547 Results for

Contract Developer Jobs in Herndon, VA

Jobs

New!

Washington, DCToday

$120,000–$140,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. At least five years of full-stack web development experience using ASP.Net, C#, SQL Server, HTML, JavaScript and CSS with a strong understanding of Bootstrap's components, grids and responsive design.

New!

Washington, DCToday

$115,000–$145,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are seeking a highly skilled, experienced, and passionate Senior Application Developer with expertise in .NET, Angular, and TypeScript to join our dynamic Tech Services team.

New!

Washington, DCToday

$95,000–$125,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Our development strategy is agile and policy-driven, allowing us to identify attractive markets and rapidly advance projects that deliver both economic and environmental value to local communities.

New!

Dhs, MDToday

$102,000–$170,000 Per Year

Experience developing & deploying business applications using Microsoft’s Dynamics Power Platform Core Skills: C#, SQL, Net, D365, CRM SDK, CRM Plugins, PowerApps, Power BI, & Power Automate (formally known as Flow). Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.

New!

Bethesda, MD1 day ago

$69,550–$125,725

February 9, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. You’ll be at the cutting edge, working with state-of-the-art tech to shape naval training systems like CIAT - Combined Integrated Air and Missile Defense (IAMD) and Anti-Submarine Warfare (ASW) Trainer.

New!

Gaithersburg, MD1 day ago

$87,100–$157,450

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. As a member of a Scaled Agile software development organization, you will contribute to the technical execution of a program that integrates proven, globally deployed technologies with modern cloud-native and AI-enabled capabilities.

New!

McLean, VAToday

$113,000–$188,000 Per Year

Hands-on experience with SharePoint 2013 or newer to include both on-premise and SharePoint Online, SharePoint Designer to include creating custom workflow solutions, and PowerApps / Power Automate (M365 Suite of Products). Delivering services and solutions for clients using Microsoft’s PowerApps, Power BI, SharePoint, Power Automate, Microsoft Teams, custom development, and data integrations.

New!

Arlington, VA1 day ago

$107,900–$195,050

Work independently to ensure the reliability, availability, and security of the ENET solution in multiple environments by proactively monitoring the system, troubleshooting, and resolving issues to ensure high availability and continuity of operations. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

New!

Reston, VA1 day ago

$107,900–$195,050

This role combines hands-on development with technical leadership, focusing on architecting and implementing scalable Salesforce solutions integrated with Amazon Connect, AI-driven capabilities, and third-party government systems. Required Education & Experience: Bachelor’s degree in IT or related field and a minimum of 8 years of relevant experience or or Masters with a minimum 6 of relevant experience, progressive experience in Salesforce development and architecture, including Federal program experience.

New!

Tysons, VAToday

$140,000–$215,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.

New!

Bethesda, MD1 day ago

$107,900–$195,050

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. Leidos’ High Fidelity Simulation Business Area designs and delivers cutting-edge system-of-systems solutions that power world-class simulation, training, and analysis products for the U.S. Navy.

New!

Gaithersburg, MD1 day ago

$131,300–$237,350

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. April 1, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Washington, DC13 days ago

Job Duties and Responsibilities: - Responsible for solving business problems, business architecture, process optimization, business rules, business cases, business requirements, organizational change (communications), and UAT. A thorough understanding of the current state of the organization is necessary prior to recommending changes related to implementing a new business solution.

New!

Reston, VA4 days ago

Remote

$107,900–$195,050

Experience working in cloud environments (e.g., AWS, Azure, Google Cloud) and containerized architectures (e.g., Docker, Kubernetes)•Knowledge of multiple programming languages and ability to work across diverse tech stacks. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

New!

Gaithersburg, MD1 day ago

$87,100–$157,450

As a member of a Scaled Agile software development organization, you will contribute to the technical execution of a program that integrates proven, globally deployed technologies with modern cloud-native and AI-enabled capabilities. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

New!

Gaithersburg, MD1 day ago

$87,100–$157,450

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. April 1, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

New!

McLean, VAToday

$150,000–$220,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Lead new product initiatives building on a proven quality and reliability platform to improve developer experience across AI, API, CLI, and VPC uses, new product org!

New!

Herndon, VA1 day ago

This role will serve as the primary liaison between Real Estate, Design Engineering, Due Diligence, and other critical partner teams from initial planning, through design development to provide schedule forecasting, construction budgeting, and constructability guidance. - Experience understanding electrical and mechanical systems involved in critical data center operations including systems such as feeders, transformers, generators, switch gear, UPS systems, ATS units, PDU units, chillers, pumps, or air handling units.

New!

Arlington, VAToday

$120,000–$150,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. If you have a solid grounding in software engineering, continuous delivery, and computer science, and are looking for a career opportunity to grow and leverage those skills to the fullest while working on cutting edge technologies – Here is the place to be!

McLean, VA12 days ago

Temporary
Contractor
Full-time

Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. The ideal candidate will analyze and convert complex SQL queries to align with new data sources, work with Snowflake for data warehousing, and support technology delivery activities for business and support teams.

McLean, VA12 days ago

$55.24–$70.47 Per Hour
Temporary
Contractor
Full-time

Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. With more than 300 active clients, Genesis10 provides access to many of the Fortune 100 firms and a variety of mid-market organizations across the full spectrum of industry verticals.

Arlington, VA21 days ago

$60–$64 Per Hour
Temporary
Contractor
Full-time

While an hourly range is posted for this position, an eventual hourly rate is determined by a comprehensive salary analysis which considers multiple factors including but not limited to: job-related knowledge, skills and qualifications, education and experience as compared to others in the organization doing substantially similar work, if applicable, and market and business considerations. • Experienced in designing, implementing, and analyzing simulations involving extensive datasets, ensuring efficient data processing and accurate modeling outcomes.

Washington, DC19 days ago

Full-time
Employee

Overview We are looking for a Senior Backend Engineer to support federal software engineering efforts, primarily focused on operations and maintenance of Data.gov applications. The ideal candidate has strong Python and Flask experience, and is comfortable working in a dockerized development environment.

Washington, DC30+ days ago

This role focuses on designing and building Power BI reports and dashboards, working comfortably within the Azure ecosystem, and querying and analyzing data primarily using Snowflake SQL to extract insights and support decision-making. Note: Due to the confidential nature of our federal government Clients, this role requires the ability to pass a United States federal government Public Trust background check and is exclusively open to U.S. Citizens located within the United States.

Washington, DC30+ days ago

This role ensures the platform is stable, secure, and optimized for daily operations, including case management, reporting, workflow automation, and integrations. We are seeking a Salesforce Lead Developer to support a government‑contracted contact center by leading the design, development, and maintenance of Salesforce solutions.

Fort Belvoir, VA30+ days ago

Full-time

The Senior Software Developer supports the design, development, and delivery of data analysis tools, collaboration systems, and visualizations that address real‑world operational needs and capability gaps for government customers. Applied Research Associates, Inc. is an employee-owned international research and engineering company recognized for providing technically superior solutions to complex and challenging problems in the physical sciences.

Rockville, Maryland14 days ago

$70–$80 Per Hour

Hands-On Design & Development: Collaborate with technical leads and work closely with other developers to design and implement migration patterns, reusable components, and reference code that support teams transitioning legacy Java/J2EE applications to AWS. AWS Service Integration: Select and integrate AWS services based on application needs, such as EC2/ECS/EKS for compute, S3 for storage, RDS for databases, API Gateway for APIs, and Lambda for event-driven processing.

Sterling, VA30+ days ago

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. To attract and retain the highest quality staff, Northstrat provides a unique and versatile benefits package, the Individual Benefit Account (IBA), which places the power of choice in the hands of our greatest asset – the employee.

Washington, DC30+ days ago

Contractor

In doing so, AMS supports business processes to include, but not limited to, tracking the lifecycle of accountable and non-accountable assets; managing asset receipt, creating tracking, maintenance, disposal, and valuation processes; providing greater visibility into asset history; automating commonly used forms and requests for service; and embedding workflow and email notifications into everyday asset management processes and preventative maintenance tracking. Microsoft Excel Microsoft Word Excellent verbal and written communication skills Nice to have skills: 2+ years experience with java class extension in IBM Maximo 7 or later 2+ years experience with creating and editing xml files 2+ years experience with Mobile App Development for Android and/or iOS Experience working with agile implementation teams Experience with federal government contract work, preferably DOJ agencies

Washington, DC30+ days ago

Remote

Full-time

Programming Languages Assembly (Primary language) C C++ Integration Technologies Experience working with enterprise integrations such as: DB2 databases REST or enterprise APIs IBM MQ messaging File-based integrations SFTP data transfers Developmental Responsibilities Legacy system enhancements. Role: Senior Developer – Mainframe / Assembler (z/OS, TPF) Location: Remote or NEC Region Job Type: Long Term Contract Job Summary: Client is seeking a Senior Developer with deep experience in IBM z/OS mainframe environments, specifically working with Assembly language and C/C++.

Herndon, Virginia30+ days ago

$80,000–$128,000 Per Year

Peraton Overview: Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. Responsibilities: We are seeking a highly skilled and innovative Software Developer, Journeyman to join our team in the greater DMV area, supporting the Army National Guard.

Falls Church, VA30+ days ago

Contractor

About CORTEK: Founded in 2003, CORTEK is a distinguished Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in Chemical, Biological, Radiological, and Nuclear (CBRN) defense, Weapons of Mass Destruction (WMD) terrorism prevention, Counter-WMD (CWMD) support services, and Freedom of Information Act (FOIA)/Privacy Act support. Our proven track record includes 12 years of incumbency on DOS contracts supporting WMD threat mitigation and consequence management programs, as well as comprehensive support for the Defense Threat Reduction Agency's (DTRA) technical and strategic objectives across Physical and Biological Sciences, Engineering, Policy, and Operations.

Reston, Virginia30+ days ago

$146,200–$228,400 Per Year

Compensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. We believe our people are our greatest strength, and we consistently seek exceptionally skilled, mission‑driven professionals who care deeply about doing work that enriches lives and makes our nation safer.

Rockville, MD17 days ago

$85–$92 Per Hour

Bring a passion to stay on top of tech trends, experiment with and learn new technologies, participate in internal & external technology communities, and mentor other members of the engineering community. Encourage innovation, implementation of cutting-edge technologies, inclusion, outside-of-the-box thinking, teamwork, self-organization, and diversity.

Herndon, Virginia30+ days ago

$104,000–$166,000 Per Year

Implement APIs, automation logic, data workflows, and user interfaces; develop dashboards and analytics features (e.g., Power BI) and automate processes (e.g., Power Automate) to improve operational visibility. Peraton Overview: Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy.

Herndon, Virginia30+ days ago

$135,000–$216,000 Per Year

Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan. The EMMETT program, a next gen Space Domain Awareness (SDA) Indications and Warning (I&W) system, establishes a repository of resident space objects (RSOs), finds RSOs of interest, and provides data to ground operators.

Reston, Virginia30+ days ago

$78,900–$123,300 Per Year

Compensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. In this role, you will work across a portfolio of projects with other developers, engineers, data scientists, and subject matter experts (SMEs) to design, develop, and test software applications.

Reston, Virginia30+ days ago

$120,700–$188,725 Per Year

Compensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. Responsibilities: Noblis is seeking a highly skilled and motivated Senior (Python) Software Developer with an active Top Secret/SCI with Polygraph clearance to join our team in support of national security missions.

New!

200 I Street SE, DC6 days ago

Chantilly, Virginia7 days ago

$112,000–$179,000 Per Year

As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton Overview: Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy.

Rockville, MD17 days ago

$85–$92 Per Hour

Washington, DC20 days ago

Contractor

Minimum 8 years of hands-on experience with Oracle EBS (R12.x), including development using PL/SQL, Forms, Reports, OAF, Workflow Builder, and Web ADI. Support month-end, quarter-end, and year-end closing activities by ensuring data flow and transactions process smoothly.

Rockville, Maryland30+ days ago

$136,000–$144,000 Per Year

The Senior Software Developer is a technical leader responsible for designing, developing, testing, and maintaining software applications in support of internal business operations or external client needs. This role focuses on full-stack development using SQL and ASP.Net technologies and plays a critical role in ensuring software quality, system reliability, and maintainability.

Sterling, VA9 days ago

Full-time

Laansu is a robust and agile, women-owned, small business specializing in government contracting under executive leadership with more than a decade of experience in retaining and growing contracts awarded by the government of the United States. The Senior Software Developer will build, and support software products used by the Department of Transportation and the public at large to help ensure the safety of drivers and passengers on public roadways.

Herndon, Virginia14 days ago

$135,000–$216,000 Per Year

Washington, DC30+ days ago

Chenega Agile Real-Time Solutions (CARS) is seeking a Senior ServiceNow Developer to support the design, configuration, development, and maintenance of ServiceNow solutions in support of the Federal Communications Commission’s (FCC) Enterprise Technical Services (FETS) contract. The developer will work closely with the ITSM, cybersecurity, enterprise architecture, and quality service management teams to implement scalable, secure, and effective ServiceNow modules aligned to FCC business and operational goals.

Washington, Washington, DC30+ days ago

$65,200–$101,950 Per Year

Compensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. The Software Developer provides technical programming, automation, and data management support to the NAVSEA PMS 339 Surface Training Systems Program Office.

Fort Belvoir, VA30+ days ago

Full-time

The Journeyman Software Developer supports the design, development, and delivery of data analysis tools, collaboration systems, and visualizations that address real‑world operational needs and capability gaps for government customers. Applied Research Associates, Inc. is an employee-owned international research and engineering company recognized for providing technically superior solutions to complex and challenging problems in the physical sciences.

Fort Belvoir, VA30+ days ago

Full-time

The Junior Software Developer supports the design, development, and delivery of data analysis tools, collaboration systems, and visualizations that address real‑world operational needs and capability gaps for government customers. Applied Research Associates, Inc. is an employee-owned international research and engineering company recognized for providing technically superior solutions to complex and challenging problems in the physical sciences.

Herndon, VA30+ days ago

Synertex is seeking a UI/UX Frontend Software Developer with GIS/mapping experience working in a Federal Government, preferably DoD/IC, contracting environment. Collaborate with product management and engineering to define and implement innovative solutions for product direction, visuals, and user experience.

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Contract Developer Jobs in Herndon, VA

Jobs

Senior Application Developer (.NET/Angular)Jobot

Senior Application Developer (.NET/Angular/TypeScript)Jobot

Senior Associate Project Developer (Solar & BESS)Jobot

Dynamics 365 CE Senior DeveloperGuidehouse

Software DeveloperLeidos

Lead AI Software DeveloperLeidos

Senior Power Apps DeveloperGuidehouse

Application DeveloperLeidos

Salesforce Senior DeveloperLeidos

Senior Backend EngineerJobot

Senior Software DeveloperLeidos

Principal Software DeveloperLeidos

Oracle ERP FS - Procure to Pay PA - Hybrid - Long term contract - Washington, DC - B3648BTechnovision Inc

Senior Software Engineer – Developer Experience & Code QualityLeidos

Lead DevSecOps Software DeveloperLeidos

Lead Software DeveloperLeidos

Senior Product ManagerJobot

Sr. Pre-Construction Manager, AMER DCCD Pre-ConstructionAmazon Data Services, Inc.

Software EngineerJobot

Backend Python DeveloperGenesis10

Developer-UX User Interface ProfessionalGenesis10

Software DeveloperThe Computer Merchant, LTD.

Senior Python DeveloperADG TECH CONSULTING, LLC

Contract Power BI DeveloperData Society

Salesforce Lead Developer (Contact Center - Federal Contract)Systems Integration, Inc.

Senior Software DeveloperApplied Research Associates, Inc

Senior Software Developer (Java/J2EE/Application Modernization)CTIS, Inc.

Senior Software DeveloperNorthstrat

Sr Maximo Java Application DeveloperCollins Consulting, Inc

Senior Developer – Mainframe / Assembler (z/OS, TPF)Lumen Solutions Group Inc

Software Developer, JourneymanPeraton

Senior Software DeveloperCortek Inc

Senior Software DeveloperNoblis

Sr. Java Developer (Ping/IAM)Software Guidance & Assistance

Software Developer, SeniorPeraton

SR Java Software Developer - Space DomainPeraton

Software Developer - User Interface (UI) Multiple LevelsNoblis

Cleared Software Developer IIINoblis

OCTO - Senior ServiceNow DeveloperAdvanced American Technologies, Inc

Cyber Software Developer (Networking & Python), Senior Associate - TS/SCI w/polyPeraton

Sr. Java Developer (Ping/IAM)SGA Inc.

Sr DeveloperThink Tank, Inc.

Senior Software DeveloperGoldbelt, Inc.

Senior Java DeveloperLaansu

Software Developer - Big Data (Space Domain)Peraton

Senior ServiceNow DeveloperChenega Corporation

Software DeveloperNoblis

Journeyman Software DeveloperApplied Research Associates, Inc

Junior Software DeveloperApplied Research Associates, Inc

UI/UX Frontend Software DeveloperSynertex LLC

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