Software Engineer – Distributed Systems (Unimog L4 Load Balancer) jobs in United States
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Cloudflare · 1 week ago

Software Engineer – Distributed Systems (Unimog L4 Load Balancer)

Cloudflare is on a mission to help build a better Internet, operating one of the world’s largest networks for millions of websites. The Software Engineer in Distributed Systems will develop a load distribution system that ensures the efficiency and reliability of Cloudflare's edge network, collaborating with various engineering teams and participating in system inspections and improvements.

AnalyticsEnterprise SoftwareSecurityWeb Hosting
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H1B Sponsor Likelynote

Responsibilities

You’ll participate in the ongoing development of a load distribution system that works at the scale of Cloudflare’s edge network
You’ll take on challenging projects that require focus and determination, pragmatism and innovation, and careful consideration of risk
You’ll get to know the details of Cloudflare’s software and hardware infrastructure in order to design software that behaves well even when failures occur
You’ll collaborate with engineers across the company, from operations teams to the teams that build our customer-facing products
You’ll inspect the production behaviour of our systems, to check that they are working as intended and spot opportunities for improvement
You’ll be part of the on-call rota for the occasional cases when our operations teams need to escalate problems

Qualification

Linux kernel developmentDistributed systemsGo programmingInternet protocolsNetworking conceptsCommunicatorHigh code qualityRisk managementTeam player

Required

Broad experience covering some or all of Linux kernel network stack development (particularly eBPF)
Complex distributed systems written in Go
Understanding of Internet protocols and technologies like IP, TCP, UDP, QUIC, DNS, HTTPS, BGP
Curiosity to learn more about these technologies
Willing to write code in Go
Relish opportunities to dive into new technologies
Demonstrated ability to dive into new technologies
Awareness of networking concepts down to layer 2
Commitment to high code quality standards, both individually and working as part of a team
Comfortable understanding and working with complex distributed systems
Understanding of techniques to manage risk when evolving critical systems
Excellent communicator and team player

Preferred

Experience with Linux kernel network stack development (eBPF)
Solid understanding of routing protocols, particularly BGP

Company

Cloudflare

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Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.

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 Company
Total Funding
$2.08B
Key Investors
Franklin TempletonFidelityUnion Square Ventures
2025-06-13Post Ipo Debt· $1.75B
2019-09-12IPO
2019-03-12Series E· $150M

Leadership Team

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Matthew Prince
CEO & Co-Founder
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Lee Holloway
Co-Founder & Lead Engineer
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Company data provided by crunchbase