linux / unix systems administrator Jobs in california

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Staff Software Systems Engineer, Mail and Messaging

ServiceNow, Inc.

San Diego, California, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Site Reliability Engineer II

Akamai Technologies

Cambridge, England, United Kingdom

Full-time

Do you enjoy collaborating with teams to solve complex challenges? Do you have a passion for cutting edge technologies and tackling system problems? Join our highly skilled Storage team Our team designs, deploys, and manages applications and infrastructure that supports Akamai's internal and customer-facing cloud storage platforms. We do this while maintaining Akamai's mission to make life better for billions of people, billions of times a day. Partner with the best In this role, you will c

Sr. Windows Administrator/Test Lab Manager TS/SCI Poly SAN DIEGO, CA

Leidos

San Diego, California, USA

Full-time

Come join our exciting and fast-growing National Security Group! This position is located in San Diego, CA. *You must have an active TS/SCI Polygraph up front. No exceptions.* We are hiring a Senior Windows Administrator / Test Lab Manager to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a highly complex and fast-paced program. You will be responsible for performing daily system administration and O&M support activities in support of a comple

SoC Modeling Infrastructure Architect

Samsung Electronics America

Mountain View, California, USA

Full-time

Lab Summary: The Samsung SoC Architecture Lab explores innovative SoC architecture, key IP blocks (CPU, GPU, NPU), bus / memory subsystem and multimedia subsystems for future Samsung Galaxy products (Smartphones, IoT and future devices) echoing Samsung's AI for All strategy. We are defining the high performance SoC architecture development for various Galaxy device lineups. This lab collaborates with key R&D teams around the globe and Samsung's strategic SoC partners to innovate and reinvent tec

SRE Specialist

Fortinet

Sunnyvale, California, USA

Full-time

Job Description Fortinet has an exciting opportunity for an experienced SRE Specialist to join our FortiGuard operation team. We are managing the consumer-facing services with high traffic volumes around the world. Service Reliability and Security is our top priority. This is a unique opportunity to join an established team of experienced professionals to work on some of the most innovative technology and network security products on the market. Job Responsibilities: Design and deployment of

IT Infrastructure Engineer

Samsung Electronics America

San Jose, California, USA

Full-time

Please Note: To provide the best candidate experience amidst our high application volumes, each candidate is limited to 10 applications across all open jobs within a 6-month period. Advancing the World's Technology Together Our technology solutions power the tools you use every day--including smartphones, electric vehicles, hyperscale data centers, IoT devices, and so much more. Here, you'll have an opportunity to be part of a global leader whose innovative designs are pushing the boundaries o

Cyber Security Systems Engineer

Lockheed Martin Corporation

Remote or Kirtland Air Force Base, New Mexico, USA

Full-time

Job Description What We're Doing: At Lockheed Martin Rotary and Mission Systems (RMS), we are driven by innovation and integrity. We apply the highest standards of business ethics and visionary thinking to push the boundaries of what's possible. As a Lockheed Martin employee, you will have the opportunity to contribute to groundbreaking projects that shape the future of Aerospace and Defense. We value your skills, training, and education, and we are committed to providing a supportive environm

Sr. IT Network 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. SR. IT NETWORK ENGINEER SpaceX is looking for an experienced network engineer with expertise in networking technologies that support routing, switching, dynamic multicast, Wi-Fi, network access control, automation, et

Infrastructure Service Delivery Manager

SAIC

Anaheim, California, USA

Full-time

Job ID: 2505463 Location: ANAHEIM, CA, US Date Posted: 2025-06-30 Category: Information Technology Subcategory: IT Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: None Potential for Remote Work: Yes Description Infrastructure Service Delivery Manager Anaheim, CA (On-site 4 days/week) Are you an experienced infrastructure leader who thrives in fast-paced enterprise environments? We're hiring a Servi

SRE Specialist - Infrastructure

Fortinet

Sunnyvale, California, USA

Full-time

Job Description Fortinet has an exciting opportunity for an intermediate SRE Specialist to join our FortiGuard operation team. We are managing consumer-facing services with high traffic volumes around the world. Service Reliability and Security is our top priority. This is a unique opportunity to join an established team of experienced professionals to work on some of the most innovative technology and network security products on the market. Job Responsibilities Linux Server Administration (U

SONIC - Staff, Test Framework Engineer - SS1013655

Juniper Networks

Sunnyvale, California, USA

Full-time

At Juniper, we believe the network is the single greatest vehicle for knowledge, understanding, and human advancement the world has ever known. To achieve real outcomes, we know that experience is the most important requirement for networking teams and the people they serve. Delivering an experience-first, AI-Native Network pivots on the creativity and commitment of our people. It requires a consistent and committed practice, something we call the Juniper Way. SONiC - Staff, Test Framework Eng

Senior Information Security Analyst

ServiceNow, Inc.

Remote or Orlando, Florida, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Senior Information Security Analyst

ServiceNow, Inc.

Remote or West Palm Beach, Florida, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Senior Information Security Analyst

ServiceNow, Inc.

Remote or Atlanta, Georgia, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Software Engineer Staff

Lockheed Martin Corporation

Remote or King of Prussia, Pennsylvania, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio

Senior Engineer II - DBRE

DigitalOcean

San Francisco, California, USA

Full-time

We want people who are passionate about building the infrastructure and platforms that will improve the resiliency, scaling, and development speed for cloud services. We are looking for an experienced database engineer with an operations background in building sustainable solutions for data storage and streaming platforms. Our team's mission statement is to "provide tools and expertise to solve common operational problems, accelerating and simplifying product development." As part of the team,

Embedded DevOps Engineer

ConsultNet, LLC

Hawthorne, California, USA

Full-time

Embedded DevOps Engineer Hawthorne area, CA- Hybrid Direct Hire $115k-$165k year Will design, implement, and maintain CI/CD pipelines using tools like Jenkins, and Ansible for embedded software development. Develop automated build and test frameworks for embedded environments. Deploy build environments on bare-metal hardware. Create ARM Cortex emulator environments using libvirt, qcow2, qemuWork closely with firmware, hardware, and software engineers to streamline the development lifecycle. Impl

Principal Site Reliability Engineer (DLP)

PaloAlto Networks

Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of

IT - High Performance Computing (HPC) System Administrator

ASML USA

San Diego, California, USA

Full-time

Introduction ASML US, including its affiliates and subsidiaries, bring together the most creative minds in science and technology to develop lithography machines that are key to producing faster, cheaper, more energy-efficient microchips. We design, develop, integrate, market and service these advanced machines, which enable our customers - the world's leading chipmakers - to reduce the size and increase the functionality of their microchips, which in turn leads to smaller, more powerful consum

(USA) Principal, Systems and Infrastructure Engineer, Information Security

Walmart Inc.

Remote or Denver, Colorado, USA

Full-time

Position Summary Are you ready to lead the charge in transforming our infrastructure? As a Principal, Systems and Infrastructure Engineer at Walmart/VIZIO, you will play a pivotal role in designing, building, and maintaining scalable and secure infrastructure. This is a unique opportunity to drive the migration and modernization of critical applications and systems, ensuring seamless transitions and minimal downtime. What you'll do About the Team: The Walmart/VIZIO Team is dedicated to levera