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

CyberSecurity/SysAdmin

Penhall Company

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.

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.

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.

Proficiency in managing virtualization platforms such as VMware or Azure.

Networking expertise, including DHCP, DNS, VLANs, and troubleshooting using packet capture tools.

Critical Thinking: Anticipates potential IT challenges and develops proactive solutions.

Attention to Detail: Ensures accuracy in configurations, updates, and documentation.

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.

Bachelors degree in Computer Information Systems or a related field, or equivalent experience and certifications.

Certifications such as Microsoft 365 or MCSE are preferred.

Prolonged periods of sitting at a desk and working on a computer.

Ability to walk job sites when necessary.

May be required to travel to job sites and other locations.

Legal Disclaimer:

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential

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. (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.

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.

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.

PI4c5f77722f33-38[phone removed]

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the CyberSecurity/SysAdmin in Chino, CA vacancy
  •  ...Job Title: System Administrator II Location: Onsite, Houston TX 37/ hr W2 Position Summary The Telecom Specialist provides telecommunications, unified communications, and contact center support for corporate and customer service operations. This role is responsible... 
    Suggested
    Work at office

    iShare Inc.

    Ontario, CA
    5 days ago
  • Job Summary: The Systems Administrator/Operations Support Specialist - Intermediate is responsible for providing technical support and operational assistance for audio-visual, telecommunications, and video conferencing systems. This role involves troubleshooting, user... 
    Suggested
    Remote work
    Flexible hours

    vTech Solution

    Ontario, CA
    3 days ago
  •  ...Job Title: System Administrator - Windows & Linux Location: Toronto, ON Work Model: Onsite Job Type: Full Time (FTE) Job Description We are seeking an experienced System Administrator - Windows & Linux with strong expertise in Windows and... 
    Suggested
    Full time
    Remote work

    Acestack

    Ontario, CA
    3 days ago
  • $80k - $105k

     ...Job Description Job Description Luna Innovations Incorporated (Luna) is seeking a Site IT System Administrator to serve as the primary owner of IT operations for our Chino, California facility, responsible for keeping the site's systems, infrastructure, and technology... 
    Suggested
    Work at office
    Local area
    Remote work
    Work from home
    Weekend work
    3 days per week

    Luna Innovations

    Chino, CA
    13 days ago
  •  ...Job Description Job Description Senior IBM i (iSeries / AS/400) Systems & Operations Administrator Mag Instrument, Inc., maker of the world-famous MAGLITE® flashlight, is seeking an experienced IBM i professional to support our business-critical IBM i environment... 
    Suggested
    Casual work
    Worldwide
    Night shift

    MAG INSTRUMENT, INC.

    Ontario, CA
    4 days ago
  • $82k - $117k

     ...along the way. We are much more than a brand here. We are a way of life, a mindset. Join us. A Day in the Life: The Systems Administrator II is a crucial member within the global infrastructure team. The applicant provides level 3 support for data center systems... 
    Full time
    Weekend work

    Monster Energy

    Corona, CA
    5 days ago
  •  ...Assignment: RQ11626 - Systems Administrator/Operations Support Specialist Intermediate Requisition (SS): RQ11626 Job Title: Systems Administrator/Operations Support Specialist Start Date: 2026-10-12 Client: Justice Technology Services End Date: 2... 
    Work at office
    Remote work

    Cleo Consulting

    Ontario, CA
    3 days ago
  •  ...Job Title: Systems Administrator/Operations Support Specialist - Intermediate Location: Toronto Work Model: Onsite Duration: 5 months Extension: 1 Time Must Haves Minimum 2 years of experience in audio-visual and video conferencing... 
    Remote work

    Innosystech Inc

    Ontario, CA
    3 days ago
  •  ...Network Systems AdministratorThe Network Systems Administrator manages and supports the organization's network, server, cloud, security, and communication systems. This role ensures technology infrastructure remains secure, reliable, and available.Essential Duties and... 
    Work at office

    RecruiterPerry

    Ontario, CA
    4 days ago
  •  ...Work Arrangement: Onsite Job Description We are seeking a Full Time SAP S/4HANA DBA with strong SAP HANA database administration experience to support database operations, performance, availability, and production environments. The ideal candidate will work... 
    Full time

    Acestack

    Ontario, CA
    3 days ago
  •  ...opportunities, please visit our website We are seeking a SUSE Linux Administrator to join our team. This role will involve managing and maintaining SUSE Linux Enterprise Server environments, performing system updates, and ensuring system security and performance. The ideal... 

    Trilyon, Inc.

    Corona, CA
    4 days ago
  • If you have any questions about this position please contact Human Resources. The Network Systems Administrator oversees and administers network design, implementation, organization, and troubleshooting, as well as serving as the primary Systems Administrator for Microsoft... 
    Work at office
    Local area

    Gateway Seminary

    Ontario, CA
    3 days ago
  • Bastian Solutions is hiring a Vision Systems Engineer to design and deploy machine vision solutions for warehouse automation projects in Southern California. You will select and configure cameras, design lighting solutions, develop inspection algorithms using Cognex VisionPro... 

    Warehouse Fixers

    Ontario, CA
    4 days ago
  •  ...we embrace “One Good Way” as a path to efficiency, scaling and speed of implementation. The Senior Industrial Engineer I, Process & Systems Integration will contribute to defining and implementing the new processes and systems to support our north star vision and will... 
    Full time
    Local area

    Nordstrom

    Ontario, CA
    4 days ago
  • $53.04k - $56.22k

     .... This position is responsible for managing endpoint devices, providing helpdesk support, and performing routine maintenance of IT systems across all locations. The IT Technician plays a key role in ensuring that staff have reliable, secure, and properly functioning technology... 
    Full time
    Immediate start

    OPARC

    Montclair, CA
    4 days ago
  •  ...Work Model: Hybrid Employment Type: Full-Time Permanent (FTE) Job Summary We are seeking an experienced SQL Database Administrator (DBA) to support enterprise database migration and modernization initiatives. The DBA will be responsible for assessing on-... 
    Permanent employment
    Full time

    Acestack

    Ontario, CA
    3 days ago
  • $115k - $164.6k

     ...successful candidate is expected to report to Markham or Oshawa office three times per week, at minimum. The Role The Senior Systems Engineer will join the Systems Engineering team within the Device Data Capture and Data Engineering organization and help define, integrate... 
    Full time
    Work at office
    Relocation package

    General Motors

    Ontario, CA
    a month ago
  • $36 - $40 per hour

     ...IT Help Desk Specialist From engine bay to payload, we protect vital structures and systems. Hera Technologies is a premier contract manufacturer specializing in high-precision metallic and non-metallic solutions for the Aerospace, Defense, and Space sectors. Our commitment... 
    Hourly pay
    Permanent employment
    Full time
    Contract work
    Work at office
    Monday to Friday

    Canopy A&D

    Ontario, CA
    3 days ago
  • $18 - $50 per hour

     ...graduation and completion of the program Position Overview: Siemens Digital Industries Software is seeking a Digital Thread & Systems Engineering Intern to support the Capital PreSales organization. This role offers an opportunity to work on innovative digital... 
    Remote job
    Hourly pay
    Full time
    Internship
    Local area

    Siemens

    Pomona, CA
    3 days ago
  • $21 - $29 per hour

     ...standards, equipment operations, TPMS (Tire Pressure Monitoring systems), product specifications, seasonality, Point-of-Sale systems, phone...  ...Experience Primary Location... 3951 GRAND AVE, CHINO, CA 91710-5429, United States of America Walmart and its subsidiaries... 
    Hourly pay
    Minimum wage
    Full time
    Temporary work
    Part time

    Walmart

    Chino, CA
    1 day ago
  • Job Summary: The Senior Systems Testing/QA Specialist is responsible for leading and executing comprehensive testing activities within enterprise-level IT projects. This role focuses on developing test strategies, plans, and cases aligned with business and technical requirements... 
    Full time

    vTech Solution

    Ontario, CA
    3 days ago
  • Job Summary: The Senior Systems Testing/QA Specialist is responsible for leading and executing comprehensive testing strategies for large-scale enterprise systems. This role involves planning, developing, and implementing test plans and automated scripts to ensure software... 
    Flexible hours

    vTech Solution

    Ontario, CA
    3 days ago
  •  ...for all IT related queries at the user level, responding to user needs in a timely manner and ensuring the optimal running of all systems, among other technical duties.  The right candidate will repair existing or confiture new PC's, laptops, iPhones, iPads, other similar... 
    Work at office
    Remote work

    Montessori Association of Covina

    Pomona, CA
    17 days ago
  •  ...Engineer (SRE) Support Engineer to support our Pet Platform teams. This is a hybrid role that combines Oracle Database Administration, Linux/Unix System Administration, Production Support, and SRE responsibilities. The ideal candidate will have foundational... 

    J M Group Inc

    Ontario, CA
    3 days ago
  •  ...Must be CST or EST The Engineering and Business Systems team works collaboratively across Chainalysis’ Business Automation, Data...  ...building out the technology architecture as well as the underlying administration and engineering practices. The ideal candidate brings strong... 
    Full time
    Shift work

    Chainalysis

    Ontario, CA
    8 days ago
  •  ...Jacuzzi Group is seeking a Staff Chemical Engineer to serve as the technical leader for water chemistry, water treatment, and water-system development across Jacuzzi Group's hot tub product portfolio, sitting within our cross-functional Engineering department and... 
    Contract work
    Work at office
    Local area
    Remote work
    Flexible hours
    Shift work

    Jacuzzi Group

    Chino, CA
    1 day ago
  • City of Claremont seeks a highly motivated Information Technology Administrator to ensure the optimal operation, security, and reliability of servers, storage, cloud, and software systems across a multi-location environment. Under the IT Officer, the candidate will manage... 
    For contractors

    Koitecc Solutions

    Claremont, CA
    1 day ago
  • The City of Claremont is seeking an Information Technology Administrator to ensure the optimal operation, security, and reliability of servers, storage, cloud, and software across a diverse, multi-location environment. Under the direction of the IT Officer, you will oversee... 

    Sacbar

    Claremont, CA
    1 day ago
  • $63k - $74k

     ...peripherals. Diagnoses and resolve hardware, software, operating system, and application issues. Support Windows operating systems...  ...support procedures. Required Technical Skills Windows 10/11 Administration Active Directory & Group Policy Microsoft 365 (Outlook,... 
    Temporary work
    Local area
    Remote work

    Cognizant

    Ontario, CA
    5 days ago
  • $100k - $125k

     ...Systems Engineer (DPRI/Range Systems)Saalex is seeking a Systems Engineer (DPRI/Range Systems) in Corona, CA. Saalex is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services,... 
    Full time
    Temporary work
    For contractors
    Work at office
    Remote work

    ClearanceJobs

    Corona, CA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to CyberSecurity/SysAdmin. Be the first to apply!