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Cylake

Security Research Intern (2027 Masters/PhD)

Sunnyvale
Level
Intern
Work type
On-site · Sunnyvale

Not stated in the posting: salary, visa.

Open. First seen 3 October 2026.

About the role

Your Impact

Join a small team building the next generation of Cyber Security products from the ground up. Led by industry veterans with a proven track record of success - you will get to architect, build, and deliver hugely impactful products with this world class team. You will have the opportunity to grow your career and skills along with the company from the very start.

Role Overview

As a graduate level research intern in cyber attack and defense, you will take on a focused research problem in threat detection to working prototype on our next-gen security platform. You will study how modern adversaries operate, translate that understanding into detection logic and research tooling, and work directly with the researchers and engineers building the platform. This role offers the opportunity to see academic research meet production security at an early-stage company.

Required Experience

  • Currently enrolled in a Master's or Ph.D. program in Computer Science, System/Network Security, or a related technical field, with an expected graduation date by 2028
  • Coursework, research, or project experience in one or more of the following: cyber security, malware, network traffic, web and vulnerability exploitation, large-scale data analysis, or machine learning
  • Hands-on familiarity with one or more of the following areas: threat hunting, malware analysis and sandboxing, vulnerability analysis, reverse engineering, offensive security, machine learning, or penetration tests
  • Working understanding of modern attacks and evasion techniques, malware behaviors and countermeasures, the MITRE ATT&CK framework, and cyber kill chain/TTPs is a plus
  • Strong proficiency in Python programming and system programming with C/C++/Rust/Go is a big plus
  • Great passion for security research; strong communication and documentation skills
Cylake's standard text

We’re committed to building a diverse, inclusive workplace where everyone can do their best work. We are proud to be an equal opportunity employer and do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. If you require a reasonable accommodation during the application or interview process, please let us know — we’re happy to support you.

What this role asks for

Particular to this role

C++ · Machine Learning · Penetration Testing

Rare in Cylake's other 14 open postings.

Standard for security roles

Python

Common in security postings at any company.

In most of Cylake's ads

Cybersecurity

Named in most of its open postings, whatever the role.

78% of this description is written for the role. The rest is Cylake's standard text, folded away below.

Read against Cylake's other open postings on this site.

The team: Engineering HIRES STEADILY

This role is one of 12 open in Engineering. 1 was posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Cybersecurity (12 of 12), Rust (8 of 12), Python (7 of 12), C (4 of 12), Golang (4 of 12), C++ (3 of 12), Linux (3 of 12)

OTHER ROLES ON THIS TEAM

From the team and dates on Cylake's own job board.

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