Cloudflare · 1 day ago
Security Researcher & Analyst
Austin, TX
Full-time
Onsite
Entry, Mid LevelCloudflare is a company on a mission to help build a better Internet, running one of the world’s largest networks that powers millions of websites. The Security Researcher & Analyst role focuses on supporting the Intel Team's operations, including reviewing threat data feeds, maintaining application classifications, and collaborating with data scientists to identify security threats.
AnalyticsEnterprise SoftwareSecurityWeb Hosting
Responsibilities
Review domain miscategorizations
Maintain Application classifications
Review email miscategorizations
Submit IOCs to data pipeline based on external reports
Define automations and software requirements for support tooling
Define processes and procedures to create 24x7 coverage of miscategorizations
Continually evaluate the quality of threat data feeds, work to maximize value from them, evaluate new potential sources of data
Research observed IoCs and network behavior patterns and label data
Work with data scientists to identify security threats and create machine learning models
Be a team SME and resource for data scientists building security models and application developers building security products
Become a subject matter expert for internal teams consuming Intel team security and categorization data
Become the owner for Intel Team's strategy for false positive controls
Learn and understand current processes
Identify gaps and risk areas
Work the data scientists to test remediation strategies
Work the engineering teams to implement remediation strategies
Define and implement metrics for product efficacy
Research and plan potential software, data science or machine learning projects to improve false positive and false negative rates
Continually monitor data quality and bring data quality issues and proposed solutions to team leadership
Identify topical areas in cybersecurity where Cloudflare's unique network can be leveraged to improve user security
Write blog posts and communicate both internally and externally about Intel Team's work
Execute daily operational tasks and define automations to streamline operational tasks
Work with team to define technical requirements for security products
Research threats, exploits, and TTPs being defended against in products and work with engineers to create products that defend against them
Qualification
Required
Scripting in Python and Node/Javascript
Able to use git to create, edit, and review pull requests
Knowledge of and passion for cybersecurity
Knowledge of cyber security industry terms and concepts
Ability to learn about security threats and map them to the MITRE ATT&CK framework and Lockheed Killchain
Strong knowledge of networking and 'how the Internet works'
Ability to reliably execute several hours a day of operational support tasks
Ability to communicate to stakeholders and management when priorities change
Preferred
Basic front-end or full-stack development skills preferred but not required
Company
Cloudflare
Cloudflare is a web performance and security company that provides online services to protect and accelerate websites online.
Founded in 2009
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
2026-01-13
Data Center Knowledge
2026-01-13
Company data provided by crunchbase