Senior System Administrator
Penhall
Senior System Administrator
Position Description
The Senior Systems Administrator will serve as a critical member of Penhall's IT team, responsible for maintaining and enhancing the companys IT infrastructure, both on-premises and in the cloud. This role will focus on ensuring high system availability, top-tier support, and adherence to IT best practices while delivering efficient and scalable solutions. The position requires expertise in system administration, cybersecurity, and process automation, with the ability to manage multiple priorities in a fast-paced environment.
Duties and Responsibilities:
- Manage and administer on-premises and cloud-based IT infrastructure, including networking, servers, Active Directory, Azure, Microsoft 365, Track IT, and cybersecurity programs.
- Serve as the highest escalation point for IT-related challenges, engaging with vendors and troubleshooting complex issues.
- Design, implement, and optimize systems maintenance plans, including system performance monitoring, patching, and disaster recovery testing, with a focus on automation and improvement opportunities.
- Champion cybersecurity best practices, including multi-factor authentication (MFA), least-privilege access, conditional access, and secure system configurations.
- Lead efforts to replace or upgrade existing systems and align IT infrastructure with business goals.
- Maintain and document IT processes, policies, and systems configurations (e.g., network diagrams, patch management, disaster recovery, security measures).
- Configure and manage firewalls, switches, wireless access points, VPNs, and other networking devices.
- Monitor, analyze, and act on system and security alerts, including those from Proofpoint and CrowdStrike platforms.
- Deploy and manage backup and recovery solutions, ensuring data integrity and business continuity.
- Create, maintain, and optimize PowerShell scripts and other automation tools to streamline repetitive IT tasks.
- Conduct regular network audits and implement corrective measures as needed.
- Manage and implement endpoint configuration tools, such as Automox, to ensure systems are secure and compliant.
- Provide exceptional customer support to internal stakeholders and assist in resolving IT-related issues in a timely manner.
- Author and maintain technical documentation using tools such as Microsoft Visio, Word, and PowerPoint.
- Stay informed of emerging IT trends and technologies and recommend relevant solutions for Penhalls needs.
- Provide training, guidance, and mentorship to junior team members and support staff.
- Perform other related duties as assigned by the manager.
Position Requirements
Required Skills and Abilities:
- Proficiency in Microsoft 365 ecosystem, including Exchange Online, Teams, SharePoint, and OneDrive.
- In-depth knowledge of Azure AD, including SSO, conditional access, synchronization methods, and group policy management.
- Expertise in cybersecurity measures, including endpoint protection, encryption, intrusion detection, and secure configurations.
- Strong experience with cloud platforms, particularly Azure, and performing premise-to-cloud migrations.
- Advanced skills in PowerShell scripting and other automation tools.
- Proficiency in managing virtualization platforms such as VMware or Azure.
- Networking expertise, including DHCP, DNS, VLANs, and troubleshooting using packet capture tools.
- Familiarity with enterprise backup solutions like Veeam and storage systems, including SAN and iSCSI technologies.
- Strong written and verbal communication skills, with the ability to convey technical information to non-technical stakeholders.
Essential Core Competencies:
- Problem Solving: Ability to efficiently diagnose and resolve technical issues.
- Critical Thinking: Anticipates potential IT challenges and develops proactive solutions.
- Attention to Detail: Ensures accuracy in configurations, updates, and documentation.
- Communication Skills: Clearly explains technical concepts to stakeholders and creates comprehensive documentation.
- Team Collaboration: Works effectively with IT, development, and operations teams to achieve infrastructure goals.
- Customer Service Orientation: Delivers timely and effective support to end-users and stakeholders.
- Adaptability: Responds to evolving technologies and organizational priorities with flexibility.
Education and Experience:
- Bachelors degree in Computer Information Systems or a related field, or equivalent experience and certifications.
- Minimum of 5+ years of systems administration experience in an enterprise environment.
- Certifications such as Microsoft 365 or MCSE are preferred.
Physical Requirements:
- Prolonged periods of sitting at a desk and working on a computer.
- Must be able to lift up to 15 pounds at times.
- Ability to walk job sites when necessary.
- May be required to travel to job sites and other locations.
Equal Opportunity Employer
Legal Disclaimer:
Reasonable accommodations may be made to enable individuals with disabilities to perform the essential
functions of the job.
Penhall Company is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, compensation inquiries, discussions or disclosures, gender identity and/or expression, status as a veteran, and basis of disability or any other federal, state or local protected class. (41 CFR 60-1.4(a), 60-300.5(a) and 60-741.5(a))
This job description is intended to describe the general nature and level of work being performed by employees in this position. It is not intended to be an exhaustive list of all duties, responsibilities, or qualifications required. Penhall Company reserves the right to modify, add, or remove duties and to assign other responsibilities as necessary.
AI-Assisted Hiring and Automated Decision Tool Disclosure
The Company may use Artificial Intelligence (AI), machine learning technologies, and/or automated decision-making tools to assist in certain aspects of the recruitment and hiring process, including reviewing applications, resumes, assessments, and candidate qualifications. These tools are used to support the evaluation process and are not used as the sole basis for employment decisions.
All employment decisions are ultimately made by qualified Company representatives. The Company maintains human oversight of hiring decisions and does not permit automated systems to make final employment determinations independently.
The Company is committed to equal employment opportunity and to complying with all applicable federal, state, and local employment, privacy, and anti-discrimination laws. The Company does not intentionally use AI systems in a manner that unlawfully discriminates against applicants or employees based on any protected characteristic under applicable law.
Applicants may request reasonable accommodations, alternative evaluation methods, or additional information regarding the Companys use of automated tools by contacting Human Resources.
Where required by applicable law, the Company may provide additional notices regarding the use of automated decision-making tools, data practices, retention periods, or bias audit information.
PI7ba0aaac8667-26289-41524566
$103k - $155k
...scope of computing infrastructure, end‑user systems, servers, virtualization, cloud,... ...operations Take ownership of Linux systems administration—deploying, configuring, automating, and... ...compliance (AS9100) Partner closely with senior systems engineers (Linux, Windows, Infrastructure...Senior- ...Senior System Administrator Position Description The Senior Systems Administrator will serve as a critical member of Penhall's IT team, responsible for maintaining and enhancing the companys IT infrastructure, both on-premises and in the cloud. This role will...SeniorLocal area
$123k - $180k
...Senior IT System Administrator Vast is developing next-generation space stations and space infrastructure using an incremental, hardware-rich, and low-cost approach. Vast is rapidly developing its multi-module Haven Station to ensure a continuous human presence in...SeniorPermanent employmentFull timeTemporary workWeekend workAfternoon shift- ...Senior System AdministratorThe Senior System Administrator's role is to administer Pipeline Health's computer systems to ensure high levels of availability and security of the supported business applications. This individual participates in the planning and implementation...SeniorLocal area
$90k - $125k
...Senior Network AdministratorGuardian of Uptime. Architect of Connectivity. Slayer of Downtime... ...solving complex challenges and ensuring systems run with precision and reliability? If... ...team.We are seeking a Senior Network Administrator to design, build, secure, and optimize...SeniorWork experience placementWork at officeMonday to FridayWeekend work$30 - $33 per hour
...Obagi IT Systems AdministratorHourly Rate: $30.00 to $33.00/hr DOEObagi Cosmeceuticals is an industry leading dermo-cosmetic brand... ...is seeking a dependable and motivated entry level IT Systems Administrator with a strong onsite presence, to support our IT team during a...Contract workWork at officeRemote work- SCAN Health Plan is seeking a Help Desk Technician in Long Beach, CA to provide first-line support for hardware, software, and networking issues across Microsoft 365 and cloud tenants. You will diagnose problems, guide users, and escalate complex cases to higher-level ...Senior
$32.5 - $36 per hour
Job Description Overview\n Intuit is seeking highly motivated individuals to join our dynamic team as dedicated year-round TurboTax Retail Experts in one of our TurboTax Retail or Flagship locations across the United States. This unique opportunity combines tax expertise...SeniorLocal area$165k - $231k
...Senior Embedded Linux Engineer Torrance, California, United States Neros is a defense technology company rebuilding America's... ...industrial base. We design and manufacture high-performance unmanned systems that are tested in combat, iterated at startup speed, and built...SeniorWork experience placement- ...Senior Platform Engineer Long Beach, CA (Hybrid) / Austin, TX Disability Accommodation for Applicants to Chorus Innovations At Chorus Innovations, we are committed to fostering an inclusive and accessible workplace environment for all individuals, including job...Senior
$27 - $34 per hour
Rocket Lab seeks a Quality Inspector III - Mechanical to join our Long Beach-based team. You will perform complex inspections, document non-conformances, and support root-cause mitigation. The role emphasizes precision, consistency, and collaboration with engineering and...SeniorHourly pay$154k - $230k
...Vehicle Software team develops the safety-critical software that runs on Terran R. The work spans a distributed, real-time control system operating under extreme conditions like Mach 5 atmospheric flight, with a deployment pace that allows you to see your code run on rocket...Senior- ...AstroForge IT Systems AdministratorAt AstroForge, our mission is to make space resources accessible on Earth. We mine asteroids to... ...DescriptionAstroForge is seeking its first dedicated IT Systems Administrator to build, maintain, and scale the company's internal technology...Permanent employmentFor contractorsWork at officeWeekend work
- ...Senior DevOps Engineer Eleven Recruiting is seeking a Senior DevOps Engineer for one of our largest aerospace manufacturing clients located in Long Beach, CA. In this role, you will be part of an SRE team supporting our company's efforts in expanding our automation...Senior
- ...UCLA Health is seeking a dedicated Senior Care Physician to join our innovative Senior... ...older. Built on the Age-Friendly Health System's \"5Ms\" framework-What Matters, Medication... ..., with additional time allocated for administration and chronic care management. Develop professionally...Senior
- ...Rocket Lab is seeking a Senior Software Engineer I - Data Engineering to design and scale core data platforms that power Rocket Lab's operations. You will work onsite in Long Beach, CA, building data pipelines, storage, APIs, and processing platforms for engineers across...Senior
- Relativity Space is seeking an experienced video editor to lead post‑production for Terran R storytelling. You’ll edit footage into compelling videos with color, sound, and motion graphics, under the guidance of the Manager of Media Production. The role spans commercial...Senior
$125.4k - $181.42k
...Myplacehealth is seeking a Senior Software Engineer to help build and scale our healthcare platform from our Long Beach office. You will design and deliver secure, scalable healthcare solutions while collaborating across teams to develop APIs and integrations. This role...SeniorWork at officeRemote work$135.48k - $350.64k
...to help launch a new large rocket for the very first time. SENIOR / PRINCIPAL PROPULSION ENIGNEER As Senior/Principal Propulsion... ...understanding of fluid dynamics, thermodynamics, cryogenic systems, and rocket engine architecture. ~ Familiarity with engine P&...SeniorPermanent employmentFull timeLocal areaFlexible hours$144k - $243k
...launch vehicle for larger constellation deployment. Our Space Systems business designs and builds our extensive line of satellites, payloads... ...to help launch a new large rocket for the very first time. SENIOR COMBUSTION DEVICES ENGINEER II / PRINCIPAL COMBUSTION DEVICES...SeniorPermanent employmentFull timeLocal areaFlexible hours- ...software. Expertise in Rust, C++, Linux OS concepts, and networking protocols is essential. Key Skills Rust C++ Linux OS TCP/IP UDP CI/CD System Architecture Real-time Control Systems Embedded Software Telemetry Systems HITL HOOTL Algorithms Data Structures Memory Management...Senior
- ...Senior AI Engineer We are seeking a senior AI engineer to design and build production-grade LLM-powered applications and agentic systems. This role owns the end-to-end development of intelligent solutions—from architecture to deployment—leveraging Python, modern LLM...Senior
- .... Demonstrated ability to read technical documentation and understand complex hardware assembly sequences. Experience with ERP/MRP systems. Basic experience writing SQL queries or building data visualizations (IE. Power BI) to track health metrics. Ability to plan the program...SeniorWork experience placement
- CAL IT Group is a growing full-service Managed Services Provider (MSP) currently seeking a Systems Administrator. In this role, you will design, implement, and maintain the server and network infrastructure for our diverse client base. If you're technically sharp, thrive...Full timeCasual work
- .... Demonstrated ability to read technical documentation and understand complex hardware assembly sequences. Experience with ERP/MRP systems. Basic experience writing SQL queries or building data visualizations (IE. Power BI) to track health metrics. Ability to plan the program...SeniorWork experience placement
$190k - $250k
...A bit about us: We are a large, physician-owned hospital system across the US. Through our nearly 20 not-for-profit hospitals and... ...excellent communication skills and the ability to present clearly to senior leadership Demonstrated ability to exercise sound judgment...SeniorLocal area$155k - $225k
...Senior Flight Software EngineerDenver, CO or Long Beach, CATrue Anomaly seeks those with the talent and ambition to build the technology... ...-level device driver development and safety critical systems experienceExperience with embedded RTOS such as RTLinux or Azure...Senior$35 - $40 per hour
...Century Group is partnering with a client who is seeking a Senior Bookkeeper/Accountant to join their team. Exact compensation may vary based on skills, experience, and location. Expected hourly rate $35 to $40 per hour. Job Responsibilities : Keep accurate financial...SeniorHourly pay$105k - $200k
...Senior Global Supply Manager Denver, CO or Long Beach, CA True Anomaly seeks those... ...You will formulate processes, implement systems, and enable a strategic supply base to... ...degree in Supply Chain Management, Business Administration, Engineering, or a related field 8+...Senior- ...Job Title Senior Consultant | Identity Management | IAM Architecture ConsultancyWork Location & Reporting Address Long Beach, CA 90802 **Hybrid work setup**Vendor Rate $69.10/hr.Contract duration 3Target Start Date 27 Jul 2026Job Details:Key Responsibilities: Looking...SeniorContract workFlexible hoursShift work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior System Administrator. Be the first to apply!
- senior associate attorney Long Beach, CA
- senior developer Long Beach, CA
- senior aws cloud engineer Long Beach, CA
- remote senior salesforce administrator Long Beach, CA
- senior manager tax Long Beach, CA
- senior property accountant Long Beach, CA
- senior tax Long Beach, CA
- senior helpdesk technician Long Beach, CA
- audit senior Long Beach, CA
- senior principal cloud computing engineer Long Beach, CA



