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 is reimagining the way people come together to connect, create, and express themselves. To support our massive scale, we are powered by microservices. The Application Networking team connects and secures these services, building ingress gateways that route traffic from the edge to core data centers, and managing the service mesh.

We are building a specialized high-performance compute cluster for Machine Learning inference and training. You will join our Kubernetes networking squad to support critical production workloads, and help us scale, harden, and operationalize the infrastructure that powers the next generation of AI on Roblox.

You will:

• Take ownership of critical networking components, transitioning them from proof-of-concept to production-ready systems capable of handling massive ML throughput

• Build the observability, alerting, and tooling required to maintain 99.99% reliability for our ML clusters.

• Deep dive into Cilium and eBPF to squeeze maximum performance out of the network, reducing latency for training jobs.

• Collaborate with our technical leads to implement complex networking features, ensuring high code quality and robust design.

• Serve as a primary escalation point for complex network issues in the Kubernetes layer, troubleshooting across the stack (kernel, CNI, service mesh).

• Act as a senior voice on the team, mentoring junior engineers and promoting best practices in testing, deployment, and reliability engineering.

You have:

• A professional with 5+ years of experience, with a strong focus on running Kubernetes in production environments. You know what breaks at scale and how to prevent it.

• Deeply knowledgeable of the Kubernetes networking model (CNI, Services, Ingress, Kube-proxy) and have managed clusters with significant traffic.

• Familiar with Cilium and eBPF and comfortable working with Linux networking fundamentals (TCP/IP, routing tables, iptables/nftables).

• Excellent at taking a high-level architecture strategy and turning it into working, tested, and deployable code.

• Fluent in C/C++, Go, or Rust.

• Experienced with on-call rotations and approach infrastructure with a "reliability-first" mindset.

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.

Annual Salary Range**$242,100—$293,800 USD**
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.