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Roblox

Senior Software Engineer, Runtime

Roblox · San Mateo, CA, United States

Posted about 2 months ago

or apply directly on Roblox's site. We never take the application ourselves.

Is this posting real?

This role has been open
49 days
Roblox's roles stay open a median of 66 days
Reposted
No
Salary listed
No
0% of Roblox's roles list one
Ghost-job risk at Roblox
high
200 stale, 9 reposted of 234 open
Hiring momentum
313 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-08

Measured from postings appearing on and disappearing from Roblox's own greenhouse board since 2026-08-03. Full hiring picture for Roblox.

About this role

As a Senior Software Engineer in the Runtime team at Roblox, you will focus on the Concurrency system, taking ownership of the task scheduler, fiber runtime, and async APIs. Your role involves researching and implementing performance improvements for the engine, debugging production failures across various platforms, and collaborating with other teams on concurrency-related challenges.

Our read on this posting2.8out of 5
benefits
1/5
freshness
4/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Roblox as an employer.

What you need

  • Strong modern C++ (C++17 or newer) in a large, complex production codebase
  • Deep multithreading/concurrency experience — schedulers, thread pools, lock-free programming, atomics, memory models
  • Comfort profiling and reasoning about performance at the OS/CPU level

Nice to have

  • Game engine or real-time systems experience
  • Fiber/coroutine runtimes, work-stealing or job-system schedulers
  • Cross-platform low-level development (Android, iOS, console)
  • Track record as the go-to expert other teams consult on a system

What you get

  • Equity compensation
  • Benefits as described in the posting

Worth weighing

  • No specific mention of remote work options beyond the hybrid schedule
  • Salary range provided but subject to change and dependent on various factors
  • Limited information on career growth opportunities within the role

Summarised from Roblox's posting. Read the full original.

Listed by Roblox on their greenhouse job board, last confirmed open on 2026-10-08. PitchMeAI is not the employer.

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