Lead network security efforts within Roblox’s Network Security pod, partnering across teams to strengthen protections for services and platforms.

Find security vulnerabilities and gaps in network infrastructure; propose solutions and drive engineering work to implement improvements alongside infrastructure teams
Design, develop, and optimize new systems using software engineering skills and system thinking to reduce external threats and internal risks
Deliver network security design reviews and guidelines for Roblox tools, services, and platforms

8+ years of relevant professional experience
Ability to write high-performance code for large-scale distributed services; experience with at least one language such as Golang or C++, with eagerness to learn additional languages and technologies
Experience designing and building production services in networking and security, including examples such as L4/L7 network proxies, load balancers, IDS/IPS, and firewalls
In-depth knowledge of network routing and protocols, including TCP/UDP, DHCP, and DNS, plus attack vectors, techniques, and remediations
Strong interest or experience with advanced packet processing technologies and frameworks, such as DPDK and eBPF (a big plus)
Comfort working with your direct team and cross-functional partners
Hands-on experience building high-performance, reliable systems; strong understanding of network and security fundamentals
Ability to gather data and make informed decisions when answers are not immediately clear
Willingness to challenge the status quo when it no longer holds and take on large, complex problems

Full-time employees are also eligible for equity compensation and benefits as described on the benefits page

San Mateo, CA onsite
For roles based at headquarters: onsite Tuesday, Wednesday, and Thursday; optional presence on Monday and Friday (unless otherwise noted)

For US-based roles: the company may not be able to employ candidates for certain US visa categories and may not support future H-1B sponsorship at this time

Principal Network Security Engineer

Job Description