Senior Systems/ Infrastructure Engineer

Job summary

Amentum is seeking a Senior Systems/Infrastructure Engineer with advanced technical expertise in Microsoft-based infrastructure to support complex enterprise environments.

Qualifications

• Minimum 10+ years of enterprise IT infrastructure experience
• Minimum 7+ years of systems engineering experience in a Microsoft enterprise environment
• Advanced experience supporting large-scale server, workstation, database, messaging, backup, and network environments
• Strong understanding of cybersecurity, system hardening, compliance, audit readiness, and vulnerability management
• Ability to work independently as a senior technical escalation resource
• Strong written and verbal communication skills
• Ability to create professional technical documentation, reports, system diagrams, procedures, and audit artifacts

Responsibilities

• Designing, implementing, maintaining, and supporting enterprise Microsoft infrastructure
• Administering and troubleshooting Active Directory, Exchange, SQL Server, backup platforms, and Cisco network infrastructure
• Creating secure system baseline configurations and maintaining compliance requirements
• Documentation generation of processes and system artifacts for internal and customer review
• Managing enterprise patching and system maintenance activities
• Supporting disaster recovery and business continuity planning
• Mentoring junior administrators and engineers
• Coordinating with cybersecurity, networking, database, server, and management teams
• Ensuring infrastructure remains secure, available, properly documented, and compliant

Skills

Security clearance

Relocation