UNIX/Windows Platform Engineer Jobs in Baltimore, MD

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Information Security Engineer

Zachary Piper Solutions, LLC

Columbia, Maryland, USA

Full-time

Piper Companies is seeking a dynamic Security Engineer for a hybrid (3 days onsite) role located in Columbia, MD. You will be responsible for safeguarding the Software Development Life Cycle (SDLC), as well as implementing and maintaining information security controls and countermeasures to ensure robust protection for a pioneering healthcare team. Requirements of the Security Engineer: Perform security functions including IAM, vulnerability scanning, light pen testing, and daily review of sec

CNO Developer - TS/SCI FSP

Mission Box Solutions

Annapolis, Maryland, USA

Full-time

Our client is seeking a CNO Developer to support a U.S. Government customer by providing technical expertise for mission-critical software and systems. This full-time position involves designing, developing, testing, and maintaining custom capabilities across various platforms in support of a large government contract. Responsibilities: Work as part of a team of developers on Unix, Windows, or Mobile capabilities, contributing to the design, development, testing, and maintenance of CNO capabili

System Administrator Level 3

General Dynamics Information Technology

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 Administration Job Qualifications: Skills: Linux, ServiceNow Platform, Unix Certifications: None Experience: 15 + years of related experience ship Required: Yes Job Description: Provides support for implementation, troubleshooting and maintenance of information Technology (I

System Administrator Level 3

General Dynamics Information Technology

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 Administration Job Qualifications: Skills: Linux, ServiceNow Platform, Unix Certifications: None Experience: 15 + years of related experience ship Required: Yes Job Description: Provides support for implementation, troubleshooting and maintenance of information Technology (

System Admin III- FS Poly

Dunhill Professional Search

Fort Meade, Maryland, USA

Full-time

System Administrator Clearance Level: TS/SCI w/FS Poly Required* Responsible for unique or complex information systems and/or information technology projects across more than one discipline, such as application support, database administration, software quality assurance/quality control, software engineering, network telecommunications, and infrastructure operations of administration, analysis, engineering and design. Provides direction to other IT Administrators on the project in a senior ad

Information Security Engineer

Zachary Piper Solutions, LLC

Columbia, Maryland, USA

Full-time

Piper Companies is seeking a dynamic Security Engineer for a hybrid (3 days onsite) to join a pioneering healthcare team located in Columbia, MD. Responsibilities of the Security Engineer: Perform security functions including IAM, vulnerability scanning, light pen testing, and daily review of security reports and systems. Generate internal threat intelligence and conduct threat hunting to enhance the security stack. Ensure adherence to information security policies and procedures and monit

Senior ServiceNow Systems Administrator

SAIC

Maryland, USA

Full-time

Job ID: 2504648 Location: ANNAPOLIS JUNCTION, MD, US Date Posted: 2025-04-15 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: No Description SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program! In this role you will do many different things

Expert CNO Software Developer

ManTech

Maryland, USA

Full-time

ManTech is seeking a motivated, career and customer-oriented Expert CNO Software Developer to join our team in Hanover, MD. As a valued member of our organization, you will play a pivotal role in developing advanced cyber capabilities while delivering exceptional service to our clients. Responsibilities include, but are not limited to: Design and develop new hardware or software based CNO capabilities.Manage the designing, developing, documenting, testing, and debugging of applications software

Expert CNO Software Developer

ManTech

Maryland, USA

Full-time

ManTech is seeking a motivated, career and customer-oriented Expert CNO Software Developer to join our team in Hanover, MD. As a valued member of our organization, you will play a pivotal role in developing advanced cyber capabilities while delivering exceptional service to our clients. Responsibilities include, but are not limited to: Design and develop new hardware or software based CNO capabilities.Manage the designing, developing, documenting, testing, and debugging of applications software

Lead CNO Software Developer

ManTech

Maryland, USA

Full-time

ManTech is seeking a motivated, career and customer oriented Lead CNO Developer to join our team in Hanover, MD. Responsibilities include, but are not limited to: Design and develop new hardware or software based CNO capabilities.Independently contribute to the designing, developing, documenting, testing, and debugging of applications software and systems.Apply senior level knowledge of security concepts and networks.Provide guidance to other CNO developers on the team.Ensure software standards

ServiceNow Systems Administrator

SAIC

Maryland, USA

Full-time

Job ID: 2504643 Location: ANNAPOLIS JUNCTION, MD, US Date Posted: 2025-04-17 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: No Description SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program! In this role you will do many different things

Lead CNO Software Developer

ManTech

Maryland, USA

Full-time

ManTech is seeking a motivated, career and customer oriented Lead CNO Developer to join our team in Hanover, MD. Responsibilities include, but are not limited to: Design and develop new hardware or software based CNO capabilities.Independently contribute to the designing, developing, documenting, testing, and debugging of applications software and systems.Apply senior level knowledge of security concepts and networks.Provide guidance to other CNO developers on the team.Ensure software standards

Senior Systems Administrator

CACI International, Inc.

Annapolis, Maryland, USA

Full-time

Senior Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: CACI is seeking a Senior Linux Systems Administrator to provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems, manage IT system infrastructure and any processes related to these syste

DevOps Systems Administrator, TS/SCI with a Full Scope Polygraph Security Clearance is Required - G

Next Step Systems

Maryland, USA

Full-time

DevOps Systems Administrator, TS/SCI with a Full Scope Polygraph Security Clearance is Required, Annapolis Junction, MD The DevOps Systems Administrator must have 10 years of experience as a Systems Administrator. The DevOps Systems Administrator must have an active TS/SCI with a Full Scope Polygraph Security Clearance. This position is 100% Onsite and not Remote. DevOps Systems Administrator Responsibilities: - Provide support for implementation, troubleshooting and maintenance of Information

Sr. Linux/Windows Systems Administrator - Linthicum MD - SECRET and higher - F-22, Keystone, Triton Programs - 14352

ASD, Inc.

Linthicum Heights, Maryland, USA

Contract

Sr. Linux/Windows Systems Administrator to join its Classified Solutions team in Linthicum, MD. As a member of the classified solutions, IT you ll work in a fast-paced team environment alongside engineers and program managers to help support and make our technologies a reality. This position will serve on-site at our Linthicum, MD campus; this is not a remote work opportunity. Responsibilities: Perform as a Linux/Redhat Systems Administrator for a classified government contract. Perform as a Wi

EXPERT COMPUTER NETWORK OPERATIONS DEVELOPER

ManTech

Fort Meade, Maryland, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Expert Computer Network Operations (CNO) Developer IV to join our team in Fort Meade, MD. Responsibilities include, but are not limited to: Leads the designing, developing, documenting, testing, debugging and maintenance of hardware or software based CNO capabilities. Ensure effective communication coordination and transparency with leadership and customers. Responsible for ensuring software standards meet network and security requirements.

Senior Software Engineer (Vulnerability Analyst)

Leidos

Odenton, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Windows Vulnerability Analyst 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 imm

Software Developer Cyber - SWE 3

Lockheed Martin Corporation

Maryland, USA

Full-time

Job Description This position may be eligible for a $25K sign on bonus for external hires! What We're Doing: Lockheed Martin, 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. You'll develop innovative offensive cyber capabilities that help protect the nation and the world. Cyber Lockheed Martin Who we are: Are you driven by the thrill of outsmarting even the most advanced security systems and

Software Cyber Engineer - SWE 2

Lockheed Martin Corporation

Maryland, USA

Full-time

Job Description This position may be eligible for a $25K sign on bonus for external hires! What We're Doing: Lockheed Martin, 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. You'll develop innovative offensive cyber capabilities that help protect the nation and the world. Cyber Lockheed Martin Who We Are: Are you driven by the thrill of outsmarting even the most advanced security systems and

Software Cyber Engineer - SWE 1

Lockheed Martin Corporation

Maryland, USA

Full-time

Job Description This position may be eligible for a $25K sign on bonus for external hires! What We're Doing: Lockheed Martin, 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. You'll develop innovative offensive cyber capabilities that help protect the nation and the world. Cyber Lockheed Martin Who we are: Are you driven by the thrill of outsmarting even the most advanced security systems and