mcsa jobs in San Diego

This Senior Systems Administrator role supports U.S. National Security by maintaining critical enterprise infrastructure, including Windows servers, domain controllers, cloud resources, and VMware environments.…See more The position requires hands-on administration of secure networks, troubleshooting of cryptographic encryptors (TACLANE/KG-175), performing vulnerability remediation with ACAS/Nessus, and executing rapid incident response for site outages. The role demands an active Top Secret clearance with SCI eligibility, 2+ years of direct systems/network administration experience, and 4+ years managing enterprise Windows infrastructure (AD, DHCP, DNS, GPO, WSUS).

The IT Support Services I role provides frontline technical support to employees and clients, diagnosing and resolving hardware, software, and network issues across desktops, laptops, mobile devices, and printers. Responsibilities include managing user accounts and Active Directory, configuring operating systems and software, troubleshooting network connectivity and VPN access, and escalating complex issues to senior engineers.…See more The position requires 2+ years of hands-on experience with Microsoft Networks, firewalls, TCP/IP, Active Directory, Group Policy, PowerShell, and cloud technology integration, along with strong customer service and documentation skills.

Seeking an experienced Systems Administrator to maintain critical defense enterprise infrastructure in San Diego, including Windows servers, domain controllers, cloud resources, and VMware environments. The role requires dual network and systems administration responsibilities, including TACLANE cryptographic encryptor configuration, troubleshooting site outages, vulnerability remediation (ACAS/Nessus), system hardening, and user account management.…See more Requires 4+ years designing and deploying enterprise Windows infrastructure (AD, DHCP, DNS, GPO, WSUS) and 2+ years in a Network or Systems Administrator role, plus DoD 8570 IAT Level II compliance (Security+ or equivalent).

ManTech seeks a Systems Administrator to maintain critical enterprise infrastructure for national security operations in San Diego, supporting the 0100–0900 morning shift. The role requires administering Windows servers, domain controllers, cloud resources, and VMware environments; configuring and troubleshooting KG-175 (TACLANE) cryptographic network encryptors; performing vulnerability remediation with ACAS/Nessus; and executing rapid incident response and site outage troubleshooting.…See more Candidates must have 4+ years of enterprise Windows infrastructure experience (AD, DHCP, DNS, GPO, WSUS), hands-on TACLANE configuration expertise, and DoD 8570 IAT Level II compliance (Security+ CE or equivalent). The position includes up to 25% travel (CONUS/OCONUS) and requires an active Top Secret clearance with SCI eligibility.

Hands-on technical lead role managing data center operations at Naval Base Point Loma, supporting mission-critical infrastructure. Responsibilities include coordinating rack and stack activities, hardware installations and decommissioning, structured cabling, LAN/WAN/BAN infrastructure projects, and troubleshooting operational issues.…See more Requires active Secret clearance, IAT Level II certification, and 5+ years of data center operations or network infrastructure experience. Preferred experience with Cisco and Juniper equipment, VMware/vSphere, and Windows-based environments.

This role requires a seasoned systems architect with 10+ years of experience to translate U.S. Navy IT requirements and strategic goals into comprehensive communications architectures, design specifications, and technical roadmaps.…See more You will specialize in space/land-based communications, RF spectrum operations, waveform modernization, and Positioning Navigation & Timing (PNT) systems, while guiding cloud migrations, legacy system modernization, and advanced technology integration. The position demands expertise in capability assessments, operational planning, requirements analysis for complex DoN systems, and risk management, along with the ability to mentor junior developers and brief senior military leadership. A TS/SCI clearance and bachelor's degree are required; relevant certifications (MCSA/MCSE, CCNA/CCNP, IAT Level II) and a master's degree are preferred.

Solution Architect with 10+ years of systems engineering experience needed to translate Navy IT requirements into comprehensive communications architectures, design specifications, and modernization strategies. The role involves capability assessments, operational planning, risk management, and mission integration for complex DoN systems, with emphasis on space/land-based communications, RF spectrum operations, and PNT systems.…See more This architect will guide cloud migration, advanced technology integration, and legacy system modernization while mentoring junior developers.

A Tier II support role providing escalated troubleshooting, systems analysis, and pre-sales engineering solutions for client networks and end users. Responsibilities include resolving complex tickets related to Active Directory, line-of-business applications, routing/switching, servers, and hardware (workstations, printers, firewalls, switches); performing planned maintenance; conducting systems analysis to recommend supportable solutions; and delivering exceptional customer service.…See more Requires 3+ years of IT support experience, proficiency with Windows Server, O365, LAN/WAN configuration, and ideally Azure, MCSA/E, or CCNA certification.

The Data Center Lead coordinates daily on-site data center operations for a Navy customer, serving as the primary point of contact between engineering teams and management. Responsibilities include rack and stack installations, hardware deployments, equipment relocations, structured cabling, and supporting network, server, and virtualization infrastructure deployments.…See more The role requires 5+ years of data center operations experience, hands-on knowledge of Cisco and Juniper networking, VMware vSphere, physical servers, LAN/SAN, and security-focused environments. An active DoD IAT Level II Certification and an operating-system certification (MTA, MCSA, MCTS, or equivalent) are required.

ManTech seeks a Systems Administrator to support national security infrastructure in San Diego, maintaining Windows servers, domain controllers, cloud resources, and VMware environments. The role combines network and systems administration, including configuring cryptographic network encryptors (TACLANE), troubleshooting site outages, performing vulnerability remediation with ACAS/Nessus, and managing user accounts.…See more Requires a Bachelor's degree with 4+ years of IT experience (or equivalent), DoD 8570 IAT Level II compliance, and 2+ years as a Network or Systems Administrator with enterprise Windows infrastructure expertise. Travel up to 25% and an active Top Secret/SCI clearance with polygraph eligibility are required.

ManTech seeks a Systems Administrator to maintain critical national security enterprise infrastructure in San Diego, working a 0100–0900 morning shift with on-call support. Responsibilities include administering Windows servers, domain controllers, cloud resources, and VMware environments; configuring and troubleshooting TACLANE cryptographic network encryptors; performing patch management, vulnerability remediation (ACAS/Nessus), and system hardening; and managing user accounts and ticketing incidents.…See more Requires a bachelor's degree with 4+ years of IT experience (or equivalent substitution), DoD 8570 IAT Level II compliance (Security+ CE or equivalent), 4+ years of enterprise Windows infrastructure design/deployment, and hands-on TACLANE encryptor experience. Up to 25% travel (CONUS and OCONUS) is required.

The IT Support Services I associate will provide frontline technical support to employees and clients, diagnosing and resolving hardware, software, and network issues via phone, email, and ticketing systems. Responsibilities include installing and configuring operating systems and software, managing user accounts and Active Directory, troubleshooting network connectivity and VPN access, and escalating complex issues to senior engineers.…See more The role requires 2+ years of hands-on experience with Microsoft Networks, firewalls, TCP/IP, PowerShell, and endpoint security, along with strong communication skills and the ability to work independently under pressure.

The Information Systems Analyst III coordinates the development, testing, implementation, and modification of complex information systems; performs business process analysis and modeling; researches hardware and software solutions to meet requirements; provides technical support to end users; and leads IT activities. The role requires three years of professional-level information systems management experience, including procurement, project management, business process analysis, and technical assistance to users on major systems.…See more Candidates must hold a Bachelor's degree (or equivalent) and have one year of experience at an Analyst II level or higher.