Senior Systems Engineer

We are seeking an experienced Senior Systems Engineer to design, implement, secure, and sustain complex enterprise IT systems supporting missioncritical operations. This role requires deep technical expertise, strong analytical and architectural skills, and the ability to influence technical direction across the organization. The ideal candidate excels at leading modernization efforts, integrating new capabilities, and mentoring junior engineers while ensuring the reliability, performance, and security of enterprise systems.

Key Responsibilities

Enterprise Architecture & Systems Engineering

Design, deploy, and maintain enterpriseclass systems, infrastructure, and services across onpremises, cloud, and hybrid environments.
• Lead system architecture planning, modernization initiatives, technology evaluations, and migration strategies.
• Integrate new capabilities with existing enterprise systems while ensuring interoperability, scalability, and compliance with organizational standards.

Reliability, Performance & Lifecycle Management

• Ensure system reliability, availability, and performance through proactive monitoring, capacity planning, and lifecycle management.
• Conduct advanced troubleshooting and rootcause analysis for complex, multilayered system issues.
• Support patching, STIG implementation, and audit readiness to maintain security compliance.

Automation & Infrastructure as Code

• Automate system administration, configuration, and deployment tasks using scripting and IaC tools (PowerShell, Bash, Python, Ansible, Terraform, etc.).
• Drive standardization and repeatability across infrastructure operations.

CrossFunctional Collaboration

• Partner with DevOps, Security, Networking, Application Development, and Cyber teams to deliver integrated, missionaligned solutions.
• Review and validate enterprise IT requirements to ensure alignment with security, scalability, and operational needs.

Documentation, Governance & Technical Leadership

• Develop and maintain detailed system documentation, diagrams, and operational procedures.
• Provide technical recommendations, architecture assessments, and design artifacts for enterprise IT initiatives.
• Mentor junior engineers and contribute to technical knowledge sharing across the organization.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or equivalent experience
• 8 years of experience in systems engineering, infrastructure operations, or enterprise IT roles
• DoD 8140 IAT Level II certification (e.g., CompTIA Security+)
• Active TS/SCI clearance

Preferred Qualifications

• Professional certifications (AWS, Azure, RHCE, VMware, CCNA/CCNP, etc.)
• Strong expertise in Windows Server and/or Linux administration
• Solid understanding of networking, storage, virtualization, and security fundamentals
• Experience with cloud platforms (AWS, Azure, or GCP) and hybrid architectures
• Proficiency in scripting and automation (PowerShell, Bash, Python, Ansible, Terraform, etc.)
• Experience with monitoring/observability tools (Splunk, Prometheus, Grafana, ELK, etc.)
• Familiarity with DoD cybersecurity requirements, STIGs, RMF, and zerotrust principles

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.