active-directory jobs in San Diego

Senior Systems Engineer responsible for designing, implementing, securing, and optimizing enterprise Microsoft 365 and Azure environments for government and commercial clients. You will architect and deploy M365 services (Exchange Online, SharePoint, Teams, Intune, Entra ID) and Azure infrastructure (VMs, networking, storage, AVD, monitoring), lead cloud migrations and hybrid identity configurations, and develop security baselines and Zero Trust policies.…See more The role requires advanced PowerShell scripting, Infrastructure-as-Code practices, troubleshooting complex identity and cloud issues, and mentoring junior engineers while collaborating with security teams and stakeholders.

This role supports cybersecurity engineering and infrastructure security for enterprise, cloud, and classified environments. The engineer will manage vulnerability assessment, system hardening, patching, secure configuration, and DevSecOps pipeline integration across Linux and Windows Server platforms.…See more Responsibilities include compliance support (RMF, ATO, NIST SP 800-53, DISA STIGs), CI/CD security automation, containerized environment hardening, and infrastructure-as-code implementation. Strong technical depth in cloud platforms (AWS/AWS GovCloud), container orchestration, security tooling, and the ability to communicate complex technical and compliance issues to engineering and mission stakeholders are required.

Lead enterprise IT systems engineering for Navy infrastructure modernization, architecting and securing Windows, Linux, and cloud server platforms across Active Directory, hybrid identity, virtualization, and Azure environments. Direct a team of IT systems engineers in deploying, optimizing, and troubleshooting mission-critical infrastructure while serving as on-site technical advisor to government clients on system architecture and modernization strategy.…See more Require 10+ years enterprise Windows Server experience, 3+ years technical leadership, expertise in AD/Entra hybrid identity, enterprise endpoint management (MCM/SCCM), and hyperconverged infrastructure, plus hands-on knowledge of PowerShell automation, Azure, and security hardening.

Lead technical administration of ONI's Microsoft environment, including Microsoft 365, Microsoft Entra ID, SSO, and endpoint management across mixed Windows, macOS, and iOS devices. Own the full IT asset lifecycle from procurement through retirement, manage user identity and access controls with security best practices, and drive IT projects and process improvements.…See more Serve as senior technical escalation point for complex issues, maintain business continuity procedures, and coordinate with vendors and internal stakeholders on security compliance (GDPR, Cyber Essentials, ISO 27001) and incident response.

SAIC seeks an experienced Sr Systems Administrator to manage Windows and Linux servers, Azure cloud services, M365, and on-premises infrastructure for a public sector client. The role requires hands-on administration of IaaS/PaaS services, Active Directory, Exchange, VMware, backup/recovery, and security—with 24/7 on-call rotation support.…See more The ideal candidate will have 5+ years of server administration experience, strong troubleshooting skills, and certifications in Azure or Windows Server administration.

Senior Infrastructure & Security Engineer responsible for administering and securing Microsoft 365, Azure, and Entra ID environments, including identity controls, conditional access, and MFA enforcement. The role encompasses data protection through DLP policies and Microsoft Purview, endpoint security via CrowdStrike, Windows Server and Active Directory infrastructure, virtualization (VMware, Azure), backup/disaster recovery, and establishing governance standards for AI platforms.…See more Requires 7+ years of progressive IT infrastructure and security experience with strong expertise in Microsoft cloud services, identity management, and enterprise networking.

Design, deploy, and maintain enterprise Windows Server infrastructure with expertise in Active Directory, authentication systems (Kerberos, RADIUS, PKI), and DoD-compliant hardening (STIGs, CIS, Zero Trust). Develop Infrastructure-as-Code automation using PowerShell, Python, and Ansible across Windows and Linux environments, manage SCCM/MECM patch deployment and WSUS, and architect virtualized environments on KVM and EC2.…See more Mentor engineering teams on system integration, security, and cross-domain interoperability, and collaborate with cybersecurity, network, and Linux teams to solve complex enterprise deployment challenges.

Lead Information Assurance and security engineering for Navy tactical networks (CANES), managing end-to-end Risk Management Framework (RMF) authorization, hardening virtualized and cloud network stacks, and ensuring compliance across diverse naval environments. Develop and maintain security authorization artifacts (SSP, SAP/SAR, POA&M, ATO packages in eMASS), apply DISA STIGs and vulnerability management tools (ACAS, NESSUS, SCAP), and provide IA guidance for application integration aligned with DoDAF and Net-Ready KPP baselines.…See more Support developmental testing, audit response, and continuous monitoring while coordinating with PEO C4I, NIWC Pacific, and Fleet stakeholders. Mentor junior engineers and champion DevSecOps and STIG automation practices.

The Systems Administrator II maintains and supports IT infrastructure integrity, availability, and performance for a DoD contract environment. Key responsibilities include Active Directory administration (ADUC, DNS, GPO, WSUS), PKI credential management, system maintenance, software/hardware upgrades, troubleshooting, and compliance monitoring via DISA STIGs.…See more The role requires a Bachelor's degree in IT or related field, 3+ years of relevant experience, and an IAT Level II certification (CySA+, Security+, CCNA Security, GICSP, GSEC, or SSCP).

The Senior Systems Administrator designs, implements, and maintains enterprise IT infrastructure across cloud, endpoint, identity, server, and collaboration platforms. Responsibilities include administering Windows, Linux, and macOS systems; managing Active Directory, Azure AD/Entra ID, and endpoint platforms like Intune and JAMF; optimizing system performance and reliability; and developing automation scripts.…See more This role requires 5+ years of enterprise infrastructure experience, advanced knowledge of Microsoft identity and collaboration services, and acts as a technical lead for infrastructure projects while mentoring junior administrators.

This Staff IT Engineer role supports secure enterprise environments serving government missions, with primary responsibility for implementing, administering, and optimizing Microsoft infrastructure technologies including Windows Server, Active Directory, Group Policy, SCCM, DNS, DHCP, file services, and print services. The candidate will provide Tier 2/3 support, troubleshoot complex infrastructure issues, perform system maintenance and patching, manage endpoint compliance, and ensure compliance with federal cybersecurity frameworks (NIST, RMF, CMMC).…See more The role requires at least 3 years of hands-on experience with on-premises Microsoft infrastructure in enterprise environments and an active Top Secret security clearance.

This role provides IT risk management and cybersecurity oversight for a large, multi-location enterprise environment. Key responsibilities include triaging security alerts and IOCs, conducting IT security audits (network, OS, data center), administering Microsoft 365 Defender for Cloud and endpoint protection platforms, managing vulnerability assessments, and assisting with cloud migrations to Azure and Microsoft 365 services.…See more The role requires 5+ years of IT experience in large environments, IT audit experience, Security+ or Cloud+ certification, and hands-on administration of Active Directory, SIEM tools, and service-desk ticketing systems.

SAIC seeks a Cloud DevOps Engineer to design, build, and operate mission-critical cloud infrastructure on AWS and Kubernetes/OpenShift platforms in support of Naval Operational Architecture. The role combines infrastructure-as-code (CloudFormation, YAML), container orchestration, Linux/Windows server administration, networking, scripting (Bash, Python, PowerShell), and cybersecurity hardening (STIGs, ACAS).…See more You will work across cyber, networking, and development teams to deliver resilient, secure, and highly available cloud environments while maintaining compliance and system uptime.

Axos Bank seeks a Systems Engineer to manage and monitor infrastructure and system installations, including configurations, testing, and maintenance. The role requires seven years of progressive experience in VMware (ESXi, vCenter, Horizon VDI), Citrix (Virtual Apps and Desktops, NetScaler ADC), storage systems (HPE Nimble, SAN/Brocade), virtualization platforms (Nutanix AHV, Hyper-V), directory services (Active Directory, DNS, DHCP), and Microsoft Azure administration.…See more Candidates must hold a Bachelor's degree in Electronic Engineering, Computer Science, or related field and demonstrate expertise in designing scalable, highly available virtual environments and managing cloud resources.

Axos Bank seeks a Systems Engineer to manage and monitor infrastructure and system installations, including configurations, testing, and maintenance. The role requires seven years of progressively responsible experience in VMware infrastructure deployment and administration, Horizon VDI, Citrix Virtual Apps and Desktops, Citrix NetScaler, storage systems (HPE Nimble, SAN/Brocade), Ivanti User Virtualization, Active Directory/DNS/DHCP, and Microsoft Azure administration.…See more Candidates must hold a Bachelor's degree in Electronic Engineering, Computer Science, or a related field.

As an IT Support Engineer I, you will implement technical solutions and provide high-quality support for computer hardware, operating systems, and enterprise application software across Amazon's global operations. You will troubleshoot and resolve network, infrastructure, and computing system issues in multi-user, high-availability environments, ensuring production availability.…See more Responsibilities include network engineering, systems administration, managing technical projects, and identifying root causes of operational issues. The role requires hands-on experience with Windows Server, networking protocols, PC repair and deployment, and corporate IT service delivery.

Build and maintain AWS cloud infrastructure (EC2, VPCs, security groups, storage) using Infrastructure as Code with CloudFormation. Operate Kubernetes/OpenShift container platforms and manage application lifecycle.…See more Support web application stacks (React, Node.js, PostgreSQL) and implement authentication via OpenID Connect, SAML, and LDAP/AD. Monitor systems using CloudWatch and distributed tracing tools.

GEM Team seeks a fractional Network & Systems Administrator (1099, 3–4 days/week) to manage network, server, cloud, and security infrastructure for a financial services organization in San Diego. The role involves administering Cisco Catalyst, Meraki SD-WAN, Palo Alto firewalls, Microsoft 365, Entra ID, Active Directory, and Windows Server; troubleshooting across multiple locations; and partnering with IT leadership on infrastructure initiatives.…See more Required: 5+ years of network/systems/infrastructure administration experience, strong hands-on expertise in Cisco networking, Palo Alto firewalls, Microsoft identity and server platforms, and TCP/IP networking fundamentals. Preferred: financial services or regulated-industry experience and familiarity with Check Point Avanan and Arctic Wolf.