Email Security Detections Engineer

About Us

At Cloudflare, we have our eyes set on an ambitious goal: to help build a better Internet. Today the company runs one of the world’s largest networks that powers approximately 25 million 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! 

About the Department

Cloudforce One is Cloudflare’s threat operations and research team, responsible for identifying and disrupting cyber threats ranging from sophisticated cyber criminal activity to nation-state sponsored advanced persistent threats (APTs).  Cloudforce One works in close partnership with external organizations and internal Cloudflare teams, continuously developing operational tradecraft and expanding ever-growing sources of threat intelligence to enable expedited threat hunting and remediation.  Members of Cloudforce One are at the helm of leveraging an incredibly vast and varied set of data points that only one of the world’s largest global networks can provide.  The team is able to analyze these unique data points, at massive scale and efficiency, synthesizing findings into actionable threat intelligence to better protect our customers.

About the Role

Cloudflare is a system spanning the globe, on a mission to make the internet better, safer, and more powerful everyday.  To help fulfill this mission, we are seeking a talented Security Detections Engineer to identify, track, and defeat sophisticated email-borne cyber threats.  In this position, you will examine and mitigate threats in real-time, leveraging emerging technologies to build detections that protect millions of people from phishing attacks.  Your efforts will help us in our constant pursuit of reaching far beyond today’s email security market.

As a Security Detections Engineer, your analytical thinking and quick action will be the key to our success. You will identify Tactics, Techniques, and Procedures (TTPs) of ongoing and ever-evolving cyber attacks to protect our global customer base.  You will work in close collaboration with team members to develop new and innovative ways to present and interact with our unique insights.  You will stop the adversary. 

Examples of desirable skills, knowledge and experience

  • Experience in one of the following: Email and/or Metadata analysis
  • A passion for analyzing attacker TTPs at varying levels 
  • Ability to understand the latest security trends as they relate to email-borne threats
  • Experience using a comprehensive data analysis platform and rule configuration
  • Understanding of the cyber threat landscape, cyber intelligence, and working knowledge of threat actors and their techniques
  • Experience tracking and analyzing cyber campaigns utilizing technical Indicators of Compromise (IOCs)
  • Ability to synthesize technical information and document it in a non-technical manner through both graphical and verbal representation
  • Capable and comfortable communicating actionable threat intelligence to both technical and executive-level stakeholders
  • Great oral and written communications skills
  • Desire to learn and improve
  • Willing and eager to share knowledge, and mentor

Bonus Points

  • Working knowledge of email authentication protocols, and experience in email header analysis
  • Experience analyzing, tracking and defending against phishing attacks
  • Strong understanding of the cyber threat landscape, with expertise in advanced persistent threat (APT) groups 
  • Working knowledge of OSI Layers
  • Familiarity with regular expressions and their practical application in tracking malicious activity
  • Working knowledge of SQL and devising SQL queries


Compensation may be adjusted depending on work location.

  • For Florida & Arizona based hires: Estimated annual salary of $104,000 - $127,000
  • For Colorado & Texas based hires: Estimated annual salary of $110,000 - $134,000
  • For New York City, Washington, and California (excluding Bay Area) based hires: Estimated annual salary of $123,000 - $151,000
  • For Bay Area-based hires: Estimated annual salary of $130,000 - $158,000


This role is eligible to participate in Cloudflare’s equity plan.


Cloudflare offers a complete package of benefits and programs to support you and your family.  Our benefits programs can help you pay health care expenses, support caregiving, build capital for the future and make life a little easier and fun!  The below is a description of our benefits for employees in the United States, and benefits may vary for employees based outside the U.S.

Health & Welfare Benefits

  • Medical/Rx Insurance
  • Dental Insurance
  • Vision Insurance
  • Flexible Spending Accounts
  • Commuter Spending Accounts
  • Fertility & Family Forming Benefits
  • On-demand mental health support and Employee Assistance Program
  • Global Travel Medical Insurance

Financial Benefits

  • Short and Long Term Disability Insurance
  • Life & Accident Insurance
  • 401(k) Retirement Savings Plan
  • Employee Stock Participation Plan

Time Off

  • Flexible paid time off covering vacation and sick leave
  • Leave programs, including parental, pregnancy health, medical, and bereavement leave

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: We equip politically and artistically important organizations and journalists 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: We created 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.

Path Forward Partnership: Since 2016, we have partnered with Path Forward, a nonprofit organization, to create 16-week positions for mid-career professionals who want to get back to the workplace after taking time off to care for a child, parent, or loved one. We released 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.

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 [email protected] or via mail at 101 Townsend St. San Francisco, CA 94107.

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