As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn’t changed — we’re here to stop breaches, and we’ve redefined modern security with the world’s most advanced AI-native platform. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We’re also a mission-driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. We’re always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Our University Recruiting program is dedicated to attracting and cultivating the future leaders of this industry. This program offers paid positions for students and recent grads, designed to provide exposure to work that makes an impact while being supported through a structured experience with seasoned professionals. Ready to join a mission that matters? The future of cybersecurity starts with you.

About the Role:

Our mission is to make all of our customers' security-relevant data continuously available for automated detection and response, threat hunting, and other Falcon platform use cases. To enable this, the systems behind NG-SIEM are growing to accommodate more than 100 PB of event and action data ingested every day and up to 10 years of retention. This system is critical to CrowdStrike and our customers, so building it to be resilient and highly available is not optional. We are building one of the industry's largest event data and search systems from the ground up.

At the core of this is a genuinely hard computer science problem. LogScale is an indexless database that still delivers fast and efficient search across exabytes of data. How we do that is part of what makes this work interesting. As a PhD intern you will be embedded in a team of PhDs and engineers in Aarhus working on problems that sit at the intersection of algorithms, data structures, query optimization and large scale distributed systems. You will work with people who know how to take research and turn it into technology that works in production. You will own a project from start to finish, from the initial idea and experimentation through to a working prototype that fits within CrowdStrike's production ecosystem.

This role is based in Aarhus, Denmark.

Example projects ( you'll focus on one primary project):

Improved Bloom Filters for N-gram Based Block Skipping
Improved storage format with better compression and faster access
Enable clustering and outlier function with a distributed streaming algorithms

You will be playing a role in ensuring that LogScale can continue with its successful durability and high availability. This role is open to candidates located in Aarhus, Denmark.

What You'll Do:

Own a research project end to end, from initial experimentation to a working prototype with real production impact
Work with a team of PhDs and engineers to develop new features and help push the scalability of our LogScale fleets forward
Contribute to solving real and open problems in large scale search and data storage
Learn continuously, from your colleagues and from working directly in a large and complex codebase

What You'll Need:

Currently enrolled in a PhD program in Computer Science, Software Engineering, or a related field, or expecting to graduate in 2027
Experience with a JVM-based programming language or similar
Available for 3 months of full-time work in our Aarhus office
A genuine interest in distributed systems and how large scale systems behave in production
You are comfortable working in a large codebase you only partly understand and can make practical tradeoffs between short term delivery and longer term product goals

Bonus Points:

Experience programming in Go
Experience with commercial clouds (AWS, Azure, GCP)

What You Can Expect:

Market leader in compensation and equity awards
Paid holidays (including birthday holidays) and 401k matching (where applicable)
Professional development opportunities including workshops, tech talks, and Executive Speaker Series
Assigned mentors from across the company for continuous support and feedback
Participation in companywide initiatives including FalconFIT, Wellness Programs, and Employee Assistance Program
Employee Networks, geographic neighborhood groups, and volunteer opportunities to build connections
Vibrant office culture with world class amenities
Ownership of impactful projects that move the company forward
Great Place to Work Certified™ across the globe

CrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued for who they are and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program.

CrowdStrike is committed to providing equal employment opportunity for all employees and applicants for employment. The Company does not discriminate in employment opportunities or practices on the basis of race, color, creed, ethnicity, religion, sex (including pregnancy or pregnancy-related medical conditions), sexual orientation, gender identity, marital or family status, veteran status, age, national origin, ancestry, physical disability (including HIV and AIDS), mental disability, medical condition, genetic information, membership or activity in a local human rights commission, status with regard to public assistance, or any other characteristic protected by law. We base all employment decisions--including recruitment, selection, training, compensation, benefits, discipline, promotions, transfers, lay-offs, return from lay-off, terminations and social/recreational programs--on valid job requirements.

If you need assistance accessing or reviewing the information on this website or need help submitting an application for employment or requesting an accommodation, please contact us at recruiting@crowdstrike.com for further assistance.

PhD Intern, Falcon NG-SIEM Search (Aarhus, Denmark)