Senior Site-Reliability Engineer

We are seeking an experienced Senior Site-Reliability Engineer to join our infrastructure team. The ideal candidate will be responsible for ensuring the reliability, availability, and performance of our Windows-based production environments. You will bridge development and operations to deliver highly available services while maintaining operational excellence., Design, implement, and maintain scalable infrastructure using Infrastructure as Code (IaC) practices

• Develop and maintain automation scripts using various scripting languages (PowerShell, Python, Ruby, etc) for OS provisioning, configuration management, and operational tasks
• Implement and manage configuration management solutions (Terraform, Puppet, and/or Chef) across hybrid environments
• Monitor system health, performance, and availability using industry-standard tools and practices
• Establish and enforce SLAs, SLOs, and error budgets for production services
• Participate in on-call rotation and respond to incidents with a focus on rapid restoration and root cause analysis
• Collaborate with development teams to improve deployment pipelines and release processes
• Document operational procedures, runbooks, and architectural decisions
• Conduct post-mortem reviews and implement corrective actions to prevent recurrence

• 5+ years of experience in Systems Administration, DevOps, or Site-Reliability Engineering roles
• Strong expertise in Windows Server environments (2016+), including Active Directory, IIS, and MS SQL.
• Strong cloud skills, AWS experience preferred.
• Advanced proficiency in scripting, including module development and integration with REST APIs
• Hands-on experience with configuration management tools:
• Terraform (infrastructure provisioning)
• Puppet or Chef (configuration management)
• Experience with monitoring and observability platforms (e.g., Prometheus, Grafana, Datadog, New Relic)
• Solid understanding of networking concepts (DNS, TCP/IP, Load Balancing, VPN)
• Strong problem-solving skills with the ability to troubleshoot complex issues across multiple technology layers

Desired Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent professional experience)
• Certifications such as AWS Solutions Architect, Microsoft Certifications, or HashiCorp Certified: Terraform Associate
• Experience with containerization technologies (Docker, Kubernetes)
• Familiarity with CI/CD tools (Gitlab Pipelines, Jenkins, GitHub Actions)
• Knowledge of security best practices and compliance frameworks
• Experience with log aggregation and analysis tools (ELK Stack, Splunk)

$105,000.00 vision insurance, paid time off, 401(k), retirement plan, The estimated annual salary range for this position is $105,000.00 - $140,000.00/year. Actual compensation will be determined based on factors such as experience, qualifications, skills, geographic location, contract requirements, and business needs.

Entarian offers a comprehensive benefits package to eligible employees, including medical, dental, and vision insurance; life, AD&D, and disability insurance; paid time off and 11 company holidays; 401(k) retirement plan with company matching; and additional employee benefits and wellness resources. Benefits and compensation are subject to applicable eligibility requirements and the terms of Entarian’s plans and policies.

Formed through the strategic union of Sev1Tech and ERT, Entarian is a premier provider of mission-critical engineering and technology solutions. Built on a legacy of excellence dating back to 1993, Entarian represents the evolution of a fully diversified engineering and federal technology leader.

From deep space to defense and civilian missions, Entarian delivers secure, mission-aligned digital solutions that strengthen national resilience and operational effectiveness. We don’t just support modernization; we define it.