windows/linux system administrator Jobs in baltimore, md

141 - 160 of 670 Jobs

IT Application Solutions Architect (Rail or Transportation Domain)Job Title - IT Application Solutions Architect (Rail or Transportation Domain)

Allwyn CorporationCompany Name - Allwyn Corporation

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Remote

Contract, Third Party

Role: IT Application Solutions Architect-Senior Remote Contract Experience: 10+ Years Deep experience with complicated business systems (Rail or Transportation is a must!)Experience across multiple IT roles (app development, technology, data).Proven ability to work with Sr IT management to define overall strategy.Extensive Business Architecture and Application ExperienceExperience with architecture governance.Experience with a variety of architectural patterns, must include event-driven architec

Senior CyberSecurity EngineerJob Title - Senior CyberSecurity Engineer

Eliassen GroupCompany Name - Eliassen Group

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Belcamp, Maryland, USA

Contract

Description: Our client is looking for a Cleared Senior InfoSec Engineer in the Washington, DC area. Location: Washington, DC Metro Rate: $65 - $75/ hr. w2 Responsibilities: SR Cybersecurity Engineer: Bowhead is seeking a SR Cybersecurity Engineer to support its PEO C3N Contract in Aberdeen, MD. The Cybersecurity Engineer will provide a system-of-systems approach to advancing and synchronizing c security architecture associated with protecting our assets (firewalls, intrusion detection syst

Senior System Secrurity Specilaist must to have Forgerock / Sailpoint ExperienceJob Title - Senior System Secrurity Specilaist must to have Forgerock / Sailpoint Experience

Unisoft Technology IncCompany Name - Unisoft Technology Inc

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Baltimore, Maryland, USA

Contract, Third Party

A minimum of four (4) years of experience implementing, administering, and monitoring Security Controls and Governance for public-facing complex IT systems. A minimum of four (4) years of specialized experience in defining computer security requirements for high-level applications, evaluating approved security product capabilities, and developing solutions to multilevel security problems. A minimum of four (4) years of hands-on experience providing operational support for ForgeRock and Sailpoi

Systems AdministratorJob Title - Systems Administrator

Zachary Piper Solutions, LLCCompany Name - Zachary Piper Solutions, LLC

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Remote

Full-time

Piper Companies is seeking a Systems Administrator for an established healthcare organization. This is a 6-month contract and is REMOTE (based in US, must work EST). Responsibilities of the Systems Administrator: Support the remediation of Windows Server 2012 environments, including upgrade planning and execution to Azure. Maintain and administer enterprise-level Windows and Linux systems in a hybrid on-prem/cloud environment. Collaborate with vendors to manage third-party applications and navi

Systems AdministratorJob Title - Systems Administrator

Zachary Piper Solutions, LLCCompany Name - Zachary Piper Solutions, LLC

•

Remote

Full-time

Piper Companies is seeking a Systems Administrator for an established healthcare organization. This is a 6-month contract and is REMOTE (based in US, must work EST). Responsibilities Support the remediation of Windows Server 2012 environments, including upgrade planning and execution to Azure. Maintain and administer enterprise-level Windows and Linux systems in a hybrid on-prem/cloud environment. Collaborate with vendors to manage third-party applications and navigate upgrade or decommission sc

Senior Forgerock System Secrurity SpecilaistJob Title - Senior Forgerock System Secrurity Specilaist

Unisoft Technology IncCompany Name - Unisoft Technology Inc

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Baltimore, Maryland, USA

Contract, Third Party

Desktop Systems Engineer - TS/SCIJob Title - Desktop Systems Engineer - TS/SCI

General DynamicsCompany Name - General Dynamics

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Annapolis, Maryland, 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: Systems Engineering Job Qualifications: Skills: Information Systems, System Administration, Systems Engineering Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: GDIT is your place. Make it your own by bringing your ideas and unique perspectiv

System Engineer 1Job Title - System Engineer 1

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

We're searching for talented individuals who provide intelligence, engineering, and mission management expertise for the Government. This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, then come join us! Job Description: Dedicated Systems Engineer to join our GATEKEPER team, deeply embedded with developers, QA, and DevOps engineers. In this

Senior Network EngineerJob Title - Senior Network Engineer

LeidosCompany Name - Leidos

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Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Network Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vestin

System Integration Engineer - Clearance RequiredJob Title - System Integration Engineer - Clearance Required

Lockheed MartinCompany Name - Lockheed Martin

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Fort Meade, Maryland, USA

Full-time

Job ID: 687929BR Date posted: Jun. 10, 2025 Description:This position may be eligible for up to $25K sign on bonus for external hires! What We're Doing: Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon each minute: Financial assets

System Integration Engineer - Clearance RequiredJob Title - System Integration Engineer - Clearance Required

Lockheed MartinCompany Name - Lockheed Martin

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Fort Meade, Maryland, USA

Full-time

IT Analyst SpecialistJob Title - IT Analyst Specialist

Johns Hopkins University AppliedPhysicsLaboratoryCompany Name - Johns Hopkins University AppliedPhysicsLaboratory

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Laurel, Maryland, USA

Full-time

Description Do you want to be empowered to take ownership and stake in the overall engineering and operations of the IT infrastructure? Are you interested in learning new technologies and creating new IT capabilities? If so, we 're looking for someone like you to join our team at APL. We are ranked as one of Computerworld 's Top Places to Work in IT 6 years running, and we are seeking a dedicated IT Support/Jr. Systems Administrator to help us protect APL 's information technology infrastruct

Red Hat Enterprise Linux (RHEL) Administrator - Security Clearance RequiredJob Title - Red Hat Enterprise Linux (RHEL) Administrator - Security Clearance Required

MaximusCompany Name - Maximus

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Maryland, USA

Full-time

General information Job Posting Title Red Hat Enterprise Linux (RHEL) Administrator Date Thursday, June 5, 2025 City Annapolis Junction State MD Country United States Working time Full-time Description & Requirements Maximus is seeking an accomplished Red Hat Enterprise Linux Administrator to provide expertise in managing and optimizing assets for our federal client's critical operations. As a Red Hat Enterprise Linux Admin, you will be responsible for managing and maintaining the RHEL infrastru

Red Hat Enterprise Linux (RHEL) Administrator - Secret Clearance RequiredJob Title - Red Hat Enterprise Linux (RHEL) Administrator - Secret Clearance Required

MaximusCompany Name - Maximus

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Maryland, USA

Full-time

Senior Systems Engineer Level_IVJob Title - Senior Systems Engineer Level_IV

General DynamicsCompany Name - General Dynamics

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Laurel, 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: Complex Systems, Information Technology (IT) Systems, Linux, Systems Design, Systems Engineering Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: The Senior Systems Engineer IV shall

Mid-Level Capabilities Development EngineerJob Title - Mid-Level Capabilities Development Engineer

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Maryland, USA

Full-time

Type of Requisition: Pipeline 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: Engineering (General) Job Qualifications: Skills: C Sharp (Programming Language), Development Software, Embedded Software, Embedded Systems Certifications: None Experience: 0 + years of related experience ship Required: Yes Job Description: Designs, develops, tests and evaluates e

Test EngineerJob Title - Test Engineer

BlueHaloCompany Name - BlueHalo

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Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company, we don't test to check a box-we test to guarantee mission success. From secure environments to complex enterprise systems, our testers sit side-by-side with developers and systems engineers to ensure every feature, every update, and every release meets the highest standard. We're growing our test team and we need someone ready to take ownership of automated testing in Agile DevOps pipelines. If you're skilled with Selenium, Python, and CI/CD frameworks-and can design

Systems Administrator with Network Skills - Clearance RequiredJob Title - Systems Administrator with Network Skills - Clearance Required

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Annapolis, Maryland, USA

Full-time

Job Description This position is participating in our External Referral Program. If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you'll receive a payment! code-extrefer Senior Systems Network Administrator - Clearance Required WHAT WE'RE DOING Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. As a Senior Systems Network Administrator, you'll be empowered to create "new realities"

Red Hat Enterprise Linux (RHEL) AdministratorJob Title - Red Hat Enterprise Linux (RHEL) Administrator

MaximusCompany Name - Maximus

•

Maryland, USA

Full-time

Mid-Level Capabilities Development EngineerJob Title - Mid-Level Capabilities Development Engineer

General DynamicsCompany Name - General Dynamics

•

Maryland, USA

Full-time