Senior SRE: AI-Driven Reliability & Security Lead

Devopsroles; San Francisco (CA); On-site; USD 195,000 - 240,000; Full time

Benefits offered by this job

Medical, dental, and vision plans

401(k) with company match

Bonus opportunities

Stock options

Job summary

UnitedMasters is seeking a senior-level SRE and security-focused engineer to own reliability tooling and agentic security pipelines. You will collaborate across platform, data, QA, and product teams to embed secure-by-default practices and scalable tooling.

You will lead incident response, define SLAs/SLOs, and guide design decisions toward robust, cost-effective, and auditable systems across AWS infrastructure.

Qualifications

• Senior-to-staff SRE/infrastructure experience at scale.
• Hands-on application/infrastructure security leadership.
• Experience building with LLMs and agentic systems; understands failure modes and human oversight.
• Strong software engineering fundamentals; builds tools and systems.
• Coaching instinct; measures impact by elevating teams.

Responsibilities

• Partner with platform, data, QA, and product teams to understand automation, infrastructure, monitoring, and security needs.
• Build tooling and processes that solve the problems those conversations surface.
• Build an agentic vulnerability detection and mitigation pipeline with human-in-the-loop guardrails.
• Embed security into the development lifecycle, including threat modeling and secrets management.
• Lead security and reliability incident response as first-class operational concerns.
• Define company-level SLAs, SLOs, and error budgets, and help teams set their own.
• Steer system design toward shared tooling and decisions for reliability, security, and maintainability.
• Join the on-call rotation as a peer to spot process gaps and coach on response.
• Own our AWS infrastructure and set long-term strategy for reliability and security posture.

Skills

SRE / Platform engineer

Security engineering

LLMs and agentic systems

Software engineering fundamentals

Coaching / mentoring

Job description

UnitedMasters is seeking a senior-level SRE and security-focused engineer to own reliability tooling and agentic security pipelines. You will collaborate across platform, data, QA, and product teams to embed secure-by-default practices and scalable tooling.

You will lead incident response, define SLAs/SLOs, and guide design decisions toward robust, cost-effective, and auditable systems across AWS infrastructure.