1,003 Results for

Application Developer Jobs in Reston, VA

Jobs

Germantown, MD26 days ago

$125,000–$145,000 Per Year
Contractor
Full-time

Advanced Azure developer skills using .NET technologies, App Service and SQL . Experience with version control systems, frameworks and tools relevant to application development .

New!

West McLean, VA1 day ago

$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.

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Washington, DC1 day ago

$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, DC1 day ago

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

New!

Arlington, VA2 days 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!

Germantown, MD5 days ago

$100,000–$150,000 Per Year

6 – 8 years+ experience designing, developing, testing, and maintaining custom Jira solutions, software development, particularly with Java, JavaScript, Relational databases (SQL and SQL Managed Instance). Senior Applications Developer, highly proficient in leading and independently maintaining, developing, testing and delivering high quality, enterprise-wide solutions.

Washington DC, DC22 days ago

Working at Samsara means you’ll help define the future of physical operations and be on a team that’s shaping an exciting array of product solutions, including Video-Based Safety, Vehicle Telematics, Apps and Driver Workflows, and Equipment Monitoring. • Bachelors in Computer Science, Engineering or related field with 8+ years of software development experience or Masters in Computer Science, Engineering or related field with 6+ years of software development experience with a focus on cloud technologies.

Washington, DC11 days ago

$140,000–$180,000 Per Year

This role will work as part of the Sales Engineering team and engage directly with customers on-site, in a hybrid format, or remotely, as required by each customer, including the potential for occasional short-term travel to customer locations across the United States. Successful Software Developer's demonstrate competency in integrating advanced technologies into existing business processes, building new functionality, ensuring successful software deployments, and working closely with customers.

Laurel, MD8 days ago

$105,000–$290,000

The role involves working closely with business analysts, stakeholders, and technical teams to translate requirements and implement new features, customize workflows, and ensure smooth system integrations. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

New!

Washington, DC1 day ago

Design, code, test, and debug computer programs, independently or as part of a team, using computer languages identified and available in the Infrastructure Tool Kit (ITK). • Maintain contact, as designated, with the team leader, customers, contractors, and equipment vendors to monitor progress and coordinate varied project stages.

New!

Washington, DC1 day ago

$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!

Mclean, VA1 day ago

$120,000–$135,000

Credence has an immediate need for a skilled ServiceNow professional to support the development and configuration of SPM by collaborating with cross-functional teams to ensure the successful delivery of solutions that align with business goals and requirements. We practice servant leadership and believe that by focusing on the success of our clients, team members, and partners, we all achieve greater success.

New!

Gaithersburg, MD2 days 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!

Merrifield, VA5 days ago

The ideal candidate will hold a Bachelor’s or Master’s degree in Software Development (or a related field) from an accredited university and demonstrate proficiency in modern development tools and languages. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.

New!

Bethesda, MD2 days 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!

Arlington, VA1 day ago

List of tasks to be performed: • Work with GIS (Geographic Information Systems) software and platforms, along with programming languages and tools for web mapping and spatial data management. o Application Programming Interfaces (APIs) like ESRI Map APIs, Leaflet, and OpenLayers to integrate mapping and geospatial functionalities into web applications.

New!

Columbia, MD4 days ago

$150,000–$220,000

We are seeking a Full-Time Software Developer to support product enhancement and system integration efforts within classified environments supporting federal missions. The ideal candidate thrives in production environments and is comfortable debugging live systems.

Washington DC, DC22 days ago

Remote

We provide engineering teams the platform capabilities, observability tooling, automated safeguards, incident management tooling, and safe feature release systems they need to deliver highly available systems, ship features with confidence, and investigate and mitigate incidents faster. OPX is focused on raising the bar for system stability, resilience, and reliability across Samsara -- building automated safeguards that protect production, ensuring engineers get the right signals at the right time, and giving teams the visibility they need to stay in control of their services.

New!

Quantico, VA6 days ago

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. • Build web applications using JavaScript, JQuery and other client side technologies such as Vue JS.

New!

Washington, DC1 day ago

ServiceNow Application Development experience in two or more of the following areas: • Hands-on experience configuring and developing in ServiceNow, including form and field creation/updates (backend and/or Studio), Client Scripts, Business Rules, Catalog Items and scripting, group and role administration, flows (Flow Designer), notifications, email configuration, and scheduled jobs. ServiceNow Developer (Remote): Description: • ServiceNow Software Developer with minimum 4 years development experience in ServiceNow, • required CSA Admin certification, • strong oral and written communication skills and ability to leverage AI in their daily work.

New!

Gaithersburg, MD2 days 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!

Gaithersburg, MD2 days 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.

New!

Bethesda, MD2 days 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, MD2 days 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!

Reston, VA5 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!

Reston, VA2 days 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!

Arlington, VA1 day ago

You will architect and implement scalable agent frameworks that integrate LLMs, APIs, external tools, and enterprise systems to automate complex workflows for datacenter operations. We are seeking a Senior Agentic AI Developer to design, build, and deploy advanced autonomous AI systems capable of multi-step reasoning, tool usage, and dynamic decision-making.

New!

Reston, VA2 days 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 2, 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!

Rosslyn, VA4 days ago

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).

Reston, VA11 days ago

$150,000–$180,000

The area was master-planned to balance work, life, and nature, and it offers parks, lakes, and trails, great schools, a walkable town center with shops, restaurants, and entertainment and access to the Metro Silver Line for easy commuting into D.C. AREAS of RESPONSIBILITY. IMPACT: The ServiceNow Platform Lead Developer will be involved in overall platform implementation, driving innovation, ensuring system optimization, and be responsible for solution design for platform delivery.

Leesburg, VA10 days ago

$70–$90 Per 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.

New!

Laurel, MDToday

This position will be responsible for the improvement of FreshPoint’s market position and achieving financial growth by defining long-term strategic goals, identifying business opportunities, finding potential new customers and negotiating contracts to secure their business. Works with the senior teams across multiple operating companies on the development of a comprehensive business development strategy with a focus on local street, local contract, and retail segments.

New!

Columbia, MD4 days ago

$200,000–$220,000

The role requires strong debugging skills, the ability to trace application code issues, and experience working in complex enterprise production environments. This role focuses on product enhancement, integration optimization, and production system troubleshooting within large-scale government systems.

New!

Columbia, MD4 days ago

$225,000–$240,000

Relocation Assistance: AvailableWe are partnering with a highly respected national security customer to identify a Full-Time Agile Developer Level 4 supporting mission-critical product enhancement and cyber data integration initiatives. This developer will be responsible for enhancing and optimizing enterprise-level systems, integrating downstream platforms, and resolving production-level issues within secure environments.

New!

DC, DC3 days ago

$45–$57 Per Hour

Candidates should have demonstrated experience in the following areas: Georeferencing and digitizing real estate agreements and supporting documents into enterprise GIS systems. Job Description: The candidate should have significant experience working with the ArcGIS platform developing and maintaining geospatial data, maps and map layers.

New!

Bethesda, MD5 days ago

$170,000–$190,000 Per 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.

Washington DC, DC7 days ago

Integration Leadership: Architect and build complex integrations using IntegrationHub, REST/SOAP APIs, and MID Servers to connect ServiceNow with external systems (e.g., OKTA, salesforce, JIRA). • Workflow Automation: Design sophisticated workflows using Flow Designer and Virtual Agent, incorporating GenAI capabilities where applicable to enhance user experience.

Washington, DC8 days ago

$75–$80 Per Hour
Full-time
Employee

The Department of Human Services seeks a UI/UX Designer with 11years of experience in systems modernization, responsible for planning and developing wireframes, GUI prototypes, and component-level designs. The Department of Human Services is seeking a candidate with 11 years of experience serving as a UI/UX Designer on systems modernization projects.

New!

Tysons, VA1 day ago

$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.

McLean, VA13 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.

New!

Alexandria, VA1 day ago

This intern will work with a cross-functional team of software engineers, data scientists, and analysts supporting rapid prototyping and application development efforts, including AI-enabled solutions, service integrations, and cloud-based platforms. As a Software Engineering Summer Intern, you may support activities such as: Assist in designing, building, and testing software applications and prototypes using Python.

McLean, VA13 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.

New!

Arlington, VA1 day ago

$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!

Fairfax, VA16 days ago

$78,000–$136,000 Per Year
Temporary
Contractor
Full-time

SynergisticIT focuses on roles such as entry-level software programmers, Java full stack developers, Python/Java developers, Data Analysts, Data Engineers, Data Scientists, and Machine Learning Engineers. Many candidates spend months learning frameworks and finishing courses, only to freeze during technical screens, system questions, or behavioral rounds.

New!

Washington, DC1 day ago

Experience with creating and improving automation scripts across multiple technical stacks using Python, • Experience with troubleshooting and resolving issues related to both open source and commercial tools in public cloud environments. • Experience with AWS & Azure & the development of tools and processes to drive DevSecOps maturity by automating builds, regression testing, monitoring, and pushing releases across environments.

McLean, VA28 days ago

$245,100–$279,800 Per Year

Currently has, or is in the process of obtaining one of the following with an expectation that the required degree will be obtained on or before the scheduled start date: A Bachelors Degree in a quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Computer Science, Computer Engineering, Software Engineering, Mechanical Engineering, Information Systems or a related quantitative field). A Masters Degree in a quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Computer Science, Computer Engineering, Software Engineering, Mechanical Engineering, Information Systems or a related quantitative field) or an MBA with a quantitative concentration.

Laurel, MD11 days ago

$85,000–$195,000

You will work in a teamed environment to analyze live tactical sensor data; identify and solve problems that impact mission requirements; compare to physics-based simulations that provide unprecedented realism and new levels of understanding of system performance in operationally realistic environments in the presence of the world's most challenging threats. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

Leesburg, VA11 days ago

$70–$90 Per 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.

Arlington, VA22 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 DC, DC7 days ago

Technical Design: Lead the design of complex integrations, custom applications, and automated workflows across modules (CSM, ITSM, CRM, CPQ etc.). You will bridge the gap between complex business requirements and scalable technical solutions, ensuring that the platform remains robust, performant, and aligned with industry best practices.

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Application Developer Jobs in Reston, VA

Jobs

Applications Developer-SeniorGreenfield Data Solutions

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

Senior Application Developer (.NET/Angular)Jobot

Software Developer / Application SupportPlanIT Group

Application DeveloperLeidos

Applications DeveloperDunhill Professional Search

Lead Full Stack Developer, Business ApplicationsSamsara

Software DeveloperSystem One

Maximo DeveloperJohns Hopkins Applied Physics Laboratory (APL)

Software DeveloperPlanIT Group

Senior Associate Project Developer (Solar & BESS)Jobot

ServiceNow SPM Developer(s)Credence

Lead DevSecOps Software DeveloperLeidos

Software Developer (C++/C#/ASP.Net)System One

Senior Software DeveloperLeidos

GIS Map Developer - Level IIIPlanIT Group

Software Developer - Active TS/SCI with Full Scope PolygraphGables Search Group

Senior Software Engineer II, Developer Experience, Operational ExcellenceSamsara

.Net Developer (Secret Clearance)System One

ServiceNow DeveloperPlanIT Group

Lead AI Software DeveloperLeidos

Principal Software DeveloperLeidos

Software DeveloperLeidos

Lead Software DeveloperLeidos

Senior Software Engineer – Developer Experience & Code QualityLeidos

Salesforce Senior DeveloperLeidos

Senior Agentic AI DeveloperPlanIT Group

Salesforce DeveloperLeidos

Full Stack DeveloperPlanIT Group

ServiceNow Lead Developer – ITAMGables Search Group

ServiceNow Developer SeniorSystem One

Regional New Business DeveloperSysco

Agile Developer - ( TS/SCI FS Poly Required)Gables Search Group

Agile DeveloperGables Search Group

EAM DeveloperPEAK Technical Staffing

Application ArchitectSystem One

Senior CRM/CPQ Developer (ServiceNow)Boomi

UI/UX Developer - Local to DC/MD/VA onlyCSZNet, Inc.

Senior Backend EngineerJobot

Backend Python DeveloperGenesis10

Intern/Software EngineeringCalibre Systems

Developer-UX User Interface ProfessionalGenesis10

Software EngineerJobot

Entry level Java spring boot developer/ data scientistSynergisticIT

DevSecOps EngineerPlanIT Group

Sr. Director, Product Management - AI/ML Platform IntelligenceDiscover Financial Services

Radar Systems EngineerJohns Hopkins Applied Physics Laboratory (APL)

ServiceNow ConsultantSystem One

Software DeveloperThe Computer Merchant, LTD.

CRM/CPQ Architect (ServiceNow)Boomi

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