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Principal Network Security Engineer
Job in
San Mateo, San Mateo County, California, 94409, USA
Listed on 2026-10-23
Listing for:
VulnU
Full Time
position Listed on 2026-10-23
Job specializations:
-
Security
Cybersecurity, Network Security
Job Description & How to Apply Below
· roblox.com Category:
Network Security
Location:
San Mateo, CA, United States Level:
Staff / Principal## Quality of life
What the posting states. Hover or tap a perk to see the line it came from.
* Equity* Retirement match
* Flexible PTO
* Paid parental leave
Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators.
At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.
A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.
Roblox runs a global scale network with a number of data centers and public clouds to provide services to millions of users, and creates a broad threat landscape. As a Principal Security Software Engineer on the Network Security pod, you will help shape and implement our network security strategy and controls. You'll have a big impact while collaborating with security and cross-functional teams to secure our networks, protect our services and this role, you’ll work closely with other people in the Information Security (Info Sec) team as well as partner with multiple Roblox infrastructure engineering teams.
You will Identify security vulnerabilities gaps in our network infrastructure, propose solutions and drive engineering effort for implementation, partner with our infrastructure teams on improvements.
Design, develop, and optimize novel solutions systems using your software engineering skills and system thinking, to protect Roblox’s networks from external threats and internal risks.
Provide design reviews guidelines from network security perspective for Roblox’s tools, services, and platforms.
You have8+ years: of relevant professional experience.
Programming Proficiency:
Able to write high-performance code for large scale distributed services with at least one programming language such as Golang or C++, and you are eager to learn new languages and technologies.
Hands-on experience:
Designing and building production level services in fields of networking and security, such as L4/L7 network proxies, load balancers, IDS/IPS, firewalls, knowledge of:
Network routings and protocols (TCP/UDP, DHCP, DNS, etc.), attack vectors, techniques, and remediations.
Experience with : advanced packet processing technologies and frameworks, such as DPDK, eBPF, is a big plus.
You are Collaborative:
You love working with your direct team and cross-functional partners.
A Self-driving Software Engineer:
You’re well-versed in the depths of networks or security, with hands-on experience in building high performance and reliable systems.
Comfortable with ambiguity:
You can gather data and make informed decisions when there is no clear answer.
Eager to solve hard problems:
You challenge the status quo when it no longer makes sense, and don’t shy away from big challenges.
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…
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