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Junior System Admin Jobs in Riverside, CA (NOW HIRING)

Penhall

Senior System Administrator

Anaheim, CA · On-site

$90K - $122K/yr

Position Description The Senior Systems Administrator will serve as a critical member of Penhall ... Provide training, guidance, and mentorship to junior team members and support staff. * Perform ...

Chroma Systems Solutions Inc

Jr. Buyer

Foothill Ranch, CA · On-site

$20 - $24/hr

About the Organization Chroma Systems Solutions, Inc. is a leading designer and manufacturer of ... Will also be responsible for Front Desk Admin duties including but not limited to answering and ...

Chroma Systems Solutions Inc

Jr. Buyer

Lake Forest, CA

$20 - $24/hr

Will also be responsible for Front Desk Admin duties including but not limited to answering and ... MAS 100 (ERP Systems) experience a plus but general ERP experience preferred * 1+ years buyer ...

PROSITES INC

Junior Accountant

Murrieta, CA

$65K - $72K/yr

... systems. Essential Duties and Responsibilities: * Process and match invoices against purchase ... Administer the virtual card program, including card issuance by cost center and GL dimension ...

Prosites Corporate

Junior Accountant

Murrieta, CA · On-site

$65K - $72K/yr

... systems. Essential Duties and Responsibilities: * Process and match invoices against purchase ... Administer the virtual card program, including card issuance by cost center and GL dimension ...

ProSites

Junior Accountant

Murrieta, CA · On-site

$65K - $72K/yr

... systems. Essential Duties and Responsibilities: * Process and match invoices against purchase ... Administer the virtual card program, including card issuance by cost center and GL dimension ...

Bowhead

Red Hat Certified Engineer (RHCE)

Corona, CA · On-site

Provide mentorship and technical leadership to junior Linux and container platform administrators. Provide technical briefings and system status updates to program leadership and government ...

Imperial Dade

Junior Purchasing Agent

Loma Linda, CA · On-site

$55K - $65K/yr

Utilize existing tools and systems to analyze and take action on current inventory positions and ... It is unlawful in Massachusetts to require or administer a lie detector test as a condition of ...

Ampronix

Customer Service Rep/Admin

Irvine, CA · On-site

$17 - $23.25/hr

Junior Customer Service Representative (Jr. CSR) Position Summary The Junior Customer Service ... systems and databases. * Assist with customer account setup and documentation as needed.

Ampronix

Customer Service Rep/Admin

Irvine, CA · On-site

$22 - $24/hr

Junior Customer Service Representative (Jr. CSR) Position Summary The Junior Customer Service ... systems and databases. * Assist with customer account setup and documentation as needed.

Masimo

Sr Engineer, IT Systems (Endpoint)

Irvine, CA · On-site

$120K - $130K/yr

... administer SCCM (Configuration Manager) for software deployment, patch management, compliance ... to junior engineers and service desk teams. • Participate in system upgrades, lifecycle ...

Masimo

Sr Engineer, IT Systems (Endpoint)

Irvine, CA

$120K - $130K/yr

Manage and administer SCCM (Configuration Manager) for software deployment, patch management ... and mentorship to junior engineers and service desk teams. Participate in system upgrades ...

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Junior System Admin information

See Riverside, CA salary details

$34.4K

$66K

$89.7K

How much do junior system admin jobs pay per year?

As of Jul 23, 2026, the average yearly pay for junior system admin in Riverside, CA is $65,980.00, according to ZipRecruiter salary data. Most workers in this role earn between $54,800.00 and $76,200.00 per year, depending on experience, location, and employer.

What are Junior System Admins?

Junior System Admins, also known as junior system administrators, are entry-level IT professionals responsible for supporting and maintaining an organization’s computer systems and networks. They assist in installing, configuring, and troubleshooting hardware and software, monitoring system performance, and ensuring security protocols are followed. Typically, they work under the supervision of senior system administrators and help with tasks such as user account management, backups, and routine system updates. This role is ideal for those starting their careers in IT and looking to gain hands-on experience in system administration.

What is the difference between Junior System Admin vs Network Technician?

AspectJunior System AdminNetwork Technician
CertificationsCompTIA A+, Network+; Microsoft CertifiedCompTIA Network+, Cisco CCNA
Work EnvironmentIT departments, data centers, cloud environmentsNetwork infrastructure, cabling, hardware setup
Employer & Industry UsageTech companies, enterprises, managed service providersTelecommunications, ISPs, large organizations

While both roles support IT infrastructure, a Junior System Admin manages servers, operating systems, and overall system health, whereas a Network Technician focuses on network hardware, connectivity, and network troubleshooting. The roles often overlap but differ mainly in their technical focus and daily tasks.

What are the key skills and qualifications needed to thrive as a Junior System Admin, and why are they important?

To thrive as a Junior System Admin, you need a foundational understanding of operating systems, networking concepts, and troubleshooting, typically supported by a degree in IT or related certifications like CompTIA A+ or Network+. Familiarity with system administration tools such as Active Directory, ticketing systems, and basic scripting languages is commonly required. Attention to detail, problem-solving abilities, and effective communication are essential soft skills for this role. These competencies ensure smooth IT operations, quick issue resolution, and strong support for end-users and teams.

What are some common challenges faced by Junior System Admins, and how can they effectively address them?

Junior System Admins often encounter challenges such as troubleshooting unfamiliar technical issues, managing multiple support requests simultaneously, and adapting to evolving IT environments. To address these, it's helpful to prioritize clear communication with team members, document solutions for recurring problems, and stay proactive about learning new tools or technologies. Building strong relationships with senior admins and other IT staff can also provide valuable guidance and support as you develop your expertise.
What are the most commonly searched types of System Admin jobs in Riverside, CA? The most popular types of System Admin jobs in Riverside, CA are:
What are popular job titles related to Junior System Admin jobs in Riverside, CA? For Junior System Admin jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Junior System Admin jobs in Riverside, CA look for? The top searched job categories for Junior System Admin jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Junior System Admin jobs? Cities near Riverside, CA with the most Junior System Admin job openings:
Junior System Admin jobs near you
Infographic showing various Junior System Admin job openings in Riverside, CA as of July 2026, with employment types broken down into 1% As Needed, 79% Full Time, 15% Part Time, 1% Temporary, and 4% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution, with an average salary of $65,980 per year, or $31.7 per hour.
Senior System Administrator

Senior System Administrator

Penhall

Anaheim, CA • On-site

$90K - $122K/yr

Full-time

Posted 4 days ago

Penhall Company rating

7.5

Company rating: 7.5 out of 10

Based on 11 frontline employees who took The Breakroom Quiz

Job description

Position Description
The Senior Systems Administrator will serve as a critical member of Penhall's IT team, responsible for maintaining and enhancing the company's 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 Penhall's 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:
  • Bachelor's 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 Company's 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.

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