Senior Software Engineer, Application Security

United States Digital Space LLC; San Francisco (CA); On-site; USD 196,000 - 220,500; Full time

Job summary

United States Digital Space LLC is seeking a Senior Software Engineer for the Application Security team in the United States. You will protect hundreds of millions of user accounts by designing secure, user-facing security solutions and leading authentication enhancements.

The role emphasizes hands-on development, cross-functional collaboration, and ongoing research into modern authentication and session security practices, with opportunities to affect product security at scale.

Qualifications

• 5+ years of experience securing production applications.
• 3+ years programming in at least one general-purpose language (Python, Go, Java, or Rust).
• Hands-on experience shipping production software with security features.
• Experience with authentication and account security (WebAuthn, passkeys, FIDO2, MFA, session management).
• Ability to guide engineers on secure design and implementation.
• Experience leading security projects with cross-functional teams.
• Experience building or hardening client applications (desktop or native mobile).
• Experience operating in Google Cloud or other cloud platforms.

Responsibilities

• Join an engineering team designing and implementing full-stack, user-facing security solutions that protect hundreds of millions of the company users.
• Lead full-stack work to strengthen session security and authentication for the company’s users.
• Improve, operate, and maintain security-critical authentication services.
• Partner with Product teams to drive adoption of stronger authentication and to ship user-facing account security tools.
• Identify and design solutions for emerging threats to user account security.
• Research and implement new security capabilities for the platform, staying current on the authentication and session security landscape.
• Build security controls and tools that emphasize self-service, automation, and performance to help identify and mitigate account security flaws.

Skills

Security engineering

Full-stack development

Authentication security

Cloud experience

Leadership

Job description

the company has a highly engaged community of millions of daily active users who use the platform for many different reasons, but there’s one thing that nearly everyone does: play video games. the company plays a uniquely important role in the future of gaming, and we are focused on making it easier and more fun for people to hang out before, during, and after playing games.

This position is US-based only.

the company empowers people to create spaces where they can find a sense of belonging in their lives. Millions of people trust the company to keep their communications secure, private, and out of the hands of evildoers, so security and privacy are necessary to the company's success.

We are looking for a Senior Software Engineer to join our Application Security team and protect the company’s users where it matters most, their accounts. If you are an engineer with a wealth of experience making the secure way the easy way, a deep sense of curiosity, and an endless desire to improve the company, read on!

What you'll do

• Join an engineering team designing and implementing full-stack, user-facing security solutions that protect hundreds of millions of the company users.
• Lead full-stack work to strengthen session security and authentication for the company’s users.
• Improve, operate, and maintain security-critical authentication services, owning their correctness and security.
• Partner with Product teams to drive adoption of stronger authentication and to ship user-facing account security tools.
• Identify and design solutions for emerging threats to user account security.
• Research and implement new security capabilities for the the company platform, staying current on the authentication and session security landscape.
• Build security controls and tools that emphasize self-service, automation, and performance to help identify and mitigate account security flaws.

Who you are

• You have 5+ years of experience securing production applications.
• You have 3+ years of experience programming in at least one general-purpose programming language (e.g., Python, Go, Java, or Rust).
• You have hands-on experience building and shipping production software, including security features, controls, frameworks, or guardrails.
• You have hands-on experience with authentication and account security such as WebAuthn, passkeys, FIDO2, MFA, and session management.
• You are comfortable reasoning about the security of complex systems, even if they contain components you aren’t familiar with, and can give engineers clear, sound guidance on secure design and implementation.
• You have experience leading security projects with a cross-functional group.
• You have experience building or hardening client applications, such as desktop or native mobile apps.
• You have experience operating in cloud-based environments (we use Google Cloud, but experience with other platforms is okay too).

Bonus points

• Experience programming in at least one systems programming language (e.g. C, C++).
• Experience developing, operating, and debugging production systems.
• Familiarity with common application vulnerabilities on the platforms the company ships on (that's all of them).

The US base salary range for this full-time position is $196,000 to $220,500 + equity + benefits. Our salary ranges are determined by role and level. Within the range, individual pay is determined by additional factors, including job-related skills, experience, and relevant education or training. Please note that the compensation details listed in US role postings reflect the base salary only, and do not include equity, or benefits.

Why the company? the company plays a uniquely important role in the future of gaming. We're a multiplatform, multigenerational and multiplayer platform that helps people deepen their friendships around games and shared interests, and helps developers build and grow their businesses. We believe games give us a way to have fun with our favorite people, whether listening to music together or grinding in competitive matches for diamond rank. Join us in our mission! Your future is just a click away!

the company is committed to inclusion and providing reasonable accommodations during the interview process. We want you to feel set up for success, so if you are in need of reasonable accommodations, please let your recruiter know.