Software Engineer, Account Authentication

Roblox; San Mateo (CA); On-site; USD 153,000 - 197,000; Full time

Job summary

Roblox is seeking an Account Authentication Software Engineer to secure and scale our user base, delivering just-in-time friction and robust security controls for up to 1 billion active users across platforms. You will own end-to-end features in Rust, C++, and Lua, collaborate across Growth, Discovery, and Safety, and analyze usage data to improve safety and accessibility for all ages.

Role is based at our San Mateo, CA headquarters with onsite collaboration and clear career growth within Roblox

Qualifications

• Experience in software engineering or computer science.
• Experience building user-facing applications or services.
• Proficiency with Rust, C++, or Lua in projects.
• Experience collaborating with product stakeholders to define requirements.
• Strong focus on safety, data integrity, and policy compliance.

Responsibilities

• Own design, implementation and rollout of security-focused features across platforms.
• Collaborate with Growth, Discovery and Roblox Safety teams to align goals.
• Help define how goals are achieved and influence product direction.
• Shape users' initial Roblox experience with strong security expectations.
• Instrument and analyze usage data (A/B tests) to inform decisions.
• Deliver end-to-end stack work in Rust, C++, and Lua, leveraging AI tools where possible.

Skills

User-facing applications experience

Cross-functional collaboration

Safety and data integrity mindset

Tools

Rust

C++

Lua

C#

Javascript

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.

As a Software Engineer on the Account Authentication Team, you will help authenticate and authorize Roblox's user base, setting the foundation for every other feature on our platform.
You will build the authentication and security controls that meet each user's needs, along with just-in-time friction that adapts to each user's unique risk profile, all while scaling to 1 billion active users.

This is a rare opportunity to sit at the convergence of security, user experience, and scale. You'll join Roblox's Safety organization, whose mission is to become the leader in civil immersive online communities by detecting, removing, and preventing problematic accounts, content, and behavior, and by keeping accounts secure and free from compromise. The team draws on a broad tech spectrum, including machine learning, classifiers, experimentation, automation, and AI-powered filters, partnering with product teams to shape the roadmap, build safety products, and measure impact on our community of users and developers.

You Will:

• Own the design, implementation and landing of features that make Roblox more secure and more accessible for users of all ages on all platforms.
• Collaborate cross-organizationally with partner teams in Growth, Discovery and the broader Roblox Safety org.
• Help define how goals get accomplished and have real influence over product direction.
• Influence how users first experience Roblox, often forming their baseline expectations for what security should look like on the internet.
• Instrument and analyze user interaction data (A/B tests, usage metrics) to inform design decisions and maximize product impact.
• Own implementation end to end across the stack, contributing in Rust, C++, and Lua as projects require, using AI tools wherever possible.

You Have:

• 1-3 years of experience in Software Engineering/Computer Science
• Experience working on user facing applications or services
• Proficiency in one or more programming languages such as Rust, C#, and Javascript.
• Experience collaborating cross-functionally with Product stakeholders to define requirements and deliver technical solutions.
• A strong commitment to designing, implementing, and maintaining systems that prioritize user safety, data integrity, and compliance with safety policies.

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

$153,120 — $196,750 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.