesting to you let us know
Cloudflare’s Engineers build and operate the software that helps power 25+ million Internet properties and millions of businesses around the world
We’re looking for talented team members to help build and quickly iterate on high-growth products, scale our expanding network, build tools to improve availability, performance, uptime, and response times, and make systems fault-tolerant and elastic
As a Software Engineer at Cloudflare, you’ll work on the code that runs close to the end user at Internet scale
Qualification
Required
First and foremost curiosity and critical thinking
Experience (and love for) debugging complex distributed systems
Experience with a continuous integration workflow and using source control (we use git)
Experience with build and maintain distributed systems
Understanding of what it takes to build secure systems
Ability to work in multiple systems level programming languages - bonus points for Go and/or Rust
Experience with monitoring, alerting and debugging high volume production systems
Preferred
Minimum 4 years professional experience as a developer/engineer
Solid grasp of how TCP/QUIC and HTTP work
Experience with Linux networking
Understanding systems at the network protocol level, including the differences between what the specs say, and what actually happens on the Internet
Strong systems level programming skills
Experience with databases similar to PostgreSQL and Clickhouse
Good Unix knowledge, having submitted patches to Operating Systems a huge plus for some roles
Fluent in analyses of large data sets
BA/BS or higher in Computer Science/Engineering or equivalent professional experience
Company
Cloudflare
Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.
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
2026-01-11
2026-01-11
2026-01-11
Company data provided by crunchbase