Principal Software Engineer - Roblox Database

Roblox
San Mateo, CA
On-site

In the 12 months to 30 Jun 2026, Roblox filed 62 H-1B positions titled "Senior Software Engineer". Source: U.S. Department of Labor, LCA disclosure data. A record of filings already made, not a commitment to sponsor.

Who this role is best for

Geared toward senior engineers comfortable with distributed database internals and global-scale infrastructure, with a focus on open-source contributions and cross-functional leadership in a U.S.-based setting.

Best fit for

  • Candidates with 12+ years of experience in distributed database systems and a track record of leading technical design reviews.
    — “12+ years of experience in software engineering or a relevant field”
  • Individuals with a background in building and operating large-scale storage engines, particularly with C/C++ or Go.
    — “Deep expertise in database internals—B-trees, MVCC, WAL, query optimization, buffer management—and strong skills in C/C++, GO or Rust.”
  • Engineers who have worked on consensus algorithms and multi-region replication models for high availability.
    — “Hands-on experience with consensus algorithms (Raft, Paxos) and multi-region replication models that deliver strong consistency and high availability.”

Things to consider

  • This role may require in-office presence for U.S.-based positions, with limited flexibility.
    — “Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday”
  • Visa sponsorship is not available for this role, which may limit eligibility for non-U.S. citizens.
    — “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”

How to stand out

  • Highlight experience with elastic scaling and zero-downtime operations in your resume and interviews.
    — “Evolve the control plane to deliver elastic scaling, autonomous healing, and zero-downtime schema or tenant moves”
  • Emphasize your contributions to open-source databases or your ability to influence their future.
    — “Engage with the open-source community—upstreaming patches, presenting learnings, and influencing the future of Postgres, RocksDB and related ecosystems.”
  • Showcase your ability to translate ambiguous product requirements into technical roadmaps.
    — “Ability to turn ambiguous product requirements into a clear technical roadmap”
  • Demonstrate your experience in optimizing critical code paths using performance tooling.
    — “Profile and optimize critical code paths using kernel-level tracing and advanced performance tooling”
  • Demonstrate leadership in establishing best practices through design reviews and post-incident retrospectives.
    — “Establish engineering best practices by leading design reviews, performance benchmarks, failure drills, and post-incident retrospectives.”
Pace · SteadyCollaboration · HighAutonomy · MediumDecision Impact · Company

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • system reliability
  • high availability
  • performance improvements
Typical background
software engineeringdatabase developmentdistributed systems

Skills & requirements

Required

Distributed SystemsDatabase ArchitecturePerformance OptimizationAutomationConsensus Algorithms

Preferred

PostgreSQLRocksdbOpen-source Contributions

Stack & domain

C/c++GORustPostgreSQLRocksdbKubernetesNomad

About the role

Original posting from Roblox

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’s database team develops the next-generation, multi-tenant database platform that elastically scales and underpins every online data workload at Roblox. As a principal engineer on the database team, you will shape the architecture, build and launch critical database capabilities that keep our services fast, reliable and efficient at global scale. You will report to the Technical Director for Storage. 

You will:

Design and implement new engine features—indexing, storage formats, WAL and replication protocols, sharding, and query-planner enhancements—that push latency, throughput, and availability boundaries.

Evolve the control plane to deliver elastic scaling, autonomous healing, and zero-downtime schema or tenant moves across global regions.

Profile and optimize critical code paths using kernel-level tracing and advanced performance tooling; drive systematic tail-latency reductions.

Establish engineering best practices by leading design reviews, performance benchmarks, failure drills, and post-incident retrospectives.

Automate everything: develop frameworks for testing, CI/CD, rollout safety, observability, and autoscaling so that the platform operates hands-off at scale.

Mentor and unblock engineers, fostering deep database craftsmanship and disseminating knowledge across Storage, Platform, and product teams.

Engage with the open-source community—upstreaming patches, presenting learnings, and influencing the future of Postgres, RocksDB and related ecosystems.

You have:

12+ years of experience in software engineering or a relevant field

Deep experience with building and operating large-scale distributed databases or storage engines (e.g., PostgreSQL, MySQL/InnoDB, RocksDB, Spanner, Aurora, AlloyDB).

Deep expertise in database internals—B-trees, MVCC, WAL, query optimization, buffer management—and strong skills in C/C++, GO or Rust.

Hands-on experience with consensus algorithms (Raft, Paxos) and multi-region replication models that deliver strong consistency and high availability.

Proven success shipping high-QPS, low-latency services on container orchestration stacks (Kubernetes or Nomad) with comprehensive observability.

Ability to turn ambiguous product requirements into a clear technical roadmap and influence cross-functional stakeholders.

Passion for automation, rigorous testing, and data-driven decision-making that raises the reliability and efficiency bar.

Bonus: upstream contributions to PostgreSQL, RocksDB or other OSS databases; familiarity with disaggregated storage, HTAP workloads, or custom query languages.

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$345,040—$399,420 USDRoles 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.

Source: Roblox careers

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