Senior Systems Engineer

Peraton•Washington, DC

54d•$112,000 - $179,000

About The Position

We are seeking an experienced Senior Systems Engineer to design, implement, secure, and sustain complex enterprise IT systems supporting mission‑critical 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.

Requirements

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

Nice To Haves

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 zero‑trust principles

Responsibilities

Design, deploy, and maintain enterprise‑class systems, infrastructure, and services across on‑premises, 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.
Ensure system reliability, availability, and performance through proactive monitoring, capacity planning, and lifecycle management.
Conduct advanced troubleshooting and root‑cause analysis for complex, multi-layered system issues.
Support patching, STIG implementation, and audit readiness to maintain security compliance.
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.
Partner with DevOps, Security, Networking, Application Development, and Cyber teams to deliver integrated, mission-aligned solutions.
Review and validate enterprise IT requirements to ensure alignment with security, scalability, and operational needs.
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.