IT Infrastructure Jobs in California

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Senior IT Systems Engineer

General Matter

Los Angeles, California, USA

Full-time

About the Company At General Matter, we're strengthening America's capacity in nuclear energy to create a new set of possibilities, from generating clean energy at scale to forging energy security. With nuclear energy powering the next wave of American progress, we're ensuring our country has the fuel it needs for the next generation of reactors, no matter what's happening around the world. We are backed by top tier investors. Our lean, world-class team of engineers and operators is applying a

Network Security Engineer

SpaceX

Hawthorne, California, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. NETWORK SECURITY ENGINEER SpaceX is looking for a Network Security Engineer with expertise of network security technologies (firewalls, VPNs, IDS/IPS, etc.). This employee will be a member of the Security Engineering

Lead Full-Stack Software Engineer, Remote within U.S.

Cisco Systems, Inc.

Remote

Full-time

Applications are accepted until further notice. At Meraki, we're making IT easier, faster, and smarter. Our full-stack teams build and maintain our web application, which supports millions of network devices from our cloud. Our customers use the Meraki dashboard to monitor and configure critical IT infrastructure that serves tens of millions of people every single day. As a Technical Leader on the Foundational Features team at Meraki, you will collaborate with other engineers and leaders to de

IT Systems Administrator, Launch

SpaceX

Hawthorne, California, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. IT SYSTEMS ADMINISTRATOR, LAUNCH SpaceX is looking for a highly skilled and knowledgeable IT Systems Administrator to support the networking, compute administration, and application support needs of our launch environ

Systems Infrastructure Engineer

Apex Systems

San Diego, California, USA

Full-time

Job#: 2081902 Job Description: Systems Infrastructure Engineer (Onsite, San Diego) This position is accountable for overall design, installation and maintenance of the organization's LAN, WAN and network security systems. Responsibilities include analyzing system performance, utilization reporting and capacity planning, establishing and implementing policies and procedures for LAN/WAN usage throughout the organization, executing network and security projects, executing and implementing securit

Systems Administrator

Alo

California, USA

Full-time

WHY JOIN ALO? Mindful movement. It's at the core of why we do what we do at Alo-it's our calling. Because mindful movement in the studio leads to better living. It changes who yogis are off the mat, making their lives and their communities better. That's the real meaning of studio-to-street: taking the consciousness from practice on the mat and putting it into practice in life. OVERVIEW The Systems Administrator is responsible for managing and maintaining the organization's public cloud infra

Cleared DevOps Cloud Computing Engineer Architect

SAIC

Remote

Full-time

Job ID: 2507849 Location: REMOTE WORK, TX, US Date Posted: 2025-07-23 Category: Information Technology Subcategory: Cloud Comp Engr Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: Yes Description SAIC is seeking a highly motivated DevOps Cloud Computing Engineer Architect with an active Secret clearance to join our Cloud One team Government A1 Enclave by Cloud On

Principal Solution Architect - Oracle Cloud ERP

Mattel

El Segundo, California, USA

Full-time

Company Description CREATIVITY IS OUR SUPERPOWER. It's our heritage and it's also our future. Because we don't just make toys. We create innovative products and experiences that inspire fans, entertain audiences and develop children through play. Mattel is at its best when every member of our team feels respected, included, and heard-when everyone can show up as themselves and do their best work every day. We value and share an infinite range of ideas and voices that evolve and broaden our pers

Senior Infrastructure Engineer

Aditi Consulting

Remote or Dallas, Texas, USA

Contract

Salary: $120k - $130k/yr. Summary: Senior IT/OT Infrastructure Engineer for a contract engagement. This role requires a subject matter expert to support the convergence of our Information Technology (IT) and Operational Technology (OT) infrastructure. Food and Beverage is looking for an outstanding Infrastructure Engineer with a strong focus on IT and OT infrastructure, network security, and cloud experience to work with the Global Networks team. This role requires a subject matter expert to sup

Manager, Development Live Ops - Live Games Infrastructure Manager

Mattel

El Segundo, California, USA

Full-time

Company Description CREATIVITY IS OUR SUPERPOWER. It's our heritage and it's also our future. Because we don't just make toys. We create innovative products and experiences that inspire fans, entertain audiences and develop children through play. Mattel is at its best when every member of our team feels respected, included, and heard-when everyone can show up as themselves and do their best work every day. We value and share an infinite range of ideas and voices that evolve and broaden our pers

Systems Administrator

Apex Systems

El Segundo, California, USA

Full-time

Job#: 2037008 Job Description: Apex Systems is seeking a Systems Administrator to design, install, operate, secure and maintain dedicated Program Information Technology Infrastructure. The environment consists of multiple sites and networks with servers and High Performance Computing Clusters running Red Hat Linux in multiple locations around the U.S. and growing. Future expansion will include WNDRVR VxWorks embedded Linux operation systems. Linux and Windows servers host engineering application

Solution Engineer - Commercial

Esri

Redlands, California, USA

Full-time

Overview As a GIS subject matter expert, you're a natural at identifying the right analysis tools for the problem at hand. Not only do you create innovative solutions, you talk about solutions in ways that get others excited about the power of GIS technology. Join an account team and advise customers on their most complex business challenges. Leverage your problem-solving skills to demonstrate the value of GIS and how it finds unique patterns, trends, and understanding. At Esri, we are committ

Sr. Network Engineer Infrastructure - Network Admin, F5 Load Balancing

Kaiser Permanente

Pleasanton, California, USA

Full-time

Job Summary: This position is for a Network Administrator within the Network Services organization supporting Kaiser Permanente's F5 Load Balancing infrastructure.Kaiser Permanente operates within a ITIL framework. This position will directly support aspects within the F5 Load Balancer Network Operations. Shift flexibility required and will include working nights, weekends, Holidays. Potential candidates submitting for this position must show the ability to think both critically, creatively, in

Internship, Electrical & Computer Engineer, Self-Driving (Fall 2025)

Tesla Motors

Palo Alto, California, USA

Full-time

Consider before submitting an application: This position is expected to start around August or September 2025 and continue through the Fall term (ending approximately December 2025) or continuing into Winter/Spring 2026 if available and there is an opportunity to do so. We ask for a minimum of 12 weeks, full-time and on-site, for most internships. Our internship program is for students who are actively enrolled in an academic program. entry level candidates seeking employment after graduation a

Database Administrator – IBMi (Remote)

Vaco by Highspring

Remote

Full-time

Database Administrator IBMi (Remote) Confidential Company | Fully Remote Were seeking an experienced IBMi (DB2 for i) Database Administrator to support and manage enterprise-level database environments. This role involves performance tuning, capacity planning, data security, backup/recovery, and cross-functional collaboration with internal IT and development teams. Key Responsibilities:Maintain, optimize, and secure IBMi-based DB2 databases Support database performance, tuning, and availability

Senior Network Engineer - Remote in MN or WI

UnitedHealth Group

Remote or Plymouth, Minnesota, USA

Full-time

Opportunities at Optum, in strategic partnership with Allina Health. As an Optum employee, you will provide support to the Allina Health account. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by diversity and inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities w

(USA) Systems and Infrastructure Engineer III

Walmart Inc.

Remote or Dallas, Texas, USA

Full-time

Position Summary Join Walmart/VIZIO and take your career to the next level! The Computer Systems Engineering team is responsible for managing the Windows and macOS Operating Systems, Hardware standards and policies for the enterprise user community. This will involve escalations from support, automation of workflows, scripting, Intune administration, Jamf administration, 3rd party software configuration and working side by side with the security and network teams to bring the best user experien

Data Center Project Manager _REMOTE _networking, and data center operations (Arista) Remote

PropelSys Technologies LLC.

Texas, USA

Full-time, Part-time, Contract, Third Party

Data Center Project Manager (Arista) Remote Long term Contract Direct Client We are seeking an experienced and detail-oriented Project Manager to join our Data Center Operations team. In this role, you will lead new projects from initiation through completion, driving progress and enabling our teams to deliver high-impact results.. You'll work with a national organization that partners with a global edge-to-cloud leader-helping businesses connect, protect, analyze, and act on their data

Sales Engineer

Rewst

Remote or Tampa, Florida, USA

Full-time

Company Description: Rewst is a tool designed for Managed Service Providers (MSPs) to streamline and automate their processes, saving valuable time and effort. Our platform helps MSPs achieve big automation wins, resulting in increased productivity and efficiency. We value the flexibility of remote work and enjoy opportunities to collaborate in person on occasion. We are seeking a highly skilled Sales Engineer with a strong background in Managed Service Providers (MSP) and experience with Pyth

Remote Identity and Access Management/Privileged Access Management - Remote

Software Guidance & Assistance

Remote or Jacksonville, Florida, USA

Contract

Software Guidance & Assistance, Inc., (SGA), is searching for a Remote Identity and Access Management/Privileged Access Management - Remote for a contract assignment with one of our premier Healthcare services clients in Jacksonville, FL. This role will be remote. Responsibilities : We're looking for a highly skilled Security Engineer to join our team, with a focus on Identity and Access Management and Privileged Access Management. As a Security Engineer, you will play a critical role in des