As a Senior Site Reliability Engineer, you will help design, deploy, maintain, and improve reliable, secure, and scalable infrastructure and services. You’ll proactively identify operational risks and potential failure points, troubleshoot system and application issues, support production environments, and develop automation that improves consistency and reduces manual effort.

You will work across Windows Server and Linux environments and participate in deployments, patching, incident response, root-cause analysis, security remediation, and operational documentation.

Key Responsibilities

• Design and architect reliable, secure, and maintainable infrastructure and services. Take proactive steps to ensure solutions meet defined reliability and functionality requirements. 
• 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 Skills and Qualifications

Windows and Linux System Administration

• Hands-on experience administering Windows Server and/or Linux systems. 
• Ability to access deployed hosts and perform post-deployment configuration and validation. 
• Experience installing, configuring, and validating applications in Windows Server and Linux environments. 
• Ability to troubleshoot operating-system-level, service-level, and application-level issues. 
• Working knowledge of system services, permissions, configuration files, logs, and resource utilization. 

Manual Build and Deployment Experience

• Experience performing structured build and deployment tasks using runbooks, deployment guides, and technical procedures. 
• Ability to execute scripts, validate outputs, and correct common build or configuration issues. 
• Familiarity with build handoffs, environment-readiness checks, deployment validation, and post-build verification. 
• Ability to follow detailed implementation steps while identifying and documenting exceptions or deviations. 

Troubleshooting and Operational Support

• Ability to investigate failed services, installation errors, patching failures, application startup problems, permissions issues, and connectivity failures. 
• Experience reviewing logs, event viewers, service status, configuration files, ports, certificates, and permissions. 
• Strong analytical and problem-solving skills, with the ability to isolate root causes and recommend practical solutions. 
• Ability to escalate issues clearly by documenting symptoms, troubleshooting steps, findings, impact, and recommended actions. 
• Experience supporting production or other business-critical environments. 

Scripting and Automation

Hands-on experience with:

• PowerShell 
• Bash 
• Python 
• Ansible 
• Chef 

Candidates should be able to run, modify, validate, and troubleshoot existing scripts and understand basic automation concepts.

Patching and Software Maintenance

• Experience applying operating system, middleware, and application patches. 
• Ability to follow patching procedures, validate successful completion, and troubleshoot failures. 
• Understanding of maintenance windows, change control, rollback planning, and post-change validation. 

Cloud and OCI Familiarity

• Familiarity with Oracle Cloud Infrastructure or another major cloud platform. 
• Understanding of cloud compute, storage, networking, identity, and environment-provisioning concepts. 
• Experience supporting applications in cloud-hosted or hybrid environments. 

Network Troubleshooting

• Working knowledge of DNS, firewalls, routing, load balancers, ports, and certificates. 
• Ability to identify basic connectivity issues between hosts, applications, and services. 
• Familiarity with standard network diagnostic tools. 

Cybersecurity and Compliance

• Familiarity with STIGs, vulnerability remediation, system hardening, and compliance-driven configuration. 
• Ability to support cybersecurity remediation activities without disrupting application functionality. 
• Experience in federal, government-hosted, or regulated environments is highly valued. 

Documentation and Communication

• Ability to follow detailed technical instructions, runbooks, and change procedures. 
• Strong attention to detail when documenting completed work, issues, deviations, and validation results. 
• Experience working in ticketing, incident-management, or change-management systems. 
• Clear written and verbal communication skills for status updates, handoffs, and escalations. 
• Ability to collaborate effectively with engineering, operations, cybersecurity, networking, and client-facing teams. 

Preferred Qualifications

• Experience supporting federal clients or government-hosted environments.
• Must be able to obtain and maintain US Federal Security Clearance.  
• 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.