Security Researcher & Analyst

Cloudflare•San Francisco, CA

About The Position

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. 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. We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new skills, and we are ready to help you do that. We cannot complete our mission without building a diverse and inclusive team. We hire the best people based on an evaluation of their potential and support them throughout their time at Cloudflare. Come join us! Available Locations: Austin, TX Overview Initially this is a very tactical role, focused on supporting Intel Team's day-to-day operations. Intel team consumes approximately 35 different threat data feeds, runs 5 different machine learning models, and has data integrated into six different products in the Cloudflare portfolio.

Requirements

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 e.g. MITRE ATT&CK Framework, Lockheed Killchain
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" DNS, HTTP, TCP/IP, TLS, public key encryption
Ability to reliably execute several hours a day of operational support tasks
Ability to communicate to stakeholders and management when priorities change

Nice To Haves

Basic front-end or full-stack development skills preferred but not required

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