Systems Test Engineer - Zero Trust Client · Cloudflare

Sat, 25 Apr 2026 20:50:19 GMT
Engineering

Cloudflare · Hybrid · hybrid

About Us

At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies.

We protect and accelerate any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks.

Available Locations: Austin

Summary

The Zero Trust QA team is looking for a Systems Test Engineer to test and exercise our Zero Trust products similar to our customers’ devices and infrastructure. You will start from the customer’s perspective using Cloudflare WARP and Cloudflare Tunnel, which are network and security-focused applications that enable secure communications between our customers’ devices and their private infrastructure.

You will expand test coverage to additional Zero Trust products and services to close test gaps and increase coverage for full product validation.

What you’ll do

As a Systems Test Engineer, you will own a variety of technical and product-focused responsibilities to ensure we deliver a high-quality security product.

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

What you’ll bring

We expect you to have a background in QA and hands-on experience with mobile and desktop device networking configurations across Windows, Linux, and macOS platforms. You'll understand how data is managed on each device and routed across public and private cloud environments.

You will be adept at reviewing functional specifications, participating in technical design reviews and designing test scenarios and setting up physical and virtual environments to properly exercise all features.

Your passion and curiosity for understanding how our services work will be crucial in debugging issues at all levels.

Additionally, you should be adept at distilling complex scenarios into actionable reports and working towards resolution with development, product, and QA team members.

Examples of desirable skills, knowledge and experience

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 go 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

What Makes Cloudflare Special?

We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul.

Fundamental to our mission to help build a better Internet is protecting the free and open Internet.

Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost.

Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration.

Since the project, we've provided services to more than 425 local government election websites in 33 states.

1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver.

This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released.

Here’s the deal - we don’t store client IP addresses never, ever.

We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers.

Sound like something you’d like to be a part of? We’d love to hear from you!

This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations.

Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.

Cloudflare is proud to be an equal opportunity employer.

We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness.

All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law.

We are an AA/Veterans/Disabled Employer.

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