System Engineer Jobs in District of Columbia

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Principal Systems Administrator

ManTech

Arlington, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Principal Systems Administrator to join our team in Pentagon, VA. The position is onsite. Responsibilities include but are not limited to: Provide specialized support and troubleshooting for VIP users, including hardware, software, network, and application issuesManage and maintain computer systems, servers, and other IT infrastructure, ensuring optimal performance and securityManage VIP user accounts, permissions, and security access withi

Principal Systems Engineer

Leidos

Fort Meade, Maryland, USA

Full-time

Description Leidos has a new and exciting opportunity for a Principal System 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 i

Principal Systems Administrator

ManTech

Arlington, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Principal Systems Administrator to join our team in Pentagon, VA. The position is onsite. Responsibilities include but are not limited to: Provide specialized support and troubleshooting for VIP users, including hardware, software, network, and application issues Manage and maintain computer systems, servers, and other IT infrastructure, ensuring optimal performance and security Manage VIP user accounts, permissions, and security access

Systems Engineer

SAIC

Ashburn, Virginia, USA

Full-time

Job ID: 2506116 Location: ASHBURN, VA, US Date Posted: 2025-05-27 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description Position Summary We are currently seeking a motivated, career and customer-oriented Systems Engineer to join our team to begin an exciting and challenging career in

W2 Role || C++ System Developer/Programmer

V.L.S. Systems, Inc

Manassas, Virginia, USA

Contract

Role: C++ System Developer/ProgrammerLocation: Manassas, VA-Hybrid (Once the candidate is selected, they will give a schedule on what days of work in office and home)Duration: 12+ Months Description Code, test, review SWIFT software using technologies including C++,STL,Boost,Multithreading, Unix, Perl, Python and XML. Requirement analysis and Design ofnew features and enhancements to existing components. Produce / Update solutionpaper,design,documents. Support set-up of test environment, write

Principal Systems Engineer

Leidos

Fort Meade, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Principal System 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 ves

Acquisition Systems Engineer

SAIC

Chantilly, Virginia, USA

Full-time

Job ID: 2502891 Location: CHANTILLY, VA, US Date Posted: 2025-06-30 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking an Acquisition System Engineer to fill a critical position on SAIC's Prime Program, Landmark AOS located in Chantilly, VA. Landmark AOS support

Azure DevOps Administrator

SAIC

Washington, District of Columbia, USA

Full-time

Job ID: 2507115 Location: WASHINGTON, DC, US Date Posted: 2025-06-30 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description SAIC is seeking a mid-level Azure DevOps Administrator to support the configuration, integration, and operation of Azure DevOps Server, and various Developer Tools. This role serves

Systems Engineer - ENG04 - Cleared On-Site

Computer Merchant, Ltd., The

Sterling, Virginia, USA

Full-time

JOB TITLE: SYSTEMS ENGINEER LOCATION: STERLING, VA RATE: 95.00-100.00 PER HOUR JOB#: 14876525 REQUIRED SKILLS: Typically requires a bachelor's degree in science, Technology, Engineering, or Mathematics (STEM) and 5 years of prior relevant experience Experience defining system requirements for Agile software development and test teams, ensuring verification through acceptance criteria Engineering experience within the full systems and/or software engineering lifecycles Experience in system req

Enterprise Integration, Operations and Launch Systems Engineer

SAIC

Chantilly, Virginia, USA

Full-time

Job ID: 2506736 Location: CHANTILLY, VA, US Date Posted: 2025-06-16 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is looking for an Enterprise Integration, Operations, and Launch System Engineer to support a very dynamic and innovative space program in Chantilly, VA. In this position, y

Mainframe z/OS System Programmer

Centraprise Corp

Remote

Full-time

Role : Mainframe z/OS System Programmer Location : Remote for Plano TX Job Description Knowledge and experience in support for a complex Mainframe Environment Knowledge and experience in support for Mainframe migrations and LPAR/MIPS management Experience in Mainframe backup to and restore from tape Knowledge and Experience in Mainframe data Centre migration and design Experience in Install, configure and supporting Mainframe LPARS and MIPS Experience configuring and supporting mainframe restore

Computer Systems Engineer

Leidos

Odenton, Maryland, USA

Full-time

Job DescriptionDescription The Program Lead/System Engineer position will oversee the management of the system level requirements, and the performance of integration, verification, and user acceptance testing to ensure that the design, deployment, integration, maintenance, and support for Joint Worldwide Intelligence Communications Systems (JWICS) supporting DISA customers is fully operational. Primary Responsibilities The successful candidate primary responsibility will be: Perform Leidos supe

Cybersecurity Risk Management Analyst

Delviom LLC

Springfield, Virginia, USA

Full-time

Deep understanding of NIST frameworks NIST SP 800-37 rev 2 RMF, 800-53 rev 5,) Requires knowledge across the RMF phases, Knowledge of NIST 800-53 security control families and how to apply them for common controls (enterprise inherited) and system level controls, Developing Cybersecurity Policy, FISMA Metrics, Asset Management, compliance with DHS 4300A/B, advanced knowledge of the A&A process, conducting security assessments and preparing ATO packages, Ability to strong communication skills and

Acquisition Support - Contract Execution SME

SAIC

Chantilly, Virginia, USA

Full-time

Job ID: 2502581 Location: CHANTILLY, VA, US Date Posted: 2025-06-12 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description Join a winning team!! SAIC's Space and Intelligence Business Group is currently hiring to advance space capabilities supporting our Department of Defense (DOD)

RF Software Engineer 2

Realm One

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: The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive

DevOps Engineer

Leidos

Bethesda, Maryland, USA

Full-time

Leidos has an exciting opening for you, our next TS/SCI cleared DevOps Software Engineer working with a dynamic team to design, develop and deploy a state-of-the-art technology stack supporting the DIA-NMEC( National Media Exploitation Center) DOMEX Technology Platform (DTP). Under this 10-year contract containing multiple Task Orders, we support the DOMEX Data Discovery Platform (D3P) Modernization program. You will have impact as part of a mission focused, solutions oriented, and adaptive team

Computer Systems Engineer

Leidos

Falls Church, Virginia, USA

Full-time

Job DescriptionDescription We are seeking a detail-oriented and technically skilled System Engineer to join our team. The successful candidate will be responsible for comprehensive system design, integration, testing, and support. This role includes planning, analyzing, and verifying complex systems to ensure they meet customer and operational requirements. You will play a critical role in the full systems lifecycle from requirements gathering to final system validation and deployment. Primary R

System Administrator & Technical Lead - TS/SCI Clearance

Dexian DISYS

Washington, District of Columbia, USA

Full-time

Dexian has been engaged to identify a Senior System Administrator and Technical Lead with active TS/SCI clearance, to directly support the most sensitive programs of a defense technology organization. This is a Full-Time staff position working onsite in Washington, D.C. The Senior Systems Administrator will be a part of the team building and maintaining the critical classified infrastructure. You will have the opportunity to work with and learn from some of the world's best engineers and cybers

Computer Systems Engineer

Leidos

Merrifield, Virginia, USA

Full-time

Job DescriptionDescription We are seeking a detail-oriented and technically skilled System Engineer to join our team. The successful candidate will be responsible for comprehensive system design, integration, testing, and support. This role includes planning, analyzing, and verifying complex systems to ensure they meet customer and operational requirements. You will play a critical role in the full systems lifecycle from requirements gathering to final system validation and deployment. Primary R

Systems Integration Test Engineer

SAIC

Chantilly, Virginia, USA

Full-time

Job ID: 2506986 Location: CHANTILLY, VA, US Date Posted: 2025-06-25 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a Systems Integration Test Engineer to support SAIC's Prime Program, Landmark AOS in Chantilly, VA. Landmark AOS is a large SETA program, supporting the NRO's Gro