Senior Site Reliability Engineer

Responsibilities

• Build and extend platforms to improve system reliability
• Standardize reliability tools across multiple platforms and organizations
• Triage, coordinate, and lead stabilization of sev 0–1 incidents
• Serve as primary oncall, maintaining structured escalation paths
• Drive platform-wide reliability improvements and shared operational tooling
• Use AI-driven systems to improve signal detection and accelerate root cause analysis
• Design and implement safe deployment patterns like progressive delivery and automated rollback

Requirements

• 5+ years of software development experience
• Experience running production oncall for high-availability systems
• Strong incident management skills including structured triage and blameless postmortems
• Fluency with CI/CD pipelines and progressive rollout strategies
• Monitoring and observability expertise (uptime, error rates, latency, resource exhaustion)
• Familiarity with AI-driven tooling for observability or automation
• Ability to drive root cause analysis in complex systems

Preferred Qualifications

• Experience with backend or platform-focused projects
• Ability to create evidence-based maturity assessments using data
• Comfort with vendor and dependency management

Benefits

• Healthcare coverage (Medical, Vision, and Dental)
• Health Savings Account and Flexible Spending Account
• Retirement Plans with company match
• Employee Stock Purchase Program
• Wellness programs and monthly wellness allowance
• Paid parental and caregiving leave
• Paid time off and flexible time off
• Learning and Development resources
• Life insurance, AD&D, and disability benefits

About the Company

Block builds simple, powerful tools that make progress towards an economy that’s truly open to all. Our brands include Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto.