Offensive Security Engineer

Coreweave; Livingston (NJ); On-site; USD 165,000 - 242,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance – 100% paid for by CoreWeave

401(k) with a generous employer match

Flexible PTO

Tuition Reimbursement

Catered lunch each day

Job summary

CoreWeave is looking for an Offensive Security Engineer to lead security risk management efforts across systems. You will perform penetration testing, conduct threat modeling, and guide teams on security best practices.

This role requires strong experience in offensive security and programming skills, along with the ability to communicate security concepts effectively. Join us in ensuring the security of our infrastructure and applications.

Qualifications

• 5+ years of experience in offensive information security roles.
• Hands-on penetration testing experience and familiarity with offensive security tools.
• Excellent written and verbal communication skills.

Responsibilities

• Lead efforts to identify and mitigate security risks.
• Perform penetration testing and threat modeling.
• Develop and enforce security best practices.

Skills

Offensive security experience

Programming or scripting (Go, Python, C/C++)

Penetration testing

Knowledge of Linux

Kubernetes security

Communication skills

Education

Bachelor’s degree in Computer Science or related field

Tools

Offensive security tools

Job description

What You’ll Do:

CoreWeave’s Information Security team ensures that both internal and external systems are secure, resilient, and compliant. Our team partners with engineering and product teams to identify vulnerabilities, harden systems, and maintain a high standard of security across all infrastructure and applications that deliver high‑performance compute to our customers.

About the Role

As an Offensive Security Engineer at CoreWeave, you will lead efforts to identify and mitigate security risks across internal and external systems. You’ll perform penetration testing, conduct threat modeling, and provide guidance to engineering teams on secure design and best practices. This role also involves developing security tooling, researching emerging threats, and contributing to the continuous improvement of CoreWeave’s overall security posture.

Some of what you’ll work on:

• Perform penetration testing as well as purple and red team exercises.
• Conduct threat modeling, code reviews, and design reviews for development teams.
• Research new attack techniques and develop strategies to counter them.
• Develop and enforce security best practices and standards, maintaining internal compliance.
• Provide solutions to complex security issues, manage multiple tasks, and prioritize effectively in a fast‑paced environment.
• Present technical security information to both technical and non‑technical audiences.
• Maintain technical documentation, reports, and security tooling with attention to detail.
• Participate in other security‑related initiatives as assigned.

Who You Are:

• 5+ years of experience in offensive information security roles.
• Proficiency in at least one programming or scripting language (e.g., Go, Python, C/C++) for automation, code reviews, and tooling.
• Bachelor’s degree in Computer Science or related field
• Hands‑on penetration testing experience and familiarity with offensive security tools.
• Strong technical knowledge of Linux operating systems and containerized environments.
• Experience securing Kubernetes and understanding related security practices.
• Able to navigate ambiguity, identify root causes, and solve complex security problems.
• Excellent written and verbal communication skills with strong technical documentation abilities.
• Capable of working independently while managing multiple priorities in a fast‑paced environment.
• Strong desire to continuously learn and adopt new technologies and security techniques.

Preferred:

• Experience with firmware reverse engineering, analyzing binaries, bootloaders, and embedded systems for vulnerabilities.
• Relevant certifications such as Sec+, Net+, OSCP, or equivalent.
• Experience with EDR tuning, detections‑as‑code, or threat hunting as part of a Blue Team.
• Deep understanding of business‑wide security best practices and implementation strategies.

What We Offer

The base salary range for this role is $165,000 to $242,000. The starting salary will be determined based on job‑related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).

In addition to a competitive salary, we offer a variety of benefits to support your needs. The benefits below reflect our US‑based offerings; for roles in other locations, benefits vary and are shared during the hiring process. These include:

• Medical, dental, and vision insurance – 100% paid for by CoreWeave
• Company‑paid Life Insurance
• Voluntary supplemental life insurance
• Short and long‑term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement
• Ability to Participate in Employee Stock Purchase Program (ESPP)
• Mental Wellness Benefits through Spring Health
• Family‑forming support provided by Carrot
• Paid Parental Leave
• Flexible, full‑service childcare support with Kinside
• 401(k) with a generous employer match
• Flexible PTO
• Catered lunch each day in our office and data center locations
• A casual work environment
• A work culture focused on innovative disruption

California Applicants

California Consumer Privacy Act

Equal Opportunity & Accommodations

CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.

As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact [e-mail].

Export Control Compliance

This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.