Site Reliability Engineer (5009) (US, DC, Tampa, San Antonio) (Secret)

The SMX Space and Intelligence (S&I) Business Unit (BU) is on the ground floor across the future remote sensing ecosystem for all orbital regimes (LEO, MEO, HEO, and GEO). We build, integrate, and operationally support our customer's emerging space-ground systems to include real-time data processing frameworks, sensor data processing, and data visualization. We are teamed with the most passionate companies in industry, dedicated to bringing best-of-breed capabilities to address our customers most pressing needs. We have an immediate opportunity for a Site Reliability Engineer who is excited to apply their talents to our customer's challenging project and one who will thrive in a collaborative environment. The ideal candidate is a recognized professional with hands-on expertise and an excellent understanding of engineering processes supporting large, National Defense, Agile software development programs. Work will be performed in Colorado. Please apply to this role if you have interest in relocating to Colorado. Essential Duties & Responsibilities
Support the availability, reliability, and performance of IaaS services supporting mission systems
Monitor infrastructure health using metrics, logs, and alerts; respond to and resolve incidents
Perform root-cause analysis for infrastructure and service outages; implement corrective and preventative actions Improve system reliability through automation, standardization, and proactive engineering
Support capacity planning, performance analysis, and scaling of infrastructure services
Maintain and enhance monitoring, logging, and alerting solutions
Participate in incident response, on-call rotations (as required), and post-incident reviews
Collaborate with network, systems, platform, and application teams to resolve cross-stack issues
Support infrastructure lifecycle activities including upgrades, patches, and configuration changes
Apply security best practices and support compliance requirements in a regulated environment
Develop and maintain runbooks, procedures, and operational documentation
Contribute to CI/CD and Infrastructure-as-Code workflows supporting IaaS services
Participate in Agile ceremonies and operational planning activities
Perform other duties as assigned Required Skills & Experience
Secret clearance
5+ years of professional experience in systems engineering, SRE, DevOps, or infrastructure operations
Strong experience administering Linux systems
Experience supporting on-prem, cloud, or hybrid infrastructure environments
Hands-on experience with monitoring, logging, and alerting systems
Strong troubleshooting skills across compute, storage, networking, and OS layers
Experience scripting or automating tasks using Bash, Python, or similar languages
Familiarity with Infrastructure as Code concepts and tooling
Strong verbal and written communication skills
Detail-oriented, self-motivated, and able to own issues through resolution
Ability to work on-site at the customer location Desired Skills & Experience
Experience working on an IaaS or platform operations team
Experience with virtualization platforms (e.g., VMware vSphere)
Experience supporting container platforms (Kubernetes, OpenShift)
Experience with cloud environments (AWS, Azure, or GovCloud)
Familiarity with SRE concepts such as SLIs, SLOs, error budgets, and toil reduction
Experience with configuration management or automation tools (Ansible, Terraform)
Experience with CI/CD pipelines (GitLab CI, Jenkins, or similar)
Experience operating systems in government or secure environments
Experience with incident management and operational readiness reviews Application Deadline: June 22, 2026 #CJPost The SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications. At SMX, one of our Core Values is to Invest in Our People so we offer a competitive mix of compensation, learning & development opportunities, and benefits. Some key components of our robust benefits include health insurance, paid leave, and retirement. The proposed salary for this position is:: $123,900 USD - $206,400 USD