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Roblox

Runs a platform where users build and play games

Principal Network Security Engineer

Security Engineering & ArchitectureConfirmed live in the last 24 hours
Full-timeSan Mateo, CA, USA

About the Job

Requirements

  • At least 8 years of relevant professional experience.
  • Ability to write high-performance code for large-scale distributed services in at least one programming language such as Go or C++, and willingness to learn new languages and technologies.
  • Hands-on experience designing and building production-level services in networking and security, such as L4/L7 network proxies, load balancers, intrusion detection/prevention systems, or firewalls.
  • In-depth knowledge of network routing and protocols, including TCP/UDP, DHCP, and DNS, as well as attack vectors, techniques, and remediations.
  • Ability to work collaboratively with the direct team and cross-functional partners.
  • Expertise in networks or security and hands-on experience building high-performance, reliable systems.
  • Ability to gather data and make informed decisions amid ambiguity.
  • Willingness to challenge existing approaches and tackle difficult problems.

Responsibilities

  • Identify security vulnerabilities and gaps in network infrastructure, propose solutions, drive engineering implementation, and partner with infrastructure teams on improvements.
  • Design, develop, and optimize novel solutions and systems using software engineering skills and systems thinking to protect Roblox networks from external threats and internal risks.
  • Provide design reviews and guidelines from a network security perspective for Roblox tools, services, and platforms.
  • Collaborate with the Information Security team and partner with multiple infrastructure engineering teams.

Desired Qualifications

  • Experience with advanced packet-processing technologies and frameworks such as DPDK and eBPF.

About the Company

Roblox

Runs a platform where users build and play games

Roblox runs an online platform where people play, chat, and hang out in 3D games built by its users rather than by the company itself. In 2025, Grow a Garden, a game a teenager made on Roblox, set the record for the most people playing one video game at the same time. Creators build games with Roblox Studio, a free design tool, and players join through the free Roblox app on phones, computers, game consoles, and VR headsets. Roblox makes money by selling Robux, a virtual currency players spend on avatar items and in-game extras, and it shares part of that spending with creators, who can exchange their Robux for real money. Roblox was founded in 2004 and is based in San Mateo, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Mateo, CA
Founded
2004

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