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Senior Site Reliability Engineer at Block | Bay Area, CA

Block, Inc.Bay Area, CA, United States of America
On-site Full-time $170.1K/yr - $283.6K/yr

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Experience Level

Senior

Qualifications

You WillEnhance and extend platforms to boost system reliability. Collaborate on team objectives focused on company-wide reliability. Standardize reliability tools across various platforms and departments. Triage, coordinate, and lead the stabilization of severity 0–1 incidents. Serve as the primary on-call engineer, maintaining structured escalation paths and demonstrating leadership during escalations. Drive platform-wide reliability improvements, shared operational tools, and safety patterns in deployments. Utilize AI systems to enhance signal detection, reduce noise, and accelerate root cause analysis. Design and implement safe deployment methodologies (e.g., progressive delivery, automated rollback, guardrails). You HaveA strong drive to analyze complex systems and take action to resolve issues. Proven technical initiative and leadership in previous projects, particularly those with a backend/platform focus. Familiarity with AI-driven tools for observability, incident analysis, or automation. A natural inclination towards problem-solving and continuous improvement.

About the job

At Block, we are a mosaic of diverse teams united by a common mission of economic empowerment. Our foundational teams, including People, Finance, Counsel, Hardware, Information Security, and Platform Infrastructure Engineering, provide essential support and guidance across the organization. We collaborate across various business groups, transcending time zones and disciplines, to craft inclusive policies, manage finances, offer legal expertise, protect our systems, and nurture innovative initiatives. Every challenge brings forth new opportunities, and we value unique perspectives in tackling them. We invite you to bring yours to Block.

The Role

As a vital member of our Site Reliability Engineering (SRE) team, you will take proactive and reactive measures to enhance the reliability of Block's platform and its critical infrastructure. You will be metrics-driven, systems-oriented, and dedicated to building distributed platforms that facilitate safe and scalable product development.

You will utilize and continuously enhance AI-driven tools and automation to bolster observability, expedite incident detection and response, and minimize operational toil. This will involve applying AI to incident analysis, alert tuning, and operational workflows.

Your responsibilities will also include being part of the primary platform on-call rotation (12 hours per day, one week every few weeks, based on team size), supporting Block's most essential Tier 0 services. In this capacity, you will lead incident command, coordinate mitigation efforts, and ensure effective escalation during high-severity incidents.

About Block, Inc.

Block, Inc. is a global company dedicated to making financial services accessible and equitable for everyone. Our diverse teams are committed to fostering innovation and empowering individuals through our cutting-edge technology.

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