Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Sr. Systems Administrator

$110k - $130k

Applications International Corporation

We are a dynamic SaaS company building innovative software solutions that make a difference in the Environmental Health Risk and Safety industry. Our collaborative team is passionate about technology and committed to excellence. We are looking for a talented and skilled Senior Systems Administrator to join our team in San Diego, CA and help drive our technical vision forward.

THIS IS AN ON-SITE POSITION IN SAN DIEGO, CA 92127.

Important Note: This is a full-time, on-site with benefits role in San Diego, CA. We are only considering local candidates at this time. Relocation assistance is not available. Competitive Salary Range: $110,000-$130,000 per year DOE The Role We are looking for a Senior Systems Administrator who will own the design, implementation, and reliability of an organization's core server and cloud infrastructure. The role will handle the most complex technical work in the operations team, mentor junior administrators, lead infrastructure projects, and serve as the senior escalation contact for critical system outages. It bridges individual technical contribution and team leadership. Duties and Responsibilities Architect, implement, and maintain our hybrid infrastructure (on-premises servers and Azure cloud) supporting business-critical SaaS applications Lead infrastructure projects end-to-end: requirements gathering, design documentation, implementation, testing, and transition to operations Serve as the primary escalation contact for complex incidents involving servers, storage, identity, and cloud components Build and maintain automation using PowerShell and infrastructure-as-code tools (Terraform, Ansible) to reduce manual overhead Manage our identity environment: Active Directory, Azure AD / Entra ID, Group Policy, and conditional access policies Maintain infrastructure documentation: architecture diagrams, runbooks, change history, and disaster recovery procedures Lead DR planning and testing: validate RTO/RPO targets, test backup systems, and run periodic tabletop exercises Participate in security reviews, vulnerability management, and risk assessments Pitch in across IT as needed as this is a small team and everyone contributes Other duties as assigned. The Ideal Candidate Education 5–10 years of progressive systems administration experience, with at least 3 to 4 years in a role with genuine technical ownership Track record of leading or substantially contributing to infrastructure projects and not just executing tasks Experience with disaster recovery planning, testing, and documentation Bachelor's degree in Computer Science, Information Systems, or equivalent experience accepted Core Technical Skills Virtualization: VMware vSphere/vCenter or Hyper-V in a production environment Identity: Active Directory forest management, Group Policy, PKI fundamentals Automation: PowerShell scripting at a production level; Terraform or Ansible experience a strong plus Monitoring: experience configuring and tuning at least one platform (Azure Monitor, Datadog, PRTG, or similar) Technical Preferences Microsoft certifications: AZ-104 (Azure Administrator) or AZ-305 (Azure Solutions Architect) — valued but not a gate Enterprise storage experience (NetApp, Dell EMC, Pure Storage, or similar) Exposure to security frameworks or compliance programs (SOC 2, HIPAA, NIST) Experience in a SaaS or software product environment Competitive Salary and Benefits Package Competitive salary range: $110,000-$130,000 per year DOE 401K Retirement with a generous 6% employer match – 100% vested immediately Medical Coverage (HMO & PPO options) –100% paid by employer for employee and their dependents Employer-paid life insurance Dental and Vision coverage Vacation Time Off Paid Holidays Wellness Program including weekly chair massage and in-office gym Company-provided daily office snacks Dog-friendly office Work Schedule & Location Monday to Friday, 8 AM to 5 PM; occasional weekends depending on business needs Physical Requirements The physical demands are representative of those that must be met by an employee to successfully perform the essential functions of this job with or without reasonable accommodation. This position primarily involves computer work in an office environment and may rarely require lifting/moving items up to 50 pounds. To Apply If you're excited about leading technical innovation and building great software with a talented team, we'd love to hear from you! Link: Equal Opportunity Employer We are an Equal Opportunity Employer and value diversity at our company. The statements above is intended to describe the general content of and requirements for the performance of this job. It is not to be construed as an exhaustive statement of duties, responsibilities or physical requirements. Nothing in this job description restricts management’s right to assign or reassign duties and responsibilities to this job at any time. The physical demands are representative of those that must be met by an employee to successfully perform the essential functions of this job with or without reasonable accommodation. #J-18808-Ljbffr Applications International Corporation

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Sr. Systems Administrator in San Diego, CA vacancy
  • A leading research institution in California seeks a technical systems administration expert for the Sherlock Division. The successful candidate will manage enterprise server and storage systems, working with federal and state agencies. Responsibilities include recommending... 
    Senior

    Military, Veterans and Diverse Job Seekers

    San Diego, CA
    3 days ago
  •  ...skills, superb organizational abilities, and a desire to be great at what you do? Security on Demand is looking for a Sr. Systems Administrator. In this role, you will be a key contributor as you work with various teams in a DevOps environment where you can... 
    Senior
    Casual work
    Flexible hours

    Security On-Demand

    San Diego, CA
    22 days ago
  • $110k - $130k

     ...offer relocation assistance. Competitive Salary Range: $110,000-$130,000 per year DOE The Role We are looking for a Senior Systems Administrator who will own the design, implementation, and reliability of an organization's core server and cloud infrastructure. The role... 
    Senior
    Work experience placement
    Work at office
    Immediate start
    Relocation package
    Monday to Friday

    Applications International Corporation

    San Diego, CA
    2 days ago
  • $95k - $115k

    A leading aerospace firm in San Diego is seeking a Senior Systems Administrator to maintain and secure their information technology infrastructure. The ideal candidate will have over 5 years of experience in information systems, including strong knowledge of Microsoft environments... 
    Senior
    Full time

    Pacific Aerospace Consulting

    San Diego, CA
    3 days ago
  • Pmat Inc. is looking for Systems Administrators in San Diego with expertise in Agile Core Services. This role involves integrating, installing, and maintaining ACS within the OPE AWS environment. Candidates should have 5+ years of relevant experience and the ability to... 
    Senior

    PMAT INC

    San Diego, CA
    2 days ago
  • Saalex Corporation seeks a System Administrator IV to support the Navy by administering and securing IT systems across global environments. Candidates should have 8-12 years of experience and a Bachelor’s degree in IT or Engineering. The role involves ensuring compliance... 
    Senior

    Saalex

    San Diego, CA
    2 days ago
  •  ...Tech9 is hiring a Systems Administrator in San Diego, CA, to support the Surface Combat Systems Training Command. This role demands expertise in network administration, cyber security, and system assessments, along with a minimum of four years of system management experience... 
    Senior

    Tech9

    San Diego, CA
    4 hours ago
  • A software solutions company based in the United States is looking for skilled professionals knowledgeable in Unix, Linux, and networking to join its team. Candidates should possess a Master's degree in Computer Science, Telecommunications, or Electrical Engineering. This...
    Senior

    AG Technologies

    San Diego, CA
    21 hours ago
  • $75k - $150k

    A leading IT solutions provider is looking for a System Administrator in San Diego, CA. The ideal candidate will have a Bachelor's degree in a related field and at least 4 years of system management experience. Responsibilities include managing network infrastructure,... 
    Senior
    Full time

    Yakshna Solutions, Inc.

    San Diego, CA
    4 days ago
  •  ...Linux Administrator Linux/Unix fundamentals, File Systems troubleshooting and Basic understanding of the various tools / services that are available by default with the Operating system Understanding of various distributions nuances (RHEL/Centos/Debian/Ubuntu etc... 
    Senior
    Work at office

    ClifyX

    San Diego, CA
    2 days ago
  • Senior Systems Administrator, Network Location: San Diego, CA, US Job Summary This Senior Systems Administrator develops and maintains systems, tools, and networks in support of pSemi's enterprise environment. As an individual contributor, you will manage the network infrastructure... 
    Senior
    Work at office
    Local area

    Murata Electronics

    San Diego, CA
    2 days ago
  • $120k - $155.4k

    A technology solutions firm seeks a skilled Systems Administrator III in San Diego. This role involves ensuring optimal system performance within the Data Center and Cloud Hosting Services. Candidates should have substantial experience in systems administration, be capable... 
    Senior

    Resource Management Concepts

    San Diego, CA
    3 days ago
  • $100k - $170k

    Saalex Corporation is seeking a System Administrator III in San Diego, CA to support the Navy by managing enterprise IT systems. The role focuses on compliance with DoD cybersecurity requirements and ensures system reliability. Qualified candidates should have 5-7 years... 
    Senior

    Saalex

    San Diego, CA
    2 days ago
  • $95k - $115k

    Senior Systems Administrator - Information Systems PAC is an innovative, privately-owned company delivering high-impact operational capability to our Defense and commercial partners. Our trusted team of engineers, operational experts and technical specialists share a passion... 
    Senior
    Full time
    Local area
    Remote work
    Flexible hours

    Pacific Aerospace Consulting

    San Diego, CA
    4 days ago
  • Applications International Corporation in San Diego seeks a Senior Systems Administrator to design, implement, and maintain hybrid on-premises and Azure infrastructure for our core SaaS environment. You will lead projects, mentor junior admins, act as the senior escalation... 
    Senior
    Relocation package

    Applications International Corporation

    San Diego, CA
    3 days ago
  • Perrygo Consulting Group, LLC is seeking a Network and Computer Systems Administrator to support a Navy customer in San Diego, CA. The role involves installing, configuring, and maintaining LAN/WAN systems, managing user access, monitoring network health, and implementing... 
    Senior
    Flexible hours

    Perrygo Consulting Group, LLC

    San Diego, CA
    2 days ago
  • $97k - $140k

     ...of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software and V-BAT and...  ...Job Description: We are seeking a highly technical Atlassian Administrator (Cloud) with deep expertise in API integrations and automation... 
    Senior
    Full time
    Temporary work
    Part time
    Worldwide

    Shield AI

    San Diego, CA
    11 hours ago
  • $43.03 - $64.54 per hour

     ...passionate about providing compassionate, high-quality care to underserved communities? Join our mission-driven team as a IT Systems Administrator II and help make a meaningful impact in the lives of patients who need it most. Your Role & Impact The IT Systems... 
    Hourly pay
    Work at office
    Local area

    TrueCare™

    La Jolla, CA
    6 days ago
  •  ...Systems Administrator - Multiple Locations Join LCE and become part of a 100% employee‑owned, mission‑focused DoD government contractor, that takes...  ...: 0 - 3 years experience Mid. Level: 3 - 9 years experience Sr. Level: 9 or more years experience Experience with... 
    For contractors
    Work experience placement
    Immediate start
    Relocation
    Flexible hours

    Life Cycle Engineering

    San Diego, CA
    4 days ago
  • $67.6k - $122.2k

     ...Digital Modernization Sector, is seeking a System Administrato r to support various...  ...based systems. Work under guidance of the Sr. ISSE to accomplish time-sensitive projects...  ..., NTFS permissions, and common administration tools. Basic knowledge of Linux‑based distributions... 
    For subcontractor
    Local area
    Immediate start
    Remote work

    Leidos

    San Diego, CA
    4 days ago
  • $70k - $120k

     ...Saalex Corporation is seeking multiple System Administrator II inTidewater, VA and San Diego, CA. Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services, Data... 
    Contract work
    Temporary work
    Local area
    Flexible hours

    Saalex

    San Diego, CA
    4 days ago
  • $105k - $130k

     ...Join Our Team as a Systems Administrator at G2 Software Systems G2 Software Systems, Inc. (G2SS) is seeking a self-directed and motivated Systems Administrator to support G2’s C4ISR Division. This position involves managing and maintaining Windows and Linux workstations... 
    Full time
    Contract work
    Interim role
    Work from home

    G2 Software

    San Diego, CA
    4 days ago
  • $100k - $118k

     ...your skills and experience — talk with your recruiter to learn more. Base pay range $100,000.00/yr - $118,000.00/yr Job Title: Systems Administrator Job Type: Temp-to-Hire; Hybrid (3 days in/2 days remote) Salary Range: $ 100,000 - $118,000 Position Overview: The System... 
    Full time
    Temporary work
    Local area
    Remote work

    Ledgent Technology

    San Diego, CA
    2 days ago
  •  ...Position Description Location Security Clearance Requirements Must be Able to Obtain a Clearance Job Description We are seeking a Systems Administrator to join our team in San Diego, CA (on-site). Responsibilities: Implement and maintain CMMC & NIST 800-171 compliance.... 
    Contract work
    Temporary work
    Local area
    Remote work

    Sellers & Associates, LLC

    San Diego, CA
    3 days ago
  • $76.7k - $129.5k

     ...Position Overview We are searching for an experienced, organized, positive, and self‑motivated Infrastructure Systems Administrator to join our DevSecOps Department within the Joint Mission Integration and Experimentation (JMIE) Division at the Applied Research Laboratory... 
    Full time
    Work experience placement
    Work from home
    Flexible hours

    The Pennsylvania State University

    San Diego, CA
    21 hours ago
  • $107.74k - $120.75k

     ...Job Description Transform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how... 
    Temporary work
    Local area

    Dormont Manufacturing Company

    San Diego, CA
    2 days ago
  • $76.7k - $129.5k

     ...Infrastructure Systems Administrator page is loaded## Infrastructure Systems Administratorlocations: San Diego, CAtime type: Full timeposted on: Posted Todayjob requisition id: REQ\_0000072297# **APPLICATION INSTRUCTIONS:*** ## CURRENT PENN STATE EMPLOYEE (faculty, staff... 
    Full time
    Work experience placement
    Remote work
    Work from home
    Flexible hours

    Penn State University

    San Diego, CA
    2 days ago
  • $60k - $105k

     ...Position Overview Saalex Corporation is seeking multiple System Administrator I positions in Tidewater, VA and San Diego, CA. Saalex Corp. is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and... 
    Contract work
    Temporary work
    Local area
    Flexible hours

    Saalex

    San Diego, CA
    21 hours ago
  • Janux Therapeutics is seeking an Enterprise Applications Administrator in San Diego to support and optimize business and scientific applications...  ...365, Azure Entra ID, and both on-premise and cloud-based systems, ensuring secure access and reliable performance. The role... 
    Senior

    Janux Therapeutics

    San Diego, CA
    3 days ago
  • $120k - $145k

     ...DBA with hands-on Databricks experience to support and optimize enterprise data platforms. This role combines strong database administration expertise with modern data engineering capabilities, focusing on performance, scalability and reliability. The role will be onsite... 
    Senior
    Work at office
    Local area
    Remote work

    Dormont Manufacturing Company

    San Diego, CA
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Sr. Systems Administrator. Be the first to apply!