Senior Site Reliability Engineer
Job description
We are looking for an experienced Senior Site Reliability Engineer to join our team and drive the reliability and functionality of our critical infrastructure and applications. In this role, you will be a key contributor, taking ownership of designing and architecting solutions that meet our high reliability standards. Your expertise will be instrumental in ensuring uninterrupted service and optimizing system performance. You will collaborate closely with a diverse team of engineers and play a vital role in the success of our department. Key Responsibilities Design and architect reliable, secure, and maintainable infrastructure and services. Take proactive steps to ensure solutions meet agreed requirements for reliability and functionality. Identify operational risks, dependencies, performance issues, and potential failure points before they affect service. Translate business and application requirements into practical technical solutions. Install, configure, deploy, and validate applications across Windows Server and Linux environments. Perform structured builds and deployments using runbooks, scripts, readiness checks, and post-build validation. Troubleshoot operating system, service, application, installation, patching, permissions, certificate, and connectivity issues. Monitor system performance and implement improvements to availability, reliability, and operational efficiency. Develop and maintain scripts and automation that reduce manual effort and improve consistency. Plan and execute operating system, middleware, and application patching using established change-control and rollback procedures. Lead or support incident investigations, root cause analyses, and corrective actions. Support vulnerability remediation, system hardening, STIG compliance, and other security-driven changes. Maintain accurate runbooks, deployment procedures, troubleshooting guides, and operational records. Provide technical guidance and mentorship to junior engineers. Communicate status, risks, blockers, and escalation details clearly to stakeholders. Core Qualifications Senior-level experience in site reliability engineering, systems engineering, infrastructure operations, application hosting, or production support. Hands-on administration of Windows Server and/or Linux systems. Experience installing, configuring, validating, and troubleshooting applications in deployed environments. Experience performing manual or semi-automated builds and deployments using runbooks and scripts. Strong troubleshooting skills across operating systems, services, applications, logs, permissions, and configurations. Working experience with one or more scripting or automation tools, including PowerShell, Bash, Python, Ansible, or Chef. Experience applying operating system, middleware, and application patches and resolving patch-related failures. Understanding of maintenance windows, change control, rollback planning, and post-change validation. Familiarity with Ora*** Cloud Infrastructure or another major cloud platform, including compute, storage, networking, identity, and provisioning concepts. Working knowledge of DNS, firewalls, routing, load balancers, ports, and certificates, with the ability to use standard connectivity-diagnostic tools. Familiarity with vulnerability remediation, system hardening, STIGs, or compliance-driven configuration. Strong documentation skills and experience working in ticketing, incident-management, or change-management systems. Clear written and verbal communication skills with the ability to work across technical and client-facing teams. Preferred Qualifications Experience supporting federal clients, government-hosted systems, or other regulated environments. Knowledge of cybersecurity workflows, STIG implementation, or federal compliance requirements. Experience with Citrix technologies. Legacy infrastructure or application-support experience. Millennium or Cerner application knowledge. Experience with infrastructure-as-code or configuration-management tools. Production support, incident response, or SRE operational experience. Knowledge of monitoring, alerting, centralized logging, observability, and reliability practices.