Site Reliability Engineer - CTJ - Poly

We are seeking a  Senior Site Reliability Engineer  to lead a team that builds and operates Microsoft CISO security engineering services in  highly regulated environments , including  U.S. Government Cloud  deployments. In this space, success requires both operational rigor and  strong software engineering fundamentals, m aintainable code, extendable design, robust telemetry, and disciplined lifecycle practices that make reliability a built-in feature.     This role is rooted in software engineering as a reliability lever. You will work with teams that deliver production code, automation, and self-healing capabilities, and partner with feature engineering teams to bake in reliability, diagnosability, security, and compliance from design through operations. You will help operate and evolve large-scale enterprise applications, and multi-petabyte data platforms where availability, resilience, and uptime are mission critical. You will amplify impact by developing engineers, setting up reliability strategies, and influencing how services are built and run across organizational boundaries.

Responsibilities:   Write secure, high-quality code that is maintainable, scalable, and performant.   Architect, implement, and optimize hybrid and cloud infrastructure using Infrastructure as Code (e.g., Containers, Bicep, Terraform, AKS etc.) to improve availability, scale, security, and operational efficiency.   Design and implement data governance, storage, backup, and disaster recovery for a multi-petabyte Azure environment, ensuring integrity, security, and performance.   Build and operate large-scale data pipelines and data transformations to support analytics, governance, and operational needs.   Evaluate emerging engineering tools and practices and incorporate them into the roadmap to continuously improve efficiency, reliability, and scale.   Deliver automation to improve service health, manageability, reliability, telemetry, and alerting, with a focus on resiliency.   Create and maintain clear technical documentation and design specifications aligned with best practices.   Partner with engineering, project management, and operations to evolve services and optimize infrastructure in support of organizational goals.   Participate in an on-call rotation to operate live services; troubleshoot and mitigate complex issues, escalate as needed, and write post-incident reviews to share learnings.   Identify opportunities for automation using scripts, pipelines, policy ‑ driven guardrails, or AI ‑ enabled tooling to reduce manual toil and increase engineering productivity.

Required/minimum qualifications: Master's Degree in Computer Science, Information Technology, or related field AND 2+ years technical experience in software engineering, network engineering, or systems administration OR Bachelor's Degree in Computer Science, Information Technology, or related field AND 4+ years technical experience in software engineering, network engineering, or systems administration OR equivalent experience.   Other requirements: Security Clearance Requirements: Candidates must be able to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:   The successful candidate must have an active U.S. Government Top Secret Clearance with access to Sensitive Compartmented Information (SCI) based on a Single Scope Background Investigation (SSBI) with Polygraph. Ability to meet Microsoft, customer and/or government security screening requirements are required pre-offer and post-hire for this role. Failure to maintain or obtain the appropriate U.S. Government clearance and/or customer screening requirements may result in employment action up to and including termination.   Clearance Verification : This