UNKNOWN

FEED

In this matrixed role, you will support the creation, prototyping, and operationalization of cutting-edge AI/ML Proof of Concepts (PoCs)-including GenAI/LLMs, NLP, and computer vision-specifically tailored to Intelligence Community (IC) mission use cases. Responsibilities include, but are not limited to: Rapid PoC & demo prototyping (50%): Assist senior developers in designing, coding, and deploying visual AI/ML prototypes (GenAI/LLMs, NLP, computer vision) to address IC mission needs.

YEAR

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.

Science Applications International Corp

AI/ML Developer

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TCG is recognized for treating employees well, in fact, in 2025 The Washington Post named TCG as a "Top Workplace" for the eleventh straight year based on how our employees feel about the company, the benefits TCG offers, and the work/life balance that our staff achieves. Applicants must reside within a commutable distance of Washington, D.C. REQUIRED SKILLS: A minimum of five (5) years experience with web development using HTML, CSS, JavaScript, Python, jQuery, React.js, and Angular.

TCG Inc

Senior Python/Web Developer-4237734

Front-End React Developer

Build and evaluate approved AI-enabled features using Microsoft Foundry (formerly Azure AI Foundry), Azure AI Search, and Azure AI services, with appropriate access controls, testing, and human review. The developer will build and modernize user interfaces, APIs, business services, and data integrations that support NIH Center for Scientific Review (CSR) operations.

Leidos Holdings Inc

Full Stack .NET Developer

The candidate will leverage their advanced expertise in SharePoint development, web coding, and user-focused content management to craft intuitive and efficient solutions enhancing collaboration, communication, and operational effectiveness for mission-critical operations. Key Responsibilities: The successful candidate must be able to: Develop, customize, and maintain SharePoint solutions across modern and legacy environments, including SharePoint 2013, 2019, and SharePoint Online.

SharePoint Frontend Developer

FULL_TIME

We seek developers with an AI‑first engineering mindset, able to choose between deterministic code, LLMs, and agents, and to design for probabilistic outputs with robust fallback strategies while balancing cost, latency, and reliability. Core GenAI & LLM expertise includes integrating LLMs into production, prompt engineering, structured outputs, RAG pipelines, effective context management, and quality/hallucination evaluation.

WISETEK PROVIDERS INC

AI Developer

Understanding and working (hands-on) knowledge of newer or emerging trends such as Big Data, Columnar databases, NoSQL, Hadoop, MapReduce, social media, data visualization, XML, and unstructured text is a plus. Experience in design, development and tuning industry leading ETL, Big Data, and/or Business Intelligence software tools in data intensive, large scale environments.

Rapinno Tech

Senior Ab Initio Developer (Big data/Hadoop)

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Preferred 5+ Years- Advanced knowledge in a variety of application support delivery of Cloud enabled application technologies including: Containerized or virtual machine-delivered servers such as Tomcat, NodeJS, or Django. Additional attributes needed: 9+ Years- Experience in the design, implementation, and delivery of applications based in Java, JavaScript, and Python with various persistence layers (SQL and NoSQL) preferred.

BayNova LLC

Full Stack Developer

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Job Title: Front-End Web DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * * The Opportunity: CACI is seeking a Front-End Web Developer to design, build, and enhance intuitive, visually engaging, and accessible web applications supporting a government customer. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.

CACI provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&amp;P SmallCap 600 Index, CACI provides dynamic careers for over 15,800 employees working in over 120 offices worldwide. Visit <a href="http://www.caci.com" target="_blank" itemprop="url" mns_rt="Company">www.caci.com</a>. 
 
 We strive to sustain a corporate culture based on integrity - one that's focused on treating customers ethically and making their priorities our priorities. We pride ourselves in finding and hiring people with the highest intellectual capital, and providing them with challenging opportunities and encouraging their innovation and initiative.

CACI

Front-End Web Developer

Implement user-facing human-in-the-loop controls, including review queues, decision-support displays, overrides, approvals, escalation mechanisms, correction/feedback workflows, audit trails, and role-based access. Implement capabilities using approved LLMs, RAG pipelines, classification models, document intelligence, predictive analytics, generative AI, agentic workflows, and MCP-based services.

Swingtech

AI Developer- Hybrid (US Citizens/ Green Cards- Local to DMV only)

This position supports the following program: U.S. Department of Transportation (DOT), Office of the Secretary (OST), Working Capital Fund (WCF), Office of Financial Management (OFM) — WCF IT Financial Management, Cost Model Development, and Systems Integration Support. · Design and build the automated billing-cycle workflow end to end: scheduled ingestion, validation on load, execution of the approved calculation logic, self-populating exception queues, pre-bill review and approval flows, and publication handoffs.

BizFirst

Automation Developer

Foster Analytics Excellence Contribute reusable platform content, including ontology patterns, dashboard templates, and integration recipes, to support continuous curriculum refresh Document data sources, metrics definitions, and analytical methodologies for organizational knowledge. 4+ years of software or data engineering experience (data analysis or data science experience considered), including 1.5+ years hands-on with Palantir Foundry, Gotham, AIP, or MSS.

Agile Defense

MSS Developer - Falls Church

Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

Full Stack Web Developer

OTHER

Integrate unauthorized Azure resources into source control and refactor existing IaC repositories, with a focus on PowerShell scripts and advanced automation techniques. Proven hands-on proficiency with key Microsoft Azure services, including automation, IaC tools (PowerShell, ARM templates, Terraform or Ansible experience preferred).

Cayuse Holdings

Senior Cloud Developer

[AW]-iCims

Azure Infrastructure Management: Design, implement, and manage cloud infrastructure, including compute, networking, storage, and other Azure services, ensuring high availability and scalability. Infrastructure Modernization: Migrate existing unmanaged Azure resources into source control and refactor Infrastructure as Code (IaC) configurations, with an emphasis on PowerShell.

Cloud Developer, Mid

Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We are seeking a skilled and experienced Front-End Specialist to design and build accessible, high-performing user interfaces that present published products and content to Congress and the public.

Senior Front-End Developer

Knowledge of GL accounting, financial close and consolidation processes, payroll accounting and accruals, account reconciliations, journal entries and reclassifications, and retroactive and corrective adjustments. Responsibilities will include, but are not limited to: Lead end-to end design, development, configuration, and deployment of OneStream applications that focus on financial close, financial reconciliation, and payroll management.

Guidehouse

Sr Onestream Developer

The ideal candidates will possess strong expertise in low-level Windows systems development and demonstrate proficiency across multiple programming languages and development tools. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization.

Nightwing Intelligence Solutions

Windows Application Developer

This policy shall apply to all employment actions, including but not limited to recruitment, hiring, upgrading, promotion, transfer, demotion, layoff, recall, termination, rates of pay or other forms of compensation and selection for training, including apprenticeship, at all levels of employment. We are looking for a Senior Software Developer to design, develop, deploy, and support Java, Spring Boot, RESTful API, and Microsoft Azure cloud-native applications.

HOUR

CAI is a global technology services firm with over 8,500 associates worldwide and a yearly revenue of $1 billion+. We have over 40 years of excellence in uniting talent and technology to power the possible for our clients, colleagues, and communities. As a privately held company, we have the freedom and focus to do what is right—whatever it takes. Our tailor-made solutions create lasting results across the public and commercial sectors, and we are trailblazers in bringing neurodiversity to the enterprise.
Learn how CAI powers the possible at <a href="https://urldefense.com/v3/__https:/www.cai.io/__;!!D1XWH5In!W4fDETkloyW4Xa-AUPmkOYLNe19WOZva811lQL0Fmd6NSb6Z4Fdv6_Xuex3ne2wpj1XTJajiLZIAdxSO_wcYSZS6Vvm1FQ$">www.cai.io</a>
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Computer Aid

Senior Software Developer

PERMANENT

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Whether you've earned a technical degree, gained hands-on programming experience, or worked professionally in industries like finance, healthcare, or insurance – Dev10 is your opportunity to upskill and launch a career in Software Development. Dev10 provides a pathway for motivated learners to gain real-world experience while developing technical skills through immersive training.

Genesis10 is a professional technology services firm that operates under the brand names Genesis10, Dev10 and New Journey.  
 
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<li style="margin: 0; vertical-align: baseline">Dev10 provides entry-level professionals paid programming instruction to work on compelling projects at great companies as a Software Developer or Data Professional. </li>
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Our team of experienced recruiters can help you find the ideal job to help your build your career.  We care about people.  We care about you.

Systems Software Developer Jobs in Reston, VA

AI/ML Developer Science Applications International Corp

Senior Python/Web Developer-4237734 TCG Inc

Front-End React Developer Science Applications International Corp

Full Stack .NET Developer Leidos Holdings Inc

SharePoint Frontend Developer Science Applications International Corp

AI Developer WISETEK PROVIDERS INC

Senior Ab Initio Developer (Big data/Hadoop) Rapinno Tech

Full Stack Developer BayNova LLC

Front-End Web Developer CACI

AI Developer- Hybrid (US Citizens/ Green Cards- Local to DMV only) Swingtech

Automation Developer BizFirst

MSS Developer - Falls Church Agile Defense

Full Stack Web Developer CACI

Senior Cloud Developer Cayuse Holdings

Cloud Developer, Mid Cayuse Holdings

Senior Front-End Developer Science Applications International Corp

Sr Onestream Developer Guidehouse

Windows Application Developer Nightwing Intelligence Solutions

Senior Software Developer Computer Aid

Entry Level Software Developer Genesis10

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