Senior Site-Reliability Engineer

Entarian; United States; On-site; USD 105,000 - 140,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Life, AD&D, and disability insurance

Paid time off and 11 company holidays

401(k) retirement plan with company: 1

wellness resources

Job summary

Entarian is seeking an experienced Senior Site-Reliability Engineer to join our infrastructure team. The role focuses on reliability, availability, and performance of Windows-based production environments, bridging development and operations to deliver highly available services.

You will design and maintain scalable IaC, automate provisioning through PowerShell/Python, manage configuration with Terraform, Puppet or Chef, monitor health with Prometheus/Grafana, and participate in on-call

Qualifications

• 5+ years in Systems Administration, DevOps, or SRE roles
• Strong Windows Server expertise including AD, IIS and MS SQL
• Cloud experience with AWS preferred
• Advanced scripting and REST API integration
• Experience with Terraform, Puppet or Chef
• Experience with monitoring/observability platforms (Prometheus, Grafana, Datadog, New Relic)
• Networking fundamentals including DNS, TCP/IP, load balancing, VPN

Responsibilities

• Design, implement, and maintain scalable infrastructure using IaC
• Develop and maintain automation scripts for OS provisioning and config mgmt
• Manage configuration with Terraform, Puppet, or Chef across hybrids
• Monitor health, performance, and availability using standard tools
• Establish SLAs/SLOs and incident response processes
• Participate in on-call rotation and root cause analysis
• Collaborate with development teams to improve pipelines
• Document runbooks and architectural decisions
• Conduct post-mortems and implement corrective actions

Skills

years of experience in SRE/DevOps

Windows Server (2016+)

Active Directory

IIS

MS SQL

AWS

scripting (PowerShell, Python, Ruby)

Terraform

Puppet or Chef

Docker

Kubernetes

Prometheus/ Grafana / Datadog / NewRel

DNS / TCP/IP / Load Balancing

incident response / post-mortems

Education

Bachelor's degree in Computer Science or related field

AWS Solutions Architect or Microsoft Certification

HashiCorp Terraform Associate

Tools

Terraform

Puppet

Chef

Docker

Kubernetes

GitLab / Jenkins / GitHub Actions

ELK / Splunk

Job description

Overview/ Job Responsibilities

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.

Key Responsibilities

• 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

Minimum Qualifications

• 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)

About Us

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.

• 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
• additional employee benefits and wellness resources

Benefits and compensation are subject to applicable eligibility requirements and the terms of Entarian's plans and policies.

About Entarian

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.

Questions and/or Referrals: [e-mail]

Equal Opportunity Employer

Entarian is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, gender identity, sexual orientation, or protected veteran status.

As a covered federal contractor, Entarian is committed to affirmative action and equal employment opportunity for individuals with disabilities under Section 503 of the Rehabilitation Act of 1973 and protected veterans under the Vietnam Era Veterans' Readjustment Assistance Act (VEVRAA).

Entarian is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and employment process.