Roblox · 3 days ago
Principal Software Engineer - Replication
San Mateo, CA
Full-time
Hybrid
Lead/Staff
$294K/yr - $343K/yr
8+ years expRoblox is a platform that empowers users to explore, create, play, learn, and connect in immersive digital experiences. They are seeking a Principal Software Engineer to enhance their Engine Replication Team, ensuring real-time communication of game states for a seamless player experience.
3D TechnologyGamingMetaverseOnline GamesSoftwareVideo Games
Responsibilities
Ensure the communication of the game state to all players
Help players experience the game as a nearly synchronous world
Work in all areas of the game platform for real-time communication
Architect and design high-performance and low-latency networking solutions for various game genres
Implement client-side prediction and server reconciliation, data serialization and compression, and lag compensation
Develop multi-threaded programming and thread-safe networking systems
Qualification
Required
A leading engineer with 8+ years of industry experience
Experienced with Game networking coming from a Game Engine/Studio
Amazing at systems-level C++ programming and are fascinated by the actual work the CPU does when you use smart pointers, templates, virtual functions, and blocks of memory, both structured and raw
Keen on each millisecond of the network exchanges: You know where the time goes and how to reduce the waste
Deep understanding of how high-performance and low-latency networking solutions for a variety of game genres, e.g., high-fidelity first-person shooters, massive multiplayer online games, are architected and designed. This includes architecting state synchronization, predictive mechanisms, and bandwidth optimization
Practical experience with core game networking paradigms, such as client-side prediction and server reconciliation, data serialization and compression (e.g., delta encoding), lag compensation
Extensive experience with multi-threaded programming, synchronization primitives, and designing thread-safe networking systems
Worked on some or all the devices Roblox supports - from desktop clients to mobile phone clients to console clients
Benefits
Equity compensation
Benefits as described on this page
Company
Roblox
Roblox is an online gaming and entertainment platform that offers a shared digital experience that brings people together through play.
1001-5000 employees
H1B Sponsorship
Roblox has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (240)
2024 (111)
2023 (139)
2022 (153)
2021 (91)
2020 (92)
Funding
Current Stage
Public CompanyTotal Funding
$874.45MKey Investors
Andreessen HorowitzAltos Ventures
2024-10-01Post Ipo Equity
2022-04-12Series Unknown· $17.71M
2021-08-11Series Unknown
Leadership Team
David Baszucki
Founder and CEO
Anupam Singh
VP Engineering, AI Platform, Infrastructure
Recent News
Greylock
2025-12-31
Company data provided by crunchbase