Top 46 Senior systems administrator Jobs in La Mirada, Ca

Senior Systems Engineer
Ephesus Solutions —Orange County, CA
- $135,000 - $142,000 a year
- Weekends as needed
- Hybrid work
- Azure
- Computer Science
- 5 years
- Health savings account
- Health insurance
Quick Apply
3d
Senior Systems Administrator
Quantum Electronic Payments —Anaheim, CA
- $85,000 - $105,000 a year
- Full-time
- 5 years
- Office
- Microsoft Office
- Profit sharing
- Health insurance
Quick Apply
12d
Senior System Administrator
Penhall Company —Anaheim, CA
- Full-time
- 5 years
- Office
- Bachelor's degree
12d
Senior IT Systems Engineer
Credit Union of Southern California —Anaheim, CA
- $126,667 - $188,240 a year
- Weekends as needed
- Hybrid work
- System design
- Research
- Office
- Health insurance
Senior Systems Administrator
Anduril Industries —Santa Ana, CA
- $146,000 - $194,000 a year
- Email
- 8 years
- Scripting
- Senior level
Quick Apply
Senior System Administrator
Boeing —Seal Beach, CA
- $146,200 - $197,800 a year
- Computer Science
- 5 years
- Bachelor of Science
- Health savings account
- Disability insurance
Senior Systems Administrator/ Patch Manager
Koniag Government Services —Carson, CA
- Full-time
- Senior level
- Commercial
- Paid holidays
- Health insurance
Senior System Administrator (Temp)
Panda Restaurant Group —Rosemead, CA
- $43.26 - $66.82 an hour
- Temporary
- Hybrid work
- Hospitality
- ERP systems
- Office
- AD&D insurance
- Disability insurance
Quick Apply
Senior Network Administrator (Systems)- Hybrid
Northrop Grumman Federal Credi —Gardena, CA
- $90,000 - $125,000 a year
- Full-time
- Computer science
- 7 years
- Computer Science
- Profit sharing
- Disability insurance
Quick Apply
2d
Senior Systems Administrator
FW ACQUISITION INC —Torrance, CA
- $110,000 - $137,000 a year
- On call
- Background check
- Office
- 3 years
Quick Apply
Sr. IT Systems Administrator, IT Applications
SpaceX —Hawthorne, CA
- $95,000 - $150,000 a year
- Email
- Computer Science
- 3 years
- SQL
- Paid parental leave
- Employee stock purchase plan
13d
System Engineer, Senior - Engemann Admin Student Health - Full Time 8 Hour Days (Exempt) (Non-Union)
USC —Los Angeles, CA
- $99,507 - $164,559 a year
- 8 hour shift
- 7 years
- Computer Science
- Customer service
2d
Senior Clinical Systems Engineer (Medical Device Integration) - Hybrid
Cedars-Sinai —Los Angeles, CA
- $108,056.00 - $172,889.60 a year
- 8 hour shift
- Hybrid work
- Computer Science
- System design
- HIPAA
Senior IT Administrator
CesiumAstro —El Segundo, CA
- $99,000 - $117,000 a year
- Full-time
- Computer science
- Microsoft Outlook
- Computer Science
- Health savings account
- Health insurance
Systems Engineer, Senior - Engemann Admin Student Health - Full Time 8 Hour Days (Exempt) (Non-Union)
USC —Los Angeles, CA
- $99,507 - $164,559 a year
- 8 hour shift
- 7 years
- Computer Science
- Customer service
2d
Senior Systems Administrator
Tecolote Research, Inc. —El Segundo, CA
- $65,000 - $85,000 a year
- Full-time
- Mid-level
- Office
- Windows
- Paid jury duty
- AD&D insurance
10331: Sr. Engineering Systems Administrator - Microsoft 365
Hyundai Autoever America —Irvine, CA
- $110,000 - $125,000 a year
- Full-time
- Office
- Bachelor's degree
- SharePoint
Quick Apply
Senior Collaboration Engineer ITS
USC —Los Angeles, CA
- $140,270.10 a year
- On call
- Google Workspace
- Computer science
- Computer Science
Senior System and Network Administrator
Design West Technologies —Tustin, CA
- $150,000 - $180,000 a year
- Full-time
- Computer science
- Computer Science
- 5 years
- Health insurance
- Dental insurance
Quick Apply
Systems Engineer, Senior - Engemann Admin Student Health - Full Time 8 Hour Days (Exempt) (Non-Union)
Keck Medical Center of USC —Los Angeles, CA
- $99,507 - $164,559 a year
- 8 hour shift
- Background check
- 7 years
- Computer Science
2d

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Senior Systems Engineer

Ephesus Solutions
Orange County, CA

Quick Apply

Job Details

Full-time
$135,000 - $142,000 a year
3 days ago

Benefits

Health savings account
Health insurance
Dental insurance
401(k)
Paid time off
Vision insurance
401(k) matching
Life insurance
Retirement plan

Qualifications

Teamwork
System administration
Computer Science
Serving clients
Bachelor's degree
Server virtualization
Organizational skills
VMware
Information Technology

Full Job Description

Senior Systems EngineerMulti-Client Infrastructure SupportThe Opportunity

Our client is seeking a Senior Systems Engineer to lead infrastructure operations across multiple enterprise environments. This is a dynamic role for someone who thrives in a fast-paced, collaborative environment and wants to make a real impact on organizational technology strategy and performance.

You'll work with a talented team that values technical excellence, continuous learning, and innovation. This role offers exposure to leading-edge technologies, complex infrastructure challenges, and the opportunity to mentor and develop emerging talent. If you're looking for career growth alongside meaningful technical work, this is the place.

About the Role

The Senior Systems Engineer is responsible for the professional and timely resolution of alerts generated from system-managed devices across multiple client environments. The complexity of alerts will range from simple to complex based on the specific client infrastructure. Responsibilities include architecture, installation, support, and documentation of client systems infrastructure networks with capability across Microsoft and virtualized platforms. Systems managed devices range from enterprise storage arrays to local area networking equipment as well as virtualized and physical servers. From time to time, the Systems Engineer may be tasked to work on projects ranging from simple infrastructure refresh to cloud migrations to complex infrastructure implementations.

Key Responsibilities

Resolve systems-generated alerts including monitoring of customer backup environments, VMware environments, patch management, and infrastructure projects across multiple client environments
Serve as an escalation point for the support team and take regular calls as needed during high volume periods
Ensure high level of responsiveness, communication, professionalism, and technical knowledge while continuously striving to improve client experience, perception, and overall satisfaction
Perform regular maintenance tasks on managed devices including firewalls, switches, routers, and servers (both physical and virtual) as directed by management
Follow all in-place change control procedures
Manage and maintain customer backup environments by performing periodic reviews of systems and trial restores as needed to validate backup integrity
Develop general understanding of each managed service's client computing environment and ability to quickly troubleshoot issues as they present themselves
Setup, configuration, and ongoing management of RMM tools including deployment into customer environments during the onboarding process
Identify and resolve root cause of outages caused by failures of client devices; craft complete post-mortems of events to be presented to customers as directed by management
Coordinate with internal resources and third-party service providers to resolve issues as needed
Exercise sound judgment while solving technical issues, including protection of client data during troubleshooting
Manage work and time as service tickets in ticketing system; ensure prompt and accurate time entry to support client billing
Maintain system documentation to support clients; continuously review documentation to ensure relevance to current support requirements
Additional duties and projects as requested by manager or supervisor

What We're Looking ForRequired Qualifications:

Bachelor's Degree in Information Technology, Computer Science, or equivalent
Five to seven years of hands-on experience administering Microsoft and/or VMware computing environments
Recent support of Microsoft Office 365 and/or Azure deployments
Current Microsoft Certified Systems Engineer (MCSE) or equivalent certification
Strong organizational skills with demonstrated ability to multi-task effectively
Excellent interpersonal and communication skills, both verbal and written
Demonstrated active listening and customer care in a fast-paced environment
Ability to work weekends and/or off-hours as necessary to meet business needs

Preferred Qualifications:

Experience with VMware, Enterprise Storage, Converged and Hyper-converged infrastructure
Linux-based network administration
Networking and firewall configuration
Current experience working in the MSP industry

Core Competencies

Problem Solving – Identifies and analyzes problems, evaluates solutions and alternatives, resulting in effective recommendations
Customer Satisfaction – Provides professional, helpful, high-quality service to ensure customers' needs are met and exceeded
Results Driven – Creates and drives a culture focused on solutions and metrics, builds cooperation, encourages teamwork
Creativity & Innovation – Approaches situations with new perspectives, encourages new ideas resulting in more effective resolutions
Technical Expertise – Maintains current knowledge across multiple infrastructure domains and applies that knowledge effectively across diverse client environments

Why Join Us

Fast-Paced Environment: Work on diverse infrastructure challenges across multiple enterprise clients. No two days are the same.
Great Team: Collaborate with talented, collaborative professionals who are committed to technical excellence and supporting each other's success.
Leading-Edge Technology: Stay current with the latest Microsoft, VMware, and cloud technologies. Continuous exposure to emerging infrastructure solutions.
Career Development: Clear pathways for growth. Mentorship opportunities, certification support, and exposure to complex technical projects that build your skillset.
Comprehensive Benefits: Competitive compensation, health insurance, 401(k) matching, professional development budget, and work-life balance initiatives.
Impact & Ownership: You'll directly influence infrastructure strategy across multiple organizations. Your work matters and drives real business value.

Physical & Work Environment Requirements

This role requires the ability to communicate verbally and hear clearly, sit and stand for extended periods, reach with arms and hands, perform movements such as climbing, balancing, twisting, stooping, maintain near and far vision, operate a computer keyboard with regular exposure to screen glare, lift up to 25 lbs, and travel by automobile or airplane up to 25%. Must be able to concentrate and analyze information to solve problems, manage multiple priorities, communicate effectively with colleagues and customers, adapt to changing priorities, and maintain professionalism under pressure.

Ready to Make an Impact?

If you're a skilled infrastructure professional looking to take the next step in your career with a team that values your expertise and invests in your growth, we'd love to hear from you.

Pay: $135,000.00 - $142,000.00 per year

Benefits:

401(k)
401(k) matching
Dental insurance
Health insurance
Health savings account
Life insurance
Paid time off
Retirement plan
Vision insurance

Experience:

System administration: 5 years (Preferred)
VMware: 5 years (Preferred)
Azure: 5 years (Preferred)
Microsoft 365: 5 years (Preferred)
Network configuration: 5 years (Preferred)
Firewall: 3 years (Preferred)

License/Certification:

MCSE (Preferred)
CCNP (Preferred)

Work Location: Hybrid remote in Orange County, CA

Quick Apply

Refine Your Search

senior systems administrator jobs in la mirada, ca

Senior Systems Engineer

Senior Systems Administrator

Senior System Administrator

Senior IT Systems Engineer

Senior Systems Administrator

Senior System Administrator

Senior Systems Administrator/ Patch Manager

Senior System Administrator (Temp)

Senior Network Administrator (Systems)- Hybrid

Senior Systems Administrator

Sr. IT Systems Administrator, IT Applications

System Engineer, Senior - Engemann Admin Student Health - Full Time 8 Hour Days (Exempt) (Non-Union)

Senior Clinical Systems Engineer (Medical Device Integration) - Hybrid

Senior IT Administrator

Systems Engineer, Senior - Engemann Admin Student Health - Full Time 8 Hour Days (Exempt) (Non-Union)

Senior Systems Administrator

10331: Sr. Engineering Systems Administrator - Microsoft 365

Senior Collaboration Engineer ITS

Senior System and Network Administrator

Systems Engineer, Senior - Engemann Admin Student Health - Full Time 8 Hour Days (Exempt) (Non-Union)

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