Semantic Search jobs in McLean, VA

Arlington, Virginia

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Today

About the Organization Now is a great time to join Redhorse Corporation. We are a solution-driven company delivering data insights and technology solutions to customers with missions critical to U.S. national interests. We're looking for thoughtful, skilled professionals who thrive as trusted partners building technology-agnostic solutions and want to apply their talents supporting customers with difficult and important mission sets. Join the Team Building the Future of AI for National Security

Sponsored

Full-time

Senior AI/ML Data Engineer

Washington, District of Columbia

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Today

Senior AI/ML Data Engineer Why This is an Exciting Role: BI&A is seeking a highly experienced Senior AI/ML Data Engineer to lead the design and implementation of enterprise-scale data platforms supporting a large-scale Agentic AI transformation initiative. With extensive experience delivering AI and machine learning solutions in complex enterprise environments, you will serve as a technical leader responsible for architecting the data ecosystem that powers vector search, Retrieval-Augmented Gen

Full-time

USD 242,000.00 - 305,000.00 per year

Full Stack JavaScript Developer (Data & Search Focus)

Springfield, Virginia

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2d ago

Location: Springfield, VA (On-site) Clearance: TS Required Position Overview Metric5 is seeking a motivated Full Stack JavaScript Developer to join a highly visible mission project for our NGA customer. In this role, your primary focus will be designing, building, and maintaining robust web applications using React, Node.js, NestJS, and TypeScript within a modern cloud-native ecosystem. You will also assist with integrating, optimizing, and supporting the application's underlying data streaming

Full-time

USD 140,000.00 - 170,000.00 per year

AI/ML Data Engineer

Reston, Virginia

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Today

Residency All applicants must currently reside in the United States Overview BigBear.ai is seeking an AI/ML Data Engineer to architect, build, and operate enterprise-scale AI data platforms enabling vector databases, semantic search, Retrieval-Augmented Generation (RAG), and agentic AI systems. This role will establish the technical and governance foundations for production AI, including data lineage, source attribution, prompt/context traceability, explainability, and evaluation in mission en

Full-time

AI Engineer, Architect

Springfield, Virginia

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Today

Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation's interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD) to transform data into actionable intelligence, ensuring mission success in an evolving world. Our mission-first software and data engineering platform modernizes data operations, utilizing advanced workflows, CI/CD, and secure DevSecOps practices. We focus on challenges in In

Full-time

USD 156,000.00 - 351,000.00 per year

Senior Software Engineer

Bethesda, Maryland

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Today

ZoomInfo is where careers accelerate. We move fast, think boldly, and empower you to do the best work of your life. You'll be surrounded by teammates who care deeply, challenge each other, and celebrate wins. With tools that amplify your impact and a culture that backs your ambition, you won't just contribute. You'll make things happen-fast. What You'll do: Design, develop, and maintain scalable and reliable services and APIs (REST and GraphQL) behind our intent and search features.Evolve our e

Full-time

USD 140,000.00 - 220,000.00 per year

Full performance AI/ML Engineer

McLean, Virginia

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Today

Description Markon is seeking an AI/ML Engineer (Full Performance) to support an Intelligence Community client in McLean, Virginia. This position will design, develop, integrate, and maintain AI/ML-enabled applications supporting mission-critical enterprise capabilities, with a focus on large language model (LLM) integration, agent-based workflows, and retrieval-augmented generation (RAG). The AI/ML Engineer will work across application development, data engineering, and system integration to d

Full-time

USD 130,000.00 - 160,000.00 per year

Software Engineer 1 - (Python, AI, REST APIs)

Columbia, Maryland

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Today

Software Engineer 1 - (Python, AI, REST APIs) Clearance: TS/SCI - Polygraph required Position ID: 20-16-064-SWE1 Location: Columbia, Maryland Description: We are seeking a Software Engineer I with a focus on AI to support analysts and operators by developing and refining the software that integrates AI capabilities into CNO workflows. In this role, you will integrate diverse data sources and external APIs with MCP tools to enable seamless, scalable system interoperability. You will work under

Full-time

USD 169,000.00 - 207,000.00 per year

Junior Forward Deployed Engineer

Arlington, Virginia

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Today

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company within global Accenture. Recognized as a Glassdoor Top 100 Best Place to

Full-time

USD 72,600.00 - 132,100.00 per year

Software Engineer 3 - (Python, AI, NLP)

Columbia, Maryland

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Today

Software Engineer 3 - (Python, AI, NLP) Clearance: TS/SCI - Polygraph required Position ID: 20-16-039-SWE3 Location: Columbia, Maryland Description: We are seeking a Software Engineer to build and advance a cutting-edge agentic platform designed to power intelligent, autonomous workflows. In this role, you will integrate diverse data sources and external APIs with MCP tools to enable seamless, scalable system interoperability. You will collaborate closely with cyber analysts to translate oper

Full-time

USD 241,000.00 - 295,000.00 per year

Government and Infrastructure - AI and Data Analyst - Top Secret Clearance

McLean, Virginia

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Today

At EY, we're all in to shape your future with confidence. We'll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help to build a better working world. Government and Infrastructure - Technology Consulting - AI & Data - Data Analyst - Top Secret Clearance From strategy to execution, the Government and Infrastructure practice of Ernst & Young provides a full range of consulting and audit services to help our Federal

Full-time

USD 91,400.00 - 136,900.00 per year

Generative AI Applications Engineer (Agents & RAG)

Washington, District of Columbia

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Today

Full-time

USD 103,200.00 - 203,400.00 per year

Software Engineer 2 - (Python, AI, APIs)

Columbia, Maryland

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Today

Software Engineer 2 - (Python, AI, APIs) Clearance: TS/SCI - Polygraph required Position ID: 20-16-059-SWE2 Location: Columbia, Maryland Description: We are seeking a Software Engineer with a focus on AI to support analysts and operators by developing and refining the software that integrates AI capabilities into CNO workflows. In this role, you will integrate diverse data sources and external APIs with MCP tools to enable seamless, scalable system interoperability. You will work under the gu

Full-time

USD 199,000.00 - 244,000.00 per year

AI/ML Data Scientist - AI Vector Search & Agentic AI Platforms

Reston, Virginia

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Today

ROLE OVERVIEW Red Arch Solutions is seeking an experienced AI/ML Data Engineer to collaborate on the design and implementation of enterprise-scale data platforms supporting a large-scale Agentic AI transformation initiative. With extensive experience delivering AI and machine learning solutions in complex enterprise environments, you will be responsible for architecting the data ecosystem that powers vector search, Retrieval-Augmented Generation (RAG), large language model (LLM) applications, an

Full-time

USD 180,000.00 - 220,000.00 per year

AI/ML Data Scientist - AI, Vector Search & Agentic AI Platforms

Reston, Virginia

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Today

Full-time

USD 220,000.00 - 250,000.00 per year

Machine Learning Engineer - TS/SCI with Polygraph

McLean, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: Data Science and Data Engineering Job Qualifications: Skills: Artificial Intelligence (AI), Keras, Language Models, PyTorch, Tensorflow Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a personal impact as an Artificial In

Full-time

USD 168,300.00 - 227,700.00 per year

Senior Software Engineer

Columbia, Maryland

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Today

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026! Belay Technologies is seeking a Senior Software Engineer (Full Stack) to join our Intel team. We are seeking a Software Engineer to build and advance a cutting-edge agentic platform designed to power intelligent, autonomous workflows. In this role, you will integrate diverse data sources and external APIs with MCP tools to enable seamless, scalable system interoperability. You will collaborate closely

Full-time

USD 190,000.00 - 240,000.00 per year

Data Scientist

McLean, Virginia

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Today

Data Scientist Department: Data Analysis and Technology Services Employment Type: Full Time Location: McLean, VA Compensation: $130,000 - $260,000 / year Description REQUIRED: Active TS/SCI with Full Scope Polygraph LOCATION: Full-time, onsite in McLean, VA EXPERIENCE: 11 years+ We are seeking a highly capable Data Scientist (Expert Level) with demonstrated experience in advanced natural language processing, machine learning, and analytical research to support mission-focused initiatives.

Full-time

USD 130,000.00 - 260,000.00 per year

Forward Deployed AI Engineer

Arlington, Virginia

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Today

Full-time

USD 70,500.00 per year

AI Engineer

Washington, District of Columbia

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Today

M9 Solutions is dedicated to providing IT services and solutions to the Federal Government by mobilizing the right people, skills, clearance levels, and technologies to help organizations that desire improved performance and modern, sustainable change. M9 has provided quality IT services and support to more than 30 Federal Agencies and multiple commercial customers nationwide. Our capabilities include IT Talent Solutions, Data Delivery & Analytics, Cyber Security, Cloud Migration, Applications a

Full-time

USD 60,000.00 per year

Semantic Search jobs in McLean, VA, USA