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Legato, LLC recruiters (Staffing@legatocorp.com) would love to speak with you regarding the following position: Windows CNO Developer in Dulles, VA.Security Clearance Required: TS/SCI minimumWhat You Will Do: We are seeking a highly skilled CNO Developer with strong reverse engineering capabilities to support advanced research, systems development, and threat analysis. This role requires deep knowledge of the Windows operating system internals, low-level programming, and the ability to analyze and deconstruct binaries for vulnerabilities, malware, or undocumented system behavior.

Legato Corporation

Windows CNO Developer (BZ)

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REQUIRED EXPERIENCE: 16 years INTERVIEWS: Webcam and In Person Job Description: The Client requires a senior, hands-on Solution Architect resource to serve as the technical design authority for STAAND (Stronger Together Against Abuse and Neglect in DC), the District's federally certified Comprehensive Child Welfare Information System. The Resource is expected to personally configure, code, prototype, review, and troubleshoot in the platform while serving as the credible technical voice to executive leadership, STAAND Product Team, Microsoft, and Federal Partners (ACF/Children's Bureau).

HOUR

AHU Technologies

Senior D365 CE / Power Platform Developer

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Develop solutions using C#/.NET, HTML5, JavaScript, Bootstrap, CSS, SQL, and AWS and Microsoft cloud services while integrating large language models (LLMs), APIs, MCP servers, and other AI capabilities. Experience integrating multiple LLMs or AI services through APIs or SDKs, with familiarity in prompt engineering, tool calling, or retrieval-augmented generation (RAG).

Seamless Migration

AI Web Developer (TS/SCI CI Poly)

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ADAPTED_NOW

Experience with HTML, CSS, JavaScript, React/OpenLayers, Spring Framework, Hibernate, REST/Open API , and RDBMS/NoSQL databases (SQL Server, Oracle, MySQL, MongoDB) . As trusted partners to leading aerospace and defense OEMs and Tier 1 suppliers, we connect professionals with career opportunities to grow and excel in aviation, aerospace, and defense.

The Structures Company

Software Engineer - Developer 4

LV8D Solutions is an elite Systems Engineering and Technical Advisory (SETA) company that delivers advanced systems engineering, integration, acquisition, mission operations, network communications, and cybersecurity support to our defense and intelligence customers. This role collaborates with software developers, systems engineers, mission operations personnel, cybersecurity specialists, andprogram leadership to deliver reliable, mission-critical capabilities that support spacecraft operations and mission success.

LV8D Solutions LLC

Software Systems Engineer

Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. We're looking for an experienced back-end-focused developer with the software engineering skills it takes to identify potential risks, contribute to solution development, and create efficient and effective systems for our clients.

YEAR

Booz Allen is an advanced technology company. We build commercial-grade products and solutions for America’s most critical defense, civil, and national security priorities.

Booz Allen Hamilton Inc.

Node.Js Developer SME

Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

Application Developer

Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Nice If You Have: Experience researching and implementing COTS cyber solutions software such as antivirus, content disarm, cross domain solutions, or data loss prevention.

Booz Allen Hamilton Inc

Full-Stack Linux Cyber Application Developer, Lead

Candidate must, at a minimum, have one of these certifications: UiPath Certified Advanced RPA Developer, AWS Certified Cloud Practitioner, AWS Certified Developer, AWS Certified Solutions Architect, Azure Developer Associate, Azure Solutions Architect. Our Digital Modernization sector is at the forefront of next-generation technology, architecting cutting-edge solutions in cyber defense, logistics optimization, security operations, and decision intelligence.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Leidos Holdings Inc

Junior Automation Developer (UiPath)

With a history of expertise in software development, computer network design, IT security, mission operations support, and educational outreach, Team ADNET is deeply embedded in the Space and Earth Science at NASA's Goddard Space Flight Center (GSFC) in Greenbelt, MD. GCN distributes automated alerts (Notices) and human-written observation reports (Circulars) from NASA missions, international missions, and ground-based observatories to thousands of astronomers and observatories around the world.

Support

AP111 Full-Stack Web Developer

Experience with source control, build, and deployment practices using Git-based repositories, AWS CodeCommit or equivalent enterprise repositories, PHP dependency management and build tools such as Composer or comparable tools, release branching/tagging, and delivery of fully commented source code and configuration artifacts. Experience supporting applications hosted on Amazon Web Services (AWS), including troubleshooting issues involving AWS S3, RDS, EFS, cloud-hosted repositories, application deployments, backups, and environment configuration across Development, UAT/Pre-Production, Production, and Disaster Recovery environments.

Our core philosophy is to listen to our customers, understand their requirements and develop a world-class solution that exceeds their expectations.&nbsp; We routinely go beyond what is considered exceptional work, redefining the standard for what quality service delivery should be.
As a young, small, aggressive company, we attract some of the best minds in the consulting industry who possess an extraordinary ability to quickly adapt to and address our customers&rsquo; dynamic needs.&nbsp; We value and respect our employees, and work hard to foster an environment in which all team members are unconditionally committed to the highest standards of ethical behavior and professional integrity.
At ITCON Services, we strive to establish and maintain long-term relationships with customers and employees.

ITCON Services

Senior PHP Developer

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This position requires strong full-stack engineering capabilities across Python/Django, Java/Spring Boot, and Node.js, paired with DevOps skills that support automated, secure, AWS-based cloud environments. Futrend is seeking a Mid-Level Full Stack & DevOps Engineer to support the National Library of Medicine (NLM) in developing, modernizing, and securing enterprise web applications.

About FUTREND’s success comes from combining strong domain knowledge in information technology and technical expertise in system engineering and development, as well as design, testing, and deployment. We work with Federal agencies to improve, implement, and integrate financial systems; provide business process support and analysis; and deliver enhancements, upgrades, and extensions to their systems. With in-depth knowledge, hands-on experience; and cutting-edge technology and tools to support our service offering, we bring expertise and innovation to every task. FUTREND currently offers a wide range of various professional services to clients. We provide ongoing support of existing activities as well as perform root-cause analysis of identified problems so that we can help agencies improve their processes and prevent issues from recurring in the future.

Futrend Technology

Full Stack Python/DevOps Developer

Ashburn Consulting, a Small Business based in the Washington, DC metropolitan area, specializes in providing network and network security solutions in complex environments to a select set of government and business clients. Work side-by-side with County staff and an assigned project manager; provide project metrics, active knowledge transfer, business-process documentation, release documentation, and maintainable code.

Ashburn Consulting LLC

Process and Workflow Applications Developer

We are seeking an experienced ServiceNow Developer to provide software development, platform administration, and operations and maintenance (O&M) support for a ServiceNow platform supporting the Sponsor's organization. Configuration & Release Management: Manage and deploy ServiceNow update sets across development, sub-production, and production environments, ensuring configuration consistency and controlled releases.

VTG.

ServiceNow Developer

With 15+ years of proven delivery and growth, M9 Solutions is a unique small business with credible past performance and key capabilities offering project management services, solution architects, business analysts, program managers, technical architects, and technical consultants. M9 Solutions is a proud participant in the Virginia Values Veterans (V3) program and supports the Military Medics and Corpsmen (MMAC) initiative, demonstrating our commitment to hiring and supporting veterans, transitioning service members, military spouses, and dependents.

With 12+ years of proven delivery and steady growth, M9 is a unique small business with credible past performance and key capabilities DELIVERING THE DIGITAL FUTURE ℠ to the public sector. Inc. 500 2011 Inc. 5000 Fastest-Growing Private Companies 2020, 2019, 2018, 2017, 2016, 2012

M9 Solutions

Momentum Technical Developer

Compensation: $150,000.00 - $160,000.00 per year JCD Staffing is a specialized staffing and consulting firm, focused on working with highly talented technical individuals to provide our clients with a unique, successful hiring experience. Responsibilities: The Developer performs software development and maintenance tasks assigned under the guidance of the Project Manager and Team Lead.

Jcd Staffing

Full Stack Developer

Dexian Government Solutions has received several recognitions, including rankings on ''Top 50 Companies to Watch'', Washington Technology's Annual ''FAST 50'', and Inc. 500's List of ''Fastest Growing Private Companies''. Dexian Government Solutions is an award-winning ISO 9001:2015 certified business and GSA contract holder providing diversified Information Technology services to both Civilian and Defense agencies.

LinTech Global, Inc

Developer-Intermediate - Java Application Modernization

Posting Number CLS_4837P Recruitment Type General Public - G Number of Vacancies 1 Position End Date (if temporary) Job Open Date 10/30/2026 Job Close Date 11/13/2026 Open Until Filled Agency Website www.nvcc.edu Contact Name Email Phone Number Special Instructions to Applicants. This positions primary responsibility is to support APIs, ETL processes, and integration services that connect cloud and on-premises systems for the Student Financial Planner(SFP) languages including but not limited to: groovy, csharp, and python.

VIRGINIA COMMUNITY COLLEGE SYSTEM

SFP Developer

CERTIFICATION REQUIREMENTS: Required: IAT Level III certification (one of the following): CISSP, CASP+, CCNP Security, CISA, CISSP (or Associate), GCIH, GCFA, or CSSLPDesired: Multiple cloud platform certifications at professional level (AWS Solutions Architect Professional, Azure Solutions Architect Expert, or Google Cloud Professional Cloud Architect), Kubernetes CKA/CKAD, Docker Certified Associate, specialized security certifications. Bachelor''s degree in Computer Science, Software Engineering, Information Technology, Cybersecurity, Data Science, Information Systems, or related technical field from an ABET accredited or CAE designated institution; Master''s degree preferred.

Ukpeagvik Inupiat Corp

Senior Applications Developer

Develops and enhances service request portals, dashboards, and visualizations integrating business data from SharePoint, applications, files, and internal and external data sources, creating and maintaining Power Automations supporting multiple business processes, integration of AI/ML into BI reporting, cleansing and curation of business intelligence datasets, re-development of a quantitative cybersecurity risk assessment tool, and development of additional quantitative risk assessment tools. Experience connecting to and extracting/manipulating data from the following systems: Asset Management System (AMS), BigFix, Enterprise Process Automation System (EPAS), Facilities Integration Tool (FIT), Joint Cybersecurity Authorization and Management (JCAM), HR Source/HR Reports, Sentinel, Tenable, Unified Finance Management System (UFMS), Xacta, Microsoft Defender for Enterprise, JIRA, JIRA Service Manager, and CrowdStrike.

Systems Software Developer Jobs in Reston, VA

Windows CNO Developer (BZ) Legato Corporation

Senior D365 CE / Power Platform Developer AHU Technologies

AI Web Developer (TS/SCI CI Poly) Seamless Migration

Software Engineer - Developer 4 The Structures Company

Software Systems Engineer LV8D Solutions LLC

Node.Js Developer SME Booz Allen Hamilton Inc.

Application Developer Booz Allen Hamilton Inc.

Full-Stack Linux Cyber Application Developer, Lead Booz Allen Hamilton Inc

Junior Automation Developer (UiPath) Leidos Holdings Inc

AP111 Full-Stack Web Developer Support

Senior PHP Developer ITCON Services

Full Stack Python/DevOps Developer Futrend Technology

Process and Workflow Applications Developer Ashburn Consulting LLC

ServiceNow Developer VTG.

Momentum Technical Developer M9 Solutions

Full Stack Developer Jcd Staffing

Developer-Intermediate - Java Application Modernization LinTech Global, Inc

SFP Developer VIRGINIA COMMUNITY COLLEGE SYSTEM

Senior Applications Developer Ukpeagvik Inupiat Corp

PowerApps Developer M9 Solutions

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