Principal Security Software Engineer, Application Security

You have:

• 8+ years of professional experience in cybersecurity, with a deep background in application security, data encryption, and compliance with security standards, as well as knowledge of network and cloud security.
• Expertise in explaining complex security challenges and solutions to both technical and non-technical leadership.
• Proven ability to build strong relationships and influence principal engineers across teams.
• Experience in software and infrastructure architecture with a focus on security.
• Extensive experience with common code and network vulnerabilities, their impacts, and remediation strategies.
• Background in writing code in at least one programming language, such as Python, Golang, or C#, and a scripting language like Bash or Python.
• Applied knowledge of cryptography, PKI, TLS, and practical implementations.
• Experience with threat modeling and Secure Software Development Life Cycles.
• Experience operationalizing security best practices in large-scale internet environments.
• Familiarity with network and server hardware, as well as Linux and Windows security.
• Familiarity with secure deployment patterns for AI agents, including isolation strategies (sandboxing, microVMs), secrets protection, and audit/logging for agent capabilities.
• Familiarity with enabling safe AI adoption at scale, balancing security, developer productivity, and organizational risk.
• A team-oriented, collaborative professional who enjoys working with others.
• Passionate about security and knowledgeable about security principles, understanding their value to an organization.
• Passionate about long-term solutions that drive lasting security improvements, prioritizing sustainable change over quick fixes.

For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below.

The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand.

Therefore, in some circumstances, the actual salary could fall outside of this expected range.

This pay range is subject to change and may be modified in the future.

All full-time employees are also eligible for equity compensation and for benefits as described on this page.

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.

For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.