Internet Security Data Scientist



Data Science
San Francisco, CA, USA · Seattle, WA, USA · San Francisco, CA, USA
Posted on Wednesday, July 10, 2024

At Censys, we know the internet and cloud better than anyone else. Censys stands at the forefront of internet and cloud expertise, empowering customers through our Attack Surface Management solutions. We offer a unique attacker-centric perspective, providing a comprehensive view of external internet and cloud assets to prioritize and mitigate critical risk exposures effectively. Our daily IPv4 scans and the world’s largest SSL/TLS Certificate database ensure customers have continuously updated attack surface insights. Enterprises rely on Censys to stay ahead of cyber threats and proactively safeguard against attacks, driving tangible impact in the digital landscape.

Role Summary:

Censys is looking for a Data Scientist or Security Research Engineer with domain expertise in Internet Security to join our engineering organization to lead our efforts in providing deep and contextual insights into our world class Internet Map datasets. Censys conducts the most thorough and comprehensive scans of the public Internet, allowing our customers to see the ground-truth of what services and devices are connected to the Internet.

This role will help us to derive deeper insights from our data and surface those directly to our customers through additional embedded context. Through the use of data analysis and machine learning techniques, Censys seeks to increase the fidelity of our scanning coverage, software and hardware identification, threat identification, and to attribute ownership of Internet facing assets to global businesses and entities.

Why Censys Sticks Out:

  • Humble Brilliance: We celebrate intelligence and foster a culture where tackling cybersecurity challenges is exciting and rewarding.
  • A Mosaic of Minds: Our diverse team brings together various talents and backgrounds, fostering true innovation through diverse perspectives.
  • Thinkers and Tinkerers: At Censys, we encourage questioning the status quo, experimenting, and pushing boundaries to drive breakthroughs.
  • Coffee-Fueled Collaboration: Collaboration is at the heart of our success, fueled by a shared passion for disrupting the cybersecurity scene.
  • Trailblazing Impact: Your innovations at Censys make waves in real-world cybersecurity, shaping the future and leaving a lasting legacy.
  • Life Beyond the Firewall: We prioritize work-life balance and support your well-being inside and outside the office.
  • Empowered Voices: Your voice matters at Censys; we champion an inclusive culture where diverse perspectives drive change.

What You'll Do:

  • Develop and implement data models to improve our Internet Map datasets to further drive competitive advantage.
  • Inspect, mine, transform, and analyze large datasets to identify patterns and trends to further support engineering efforts such as predictive modeling of scan targets, software and hardware identification, vulnerability detection, threat actor identification, and more.
  • Assist in data classification and dataset use through techniques such as entity and identity resolution, clustering, data gap analysis, and others.
  • Work closely with both Security Researchers, Data engineering, and MLOps teams to help take your work to production.


  • Master’s degree in Computer Science, Data Science, Mathematics, or other technical discipline (or equivalent professional experience).
  • Experience and domain knowledge in Internet protocols, technologies, and systems, cyber security, or security research.
  • 3+ years of experience using analytics to solve product or business problems, coding (e.g., Python, R, SQL), querying databases or statistical analysis.
  • Experience in Machine Learning and Deep Learning frameworks (e.g., TensorFlow or PyTorch).
  • Experience using Google BigQuery and its ecosystem.
  • Optional experience with GCP VertexAI.
  • Optional experience with training LLMs.
  • Ability to concisely communicate complex subject matter to technical and non-technical audiences.
  • Ability to work independently as a researcher while being part of a larger cross-functional team.

Our target salary range for this role is between $134,000 USD and $180,000 USD + bonus eligibility and equity.

Our roots are in Ann Arbor, Michigan with location hubs in Seattle, the Bay Area, Washington D.C., and Dublin, Ireland. Our innovation is fueled by the team’s global perspectives and diverse backgrounds.

Don't meet every single requirement? Studies have shown that women and people of color are less likely to apply for jobs unless they feel they meet every qualification. At Censys we are dedicated to building a diverse, inclusive, and authentic workplace - so if you're excited about this role but your past experience doesn't align perfectly with every listed requirement in the job description, we encourage you to apply anyway. You may be exactly who we need to fill this role or others!

We value diversity and are committed to creating an inclusive environment for all employees. Censys is an equal-opportunity employer.