Sr. Systems Engineer

Amentum•Columbia, MD

13d•Onsite

About The Position

Come be part of a dynamic program that delivers enterprise infrastructure, systems engineering, and operational support across multiple mission-critical network environments. Our team designs, implements, and sustains modern technology solutions supporting real-world customer operations. We foster a highly collaborative and technical culture that values innovation, continuous learning, and professional growth. Team members are encouraged to expand their expertise through training opportunities, cross-functional collaboration, and hands-on experience with a wide range of technologies supporting complex operational environments.

Requirements

8+ years of experience designing, implementing, and supporting enterprise infrastructure environments including compute, storage, networking, virtualization, and identity management services.
Strong experience with Cisco UCS administration, lifecycle management, firmware maintenance, capacity planning, and operational support.
Experience administering enterprise virtualization platforms such as VMware vSphere, ESXi, vCenter, Hyper-V, Nutanix, or equivalent technologies.
Strong understanding of enterprise networking concepts including LAN/WAN technologies, routing, switching, network segmentation, and security best practices.
Experience implementing and supporting infrastructure solutions within complex enterprise environments.
Hands-on experience administering Microsoft Active Directory, Group Policy, DNS, DHCP, file services, and authentication technologies.
Experience managing enterprise storage platforms, backup solutions, disaster recovery capabilities, and data protection strategies.
Strong knowledge of Windows Server operating systems including patch management, system hardening, performance tuning, and lifecycle management.
Experience supporting infrastructure maintenance activities including upgrades, migrations, patching, change management, and disaster recovery exercises.
Ability to lead technical tasks and infrastructure projects while coordinating with engineering teams, stakeholders, and vendors.
Strong troubleshooting and analytical skills with the ability to identify root causes and resolve complex technical issues.
Knowledge of cybersecurity principles including vulnerability remediation, access controls, compliance requirements, and secure infrastructure practices.
Experience with infrastructure automation and scripting using PowerShell, Python, Ansible, or similar technologies.
Experience developing and maintaining technical documentation, procedures, diagrams, and operational guides.
Excellent verbal and written communication skills with the ability to collaborate effectively across technical and non-technical teams.
TS / SCI Security Clearance Required
High School Diploma or equivalent
One or more of the following IAT Certs: CISM, CISSP, or equivalent senior-level baseline certification
Required vendor certification in one or more relevant technologies (e.g., Microsoft, VMware, Cisco, NetApp, Pure Storage, HP, Dell, Linux+, Red Hat, HBSS, ACAS). Candidates without an active certification must obtain at least one within 6 months of hire

Nice To Haves

Bachelor's Degree in Information Technology, Computer Science, Engineering, or related field
Experience supporting Federal Government, DoD, or regulated environments.
Experience with NIST RMF, NIST 800-53, STIGs, CIS Benchmarks, or equivalent compliance frameworks.
Experience with enterprise backup, disaster recovery, and business continuity solutions.
Prior Military experience

Responsibilities

Design, implement, administer, and maintain enterprise infrastructure systems including Cisco UCS, Microsoft Active Directory, enterprise storage platforms, Windows Server environments, and network infrastructure.
Support the deployment and administration of network solutions including routing, switching, segmentation, and secure communications across multiple classified environments.
Assist with the development and maintenance of infrastructure standards, engineering best practices, and system documentation.
Participate in infrastructure modernization efforts, technology refresh projects, migrations, and lifecycle management activities.
Administer enterprise storage platforms and support backup, disaster recovery, replication, and capacity planning initiatives.
Manage enterprise identity and authentication services including Active Directory, Group Policy, DNS, DHCP, and file services.
Plan and execute system upgrades, firmware updates, patching activities, maintenance actions, and approved changes within production environments.
Troubleshoot complex infrastructure issues, perform root cause analysis, and implement corrective actions to improve system availability and performance.
Work closely with cybersecurity personnel to support vulnerability remediation, STIG implementation, system hardening, and compliance requirements.
Evaluate technologies, tools, and system enhancements and provide recommendations for operational improvements.
Develop and maintain technical documentation including procedures, diagrams, system configurations, and operational runbooks.
Provide technical guidance and mentoring to junior and mid-level engineers.
Support planned after-hours maintenance windows and respond to operational incidents as required to maintain system availability.