Entry Level Security Administrator Jobs in San Jose, CA

21 - 40 of 979 Jobs

Linux Systems Administrator, Sr / Secret / Onsite: Sunnyvale, CAJob Title - Linux Systems Administrator, Sr / Secret / Onsite: Sunnyvale, CA

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Sunnyvale, California, USA

Full-time

Job Description Join our Lockheed Martin team! Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed martin has employees based in all 50 states and more than 570 facilities that span more than 70 countries. We are hiring a Linux System Adminis

Senior Staff Software Engineer (Cloud NW & AI Security)Job Title - Senior Staff Software Engineer (Cloud NW & AI Security)

PaloAlto NetworksCompany Name - PaloAlto Networks

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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

Senior Security Engineer - MAI Data, Privacy, and Security, Microsoft AI - CopilotJob Title - Senior Security Engineer - MAI Data, Privacy, and Security, Microsoft AI - Copilot

Microsoft CorporationCompany Name - Microsoft Corporation

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Mountain View, California, USA

Full-time

Microsoft is at the forefront of AI innovation, tackling some of the most complex and significant AI challenges of our time. Our vision is ambitious-to deliver systems with genuine artificial intelligence capabilities across agents, applications, services, and infrastructure. The Security Engineering team within MAI ensures our advancements in AI are secure and trustworthy. We integrate robust security measures directly into our platforms, enabling secure and efficient incorporation of external

Cybersecurity - Information System Security Manager (ISSM)Job Title - Cybersecurity - Information System Security Manager (ISSM)

Boeing CompanyCompany Name - Boeing Company

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Mountain View, California, USA

Full-time

Cybersecurity - Information System Security Manager (ISSM) Company: The Boeing Company The Boeing Company is currently seeking a Cybersecurity - Information System Security Manager (ISSM) to join the team in Mountain View, CA. The selected candidate will rely on cybersecurity and Information Assurance (IA) background to be a technical leader and support Enterprise activities and Boeing customers throughout multiple classified computing domains. The ISSM is responsible for ensuring all Informat

IT Systems Administrator ONLY W2Job Title - IT Systems Administrator ONLY W2

Aziro Technologies LLCCompany Name - Aziro Technologies LLC

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Palo Alto, California, USA

Contract

We're seeking a motivated and detail-oriented System Administrator to join our growing IT team here at Rubrik. This role is ideal for someone with approximately 3 years of hands-on experience in system administration, eager to expand their skills across a diverse technology stack and contribute to the stability and performance of our critical infrastructure. This position will report to the Director of Global IT and you'll play a key role in maintaining our systems, supporting our users, and ass

Offensive Security EngineerJob Title - Offensive Security Engineer

VeearCompany Name - Veear

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Sunnyvale, California, USA

Contract

OSCP CertificationYou are a highly skilled Offensive Security Engineer with deep expertise in application security, penetration testing, and exploit developmentThis role will focus on reviewing source code, identifying security flaws, and developing exploits to test internal systemsIn this role, you'll be responsible for executing offensive security assessments and penetration testing strategiesYou'll work closely with development and security teams to uncover vulnerabilities and improve securit

IT Systems AdministratorJob Title - IT Systems Administrator

Aziro Technologies LLCCompany Name - Aziro Technologies LLC

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Palo Alto, California, USA

Contract

Job Description Job Title: IT Systems Administrator Location: Palo Alto CA We're seeking a motivated and detail-oriented System Administrator to join our growing IT team. This role is ideal for someone with approximately 3 years of hands-on experience in system administration, eager to expand their skills across a diverse technology stack and contribute to the stability and performance of our critical infrastructure. This position will report to the Director of Global IT and you'll play a key ro

Information Systems Security Officer (ISSO) III - Ramstein, GermanyJob Title - Information Systems Security Officer (ISSO) III - Ramstein, Germany

General DynamicsCompany Name - General Dynamics

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Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Information Security Job Qualifications: Skills: Information Security, Information Security Management, Information System Security Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Location: Ramstein, Germany The Information Systems Security

Staff Software Engineer (Cloud NW & AI Security)Job Title - Staff Software Engineer (Cloud NW & AI Security)

PaloAlto NetworksCompany Name - PaloAlto Networks

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Santa Clara, California, USA

Full-time

Senior Network Security Engineer - USDSJob Title - Senior Network Security Engineer - USDS

TikTokCompany Name - TikTok

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San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A95908A Apply to this job Share this listing: Responsibilities Team Intro You will be a part of the Network Security Operations team responsible for Cyber Defense and Engineering. The Network Security Operations team's primary focus is management of security and defense platforms, technologies, tools, and services supporting security controls across TikTok's environments. As a Network Security Operations Specialist, you will be resp

Linux / Unix Systems Administrator, Stf - TS/SCI w/Poly- Sunnyvale, CAJob Title - Linux / Unix Systems Administrator, Stf - TS/SCI w/Poly- Sunnyvale, CA

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Sunnyvale, California, USA

Full-time

Job Description About Us: Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span more than 70 countries. This Lockheed Martin Enterprise Operations (EO) position w

Sr. Security Operations Engineer for HOT Data Start-up in Mountain View, CAJob Title - Sr. Security Operations Engineer for HOT Data Start-up in Mountain View, CA

OSI Engineering, Inc.Company Name - OSI Engineering, Inc.

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Mountain View, California, USA

Full-time

Join a rapidly growing data start-up specializing in data value engineering as a Sr. Security Operations Engineer and play a key role in securing our cloud-hosted applications while ensuring compliance with industry standards. Our innovative platform offers a comprehensive approach to data management, covering collection, analysis, packaging, visualization, and exchange. Designed for flexibility and integration, our system empowers organizations and individuals to take control of their data, rec

Senior Enterprise Security Engineer (InfoSec)Job Title - Senior Enterprise Security Engineer (InfoSec)

PaloAlto NetworksCompany Name - PaloAlto Networks

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Santa Clara, California, USA

Full-time

Staff SOC Security EngineerJob Title - Staff SOC Security Engineer

PaloAlto NetworksCompany Name - PaloAlto Networks

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Santa Clara, California, USA

Full-time

Company Description To comply with U.S. federal government requirements, U.S. citizenship is required for this position 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 ar

Lead Product Security EngineerJob Title - Lead Product Security Engineer

Johnson & JohnsonCompany Name - Johnson & Johnson

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Remote or Santa Clara, California, USA

Full-time

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

Information System Security Officer, Classified CybersecurityJob Title - Information System Security Officer, Classified Cybersecurity

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Sunnyvale, California, USA

Full-time

Job Description A Final Secret clearance is required. Classified Cybersecurity ISSOs help secure lifesaving products and critical state-of-the-art engineering and manufacturing systems by applying cutting edge cybersecurity principles. Rising to the challenge of building a more secure world for the warfighter, space exploration, climate sustainability and commercial use. This position will perform duties as a Information Systems Security Officer at the Lockheed Martin Space facility in Sunnyv

Web Security Engineer, TikTok Anti-AutomationJob Title - Web Security Engineer, TikTok Anti-Automation

TikTokCompany Name - TikTok

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San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A109676 Apply to this job Share this listing: Responsibilities The Business Risk Integrated Control (BRIC) team is missioned to: - Protect TikTok users, including and beyond content consumers, creators, advertisers; - Secure platform health and community experience authenticity; - Build infrastructures, platforms and technologies, as well as to collaborate with many cross-functional teams and stakeholders. The BRIC team works to min

Staff Security EngineerJob Title - Staff Security Engineer

Cadence Design Systems IncCompany Name - Cadence Design Systems Inc

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San Jose, California, USA

Full-time

At Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology. This role allows to manage and optimize security devices like Palo Alto /Checkpoint Firewalls/Cisco VPN, micro segmentation of critical assets, automation of workflows as well as periodic audit for various Network security functions. Threat aggregation, and effectively mitigating them on the Firewalls in coordination with SOC team. We're doing work that matters. Help us solve what othe

Sr Staff Software Engineer (NGFW System Infrastructure and Platform Security)Job Title - Sr Staff Software Engineer (NGFW System Infrastructure and Platform Security)

PaloAlto NetworksCompany Name - PaloAlto Networks

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Santa Clara, California, USA

Full-time

Information Systems Security Engineer (ISSE)Job Title - Information Systems Security Engineer (ISSE)

RTX CorporationCompany Name - RTX Corporation

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San Jose, California, USA

Full-time

Date Posted: 2025-06-25 Country: United States of America Location: CA827: 100 Headquarters Dr San Jose 100 Headquarters Drive , San Jose, CA, 95134 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: TS/SCI Applied Signal Technology (AST) is seeking an Information Systems Security Engineer who strives for excellence and