Systems Test Engineer - Zero Trust Client jobs in United States
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Cloudflare · 2 days ago

Systems Test Engineer - Zero Trust Client

positionAustin, TX
timeFull-time
remoteOnsite
seniorityMid Level

Cloudflare is on a mission to help build a better Internet and is seeking a Systems Test Engineer for their Zero Trust QA team. This role involves testing and validating Zero Trust products, ensuring high-quality security solutions by collaborating with various teams and expanding test coverage.

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Responsibilities

Collaborate closely with fellow test engineers, PMs and development teams to understand all features
Define and execute in-depth product test strategies for new and existing features
Assist teams to quickly reproduce customer issues, test fixes and update tests to close coverage gaps
Discover edge cases across Zero Trust products and partner with teams to find and validate solutions
Regularly set up, configure, test, debug, and troubleshoot network-related features
Create, maintain, and execute a suite of critical manual tests
Leverage the automation framework to efficiently exercise functionality for faster feedback
Provide methods to identify and reduce repetitive manual test runs while maintaining a high level of quality
Maintain a collection of physical devices and virtual environments for testing various scenarios
Regularly report quality status to all stakeholders on key features

Qualification

Manual E2E testingL3 to L7 networkingNetwork protocolsDevice connectivity testingPythonMobile Device ManagementPhysicalVirtual environmentsAnalytical mindsetAttention to detailCommunication skills

Required

Background in QA and hands-on experience with mobile and desktop device networking configurations across Windows, Linux, and macOS platforms
Understanding of how data is managed on each device and routed across public and private cloud environments
Adept at reviewing functional specifications, participating in technical design reviews and designing test scenarios
Setting up physical and virtual environments to properly exercise all features
Passion and curiosity for understanding how services work to debug issues at all levels
Adept at distilling complex scenarios into actionable reports
Comfortable raising issues and clearly articulating details in tests, bug reports, test environment documentation and team-wide updates

Preferred

Experience with manual E2E testing of network-based apps, especially VPNs (e.g. DNS, protocols, throttling, packet loss, etc.)
Strong knowledge of L3 to L7 networking technologies (Major networking certifications are a plus)
Experience with IP, TCP, UDP, DNS, QUIC, H/3 and proxying, routing, switching concepts
Strong knowledge of macOS, Windows, Linux, and mobile client (iOS, Android) platforms
Experience with testing device connectivity across networks (wired-to-wireless, cellular-to-wireless)
Strong attention to detail for building test plans and analytical mindset when debugging issues
Experience setting up and maintaining physical and virtual device environments
Adept at finding edge cases and going beyond surface-level testing
Consistently think of scenarios which could cause a poor customer experience
Proficient with running and interpreting traffic captures, gathering logs, and reporting test results
Experience using one or more Mobile Device Management platforms (MDMs)
Empathetic, proactive, and constructive communication skills, verbal and written
Experience with Python to understand automated tests and framework capabilities
Develop scripts to assist in testing and convert tests from manual to automated

Company

Cloudflare

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Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.
dateFounded in 2009
location
San Francisco, California, USA
people-size1001-5000 employees
web-link
http://www.cloudflare.com

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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Recent News

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2026-01-11
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Cloudflare threatens Italy's Olympic services over piracy fine
2026-01-11
Company data provided by crunchbase