2,941 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

Washington, DC

Remote

$72.07 / hour

This position requires strong technical expertise, leadership experience, and the ability to communicate effectively with both technical teams and business stakeholders. ServiceNow Development Design, develop, and implement solutions across ServiceNow modules, including: ITSM, ITOM, ITAM, CMDB, HAM, and CSM.

Today

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

Reston, VA

This role involves developing production-grade microservices using Java 21 and Java 25, implementing clean and consistent API contracts, and ensuring secure, reliable integration with internal and external systems. Software Developer (Microservices) (Remote): Description: The Microservices Developer will be responsible for designing, building, and maintaining scalable backend services that power the platform's RESTful APIs.

5 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

Reston, VA

Effective verbal and written communication skills, especially for collaborating on mainframe integration with Java developers and migration planning. • Experience with test automation in unit tests, functional tests, regression tests and performance tests.

1 day 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

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

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

Fort Meade, MD

$90 / hour

Identify trends and find patterns in unstructured and semi-structured customer data that can be used to create a more positive customer experience and increase overall network performance. Design and build ServiceNow Applications and integrations to other applications and platforms, including architecture, languages, best practices, and methodologies in an Agile Scrum 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

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

Washington, DC

Remote

$90.94 / hour

Work at the direction of the program manager to support the full lifecycle development of custom Oracle Applications, primarily using the Oracle APEX toolset. Provide support with PL/SQL, Java, Windows PowerShell, and Unix shell scripting with familiarity with built-in PLSQL packages and procedures.

9 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

McLean, VA

Remote

Collaborate with clients, solution architects, product owners, UX designers, business analysts, platform engineers, and development teams to deliver resilient software products that meet functional and non-functional requirements. • Experience with AWS Lambda, API Gateway, Step Functions, EventBridge, EKS/Kubernetes, RDS PostgreSQL, MongoDB, Redis, Memcached, Elasticsearch, Docker, and modern monitoring/observability tools.

3 days ago

Arlington, VA

Work with cross-functional teams, including architects, product managers, and other developers, to deliver high-quality software solutions. • Work closely with cross-functional teams to build scalable, high-performance applications leveraging cloud native and cloud agnostic services.

3 days ago

McLean, VA

Remote

The Senior Full Stack Developer will collaborate with client stakeholders, solution architects, product owners, UX designers, platform engineers, business analysts, and cross-functional technical teams to design, build, test, and deploy resilient software solutions. The ideal candidate has strong hands-on experience with Python and JavaScript, modern web frameworks, RESTful APIs, microservices, cloud-native development, and AWS-based application delivery.

3 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

22102, VA

Remote

System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Design, build, test, and deploy full-stack applications using Python, Django, and modern JavaScript frameworks .

9 days ago

Falls Church, VA

$90,000–$100,000 / hour

Responsibilities Support the delivery of client solutions using advanced analytics, exploratory data analysis, data wrangling, and ETL processes within a SAFe Agile environment. Derive insights from data and build robust data applications using analytics and coding tools (e.g., Python, R, Alteryx, SQL, SAS).

3 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

Rosslyn, VA

Work with data scientists and analysts to rapidly design, implement, test, and deploy applications capable of tackling complex analytical tasks using large datasets. The selected individuals will need to live in the DC Metro area to report to HQ in Arlington, VA twice per month (a minimum of 2 days per 2-week period on average) .

1 day ago

Leesburg, VA

$70–$90 / hour

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Configure and customize ServiceNow including UI policies, business rules, client scripts, flows, catalog items, and update sets.

8 days ago

Merrifield, VA

$42 / hour

Seeking knowledge of Adobe Target, Adobe Analytics, taxonomy, digital asset management, content management systems (CMS), search engine optimization (SEO), and online/digital metrics using industry best practices. Collaborate with Marketing and Digital staff and other internal business units/vendors to ensure timely/accurate implementation of digital content enhancements/requirements to support business needs and member experience.

6 days ago

Bethesda, MD

$170,000–$190,000 / year

While the Senior Application Architect partners closely with cloud, operations, data, and cybersecurity teams, the primary accountability is for application architecture and application design decisions, including ownership of RESTful services and application integration strategy from concept through implementation and long-term evolution. The Senior Application Architect works closely with engineering teams, product owners, operations, and security to design and guide the implementation of modern, reliable, and well-integrated application solutions.

6 days ago

Fort Meade, MD

$140,000 / hour

System One, and its subsidiaries including Joulé, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Lead the designing, developing, documenting, testing, debugging, and maintenance of hardware or software based CNO capabilities.

3 days ago

Tysons, VA

$140,000–$215,000 / year

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4 days ago

McLean, VA

Remote

Support alignment with security and compliance frameworks such as CIS Benchmarks, NIST, HIPAA, FedRAMP, and SOC 2. • Assist with incident detection, investigation, response, and audit trail maintenance across AWS accounts and services. • Strong hands-on knowledge of AWS services, including EC2, S3, RDS, Lambda, ECS/EKS, CloudFront, Route 53, IAM, CloudTrail, AWS Config, and KMS.

3 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

Leesburg, VA

$70–$90 / hour

Develop, configure, and maintain ServiceNow applications with emphasis on Service Catalogs and Request Workflows within ITSM and HRSD modules. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.

9 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

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

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

$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

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

Greenbelt, MD

Full time

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

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

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

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

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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

Senior ServiceNow Developer System One

Mid-Level Qlik Developer Credence

Software Developer (Microservices) PlanIT Group

SharePoint Developer Calibre Systems

IT - Software Developer IV PlanIT Group

Senior AI Developer NuAxis Innovations

Front-End Developer NuAxis Innovations

Senior Full Stack Developer NuAxis Innovations

ServiceNow Developer System One

Software Developer Associate General Dynamics Information Technology

Senior ServiceNow Developer Credence

Software Development V (SME Oracle APEX Developer) System One

Junior NextGen Developer DCS Corporation

Software Developer Leidos

Senior Software Developer Leidos

Lead Full-Stack Developer System One

Java Developer (Secret Clearance) System One

Senior Full Stack Developer System One

Appian Software Developer/Integrator Leidos

Full-Stack Developer System One

Data Developer System One

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)

Full Stack Developer PlanIT Group

ServiceNow Developer Senior System One

Web Content Developer System One

Application Architect System One

Software Developer (CNO) System One

Senior Software Engineer Jobot

AWS Cloud Security Engineer System One

Lead Security Engineer Dev Technology Group

ServiceNow Consultant System One

ServiceNow Architect Capgemini Government Solutions LLC

Principal Software Engineer (SWE-4) Leidos

Cloud Architect / Engineer Leidos

SME Oracle APEX Developer The Computer Merchant, Ltd

Junior java microservices developer/Jr data analyst-Remote SynergisticIT

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)

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

Applications Developer - Level 3 CACI

Application Developer DTC Global Services

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