System Administrator Jobs in San Diego, CA
System Administrator jobs in San Diego are in steady demand, concentrated in Sorrento Valley, Kearny Mesa, and the UTC corridor across defense contracting, biotech, cybersecurity, and managed IT services. Employers hiring right now include Saalex, Leidos, and Lyntris. See the openings below and apply to the ones that match your experience.
Find System Administrator JobsOverview
Showing 5 of 11+ System Administrator jobs
Junior System Administrator
Location: Hybrid - San Diego, CA
Mutual of Omaha is a Fortune 300 Company. Mutual of Omaha Mortgage is inspired by hometown values and a commitment to being responsible and caring for each other. We exist for the benefit of our customers and employees.
Mutual of Omaha Mortgage is a full service lending company offering both Forward and Reverse Mortgage products including a complete line of residential mortgage, refinancing, specialty, and HECM loans. We employ a knowledgeable staff of experienced Loan Officers with an operations team that is second to none. If you are interested in joining a team that promotes from within and works together toward a common goal of helping customers with their mortgage needs, please review and apply for our opening below!
Position Overview
The Junior System Administrator is an early-career systems administration role for an experienced IT support professional. This role provides day-to-day administration and support for Microsoft 365, Microsoft Entra ID, Microsoft Intune, SaaS applications, and endpoint devices. The role serves as a point of escalation for Tier 1 and Tier 2 support, takes ownership of assigned issues and administration responsibilities, and mentors lower-level team members. The Junior System Administrator works with the Senior System Administrator and management team on complex issues. Azure and Azure Virtual Desktop experience is a plus but not required. The ideal candidate is service-oriented, detail-focused, accountable, and eager to grow as a systems administrator.
Key Functions
Microsoft 365, Entra ID & Intune Support
- Serve as the point of escalation for Tier 1 and Tier 2 support issues involving M365, Entra ID, Intune, endpoints, and SaaS applications.
- Provide day-to-day support for Microsoft 365 services including Exchange Online, SharePoint Online, Teams, OneDrive, and related user issues.
- Support Microsoft Entra ID user and group administration, access requests, directory roles, and joiner/mover/leaver activities.
- Assist with MFA, Conditional Access, and identity security support in accordance with established organizational standards.
- Support Microsoft Intune device enrollment, compliance policies, configuration profiles, and application deployment for Windows and Mac endpoints.
- Assist with basic Azure administration and Azure Virtual Desktop support as assigned; prior experience is a plus.
SaaS Application Management & SSO
- Assist with SaaS application onboarding and offboarding, including SSO and Entra enterprise application support.
- Maintain the organization’s enterprise application catalog; ensure SSO coverage, MFA enforcement, and appropriate access scoping across the SaaS portfolio.
- Manage provisioning and deprovisioning integrations (SCIM or manual) to ensure timely, accurate access changes aligned with the joiner/mover/leaver process.
- Evaluate and onboard new SaaS applications in coordination with the IS team and business stakeholders, including security posture review and integration planning.
- Maintain documentation for all SSO configurations, app registrations, and provisioning workflows.
Networking (Foundational)
- Maintain working knowledge of core networking concepts: TCP/IP, DNS, DHCP, VPN, and firewall fundamentals as they apply to cloud-connected environments.
- Support network-related troubleshooting for cloud services, SaaS connectivity, and remote access scenarios.
- Coordinate with network vendors on connectivity issues that affect cloud or SaaS service availability.
- Work closely with IS team members on cross-functional initiatives including security projects, system migrations, and platform rollouts.
- Participate in IS team planning, change advisory processes, and knowledge-sharing sessions.
- Maintain and contribute to the team knowledge base: runbooks, configuration documentation, and onboarding/offboarding procedures.
- Support audit and compliance requests related to access controls, licensing, and system configurations.
Qualifications
Required
- Bachelor’s degree, technical training, or equivalent hands-on experience in information technology.
- 2-4 years of professional experience in IT support, desktop support, or systems administration, with demonstrated progression in responsibility.
- Professional experience supporting Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive), Microsoft Intune, and Microsoft Entra ID (Azure AD) is required.
- Basic understanding of SSO, MFA, and identity concepts; experience with Entra enterprise applications is a plus.
- Basic awareness of endpoint and email security concepts; Microsoft Defender experience is a plus.
- Basic understanding of identity and access management, least privilege, and account lifecycle management.
- Basic networking knowledge: DNS, DHCP, TCP/IP, VPN, and firewall concepts.
- Strong documentation habits; ability to produce clear runbooks, configuration guides, and change records.
- Ability to take ownership of assigned work, work independently, and collaborate with the Senior System Administrator and management on complex issues.
- Willingness to mentor lower-level technology staff and continuously develop systems administration skills.
Preferred
- Microsoft fundamentals or role-based certifications, such as MS-900, MD-102, or AZ-900.
- Experience with SSO and SCIM-based provisioning and app lifecycle automation.
- Familiarity with PowerShell scripting for M365, Entra ID, and Intune automation.
- Exposure to Azure and Azure Virtual Desktop.
The salary range for this position is $60,000-$80,000 annually.
Mutual of Omaha Mortgage is an Equal Opportunity Employer, and we encourage diverse, talented, qualified applicants to apply. We offer an extensive compensation package. Benefits include:
- Vacation — Vacation hours accrue on a per pay period basis. Balance maximums are based on years of service.
- Paid Sick Time — 40 hours of paid sick time after 90 days of employment. State sick time requirements will be added as needed.
- 9 Paid Holidays + 1 Cultural Celebration Day (Floating Holiday)
- Multiple PPO Medical Plans, as well as HDHP eligible plan.
- Dental Coverage
- Vision Coverage
- Company Paid Life Insurance
- 401K with a generous employer match
- Additional Benefits including – Optional Life, FSA, Pet Insurance etc.
- Free Legal Services
- Employee Loan Program
f3cor46l99
Junior System Administrator
Location: Hybrid - San Diego, CA
Mutual of Omaha is a Fortune 300 Company. Mutual of Omaha Mortgage is inspired by hometown values and a commitment to being responsible and caring for each other. We exist for the benefit of our customers and employees.
Mutual of Omaha Mortgage is a full service lending company offering both Forward and Reverse Mortgage products including a complete line of residential mortgage, refinancing, specialty, and HECM loans. We employ a knowledgeable staff of experienced Loan Officers with an operations team that is second to none. If you are interested in joining a team that promotes from within and works together toward a common goal of helping customers with their mortgage needs, please review and apply for our opening below!
Position Overview
The Junior System Administrator is an early-career systems administration role for an experienced IT support professional. This role provides day-to-day administration and support for Microsoft 365, Microsoft Entra ID, Microsoft Intune, SaaS applications, and endpoint devices. The role serves as a point of escalation for Tier 1 and Tier 2 support, takes ownership of assigned issues and administration responsibilities, and mentors lower-level team members. The Junior System Administrator works with the Senior System Administrator and management team on complex issues. Azure and Azure Virtual Desktop experience is a plus but not required. The ideal candidate is service-oriented, detail-focused, accountable, and eager to grow as a systems administrator.
Key Functions
Microsoft 365, Entra ID & Intune Support
- Serve as the point of escalation for Tier 1 and Tier 2 support issues involving M365, Entra ID, Intune, endpoints, and SaaS applications.
- Provide day-to-day support for Microsoft 365 services including Exchange Online, SharePoint Online, Teams, OneDrive, and related user issues.
- Support Microsoft Entra ID user and group administration, access requests, directory roles, and joiner/mover/leaver activities.
- Assist with MFA, Conditional Access, and identity security support in accordance with established organizational standards.
- Support Microsoft Intune device enrollment, compliance policies, configuration profiles, and application deployment for Windows and Mac endpoints.
- Assist with basic Azure administration and Azure Virtual Desktop support as assigned; prior experience is a plus.
SaaS Application Management & SSO
- Assist with SaaS application onboarding and offboarding, including SSO and Entra enterprise application support.
- Maintain the organization’s enterprise application catalog; ensure SSO coverage, MFA enforcement, and appropriate access scoping across the SaaS portfolio.
- Manage provisioning and deprovisioning integrations (SCIM or manual) to ensure timely, accurate access changes aligned with the joiner/mover/leaver process.
- Evaluate and onboard new SaaS applications in coordination with the IS team and business stakeholders, including security posture review and integration planning.
- Maintain documentation for all SSO configurations, app registrations, and provisioning workflows.
Networking (Foundational)
- Maintain working knowledge of core networking concepts: TCP/IP, DNS, DHCP, VPN, and firewall fundamentals as they apply to cloud-connected environments.
- Support network-related troubleshooting for cloud services, SaaS connectivity, and remote access scenarios.
- Coordinate with network vendors on connectivity issues that affect cloud or SaaS service availability.
- Work closely with IS team members on cross-functional initiatives including security projects, system migrations, and platform rollouts.
- Participate in IS team planning, change advisory processes, and knowledge-sharing sessions.
- Maintain and contribute to the team knowledge base: runbooks, configuration documentation, and onboarding/offboarding procedures.
- Support audit and compliance requests related to access controls, licensing, and system configurations.
Qualifications
Required
- Bachelor’s degree, technical training, or equivalent hands-on experience in information technology.
- 2-4 years of professional experience in IT support, desktop support, or systems administration, with demonstrated progression in responsibility.
- Professional experience supporting Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive), Microsoft Intune, and Microsoft Entra ID (Azure AD) is required.
- Basic understanding of SSO, MFA, and identity concepts; experience with Entra enterprise applications is a plus.
- Basic awareness of endpoint and email security concepts; Microsoft Defender experience is a plus.
- Basic understanding of identity and access management, least privilege, and account lifecycle management.
- Basic networking knowledge: DNS, DHCP, TCP/IP, VPN, and firewall concepts.
- Strong documentation habits; ability to produce clear runbooks, configuration guides, and change records.
- Ability to take ownership of assigned work, work independently, and collaborate with the Senior System Administrator and management on complex issues.
- Willingness to mentor lower-level technology staff and continuously develop systems administration skills.
Preferred
- Microsoft fundamentals or role-based certifications, such as MS-900, MD-102, or AZ-900.
- Experience with SSO and SCIM-based provisioning and app lifecycle automation.
- Familiarity with PowerShell scripting for M365, Entra ID, and Intune automation.
- Exposure to Azure and Azure Virtual Desktop.
The salary range for this position is $60,000-$80,000 annually.
Mutual of Omaha Mortgage is an Equal Opportunity Employer, and we encourage diverse, talented, qualified applicants to apply. We offer an extensive compensation package. Benefits include:
- Vacation — Vacation hours accrue on a per pay period basis. Balance maximums are based on years of service.
- Paid Sick Time — 40 hours of paid sick time after 90 days of employment. State sick time requirements will be added as needed.
- 9 Paid Holidays + 1 Cultural Celebration Day (Floating Holiday)
- Multiple PPO Medical Plans, as well as HDHP eligible plan.
- Dental Coverage
- Vision Coverage
- Company Paid Life Insurance
- 401K with a generous employer match
- Additional Benefits including – Optional Life, FSA, Pet Insurance etc.
- Free Legal Services
- Employee Loan Program
f3cor46l99
See All 11 System Administrator Jobs in San Diego
Find roles in San Diego that match your experience and apply in just a few clicks.
Find System Administrator JobsSystem Administrator Job Market in San Diego
Who's Hiring
System Administrator Jobs in San Diego: Frequently Asked Questions
How do I get a system administrator job in San Diego?
Start by targeting San Diego's strongest hiring sectors: defense contractors in Kearny Mesa and Sorrento Valley, biotech and life sciences firms in Torrey Pines, and managed service providers citywide. Experience with Windows Server, Active Directory, and network administration travels well here. Candidates who also hold certifications like CompTIA Security+ or Microsoft MCSA stand out in a market where defense and healthcare clients require demonstrated security competency.
Which companies hire system administrators in San Diego?
Employers hiring system administrators in San Diego right now include Saalex, Leidos, and Lyntris, based on current listings on Migrate Mate as of November 2026. San Diego's employer mix leans heavily toward defense primes, biotech firms, and regional managed service providers, many of which maintain dedicated IT infrastructure teams with ongoing system administrator needs.
Are there remote system administrator jobs in San Diego?
Yes, though system administrator roles are less remote-friendly than purely analytical positions because hands-on server, network, and hardware support often requires on-site presence. About 67% of system administrator openings tied to San Diego are remote or hybrid as of November 2026, with cloud administration, monitoring, and helpdesk escalation tasks most commonly performed off-site.
How can I get a system administrator job in San Diego with little or no experience?
The most realistic entry path in San Diego is through a helpdesk or IT support role at a managed service provider or a mid-size biotech company, both of which hire entry-level candidates regularly. San Diego's community colleges and UCSD Extension offer IT programs that carry weight with local employers. Moving from tier-one support into junior sysadmin work at a smaller defense subcontractor or startup in the Miramar or Kearny Mesa corridor is a common local progression.
Related Jobs in California
See All 11 System Administrator Jobs in San Diego
Find roles in San Diego that match your experience and apply in just a few clicks.
Find System Administrator Jobs