JSON jobs in Chantilly, VA

Ashburn, Virginia

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Today

Residency All applicants must reside in the United States at the time of application. Overview BigBear.ai is seeking a Java/JEE Developer (Mid-Level) to join our team to begin an exciting and challenging career in Ashburn, VA. What you will do Design, implement, and unit test REST microservices with Java, Spring, and JUnitDevelop web applications with Angular that communicate with backend microservicesWrite complex SQL queries and perform data modelingWork collaboratively within a large, Agil

Sponsored

Full-time

Data Modeler

McLean, Virginia

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2d ago

Job Title: Data Modeler Location: McLean, VA On-site Duration: 6+ Months Job Description Core, hands-on experience in enterprise data modeling with data modeling serving as the candidate's primary responsibility and not simply exposure as part of a Data Engineering role.Recent hands-on experience with MongoDB, including designing or working with document-based data models.Strong mortgage domain experience with recent and consistent involvement in mortgage-related projects. Experience supporting

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Contract, Third Party

$50 - $60

Sr Data Modeler

McLean, Virginia

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5d ago

URGENT REQUIREMENT Sr. Data Modeler Location: McLean, VA Type: 12+ Contract (Onsite Position) Candidates who are already local to the McLean, VA area are strongly preferred. Responsibilities: Core, hands-on experience in enterprise data modeling with data modeling serving as the candidate's primary responsibility and not simply exposure as part of a Data Engineering role.Recent hands-on experience with MongoDB, including designing or working with document-based data models.Strong mortgage domai

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Third Party, Contract

Depends on Experience

Developer-Full Stack Specialist with Agentic AI

McLean, Virginia

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30+d ago

Job Title: Developer-Full Stack Specialist with Agentic AI Location: McLean, VA Must Have Qualifications: Must have 5+ years of experience and a strong AI development background. Must have hands on experience building agentic workflows, automating testing using AI, and working with tools such as GitHub, Copilot, and Claude. Required Technical Skills (must-have) GenAI / LLM + agentic development Hands-on experience building LLM-powered agents (tool-using, multi-step reasoning, guardrails). Experi

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Contract

Depends on Experience

Software Developer (Full Stack Developer)

Chantilly, Virginia

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Today

Analyzing client/business requirements and designing appropriate cloud-based systems and architectures // Developing, testing, and debugging cloud-native applications using programming languages like Python, Java, REACT, JNode and JavaScript // Developing, testing, and debugging cloud serverless functions // Developing, testing, and debugging web-based UI pages to ingest data and generate JSON, CSV, and TXT files

Full-time

Sr Data Modeler

McLean, Virginia

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2d ago

Must-Have Skills 10+ years of enterprise Data Modeling experience (primary role)MongoDB document data modeling (recent hands-on)Mortgage domain experience (Freddie Mac/Fannie Mae preferred)Strong SQL and SnowflakeJSON and semi-structured data modelingETL, Data Integration, and Enterprise Data ArchitectureStrong stakeholder communication and leadership skills

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Contract

$60+

Senior Informatica ETL Developer - W2 Only-McLean,VA-Onsite

McLean, Virginia

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3d ago

Informatica power center with CAI Responsibilities : Work with internal SMEs to understand overall data architecture in scope for project deliverables. Understand all existing integration points within the AWS ecosystem, in scope for project deliverables e.g. Step functions, Dynamo DB, Glue. Work with internal support teams Analyze existing ETL process written using Talend and PySpark. Develop in scope transformations using Pyspark and IICS. Perform Unit testing and assist code promotion to

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Contract

Depends on Experience

Data Scientist - Senior Job#822

Springfield, Virginia

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Today

Data Scientist - Senior Location: Springfield, VA TS/SCI REQUIRED Current CI polygraph is required immediately after starting (or already within scope) Position Responsibilities: Experience working with AI/ML technologies and data systemsExperience working with multiple file types including geospatial file formats, JSON, XML, etc.3+ years of experience doing quantitative analysis, developing visualizations, and processing complex data to create data-driven insightsDevelopment experience in P

Full-time

Data Modeler

McLean, Virginia

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Today

Senior Data Modeler They should have exposure to mongodb and mortgage experience The Role We are seeking a Senior Data Modeler to design, develop, and optimize data models that support complex financial systems. You will work closely with cross-functional teams to translate business requirements into robust data structures, enabling high-quality analytics and data-driven decision-making. This role requires strong expertise in SQL, Snowflake, and modern data modeling techniques, alongside domain

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Contract

Data Engineer

Herndon, Virginia

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Today

Seeking a motivated, career and customer-oriented Data Engineer to join our Partner's team in Herndon VA. The Data Engineer will leverage their expertise with Python to support the customer's data pipelines and related applications, from collection to ingestion, and ensure the integrity and security of data systems. You will play a critical role in delivering relevant and actionable cyber data to the right customers in a format that is normalized and actionable by cyber analysts and data scienti

Full-time

Senior REACT JS Developer

Washington, District of Columbia

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12d ago

Role :OCTO - Senior REACT JS DeveloperLast date for submission: 08/16/2026Location:OCTO - 200 I Street, SE Washington DC 20003Exp : 15+Need local to DC, MD, VA onlyDescription:The role will require you to design, develop and test using React JS technologies which will facilitate application development and implementation from development to QA to production. You will work to gain an understanding of the current system infrastructure, security needs, network considerations, methodologies.In this

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Third Party, Contract

Depends on Experience

Sr. Splunk Engineer - TS/SCI with CI Poly | Chantilly, VA

Chantilly, Virginia

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Today

Optiv + ClearShark is looking for a highly skilled Sr. Splunk Engineer to join our cybersecurity team. The ideal candidate will be responsible for implementing, managing, and optimizing the Splunk platform to automate and orchestrate security operations. This role requires expertise in developing custom playbooks for various stakeholders, integrating with other security tools, and enhancing the overall security posture of the organization. How you'll make an impact Create custom Splunk reports,

Full-time

PHP Developer

Rockville, Maryland

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Today

Axiom Consultants, Inc, is seeking a skilled PHP Developer to provide support to the NOAA Fisheries Greater Atlantic Regional Fisheries Office (GARFO). Responsibilities: Develop, maintain, and enhance web-based applications using PHP 7 and modern frameworks such as CodeIgniter 4.Write, optimize, and troubleshoot SQL scripts and queries for Oracle and PostgreSQL databases.Collaborate with cross-functional teams to understand project requirements and implement user-friendly, secure, and scalable

Full-time

USD 95,000.00 - 105,000.00 per year

Software Engineer (Software Defined Storage)

Manassas, Virginia

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7d ago

Job Description Who we are Lockheed Martin is a global leader in aerospace, defense, and technology solutions. Our Manassas campus is a thriving center of engineering expertise, fostering a culture that encourages creativity, excellence, and the creation of exceptional products. Our team is made up of dedicated professionals who are passionate about pushing the boundaries of what's possible. What We're Doing At Lockheed Martin, we're at the forefront of cutting-edge technology and innovation.

Full-time

USD 76,500.00 - 134,895.00 per year

Software Engineer

Chantilly, Virginia

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Today

Overview We are seeking an experienced Cloud Software Engineer / AWS Data Engineer to design, develop, and maintain secure cloud-based applications and data solutions within a highly classified mission environment. This position requires strong hands-on experience with AWS cloud services, Python and Java development, Elasticsearch/OpenSearch, Linux, Docker, and infrastructure-as-code using the AWS Cloud Development Kit (CDK). What will you do? Design, build, and maintain secure web applicatio

Full-time

Drupal Developer with AI/GenAI Experience

Washington, District of Columbia

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4d ago

Position: Drupal Developer with AI/GenAI Experience Location: Washington, DC Fully Onsite Background Check: Mandatory (Candidate must have been in the U.S. for at least 3 years) Interview Process: Requires strong technical expertise Only location candidates can apply. Requirements 8+ years of Drupal development experience, preferably with Drupal 9/10/11. Strong hands-on experience with PHP, Symfony, Drupal APIs, custom module development, Composer, and Drush. Strong experience with REST AP

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Full-time, Third Party, Contract

Data Engineer

Herndon, Virginia

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Today

MANTECH seeks a motivated, career and customer-oriented Data Engineer to join our team in Herndon VA. The Data Engineer will leverage their expertise with Python to support the customer?s data pipelines and related applications, from collection to ingestion, and ensure the integrity and security of data systems. You will play a critical role in delivering relevant and actionable cyber data to the right customers in a format that is normalized and actionable by cyber analysts and data scientists.

Full-time

Software Engineer

Herndon, Virginia

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Today

MANTECH seeks a motivated, career and customer-oriented Software Engineer to join our team in Herndon VA. The Software Engineer will leverage their expertise with Python to support the customer?s data pipelines and related applications, from collection to ingestion, and ensure the integrity and security of data systems. You will play a critical role in delivering relevant and actionable cyber data to the right customers in a format that is normalized and actionable by cyber analysts and data sci

Full-time

Data Modeler-Onsite @ Mclean, VA-Need Locals Only

McLean, Virginia

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2d ago

Title Data Modeler Location-Onsite @ Mclean, VA-Need Locals Only Duration Contract The Role We are seeking a Data Modeler to design, develop, and optimize data models that support complex financial systems. You will work closely with cross-functional teams to translate business requirements into robust data structures, enabling high-quality analytics and data-driven decision-making. This role requires strong expertise in SQL, Snowflake, and modern data modeling techniques, alongside domain kno

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Contract

Depends on Experience

Application Developer Sr.

Washington, District of Columbia

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Today

Job Type: Full- Time Workplace Type: Hybrid Clearance: TS/SCI With CI Poly Job Summary Castalia Systems is seeking a Sr. Application Developer, to support our client. The ideal candidate will be able to apply comprehensive knowledge across key tasks and high impact assignments. Plan and lead major technology assignments. Roles and Responsibilities A qualified candidate will perform the following duties and responsibilities, but are not limited to: Evaluates performance results and recommends ma

Full-time

USD 190,000.00 - 200,000.00 per year

Palantir Data Engineer

Remote or Chantilly, Virginia

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Today

The Palantir Data Engineer leverages advanced Python skills within a small team to develop and implement data transformation pipelines in Palantir's environment. They will be responsible for all workflows, configuration, and management of a Palantir-based application. The Data Engineer will also integrate with external systems via API, parse API responses into usable data objects, design user interfaces, and develop custom functions with TypeScript. Data Engineer will conduct code reviews, solut

Full-time

JSON jobs in Chantilly, VA, USA