Senior IT Systems Administrator jobs in San Jose, CA

Senior IT Systems Engineer - Public Sector

Remote or Texas

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Today

Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high-performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities. At Lumen, you'll work on infrastructure customers rely on today and build for what's next, where performance, security, and resilience matter. This is a high accountability environment where bold ideas drive

Full-time

USD 93,092.00 - 124,122.00 per year

Sr IT Systems Engineer - PUB SEC

Remote or Colorado

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Today

Full-time

USD 88,860.00 - 118,480.00 per year

Sr. Systems Administrator

San Jose, California

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Today

Job Title: Senior Infrastructure Systems Engineer (Azure & Hybrid Cloud) Role Overview We are seeking a highly technical, hands-on Senior Infrastructure Systems Engineer to anchor our Corporate IT Infrastructure team. This is a critical individual-contributor role for a subject matter expert who prefers designing and deploying enterprise systems over people management. You will serve as the technical lead for a large-scale cloud modernization initiative, driving the migration, architecture, and

Full-time

USD 126,000.00 - 166,000.00 per year

Senior ERP Systems Administrator

Sunnyvale, California

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Today

Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. This architecture allows Cerebras to deliver industry-leading training and inference speeds; over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation. Cerebras works with the leading model labs, global enterprise

Full-time

Sr. IT Support Administrator

Santa Clara, California

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Today

About SiTime SiTime Corporation is the precision timing company. Our semiconductor MEMS programmable solutions offer a rich feature set that enables customers to differentiate their products with higher performance, smaller size, lower power and better reliability. With more than 3 billion devices shipped, SiTime is changing the timing industry. For more information, visit ;br> Job Summary The Senior IT Support Administrator provides advanced technical support and systems administration for en

Full-time

USD 115,000.00 - 158,000.00 per year

Senior Systems Administrator (Australia) - TS/SCI with Polygraph

Hayward, California

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux, System Administration, Windows Applications Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is seeking an IT Engine

Full-time

USD 97,750.00 - 132,250.00 per year

Systems Administrator

San Jose, California

•

Today

Title: Systems Administrator Location: San Jose, CA Job Type: Full-Time Work Model: Onsite Requirement: Bilingual Proficiency in English & Korean (Written & Spoken) About SK hynix America At SK hynix America, we're at the forefront of semiconductor innovation, developing advanced memory solutions that power everything from smartphones to data centers. As a global leader in DRAM and NAND flash technologies, we drive the evolution of advancing mobile technology, empowering cloud computing, an

Full-time

USD 85,000.00 - 130,000.00 per year

Senior IT Support Engineer

Mountain View, California

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Today

At Commure, we're building the AI Operating System for healthcare, the foundation that defines how care is delivered, documented, and financed. Our platform spans the full care journey: Ambient AI and Dictation eliminating documentation burden at the point of care, intelligent Agents automating patient and revenue workflows, and autonomous RCM processing billions in claims, all on a single AI-native platform integrated with 60+ EHRs. Healthcare carries a $1 trillion administrative burden and we

Full-time

USD 80,000.00 - 100,000.00 per year

IT Director, Commercial Systems - Shockwave Medical

Santa Clara, California

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Today

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn m

Full-time

USD 172,000.00 - 297,850.00 per year

Systems Engineer II, AI Solutions & IT Operations

Palo Alto, California

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Today

Woven by Toyota is enabling Toyota's once-in-a-century transformation into a mobility company. Inspired by a legacy of innovating for the benefit of others, our mission is to challenge the current state of mobility through human-centric innovation - expanding what "mobility" means and how it serves society. Our work centers on four pillars: AD/ADAS, our autonomous driving and advanced driver assist technologies; Arene, our software development platform for software-defined vehicles; Woven City,

Full-time

USD 112,000.00 - 184,000.00 per year

IT Infrastructure Systems Engineer

Milpitas, California

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Today

Onto Innovation is a leader in process control, combining global scale with an expanded portfolio of leading-edge technologies that include: 3D metrology spanning the chip from nanometer-scale transistors to micron-level die-interconnects; macro defect inspection of wafers and packages; metal interconnect composition; factory analytics; and lithography for advanced semiconductor packaging. Our breadth of offerings across the entire semiconductor value chain helps our customers solve their most d

Full-time

USD 108,000.00 - 162,000.00 per year

Sr. IT Project Manager - Shockwave Medical

Santa Clara, California

•

Today

Full-time

USD 13.00 per hour

Senior Engineering IT Engineer

Santa Clara, California

•

Today

Company: Qualcomm Incorporated Job Area: Information Technology Group, Information Technology Group > IT Engineering General Summary: This individual independently plans, performs the moderately-defined responsibility of IT functions such as design, analysis, evaluation, testing, debugging and implementation of applications programs supporting company business processes and operations. Analyzes, installs, acquires, modifies and supports operating systems, database or utilities software. Plans

Full-time

USD 73.47 - 79.09 per hour

Senior Backup Architect / Engineer ( IT Infrastructure - Cloud & Data Center )

San Jose, California

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Today

Senior Backup Architect / Engineer ( IT Infrastructure - Cloud & Data Center )1 Job Description: Senior Backup Architect / Engineer Level: Senior Individual Contributor / Architect Function: IT Infrastructure - Cloud & Data Center Experience: 10+ Years Additional Locations : United States (Remote) About the Role We are looking for a seasoned Senior Backup Architect / Engineer to lead the design, evaluation, and migration of enterprise backup and data protection solutions. This role is critica

Full-time

Senior IT Sourcing / Procurement Manager

Hybrid in Palo Alto, California

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22d ago

Job title: Senior IT Sourcing / Procurement Manager Location: Palo Alto, CA (Hybrid) Work Model Hybrid: 3 days onsite (Monday - Wednesday)Location: Palo Alto HQRole Summary We are seeking a highly analytical and commercially driven IT sourcing professional with strong deal financial expertise to lead strategic sourcing initiatives. This role requires deep experience in financial evaluation of technology deals, alongside procurement execution, to deliver optimized business outcomes. Key Responsi

Easy Apply

Contract

Depends on Experience

Hardware Systems Administrator (Linux)

Sunnyvale, California

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10d ago

Role: Hardware Systems Administrator (Linux) Location:Sunnyvale, CA - Onsite Experience: 5+ years Focus: Linux, Server Hardware & Infrastructure Key Requirements: Strong Linux administration experience (RHEL, Ubuntu, CentOS, Rocky Linux) Hands-on server hardware installation, configuration, upgrades, and troubleshooting Bash/Shell/Python scripting and automation Experience with storage, RAID, SAN/NAS, backups, and virtualization (VMware/KVM/Hyper-V) Strong networking knowledge: TCP/IP, DNS,

Easy Apply

Contract, Third Party

$70 - $75

Linux Systems Administrator (Hardware)

Sunnyvale, California

•

Today

Job Description: Linux Systems Administrator (Hardware) Location: Sunnyvale, CA Onsite Duration: Long Term Position Summary We are seeking a hands-on Hardware Systems Administrator with strong Linux administration skills, scripting expertise, and experience installing, configuring, and supporting server hardware and infrastructure. Consultant will be responsible for maintaining physical and virtual Linux environments, troubleshooting hardware issues, automating administrative tasks, and ensuring

Easy Apply

Third Party, Contract

Depends on Experience

Senior IT Desktop Support Technician

Menlo Park, California

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Today

A Rare Opportunity to Shape the Future of Genomics Join a team of brilliant, passionate innovators determined to transform healthcare. At BillionToOne, we've built a category-defining, publicly traded company on Nasdaq where transparency fuels trust, collaboration drives breakthroughs, and every contribution moves the needle on our mission to make life-changing diagnostics accessible to all. We don't just aim for incremental improvements; we build products that are 10x better than anything that

Full-time

USD 145,591.00 per year

IT System Administrator 1/2 (Jr/Sr Full Stack Application Developer - 02-6617)

Remote or Anchorage, Alaska

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Today

Salary: $3,336.75 - $4,001.25 Biweekly Location : Anchorage or Juneau, AK Job Type: Full Time Remote Employment: Flexible/Hybrid Job Number: 54957 Department: Administration Division: Office of Information Technology Opening Date: 08/14/2026 Closing Date: 8/24/2026 5:00 PM Alaska Position Open To: Alaska Residents Only Bargaining Unit: General Government Range: 21/23 Job Description This position is open to Alaska Residents only. Please check our residency definition to determine if you qualify.

Full-time

USD 3,336.75 - 4,001.25 per week

Senior System Administrator (MSO)

Livermore, California

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: IT Networking, Networking, Solarwinds, Wireshark Certifications: CompTIA Security+ CE | CompTIA - CompTIA Experience: 8 + years of related experience ship Required: Yes Job Description: Systems Administrator/Mission Support Operator - $10K Sign-on bo

Full-time

USD 111,155.00 - 150,385.00 per year

Senior IT Systems Administrator jobs in San Jose, CA, USA