2,946 Results for

Application Developer Jobs in Rockville, MD

Jobs

Fairfax, VA

$135,000–$165,000

Overview: GovCIO is currently hiring a highly skilled Senior Application Developer with an active Secret clearance to design, build, and modify application software using programming languages such as Java, ColdFusion, JavaScript, and C#. Qualifications: Bachelor's degree in Computer Science, Engineering, or related field with 12+ years of experience with large integrated projects and 5+ years of professional experience in Java development, preferably in federal or defense contracting environments.

5 days ago

Rockville, MD

Remote

$75,000–$110,000 / year

p>Savantage Solutions is seeking a Oracle APEX Developer to join our core engineering team supporting Altimate, a proprietary Federal Financial Management System deployed for federal agency clients. Factors considered when extending an offer include but are not limited to, job responsibilities, education, experience, knowledge, skills, certifications, seniority, performance, and alignment with market data.

10 days ago

Washington, DC

Full time

Work includes containerizing services with Docker and deploying to AWS (ECS/EKS, plus supporting services like RDS, S3, and CloudWatch), alongside ongoing bug fixes, performance tuning, and technical debt reduction. This role is a full-stack developer position building and maintaining Agency applications end to end, ReactJS front-end and Python/FastAPI back-end, with PostgreSQL for data.

3 days ago

Chantilly, VA

Intern

With the experience of hundreds of thousands of successful implementations, including macro, DAS, Small Cells, and Wi-Fi, the world’s leading network operators and OEMs trust our knowledge and experience to plan, perform, troubleshoot, and implement an array of technologies and solutions. This is a unique opportunity for a college student to gain hands-on experience working on an established, high-scale project, where you will contribute to real-world features that power global wireless networks.

30+ days ago

Springfield, VA

Responsibilities include: Custom Solution Development: Design and build custom SharePoint components like web parts, extensions, and site templates using the SharePoint Framework (SPFx). Certifications: Highly valued credentials include the Microsoft 365 Certified: Developer Associate (MS-600) and the Power Platform App Maker Associate (PL-100).

9 days ago

Washington DC, DC

This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Solution Architects, UX/UI Designers, QA Engineers, and DevSecOps teams to deliver end-to-end solutions across the full software development lifecycle. The Senior Full Stack Developer is responsible for designing, developing, integrating, and supporting secure, scalable, and high-performing enterprise web applications using modern cloud-native technologies.

14 days ago

Washington DC, DC

This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, UX/UI Designers, Solution Architects, Back-End Developers, and QA Engineers to deliver secure, scalable, and intuitive user interfaces that meet business, technical, and accessibility requirements. · Participate in Agile development activities including backlog refinement, sprint planning, code reviews, sprint demonstrations, and continuous integration.

14 days ago

McLean, VA

The Qlik Developer will collaborate with government stakeholders, functional analysts, data engineers, and development teams to design and implement data visualization solutions that improve operational visibility, reporting accuracy, and decision-making across the enterprise. This role requires experience developing scalable Qlik applications, integrating multiple data sources, and supporting Agile software development initiatives in a secure DoD environment.

Today

Annapolis Junction, MD

$66,602–$80,500 / year

A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development.

30+ days ago

Washington DC, DC

The Senior AI Developer serves as the lead technical resource responsible for designing, developing, integrating, and supporting enterprise Artificial Intelligence (AI) and Machine Learning (ML) solutions that enhance business applications, automate processes, and improve operational efficiency. This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Subject Matter Experts (SMEs), Solution Architects, developers, and stakeholders to deliver secure, scalable, and responsible AI solutions that align with business and mission objectives.

14 days ago

Tysons, VA

$150,000–$175,000

You will also manage and participate in designing and developing solutions using various ServiceNow modules and features including CSM, S2P, APO, Integration Hub, Flows, Business Rules, Script Includes, Service Catalog, Service Portal, Asset Management, CMDB, AI Agents, and other ServiceNow modules, as required. Credence has an immediate need for a Senior ServiceNow Developer who will assist in solutioning and development of applications leveraging ServiceNow OOTB modules and customization as necessary to ensure the required business outcomes are delivered.

8 days ago

California Maryland, MD

Remote

$73,160–$120,000 / year

DCS is seeking an experienced Junior Developer to join its teams developing exciting and modern Air Force and Navy next-generation mission planning software on an Agile/SAFe team. Contribute to software development as part of a team contributing to a multi-team, multi-organization enterprise using Scaled Agile Framework (SAFe).

9 days ago

Gaithersburg, MD

$69,550–$125,725

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 . June 11, 2026 For 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.

8 days ago

Gaithersburg, MD

$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 . June 8, 2026 For 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.

8 days ago

Bethesda, MD

$107,900–$195,050

We integrate off the shelf and new development efforts to sustain and enhance existing architecture and by leveraging cloud-based computing, artificial intelligence (Al), machine learning (ML) and cross-domain transfer systems to provide cutting edge requirements management, task coordination, data exploitation, enrichment, triage, and analytics capabilities to Defense and Intelligence Community members. Leidos is designing, developing, deploying, and operating a DoD-wide Tasking, Collection, Processing, Exploitation, and Dissemination (TCPED) workflow management platform for Open Source Intelligence (OSINT).

8 days ago

McLean, VA

However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. The disclosed range takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to, geographic location, relevant education, qualifications, certifications, experience, skills, seniority, performance, sales or revenue-based metrics, and business or organizational needs.

30+ days ago

McLean, VA

30+ days ago

Laurel, MD

$105,000–$290,000

It requires designing AI-native architectures, orchestrating tool-using agents, and rapidly iterating on prototypes that demonstrate functional, outcome-driven impact. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.

8 days ago

Laurel, MD

$100,000–$245,000

The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges. We seek experienced reverse engineers and developers who will build inventive cyber capabilities leveraging novel reverse engineering and exploitation techniques.

8 days ago

Tysons, VA

$140,000–$215,000 / year

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4 days ago

Suitland, MD

$120,000–$190,000 / year

As a Washington Post Top Workplace award winner for the past THIRTEEN years in a row, the Top Workplaces USA for the past five years, and a recipient of the Companies As Responsive Employers (CARE) Award for the past six years, Dev Technology employees enjoy: Generous and flexible time-off policy. Collaborate with application developers, data engineers, systems engineers, and OIS to identify and mitigate vulnerabilities, and provide expert security consultation to development teams.

Today

Annapolis Junction, MD

$131,300–$237,350

Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. Seeking an experienced and talented software developer to join an existing team that develops and manages software products and tools integral to discovering new mobile data related to the mission.

8 days ago

McLean, VA

The disclosed range takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to, geographic location, relevant education, qualifications, certifications, experience, skills, seniority, performance, sales or revenue-based metrics, and business or organizational needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.

30+ days ago

Washington, DC

$131,300–$237,350

Proven expertise with Generative AI infrastructure, including: Production-ready Retrieval-Augmented Generation (RAG) pipelines, Scalable vector databases (e.g., Pinecone, Weaviate, Milvus, FAISS, or managed services) with indexing, clustering, and optimized retrieval, GPU/TPU compute clusters, managed container orchestration (Kubernetes/EKS/AKS/GKE), and auto-scaling for large language model (LLM) workloads. Demonstrated experience implementing enterprise security and compliance frameworks (SOC 2, ISO 27001, HIPAA, PCI-DSS, CMMC, FedRAMP, etc.), including encryption, threat monitoring, and zero-trust architectures.

11 days ago

Washington, DC

Remote

$79,000–$142,000 / year
Full time

Since 2010, Synergisticit has helped thousands of candidates land full-time jobs at tech leaders like Google, Apple, PayPal, Visa, Western Union, Wells Fargo, Intel, Paypal, JPMC, Wayfair, BOA, CITI and hundreds more with Job offers of $95k to $154k. SynergisticIT JOPP is good for entry-level software engineering candidates because it helps address the key areas where applicants often fall short: current skills, hands-on projects, resume alignment, interview confidence, and job-search execution.

18 days ago

Washington, DC

$90–$95 / hour
Contractor

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. - Work at the direction of the program manager to support the full lifecycle development of custom Oracle Applications, primarily using the Oracle APEX toolset.

29 days ago

Greenbelt, Maryland

GAMA-1 is seeking a remote Software Developer Web Applications IV (Applications Developer) with experience in the research, design, and development of computer and network software or specialized utility programs. The Software Developer Web Applications IV (Applications Developer r) will analyze user needs, develop software solutions, update software, or enhance existing software capabilities.

30+ days ago

Herndon, VA

Big data visualization and technologies to include: Data Visualization (D3.js, Chart.js, or Leaflet), Data Ingest (JSON, Kafka, Microservices, Elastic Search), Analytics (HIVE, SPARK, R, PIG, OOZIE workflows), Elasticsearch, Hadoop (HIVE data, OOZIE, Spark, PIG, IMPALA, HUE), COTS Integration (Knowi, MongoDB, Oracle, MySQL RDS, Elastic, Logstash, Kibana, Zookeeper, Consul, HADOOP/HDFS), Docker and Chef. Additional Skills We'd Like to See: Large scale software development experience: Develop/modify/troubleshoot Angular and TypeScript code, State Management (NGRX/NGXS), COTS Integration, Agile development experience, familiarity with Scaled Agile Framework (SAFe) using VersionOne.

30+ days ago

Herndon, Virginia

Full time

The candidate will be part of a team of Software Developers, ETL Developers, and Data Scientists to enhance existing production applications and build out new web services on a routinized production cadence to meet the evolving needs of users. Overview: VTG is currently seeking a Full Stack Web Application Developer (Expert) in Herndon VA to work on a suite of services that will supply users with tools to automate a wide range of enterprise-wide applications and data centric mission management applications.

30+ days ago

Herndon, VA

Additional Skills We'd Like to See: Large scale software development experience: develop/modify/troubleshoot JAVA code, COTS Integration, Agile development experience, familiarity with Scaled Agile Framework (SAFe) using VersionOne, Angular, DOJO, Oracle Weblogic, Tomcat, Oracle DBMS, Postgres DBMS, SQL, PL/SQL, UNIX/LINUX operating Systems, HTML, Selenium, JavaScript, EJB, Webservices, Microservices leveraging Docker & Kubernetes, REST, XML, UML, Eclipse or Netbeans, Deployment architectures including Continuous Integration Pipeline build concepts leveraging: Docker, Git / JIRA, Kubernetes, Jenkins, Conductor, Kafka/Zookeeper, Consul, CMDB. Big data technologies to include: Data Ingest (JSON, Kafka, Microservices, Elastic Search), Analytics (HIVE, SPARK, R, PIG, OOZIE workflows), Elasticsearch, Hadoop (HIVE data, OOZIE, Spark, PIG, IMPALA, HUE), COTS Integration (Knowi, MongoDB, Oracle, MySQL RDS, Elastic, Logstash, Kibana, Zookeeper, Consul, HADOOP/HDFS), Docker and Chef.

30+ days ago

McLean, VA

Remote

Full time

The Application Developer will play a key role in delivering high-quality technical solutions that align with client needs and mission requirements, working closely with team members, stakeholders, and leadership. DTC Global Services, LLC is seeking a skilled and detail-oriented Application Developer to support the design, development, and maintenance of PRISM and related enterprise applications.

30+ days ago

HERNDON, VA

$200,000–$250,000 / year

Keywords: Application Developer, Java Developer, TS/SCI, Top Secret Clearance, Software Engineer, Linux, Windows, XML, COTS, FOSS, Herndon VA, Government Contractor, Troubleshooting, Systems Integration. Zachary Piper Solutions is seeking an Application Developer to support a company focused on delivering mission-critical technology solutions for government and defense initiatives.

3 days ago

Silver Spring, MD

Remote

$140,000–$168,000 / year
Full time

This effort supports the 2030 Census and American Community Survey (ACS) by modernizing and integrating applications and data systems, reducing technical debt and lifecycle costs, and enabling secure, scalable, near–real-time data processing and analytics. iWorks is supporting the Decennial Transformation and Application Modernization (DTAM) project, an initiative focused on transforming the U.S. Census Bureau's Decennial Census Programs into a modern, data-centric, cloud-smart IT environment.

29 days ago

Sterling, Virginia

The candidate will be part of a team of Software Developers, ETL Developers, and Data Scientists to enhance existing production applications and build out new web services on a routinized production cadence to meet the evolving needs of users. Nightwing is currently seeking a Full Stack Web Application Developer SME in Herndon VA to work on a suite of services that will supply users with tools to automate a wide range of enterprise-wide applications and data centric mission management applications.

30+ days ago

Sterling, Virginia

The candidate will be part of a team of Software Developers, ETL Developers, and Data Scientists to enhance existing production applications and build out new web services on a routinized production cadence to meet the evolving needs of users. Nightwing is currently seeking a Full Stack Web Application Developer - Expert in Herndon VA to work on a suite of services that will supply users with tools to automate a wide range of enterprise-wide applications and data centric mission management applications.

30+ days ago

Washington, District of Columbia

Short Description : Client is looking for a Senior ServiceNow Developer, you will play a crucial role in designing, developing, and implementing solutions within the ServiceNow platform. We are currently working on Various projects such as media entertainment, ERP Solutions, data warehousing, Web Applications, Telecommunications and medical to our clients all over the world.

22 days ago

Suitland, Maryland

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. The Applications Developer will be responsible for developing complex software solutions, ensuring code quality, and performing thorough debugging and testing.

30+ days ago

Washington, District of Columbia

Clients OIS/Application Support Division I is looking for a Senior Application Developers whose primary responsibilities include design, development, delivery and enhancement of Client-Server/Web-Based/Cloud-Based/Mobile Software Applications using application software development languages/environments with. The successful candidates will demonstrate the following knowledge, skills, characteristics, experiences and/or abilities: • Capable of design, develop and deploy applications that support users on the case and program management especially with ERAP application.

30+ days ago

Herndon, VA

The candidate will be part of a team of Software Developers, ETL Developers, and Data Scientists to enhance existing production applications and build out new web services on a routinized production cadence to meet the evolving needs of users. VTG is currently seeking a Full Stack Web Application Developer (Expert) in Herndon VA to work on a suite of services that will supply users with tools to automate a wide range of enterprise-wide applications and data centric mission management applications.

30+ days ago

Annapolis Junction, MD

Full time

The work is investigative, hands-on, and closely tied to mission outcomes, with room to pursue opportunities that emerge through your own research while staying aligned to customer needs. You will reverse engineer network traffic and web applications, develop Python-based automation, and help integrate new technologies into operational systems.

30+ days ago

Woodlawn, MD

$102,415–$133,142 / year

Customer Service - Works with clients and customers (that is, any individuals who use or receive the services or products that your work unit produces, including the general public, individuals who work in the agency, other agencies, or organizations outside the Government) to assess their needs, provide information or assistance, resolve their problems, or satisfy their expectations; know about available products and services; and is committed to providing quality products and services. Oral Communication - Expresses information (for example, ideas or facts) to individuals or groups effectively, taking into account the audience and nature of the information (for example, technical, sensitive, controversial); makes clear and convincing oral presentations; listens to others, attends to nonverbal cues, and responds appropriately.

30+ days ago

Washington, DC

Design and document modern application architectures, including web applications, microservices, APIs, data platforms, and cloud-native solutions using scalable, open-source technologies and design tools such as Lucidchart, Mural, or similar platforms. Experience with cloud-native technologies, including AWS certifications, Infrastructure as Code frameworks (Terraform, AWS CloudFormation, AWS CDK, Pulumi, or similar), containerized platforms, and advanced AWS services such as EMR and SageMaker.

7 days ago

Herndon, Virginia

Your work will include designing, building, and deploying solutions tailored to the needs of data scientists and key stakeholders, enabling data science, data engineering, and AI/ML workflows across the ecosystem. The ideal candidate has strong full stack development experience, solid scripting skills, and a collaborative mindset for working with end users and partners across the community.

30+ days ago

Herndon, Virginia

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 is seeking a Web Application Developer who will support our customer’s go-to product for a high-profile delivery function and will provide the opportunity of experience with innovative and cross-fabric digital solutions.

3 days ago

Bethesda, MD

Full time

Participate as a key member of an Agile team , contributing to the full software development lifecycle including requirements gathering, architecture, design, development, testing, and deployment. We work with U.S. government clients in health, civilian, and national security missions to build better technology products that impact our day-to-day lives.

16 days ago

Sterling, Virginia

$95,000–$110,000 / year

Position Overview The Full Stack Web Application Developer will design, build, and maintain a suite of internal and client-facing applications that support analytical, benchmarking, and performance-focused services. The organization works with large, complex enterprises to evaluate and improve the effectiveness of major business initiatives through advanced analytical tools and structured performance methodologies.

30+ days ago

Herndon, VA

$120,000–$175,000 / year

Keywords: TS/SCI, Top Secret, TS, CI Poly, Java, XML, COTS/FOSS integration and support, LINUX/Windows, Docker, Git / JIRA, Kubernetes, Jenkins, Conductor, Kafka/Zookeeper, Consul, CMDB, Angular, Spring Framework, Hibernate, Spring Boot, Maven, Spring MVC, SQL, JavaScript, Java Database Connectivity (JDBC), Tomcat, Web Services, Microservices, Junit, Core Java Developer, Junior Java Developer, Java Architect, Full Stack Development. Zachary Piper Solutions is actively seeking an Application Developer to collaborate on designing, developing, documenting, testing, and debugging software solutions that address critical mission challenges.

15 days ago

Fairfax, Virginia

$95,000–$155,000 / year
Full time

ASP.NET, C#, Python, Java, C/C++, CSS/JavaScript, SQL & SQL reporting, SQL Server, Visual Studio, GIT, CI/CS/CD, Artificial Intelligence (AI)/Machine Learning (ML), SharePoint, MS Power Platform, Microsoft Internet Information Server (IIS), MarkLogic, ORACLE, Oracle APEX . Perform complex programming and analysis for web and mobile applications and ETL processing; define requirements; write program specifications; design, code, test and debug programming assignments, document programs.

18 days ago

Fairfax, Virginia

Full time

18 days ago

Arlington, VA

Experience performing patching and codes-scanning; must be able to patch information assurance vulnerabilities, application/OS updates, and audit/apply required STIG settings. Familiar with AWS and AWS restricted environments using: S3, EC2, Cloud9, Redis, RDS MariaDB, Cloudwatch, and ImageBuilder many different types of data.

2 days ago

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Application Developer Jobs in Rockville, MD

Senior Application Developer Govcio LLC

Senior Oracle Apex Developer Savantage Solutions

Full Stack Software Developer Systems Plus, Inc.

Software Developer (Full Stack/Backend) Intern TeleWorld Solutions

SharePoint Developer Calibre Systems

Senior Full Stack Developer NuAxis Innovations

Front-End Developer NuAxis Innovations

Mid-Level Qlik Developer Credence

Software Developer Associate General Dynamics Information Technology

Senior AI Developer NuAxis Innovations

Senior ServiceNow Developer Credence

Junior NextGen Developer DCS Corporation

Software Developer Leidos

Senior Software Developer Leidos

Appian Software Developer/Integrator Leidos

ServiceNow Developer Capgemini Government Solutions LLC

Senior ServiceNow Developer Capgemini Government Solutions LLC

AI-Enabled Cyber Capabilities Developer Johns Hopkins Applied Physics Laboratory (APL)

Reverse Engineer and Offensive Cyber Developer Johns Hopkins Applied Physics Laboratory (APL)

Senior Software Engineer Jobot

Lead Security Engineer Dev Technology Group

Principal Software Engineer (SWE-4) Leidos

ServiceNow Architect Capgemini Government Solutions LLC

Cloud Architect / Engineer Leidos

Junior java microservices developer/Jr data analyst-Remote SynergisticIT

SME Oracle APEX Developer The Computer Merchant, Ltd

Software Developer Web Applications IV (Applications Developer) GAMA-1 Technologies

Web Application Developer - Front End Reinventing Geospatial, Inc. (RGi)

Application Developer - Expert VTG

Application Developer - Java Reinventing Geospatial, Inc. (RGi)

Application Developer DTC Global Services

Application Developer Zp Group Llc

Lead Application Developer / DTAM / (Hybrid) [Contingent] iWorks Corporation

Application Developer- Full Stack (SME) Nightwing Intelligence Solutions

Applications Developer - Expert Nightwing Intelligence Solutions

Sr ServiceNow Application Developer AHU Technologies

Applications Developer - Level 3 CACI

Applications Developer Senior (.NET) AHU Technologies

Application Developer - Expert VTG.

Senior Application Developer Intelliforce-IT Solutions Group

Node-React Full Stack Web Application Developer - DHA Social Security Administration

Full-Stack Application Developer Tria Federal

Software Application Developer Swift

Web Application Developer with Polygraph CACI

Lead Application Developer Analytica

Web Application Developer (Fully Onsite) Latitude

Application Developer (Must have active Top Secret) Zp Group Llc

Senior Application Developer/Software Engineer TekSynap

Application Developer/Software Engineer TekSynap

Technical Consultant - Software Application Developer Saliense Consulting

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