Staff Site Reliability Engineer

The role

You will own the intersection of reliability and security by building tooling, monitoring, and systems design. You will lead the design of agentic, AI-driven security pipelines and coach peer developers to improve reliability and security.

What you will do

• Partner with platform, data, QA, and product teams to understand automation, infrastructure, monitoring, and security needs.
• Build tooling and processes to solve identified problems.
• Build and maintain an agentic vulnerability detection and mitigation pipeline.
• Embed security into the development lifecycle.
• Lead security and reliability incident response.
• Define company-level SLAs, SLOs, and Error Budgets.
• Steer system design toward shared tooling for reliability, scalability, security, and maintainability.
• Join the on-call rotation to spot process gaps and coach on response.
• Act as a senior escalation for infrastructure and security issues.
• Own AWS infrastructure and set long-term strategy for reliability and security posture.

Required qualifications

• Senior-to-staff experience as an SRE, platform, or infrastructure engineer, owning production reliability at scale.
• Hands-on application and/or infrastructure security experience.
• Practical experience building with LLMs and agentic systems.
• Strong software engineering fundamentals.

Benefits

• Company-sponsored medical, dental, and vision plans
• 401(k) with company match
• Additional compensation opportunities such as bonuses and stock options

About the company

UnitedMasters is a marketplace that connects artists, brands and fans. It includes the creative advertising agency Translation.