Legacy Systems jobs in Beltsville, MD

Aircraft Maintenance & Logistics Analyst

McLean, Virginia

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Today

RESPONSIBILITIES: Kforce has a client in McLean, VA that is seeking an Aircraft Maintenance & Logistics Analyst. About the Role: We are seeking an experienced to support a major bomber program within a defense acquisition and sustainment environment. This role will provide lifecycle logistics, maintenance, and sustainment expertise for aircraft, weapon systems, and support equipment programs. The ideal candidate will have a strong background in Integrated Logistics Support (ILS), sustainment pl

Full-time

$140,000 - $160,000 annually

NAS Systems Engineer

Washington, District of Columbia

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Today

A3 Technology, Inc. has an immediate opening for a Systems Engineer/Integrator in Washington, DC to assist with conducting comprehensive system-wide reviews and analyses of all aspects of the National Airspace System (NAS) development life cycle, particularly the Air Traffic Control (ATC) system, including ATC automation, communications, and navigation and surveillance elements of the NAS. Enterprise-level engineering support to the Transformative Technology Office's mission of planning, implem

Full-time

USD 50,000.00 per year

Lead Application Developer - SME

Suitland-Silver Hill, Maryland

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Today

Multiple Openings Location: Suitland, MD Hybrid Proposal Opportunity: This position is being recruited in support of an active federal proposal. Employment is contingent upon contract award, final customer requirements, and position availability. Candidates selected during the proposal phase may be asked to provide an updated resume and other information required for proposal submission. About the Role Essnova Solutions is seeking experienced Lead Application Developers - SME to support a lar

Full-time

MuleSoft Developer(Only on W2)

Hybrid in Bethesda, Maryland

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16d ago

Role: MuleSoft Developer Location: Bethesda, MD Duration: Long Term Experience: 12+ Note: Only on W2 Responsibilities Design, develop, test, deploy, and support enterprise integrations using Mule 4 / Anypoint Platform. Build System, Process, and Experience APIs using API-led connectivity. Develop REST/SOAP APIs using RAML/OpenAPI. Create complex data transformations using DataWeave 2.0. Work with Anypoint Studio, API Manager, Runtime Manager, Exchange, and CloudHub/CloudHub 2.0. Integrate

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Contract

Depends on Experience

Sr. Application Developer SME

Washington, District of Columbia

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Today

Residency All applicants must currently reside in the United States Overview BigBear.ai is seeking a Sr. Application Developer to support the Defense Intelligence Agency (DIA). You will be joining our amazing BigBear.ai team to provide development for legacy and existing systems whether it's building out new features, enhancements, or bug fixes and adding features that will allow our successor system to integrate with older legacy systems so that both systems can co-exist. This position will b

Full-time

Sr. Application Developer Front-End

Washington, District of Columbia

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Today

Residency All applicants must currently reside in the United States Overview BigBear.ai is seeking a Sr. Application Developer with Front-End focus to support the Defense Intelligence Agency (DIA). You will be joining our amazing BigBear.ai team to provide development for legacy and existing systems whether it's building out new features, enhancements, or bug fixes and adding features that will allow our successor system to integrate with older legacy systems so that both systems can co-exist.

Full-time

M365 Migration Support Engineer - Hybrid

Washington, District of Columbia

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Today

Job ID: 2617814 Location: Washington, DC, US Date Posted: 2026-10-12 Category: Software Subcategory: SW Testing Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_HYBRID Description SAIC is looking for an experienced Microsoft Exchange Online Technical Support Engineer to provide dedicated support for U.S. Army 365 (A365) end users. In this role, you will deliver high-quality techn

Full-time

USD 120,001.00 - 160,000.00 per year

Cyber Security Engineer (Expert) Job#927

Reston, Virginia

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Today

Cyber Security Engineer (Expert) Location: Reston, VA Clearance Required: TS/SCI and pass a poly Responsibilities Expert Cyber Security Engineers capture and refine information security requirements and ensure that the requirements are integrated into information technology component products and information systems through purposeful security architecting, design, development, and configuration. Duties include: Assists with leading development teams working to design and develop informatio

Full-time

Cyber Security Engineer - Expert

Reston, Virginia

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5d ago

Expert Cyber Security Engineers capture and refine information security requirements and ensure that the requirements are integrated into information technology component products and information systems through purposeful security architecting, design, development, and configuration. Duties include: Assists with leading development teams working to design and develop information systems or upgrade legacy systems.Conducts product research and support Analysis of Alternative (AoA) activities that

Full-time

USD 135,000.00 - 200,000.00 per year

Senior Java Developer

Washington, District of Columbia

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Today

Requisition ID: 5317Standard Title: Required Security Clearance: Top Secret/SCI with CI PolygraphLocation: Washington, DCWork Type: Hybrid (On-Site and Remote)Shift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Position Summary Base-2 Solutions is seeking a Senior Java Developer to modernize a critical government information system. The ideal candidate will have deep expertise in enterprise Java application development and a proven track record of upgrading complex software

Full-time

Controls & Integration Engineer III, Electrical

Jessup, Maryland

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Today

TITLE: Controls & Integration Engineer , Electrical LOCATION: Jessup, MD POSITION SUMMARY: Controls Engineers are responsible for designing, developing, installing, and maintaining equipment used to monitor and control systems, equipment and processes. They work in various industries including building management systems, power system automation and protection systems. Controls engineers are technical experts in areas such as advanced process control, instrumentation, distributed control syste

Full-time

USD 98,891.00 - 148,392.00 per year

SharePoint and Power Platforms Administrator III

Washington, District of Columbia

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Today

Mobius is an award winning, Small Business Administration (SBA) certified Historically Underutilized Business Zone (HUBZone) company and certified Woman-Owned Small Business (WOSB) providing engineering, analytical, and programmatic expertise to the Federal Government and commercial customers. Our mission is to provide innovative advanced technology solutions to customers facing issues of national and global significance. We strive to be admired for excellent people, fair and honest partnership,

Full-time

USD 85,000.00 - 93,000.00 per year

SharePoint and Power Platforms Administrator IV

Washington, District of Columbia

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Today

Full-time

USD 75,000.00 - 80,000.00 per year

Director, Digital AdTech Engineering

Silver Spring, Maryland

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Today

Storytelling is, and will always be, the heart of what we do at Skydance. Our vision is to build a thriving entertainment ecosystem where stories and worlds are imagined, brought to life and experienced. We create for every age and audience, anchored by the strength of our content and experiences and the depth of our connection with fans. We are creator-first, audience-focused, tech-forward, globally scaled. Here, you'll work with talented teams that move fast, think boldly and collaborate wit

Full-time

USD 180,110.00 - 334,490.00 per year

Library Support Backend Developer

Beltsville, Maryland

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Yesterday

One Federal Solution is seeking an experienced Library Support Backend Developer to support the National Agricultural Library (NAL) Library Support System. The successful candidate will be responsible for backend application development, maintenance, modernization, and enhancement of database-driven applications and APIs. This role also includes applying artificial intelligence techniques to extract structured information from diverse scientific publications while supporting the modernization of

Full-time

Sr. Systems Administrator

Washington, District of Columbia

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Today

Residency All applicants must currently reside in the United States Overview BigBear.ai is seeking a BigBear.ai is seeking a Senior Systems Administrator to support the Defense Intelligence Agency (DIA). You will be joining our amazing BigBear.ai team for immediate systems administrator support to legacy and existing systems. Our dream candidate will have some Oracle experience to facilitate our successor system to integrate with older legacy systems so that both systems can co-exist. This po

Full-time

Application Programmer/QA Engineer

Beltsville, Maryland

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Today

The Application Programmer/QA Engineer will provide application programming and QA engineering support for NAL scientific research data applications using Drupal, PHP, Tripal, Chado, and DevSecOps practices. The successful candidate will support software development, application modernization, quality assurance, testing, security, and Operations & Maintenance (O&M) activities while collaborating with government stakeholders and technical teams. Task and Duties: Provide application programming a

Full-time

Program Field Applications Engineer

Washington, District of Columbia

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Today

The Opportunity: As a Program Field Applications Engineer, you will be taking the lead in deploying, installing and maintaining our Precision Clock Systems. Specifically, this means guaranteeing the reliability, safety, robustness, and lifetime of our product designs. You will be supporting a robust and resilient system in a fast-paced environment with the opportunity to grow and improve upon that system. You will support unique solutions to extend legacy hardware functionality or find ways to i

Full-time

USD 100,000.00 - 130,000.00 per year

Help Desk Tier 3 Support Personnel

Washington, District of Columbia

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Today

Business Technology Integrators (BTI) is a Service-Disabled Veteran-Owned Small Business (SDVOSB) with more than 25 years of experience delivering innovative and reliable IT and engineering solutions to the Federal Government. BTI supports mission-critical programs across defense and civilian agencies, with core expertise in cybersecurity, program management, enterprise IT, and technical oversight services. Position Overview: The Tier 3 Support Personnel will provide advanced technical, end-us

Full-time

Software Engineer II - Engineering

Remote or Arlington, Virginia

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Today

Attention: Kapitus is aware that individuals posing as recruiters may be communicating with job seekers about supposed positions with Kapitus. Kapitus has received reports that the content and method of communication can vary, but messages may contain requests for payment (e.g., fees for equipment or training) and/or for sensitive financial information. Kapitus will never ask a candidate for employment for payment or financial information during the initial application or interview process. All

Full-time

USD 96,300.00 - 154,400.00 per year

Legacy Systems jobs in Beltsville, MD, USA