Senior Software Engineer, Reliability

Roblox Corporation; San Mateo (CA); On-site; USD 243,000 - 295,000; Full time

Job summary

Roblox Corporation in San Mateo, CA is seeking a Senior Software Engineer for the Reliability team. You will drive system evolution, ensuring performance, reliability, and efficiency while collaborating with cross-functional teams to support growth.

Role emphasizes fault tolerance, tooling, and observability to maintain Roblox's scale toward 1B daily users. Office presence Tue–Thu with optional Mon/Fri; salary range shown below.

Qualifications

• BS degree in Computer Science or related field.
• 4+ years of experience in Site Reliability or software engineering.
• Experience building reliable, scalable systems.

Responsibilities

• Create libraries for fault-tolerance and resilience (retries, circuit breakers, adaptive concurrency).
• Automate and standardize tooling to power Roblox's ecosystem.
• Develop production guardrails and load testing before deployments.
• Build monitoring/observability to diagnose capacity issues and degradations.
• Create canarying tools with alerting for production changes.

Skills

Go

C#

Java

Reliability tooling

System design

Education

Bachelor's degree in Computer Science

Job description

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.

Are you a seasoned engineer with a passion for reliability and scalability? We’re looking for exceptional Software Engineers to join the Reliability team at Roblox. In this pivotal role, you will drive the evolution of our systems, ensuring they meet the highest standards of performance, reliability, and efficiency. You’ll collaborate with cross-functional teams to build robust infrastructure that supports our growth. If you have a track record of solving complex technical challenges, we want to hear from you. Join us in shaping the future of our platform and delivering unparalleled value to our users.

At Roblox, our vision is to achieve 1 billion daily active users. We believe this engineer will be instrumental in driving us towards that ambitious goal.

You Will:

• Create libraries that promote fault-tolerance and resilience– like retries, circuit breakers, and adaptive concurrency limits.
• Build, automate and standardize process automation to create a "golden path" of tooling and platform support that powers the fundamental Roblox ecosystem.
• Create tooling that provides production guardrails, for example evaluating release candidate capacity with load testing tooling before deploying to production.
• Create performance monitoring services and observability towards understanding capacity issues and platform degradations.
• Create tooling that monitors production services and their changes, like generalized canarying services with alerting.

You Have:

• Experience: you have a BS degree (or equivalent professional experience) in Computer Science or related engineering field with at least 4+ years of experience with added advantage working in the Site Reliability space in SRE or Software Engineering
• Passion for systems: You have experience and good habits around building software and tools and getting them adopted. Your system's focus informs a view of code needing to be deeply reliable.

You Are:

• A Partner: You know that the best tools integrate broadly with the tooling ecosystem. You approach partners and processes with curiosity and seek to understand a problem deeply before you start coding.
• A Coder: you have experience writing common programming languages ( Go, C#, Java…).
• Self-organized: you're excited about getting in front of complex problems, organizing your work by any means possible; overcome emergent issues and contributing to long-running projects as a part of the team.
• Problem Solver: you ask the right questions to solve issues within your expertise and you use data to test your theories.
• Planner - You have experience in large project lifecycles. You have experienced working in sprints, breaking down complex tasks into milestones, and reporting status to keep project scheduling accurate.

Annual Salary Range

$243,290 — $295,250 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.

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.