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Security Researcher (Internet Measurement)

Remote

Company Background

Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide.

At Censys, our mission is to be the single source of truth for everything on the internet. We build the most comprehensive and up-to-date view of the world’s hosts, certificates, and services, empowering defenders to uncover vulnerabilities and adversary infrastructure before it’s too late.

We are seeking a Security Researcher with deep expertise in internet measurement and internet-wide scanning to join our Research team. In this role, you’ll use the industry’s most robust internet data to conduct groundbreaking research, uncover malicious activity, and share insights that shape the security community’s understanding of global threats.Security researchers at Censys are technical innovators and creative problem solvers. You’ll generate your own ideas for investigations, develop novel ways to analyze massive internet datasets, and execute projects that advance both Censys’ strategic vision and the state of internet security research.One week you might map the global exposure of a new CVE across millions of hosts; the next, you might characterize the internet-wide footprint of a fast-spreading C2 framework. Using Censys’ unique vantage point, you’ll illuminate patterns of vulnerability and adversary behavior that others cannot see.

 

What you’ll do:

  • Conduct internet-wide measurements to discover, track, and analyze vulnerable or malicious infrastructure.
  • Perform deep-dive investigations into emerging threats, producing high-quality research reports and intelligence products.
  • Partner with Product and Engineering to prototype new detection capabilities and guide product direction with your findings.
  • Share your research with the broader community through blogs, whitepapers, and conference talks—serving as a public voice for internet measurement–driven security.
  • Stay current on industry trends and geopolitical developments; leverage both open-source and classified sources to contextualize findings.
  • Deliver one-off research projects in support of customers and special initiatives.

 

Skills you’ll have: 

  • 5+ years in cybersecurity with significant operational or research experience (e.g., threat hunter, analyst, engineer, or researcher).
  • Strong networking and security fundamentals, including hands-on familiarity with tools like nmap, ZMap, Masscan, and Wireshark.
  • Solid understanding of internet protocols and common vulnerabilities.
  • Experience with internet measurement and scanning techniques; ability to design, execute, and interpret internet-wide scans.
  • Strong data analysis skills: working with large datasets, APIs, and tools such as SQL or Jupyter notebooks
  • Programming experience for computational analysis (e.g., Python, Go, or similar).
  • Familiarity with analytic tradecraft and intelligence frameworks.
  • Excellent written and verbal communication skills, including the ability to explain technical findings to both experts and general audiences.
  • Knowledge of statistical or machine learning techniques for security data analysis.
  • Experience using Censys Search or similar internet intelligence platforms.

For candidates located in a high cost of living location, the base salary range for this role is $165,000 to $184,000 USD. 

For candidates located everywhere else, the base salary range for this role is $145,000-$180,000. 

This position is located remotely with no expectation to come into an office. 

Why Join Us?

At Censys, you’ll do research that truly matters—helping governments, Fortune 500 companies, and the global security community understand and defend the internet. You’ll have the rare opportunity to work with the largest, most comprehensive internet scan data available, and to see your work directly impact both product innovation and global security practices.

Censys is an equal opportunity employer. We celebrate diversity and are committed to building an inclusive environment for all employees.

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