Network Security Administrator Jobs

621 - 640 of 2,073 Jobs

Network EngineerJob Title - Network Engineer

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

We are seeking a Network Engineer who is responsible for the design, configuration, maintenance, and optimization of enterprise network environments. This role supports multiple network domains and plays a key part in ensuring secure, reliable, and high-performance connectivity across the organization. The engineer collaborates closely with cybersecurity, systems, and application teams to ensure seamless infrastructure integration and compliance with federal and DoD standards. Leads troubleshoot

Network Security Engineer (WAF) - North Central (Remote in the U.S.)Job Title - Network Security Engineer (WAF) - North Central (Remote in the U.S.)

GuidePoint SecurityCompany Name - GuidePoint Security

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Remote

Full-time

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation's top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk. We are looking for a Network Security Enginee

Senior Information Security Systems Engineer - Vice President (Hybrid)Job Title - Senior Information Security Systems Engineer - Vice President (Hybrid)

CitiCompany Name - Citi

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Remote or Irving, Texas, USA

Full-time

Overview of the Role: Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. As a bank with a brain and a soul, Citi creates economic value that i

Systems Security EngineerJob Title - Systems Security Engineer

SAICCompany Name - SAIC

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Beltsville, Maryland, USA

Full-time

Job ID: 2508107 Location: BELTSVILLE, MD, US Date Posted: 2025-07-31 Category: Cyber Subcategory: Cybersecurity Ops Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a highly motivated Systems Security Engineer. The successful candidate will provide support to the Cybersecurity Integrity Center in the Department of State Bureau of Diplomatic Technol

Product Security Engineer - Ground SegmentJob Title - Product Security Engineer - Ground Segment

Boeing CompanyCompany Name - Boeing Company

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Berkeley, Missouri, USA

Full-time

Product Security Engineer - Ground Segment Company: The Boeing Company The Boeing Defense, Space & Security (BDS) Air Dominance (AD) Product Security Engineering (PSE) organization is seeking an Associate, Experienced, and/or Senior level Product Security Engineer - Ground Segment in Berkeley, MO to provide technical support for product cyber security and resiliency engineering for all phases of the hardware design and development lifecycle including requirements and interface definition, arch

Product Security R&D EngineerJob Title - Product Security R&D Engineer

Lincoln ElectricCompany Name - Lincoln Electric

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Euclid, Ohio, USA

Full-time

Lincoln Electric is the world leader in the engineering, design, and manufacturing of advanced arc welding solutions, automated joining, assembly and cutting systems, plasma and oxy-fuel cutting equipment, and has a leading global position in brazing and soldering alloys. Lincoln is recognized as the Welding Expert for its leading materials science, software development, automation engineering, and application expertise, which advance customers' fabrication capabilities to help them build a bet

Product Security R&D EngineerJob Title - Product Security R&D Engineer

Lincoln ElectricCompany Name - Lincoln Electric

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Euclid, Ohio, USA

Full-time

Cybersecurity EngineerJob Title - Cybersecurity Engineer

American Systems CorporationCompany Name - American Systems Corporation

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Middletown, Rhode Island, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities Participate in Cybersecurity assessments to include conducting residual risk analysis and compiling Risk Management Framework for DoD IT artifacts.Research and recommend cybersecurity architectures and procedure

Junior Security Development EngineerJob Title - Junior Security Development Engineer

PepsicoCompany Name - Pepsico

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Plano, Texas, USA

Full-time

Overview PepsiCo's Global Emerging Technologies Security Team is responsible for building and operationalizing security solutions in emerging technology areas like containers, API, AI/ML. Our mission is to effectively and efficiently make security risks visible to the business and actionable by them. Within the Cyber Fusion Center, the Emerging Technologies Security Team is looking for a motivated Entry-Level Information Security Analyst. This role demands hands-on coding experience. Candidate

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

SCITLS On-Prem System Administrator - Flexera, Titus, Open TextJob Title - SCITLS On-Prem System Administrator - Flexera, Titus, Open Text

General DynamicsCompany Name - General Dynamics

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Offutt Air Force Base, Nebraska, USA

Full-time

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: Systems Administration Job Qualifications: Skills: Business Continuity, Critical Systems, Disaster Recovery (DR) Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: USSTRATCOM is a Combatant Command responsible for strategic deterrence, nuclear operations, and e

Enterprise AnalystJob Title - Enterprise Analyst

HalvikCompany Name - Halvik

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Alexandria, Virginia, USA

Full-time

Halvik Corp delivers a wide range of services to 13 executive agencies and 15 independent agencies. Halvik is a highly successful WOB business with more than 50 prime contracts and 500+ professionals delivering Digital Services, Advanced Analytics, Artificial Intelligence/Machine Learning, Cyber Security and Cutting Edge Technology across the US Government. Be a part of something special! Halvik is seeking a mid-level Enterprise Analyst, who can work flexible shifts throughout the week and one (

FLEX Cloud Infrastructure Security Automation EngineerJob Title - FLEX Cloud Infrastructure Security Automation Engineer

Marriott InternationalCompany Name - Marriott International

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Bethesda, Maryland, USA

Full-time

Job Description This is a temporary position. CLOUD INFRASTRUCTURE SECURITY AUTOMATION ENGINEER Experience in securing Windows and Linux through hardening components according to CIS benchmark or similar standards Demonstrable expertise in DevOps engineering, systems engineering, with a background in computer science and/or software development Demonstrable skill in DevOps automation, GitOps, and pipeline development using tools like Jenkins or Harness, Git, and Ansible Script development expe

Senior Network Systems Engineer Train Control and SCADA OperationsJob Title - Senior Network Systems Engineer Train Control and SCADA Operations

Randstad DigitalCompany Name - Randstad Digital

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Philadelphia, Pennsylvania, USA

Contract

job summary: Randstad is seeking a highly experienced Senior Network Systems Engineer to support and maintain mission-critical Train Control and SCADA systems for a major transportation client in Philadelphia, PA. This role involves administering and upgrading network infrastructure, RedHat and Windows-based systems, and ensuring 24/7 availability and cybersecurity of real-time train control operations. The ideal candidate has deep experience with SCADA environments, network architecture, and i

Network Field EngineerJob Title - Network Field Engineer

Microtek Staffing ServicesCompany Name - Microtek Staffing Services

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New York, New York, USA

Contract

Job Title : Network Field Engineer Job Location : Manhattan, NY Job duration : 6 month Job Description: 3 5 years of hands-on experience in IT support, systems administration, or network support (MSP experience highly preferred).Strong knowledge of Windows Server environments, Active Directory, DNS/DHCP, and Group Policy.Proficient with Microsoft 365, Azure AD, Intune, Teams, SharePoint, and Exchange Online.Experience with endpoint management tools (e.g., RMM platforms like ConnectWise Automate,

Splunk Systems Engineer - TS/SCI w/PolyJob Title - Splunk Systems Engineer - TS/SCI w/Poly

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Maryland, USA

Full-time

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: Systems Engineering Job Qualifications: Skills: Enterprise Technologies, SIEM Tools, Splunk (Inactive) Certifications: None Experience: 2 + years of related experience ship Required: Yes Job Description: Splunk Systems Engineer Deliver simple solutions to complex problems as a Spl

Splunk Systems Engineer - TS/SCI w/PolyJob Title - Splunk Systems Engineer - TS/SCI w/Poly

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Maryland, USA

Full-time

Lead, Security Research Engineer - FL - TS/SCIJob Title - Lead, Security Research Engineer - FL - TS/SCI

Harris CorporationCompany Name - Harris Corporation

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Melbourne, Florida, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Sr. Security Architect (Hybrid)- Richmond, VA (Webcam Interview). Need only localsJob Title - Sr. Security Architect (Hybrid)- Richmond, VA (Webcam Interview). Need only locals

HSK Technologies, Inc.Company Name - HSK Technologies, Inc.

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Richmond, Virginia, USA

Contract, Third Party

Job Title: Security Architect (Hybrid) Location: Richmond, VA (Webcam Interview). Duration: Long-Term Contract. Note:In-depth knowledge of NIST 800-53 and other relevant security frameworks to ensure compliance with COV SEC530. Job Overview: We are seeking a highly experienced Security Architect to support the development of System Security Plans (SSPs) for enterprise applications and third-party suppliers. This role involves working closely with business units to assess current security posture

Cyber Systems Security Engineer Staff - Skunk Works - Level 4Job Title - Cyber Systems Security Engineer Staff - Skunk Works - Level 4

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Palmdale, California, USA

Full-time

Job Description The Cyber Systems Security Engineer Staff will be responsible for leading a team of fellow engineers in the designing, assembly, integration, and maintenance of System Integration Lab (SIL), particularly focusing on network planning, hardware installation, software integration support, verification, and validation of system functionality. In addition to designing and building the SIL the applicant will be responsible for ensuring the SIL is NIST/RMF/JSIG compliant and assist in