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About the Role

We are seeking a highly skilled AI Security Research & Red team engineer to join our Red Team within the Security Threat Detection, Response and Emulation organization. This is a critical role that will be at the forefront of protecting our company and customers from malicious threats. You will be responsible for driving security research, exercises, and activities that emulate real world attackers and attacks to drive improvements in Cloudflare’s security posture focusing on AI, Agents, harnesses and LLM’s.

Responsibilities

Stay current with emerging threats and perform deep-dive research to identify AI-specific vulnerabilities and risks in addition to general vulnerabilities across Cloudflare’s products and services.
Identify AI-related attack surfaces through rigorous testing of agentic implementations and LLM usage which will help define requirements and implementation guidance while proactively.
Execution of full-chain red team operations targeting Cloudflare’s global infrastructure, corporate networks, and product ecosystems.
Establish a rigorous framework for testing "Security Efficacy"—measuring exactly how well our WAF, EDR, and SIEM detections perform against known TTPs (Tactics, Techniques, and Procedures).
Foster a highly collaborative relationship with the Blue Team (Detection & Response) to ensure findings are translated into immediate defensive improvements.
Be a technical leader, providing technical expertise while fostering a culture of curiosity, ethical hacking and partnering to improve Cloudflare’s security posture.
Translate complex technical exploits into risk-based narratives for leadership, helping prioritize engineering resources where they matter most.
Act as the "sparring partner" for SIRT, conducting unannounced exercises to refine playbooks, test on-call rotations, and ensure forensic tooling is effective.
Partner closely with Threat Detection & Threat Engineering teams to bridge the gap between adversary simulation and defensive coverage, identify detection gaps, lead new detection logic development, and establish validation frameworks.
Operate as "Customer Zero" of our own products, using red teaming findings to drive resilience in processes and implementations.
Bridge the gap between "paper security" and "technical reality" by providing empirical evidence of control effectiveness to GRC.

Requirements

4+ years in offensive security, application security or other relevant field
Deep knowledge of AI, Coding agents, LLMs, prompt engineering, AI-related attack vectors (e.g., prompt injection, jailbreaking), and Agentic concepts for red team use and testing Cloudflare products.
Strong background in manual penetration testing, exploit development, or cloud security (AWS/GCP/Bare Metal).
Experience using the MITRE ATT&CK framework to map coverage and identify "blind spots" in defensive telemetry.
Ability to explain a complex "0-day" exploit to a non-technical stakeholder while maintaining the respect of a deep-dive engineering team.
Knowledge of automated breach and attack simulation (BAS) tools, as well as custom-built frameworks for payload delivery and C2 infrastructure.

Skills

AI
Coding agents
LLMs
Prompt engineering
AI-related attack vectors
Agentic concepts
Manual penetration testing
Exploit development
Cloud security (AWS/GCP/Bare Metal)
MITRE ATT&CK framework
Automated breach and attack simulation (BAS) tools
Custom-built frameworks for payload delivery and C2 infrastructure

Location

New York

Work Type

Onsite

Experience Level

4+ years

Salary/Compensations

$166,000 - $208,000

Benefits

Equity

About the Company

At Cloudflare, we are on a mission to help build a better Internet.
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.
Cloudflare protects and accelerates 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.
Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.
At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with.
We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools.
Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up.
If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in.
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.

Equal Opportunity

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.
Cloudflare provides reasonable accommodations to qualified individuals with disabilities.
Please tell us if you require a reasonable accommodation to apply for a job.
Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.
If you require a reasonable accommodation to apply for a job, please contact us via e-mail at hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.