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Sr. Systems Administrator


Job Location:

Los Angeles, CA - USA

Yearly Salary: $ 84558 - 131340
Posted: 17 June 2026 (30+ days ago)
Application Deadline: 14 September 2026
Vacancies: 1 Vacancy

Job Summary

Job Summary

The Los Angeles Homeless Services Authority (LAHSA) seeks motivated professionals who want to use their talents and skills to make a difference. Our staff are adaptive problem solvers and passionate about enriching peoples lives. If you are mission-driven dedicated to superior service and support and can diligently work independently and in a collaborative environment join our team. LAHSA is leading the fight to end homelessness in LA County. Here not only would your workimpactthe community but we also offer a comprehensive and competitive benefits package.


Created in 1993 LAHSA is a joint powers authority of the City and County of Los Angeles. As the agency that leads HUDs required Continuum of Care (CoC) functions in the Los Angeles CoC weare responsible forcoordinating the regions joint application for federal funding as well as supporting a regional approach to data planning and strategy across most of LA County. LAHSA also administers funding from federal state and local governments to service providers who work every day to solve homelessness in our community.


LAHSAisseekingan experienced self-directed and highly analyticalSenior Systems Administratorto manageoptimize andmaintainour enterprise IT infrastructure. Serving an expanding environment of 500700 users 25 servers and approximately 250 active workstations this role ensures the reliability security and performance of allserver network cloud and endpoint systems.


As a senior-level professional you will perform the most complexsystemssoftware and hardware engineering lead critical infrastructure projects and apply sound supervisory principles to mentor junior IT staff and oversee temporary support personnel. This role bridges advanced systems administration with strategic systems analysis helping to shape public-sector technology delivery and provide data-driven solutions for organizational decision-making.


The functions listed below are intended to describe the general nature and level of work being performed and are not to be interpreted as an exhaustive list of responsibilities.
Essential Job Functions

Infrastructure & Systems Administration

  • Server & Cloud Management:Administer andmaintainon-premises and cloud-based servers (Windows Server 2012/2016/current Linux) in a hybrid environment. Build configure andmaintainweb virtual (VMware vSphere / Hyper-V) and client-server environments.
  • Directory & Identity Services:Manage Active Directory Azure AD/Entra ID Group Policy DNS DHCP SSL/TLS certificates and advanced authentication technologies.
  • Enterprise Applications:Administer the Microsoft 365 tenant (Exchange Online Teams SharePoint Intune) and core communication infrastructure including firewall-integrated emailfiltering and Digium phone/voicemail systems.
  • Storage & Performance:Optimize and monitor Storage Area Networks (SAN) Network Attached Storage (NAS) and direct access devices. Conduct routine performance tuning capacity planning andhardware-softwarecomparative analyses.
  • Procurement & Life Cycle:Develop requests for proposals (RFPs) bids and procurement specifications for system hardware and software. Manage project schedules software licensing asset inventories and vendor/consultant relationships.

2. Security Compliance & Disaster Recovery

  • Security Frameworks:Implement and enforce security policies consistent with agency standards and applicable public-sector frameworks (NIST CJIS FISMA or equivalent).
  • Network Security:Handle day-to-dayfirewalladministration VPN configurations network segmentation and secure communication protocols (SSH SSL).
  • Patch & Vulnerability Management:Maintainand assess all components necessary for server patch management and vulnerability remediation tracking.
  • Disaster Recovery & Business Continuity:Analyze design and implement Business Impact Assessments (BIA) IT Disaster Recovery procedures and Business Resumption Planning. Manage automated backups virus protection and conduct regular restore tests.
  • 3. Systems Analysis Operations & Tier 3 Support
  • Advanced Systems Analysis:Analyze procedures methods and operations of computer-based information systems to design and recommend solutions that improve efficiency and economy.
  • Escalation Support:Serve as the Tier 3 escalation point for complex infrastructure system and communication issues. Provide 2nd and 3rd level troubleshooting for network operating system database and hardware errors.
  • Documentation:Create andmaintainprecise technical documentation runbooks network diagrams standard operating procedures and end-user manuals.
  • Operational Deployments:Translate analytic or mathematical models into operational IT solutions. Handle immediate-need activities including office reconfigurations new hire onboarding and video conferencing setups.
  • 4. Leadership & Collaboration
  • Supervision & Mentorship:Apply sound supervisory and training principles to build an effective workforce. Act as a lead worker or direct supervisor to prioritize workloads assign tasks review/evaluate work and mentor junior IT staff or temporary information support personnel.
  • Cross-Departmental Liaison:Act as a technical liaison to department heads City/County officials external agencies and application developers to coordinate technology needs and system interfacing.
  • Change Management:Participatein change management protocols scheduled maintenance windows and team on-call rotations (accessible via mobile phone during work and non-work hours).
  • Other duties as assigned by the Director of Information &Technology
Knowledge Skills & Abilities

  • Core Networking:In-depth knowledge of IP networking routing switching wireless access points load balancing firewalls and secure communication protocols.
  • Automation & Scripting:Strong shell scripting skills preferably with PowerShell to automate routine administrative processes and extend computer capabilities.
  • System Methodology:Solid understanding of systems development methodologies agile development life cycles and database design concepts (relational vs. hierarchical).
  • Analytical Tools :Familiarity with high-level dataretrievallanguages and end-user application tools (e.g. modern database reporting and dashboard utilities).
  • Soft Skills:Outstanding oral and written communication skills; ability to prepare clear concise technical and budget reports; and the ability to deal tactfully and effectively with diverse stakeholders.
Training & Experience

  • Bachelorsdegreefrom an accredited college or universityininformationsystemsComputerTraining and Experience Requirements
  • Applicants may qualify for this senior position through any combination of extensive and applicable work experience and educational credentials thatdemonstratethe ability to successfully perform the duties:
  • Option A:Bachelors degree from an accredited four-year college or university in Computer Science Information Systems or a closely related fieldANDfive to seven (57) years of progressive experience as a Systems Administrator/Analyst including at least two (2) years of full-time paid experience implementing configuring and securing enterprise-level servers and large computing networks.
  • OptionB:Valid industry certifications (e.g. MCSE ITP Microsoft Certified Solutions Associate/Expert or equivalent)ANDa minimum of three (3) years of dedicated experience supporting mission-critical infrastructure on local and hosted servers.
  • Supervisory Experience:Prior experience leading mentoring or directly supervising technical personnel is highly preferred.


Schedule:The Chief Executive Officer or designee may change the schedule of positions between hybrid and onsite as necessary to accomplish LAHSAs business needs.


Additional Information:LAHSA has adopted a hybrid telework policy requiring employees to work onsite at our Los Angelesofficea minimum of two (2) days per week. Applicants must be able to meet this onsite requirement with or withouta reasonableaccommodation. LAHSA is committed to providing equal employment opportunities and reasonable accommodations to qualified individuals with disabilities. If you requirean accommodation please contact Human Resources attoinitiatethe interactive process.


Residency Requirement:This position requires the employee toresidewithin the State of California. Proof of residency may be requested as part of the onboarding process to ensure compliance with organizational and operational requirements.

Applicants may make a reasonable accommodation request for this job by calling the Human Resources Department at ; or via email at


We are an Equal Opportunity / E-Verify Employer


Required Experience:

Senior IC