Senior Web Application Developer jobs in Chantilly – Browse 134 openings on RoboApply Jobs

Senior Web Application Developer jobs in Chantilly

Open roles matching “Senior Web Application Developer” with location signals for Chantilly. 134 active listings on RoboApply Jobs.

134 jobs found

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AnaVation LLC logo
Full-time|Hybrid|Chantilly, VA

AnaVation LLC focuses on technology solutions for clients in forensic and investigative fields. The company emphasizes growth, teamwork, and delivering value to both customers and employees. Role overview The Senior Web Application Developer designs, builds, and tests web-based enterprise software in a multi-enclave setting. This position is based in Chantil…

Apr 23, 2026
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Redhorse Corporation logo
Full-time|On-site|Chantilly, VA

About Redhorse Corporation Redhorse Corporation delivers data insights and technology solutions that support U.S. national interests. The company values proactive professionals who thrive as trusted partners and focus on technology-agnostic solutions for complex challenges. Role Overview: Lead Application Development Engineer This position is based in Chantilly, VA. The Lead Application Development Engineer will drive the design, development, and maintenance of an internal web-based tool for non-technical users. The tool will play a key role in improving government operations and supports mission-critical projects. Key Responsibilities Lead the technical design and implementation of a secure, scalable web application using AWS cloud services. Guide and mentor the engineering team throughout the development lifecycle. Ensure all solutions meet sponsor requirements, security protocols, and federal compliance standards. Promote innovation and best practices within the team. Work within classified sponsor systems as needed. What We Look For Extensive hands-on experience with AWS cloud services and application development. Proven track record leading engineering teams in secure and compliant environments. Background working on projects for government or within classified sponsor systems. Strong technical leadership and the ability to deliver solutions for non-technical end users.

Apr 14, 2026
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CGS Federal logo
Drupal Developer

CGS Federal

Full-time|Hybrid|Chantilly, VA

Drupal Developer Employment Type: Full-Time Department: Developer CGS Federal is actively looking for a talented Drupal Developer to join our dynamic team, providing extensive technical support for a major Federal agency. At CGS, we unite driven, highly skilled, and innovative individuals to tackle some of the most pressing challenges in government using state-of-the-art technology. Our mission thrives on collaboration, innovation, and anticipating the needs of our clients. We foster a supportive environment for professional development and continuous learning. Key Skills and Attributes for Success:- Proficient in site building, administration, and maintenance of Drupal websites- Capable of developing custom Drupal themes and modules- Collaborate with users to gather and understand their requirements- Experience in Agile methodologies, contributing to Sprint teams- Quick to adapt and learn new technologies or off-the-shelf software- Facilitate collaboration between back-end and front-end developers Qualifications:- Bachelor's Degree in Computer Science or a related field - Over 3 years of experience with Drupal, specifically versions 8 and 9- 5+ years of expertise in PHP, MySQL, HTML, and jQuery- 3+ years of experience in Drupal content modeling and site governance- 5+ years of proficiency with CSS, Sass, and USWDS- 3+ years of working with OEL, REHL, and CentOS- Familiarity with Apache server management- Knowledge of Google Analytics- Experience with Azure DevOps and Agile methodologies- Proficient in REST/SOAP APIs integration- Experience in CI/CD processes- Proficient in using Drush and Composer

Mar 12, 2026
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AnaVation LLC logo
Full-time|Hybrid|Chantilly, VA

AnaVation LLC is seeking a Senior Full Stack Developer to join its technical team in Chantilly, VA. This hybrid position focuses on building and enhancing a Digital Evidence Management System, with most work performed remotely and one day each week on-site at either the Chantilly office or a client location in Woodbridge, VA. Candidates must be able to complete a high-risk public trust background investigation. Role overview This role centers on developing scalable, data-driven applications that meet important business and mission requirements. The Senior Full Stack Developer will work closely with cross-functional teams to design, build, and maintain data pipelines, APIs, and analytical tools. The technology stack includes Java with Spring, JavaScript with React, and relational databases. Main responsibilities Design and build software systems that improve the collection, management, and analysis of digital evidence. Develop tools to automate and integrate data processes, aiming to enhance system performance. Document development work to support ongoing operations and future scaling. Update and improve existing tools as project goals and requirements evolve. Create custom solutions to address complex investigative workflows. Offer technical guidance for ongoing forensic and investigative projects. Requirements Experience with Java/Spring, JavaScript/React, and relational databases. Ability to collaborate with cross-functional teams. Eligible to complete a high-risk public trust background investigation. Willingness to work on-site in Chantilly, VA or Woodbridge, VA one day per week.

Apr 22, 2026
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usm2 logo
Contract|On-site|Chantilly

Join us at usm2 as a Senior Java Developer. We are seeking a talented developer with a strong background in Java programming to contribute to our innovative projects. You will work collaboratively within a dynamic team, leveraging your skills to create efficient and scalable applications.If you are passionate about technology and eager to tackle challenging problems, we want to hear from you!

Apr 9, 2015
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CGS Federal logo
Full-time|Hybrid|Chantilly, VA

Senior E-Discovery Application Administrator IIEmployment Type: Full-Time, ExperiencedDepartment: Legal ServicesCGS Federal is on the lookout for a passionate and experienced professional in the eDiscovery realm to provide IT legal support for a major federal agency. This role entails delivering comprehensive legal IT services utilizing a variety of software solutions. As a proficient programmer, you will independently develop, enhance, and maintain intricate programs that facilitate litigation applications, including support databases and related management systems.At CGS, we unite motivated, highly-skilled, and innovative individuals to tackle the government's most pressing challenges through advanced technology. We seek candidates who are eager to engage in government transformation, value teamwork, and can proactively address the needs of others. Our environment fosters support and encourages professional development through diverse learning opportunities.Key Responsibilities:Independently develop, modify, and sustain complex programming solutions.Translate program specifications into functioning code.Test, debug, and optimize programs to ensure data processing aligns with defined specifications.Revise programs to enhance efficiency and minimize processing time.Create user interfaces for data entry, implement standardized reports, and generate specialized and ad hoc reports as needed.

Feb 25, 2026
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CGS Federal logo
Full-time|Hybrid|Chantilly, VA

Join CGS Federal as a Senior Oracle APEX Developer and contribute to innovative IT solutions that support government operations. In this full-time role, you will engage in the full lifecycle development of custom Oracle applications utilizing the Oracle APEX toolset. Your responsibilities will include dynamic web content design, creating advanced reports, and supporting Oracle database objects. We value self-starters with excellent communication skills who can effectively understand and fulfill customer requirements. CGS Federal is dedicated to bringing together highly motivated and skilled professionals to tackle the government’s most complex challenges through advanced technology. We foster a collaborative environment that encourages professional growth and continuous learning.

Mar 6, 2026
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AnaVation LLC logo
Full-time|On-site|Chantilly, VA

Join our dynamic team at AnaVation and make a significant impact every day! We are on the lookout for a seasoned Senior Cloud Developer to architect and implement cloud service delivery models and frameworks. In this pivotal role, you will leverage DevSecOps best practices to automate cloud resources and support a resilient hybrid cloud infrastructure that ensures dependable, high-bandwidth services across our enterprise.Key Responsibilities• Design and develop cloud service delivery models and architectural frameworks to facilitate PaaS, IaaS, SaaS, and DaaS• Automate cloud resources utilizing DevSecOps best practices• Evaluate applications and provide migration recommendations to cloud environments• Formulate strategies for cloud service failure/recovery and cost optimization• Create and implement cloud applications, transitioning existing on-premises applications to the cloud• Troubleshoot cloud stacks and manage policies governing cloud services usage• Establish secure cloud environments, ensuring optimal availability and uptime• Work independently to design and develop innovative software products for cloud environments• Improve existing cloud software to enhance performance and scalability• Engage in Program Increments (PIs) and Agile Release Train (ART) activities• Support a multi-enclave environment• Collaborate with infrastructure and development teams for seamless integrationThis position requires an active Top Secret (TS) clearance and the ability to obtain SCI access with a CI polygraph. This role is on-site at our customer location in Chantilly, VA.

Dec 12, 2025
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AnaVation LLC logo
Full-time|On-site|Chantilly, VA

Join Our Innovative Team and Make an ImpactAt AnaVation, we recognize that it is our people who drive innovation and success. By investing in talented individuals, we empower them to create exceptional solutions for our clients and foster a vibrant workplace culture.Role Overview:AnaVation is on the lookout for a highly skilled Senior Software Developer to become a vital part of our team. This role involves developing, testing, and debugging software both new and existing. The ideal candidate will possess a thorough understanding of business applications along with the user, performance, quality, interface, and security requirements necessary to support a forensic and investigative ecosystem across various enterprise applications within a multi-enclave environment.Key Responsibilities:· Design, develop, test, and debug new software applications and enhance existing solutions.· Collaborate with technical teams to identify and resolve software issues.· Address customer feedback regarding software functionality and implement suggested improvements.· Oversee the implementation of desktop designs, testing protocols, security measures, and integration with standard software packages.· Integrate automated patching and deployment technologies into workflows.· Assist in the creation of comprehensive software user manuals.· Document applications, services, and environments to facilitate future maintenance.· Automate deployment and configuration updates for applications.· Engage in Program Increments (PIs) and Agile Release Train (ART) activities.· Provide support for a multi-enclave environment.· Work collaboratively with cross-functional teams to ensure cohesive integration.This position requires an active Top Secret (TS) clearance and the ability to obtain SCI access with a CI polygraph. The role is based on-site with our client in Chantilly, VA.

Dec 18, 2025
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CGS Federal logo
Full-time|Hybrid|Chantilly, VA

Join CGS Federal as a Senior Oracle APEX Developer II and play a pivotal role in delivering top-notch IT services. In this full-time position, you will be part of a dynamic Information Technology department that supports a wide array of services, including software application support, enterprise infrastructure, service desk operations, IT service management, deskside support, workstation engineering, telecommunications, mobility engineering, managed print services, Active Directory services, and video conferencing technology. The ideal candidate will be personable, articulate, and dedicated to swiftly and effectively addressing customer needs. A self-starter with the ability to work independently, you will possess excellent communication skills essential for interfacing with clients to accurately interpret requirements and mission objectives, translating them into actionable solutions. At CGS, we unite a motivated and skilled workforce to tackle the government's most pressing challenges using innovative technology. We value collaboration and encourage our team members to anticipate the needs of those around them. Our supportive environment fosters professional growth, offering numerous learning opportunities to enhance your career.

Mar 6, 2026
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Anavation LLC logo
Full-time|On-site|Chantilly, VA

Join our dynamic team at Anavation LLC as a Senior Software Developer, where you will play a crucial role in designing and implementing software solutions that drive innovation and efficiency. We are looking for a motivated individual who excels in a collaborative environment and is passionate about technology.

Mar 14, 2026
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Northstrat logo
Full-time|On-site|Chantilly, Virginia, United States

Join Northstrat as a Senior Full Stack Developer and be part of an innovative and collaborative team. This role requires a seasoned professional with a strong background in both back-end and front-end development. As a key player, you will leverage your expertise in various programming languages and frameworks to deliver top-notch solutions independently.Your responsibilities include developing and maintaining robust, scalable applications while collaborating with cross-functional teams to define and implement new features. You will utilize Java (including JEE and REST web services) for back-end development and optimize front-end applications using JavaScript frameworks like React, Angular, and Node.js.Additionally, you will work with databases such as Oracle, MySQL, or Postgres, and operate in Linux environments. Your contributions will span the entire product lifecycle, from requirements analysis to deployment, including participating in code reviews and architectural decisions.

Nov 26, 2024
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SOS International LLC logo
Full-time|On-site|Chantilly

Join SOSi as a Senior Full Stack/UI Developer where your expertise will support critical cyber analytic applications for a US government client in Chantilly, VA.In this pivotal role, you will design, develop, and maintain applications that enhance cyber analytics. Collaborating closely with cyber Subject Matter Experts (SMEs), data scientists, and engineers, you'll be instrumental in translating intricate technical requirements into intuitive user interfaces and resilient backend systems.

Feb 17, 2026
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Edgesource Corporation logo
Full-time|Hybrid|Chantilly, VA

General Application for Future Career OpportunitiesAre you looking to join a dynamic team but don’t see a current role that fits your skills? We want to hear from you!At Edgesource, we are continuously on the lookout for talented and motivated individuals who are enthusiastic about our mission and the difference we make. By submitting a general application, you position yourself for consideration for future roles across various departments as they become available.Who Should Apply:Individuals eager to join our team, even if there isn't a current opening that matches their profile.Professionals with transferable skills who are open to exploring diverse roles.Candidates passionate about our mission and who wish to stay informed about potential opportunities.What Happens Next:Our recruitment team evaluates general applications on a rolling basis. If your experience aligns with an upcoming or newly available position, we will reach out to initiate a conversation.In the meantime, we encourage you to frequently check our job postings for new opportunities that may align with your skills and interests.Thank you for your interest in joining Edgesource. We look forward to learning more about you.About EdgesourceAs a certified ISO 9001:2015 and CMMI Level 3 appraised small business, Edgesource delivers a wide range of technical solutions including software development, database management, enterprise networking, data center virtualization, and management support. We are committed to recruiting top talent to tackle the most pressing technical challenges facing our nation.At Edgesource, we value our employees as our greatest asset. We offer a comprehensive benefits package designed to support the well-being of our team members, including:Flexible PTO policy and 11 paid holidaysFlexible work schedules (Remote/Hybrid options)Medical, dental, and vision insurance, along with a flexible spending account (FSA)401(k) plan with company matchTuition and professional development supportCommuter benefitsBonus and employee referral programsOpportunities for career growth

Apr 7, 2026
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CGS Federal logo
Full-time|Hybrid|Chantilly, VA

E-Discovery Application Administrator IIEmployment Type: Full-Time, ExperiencedDepartment: Legal Services CGS Federal is on the lookout for a highly skilled E-Discovery Application Administrator II to provide comprehensive IT legal support services for a major federal agency. In this pivotal role, you will utilize your programming expertise to independently develop, modify, and maintain complex software applications that enhance litigation support databases, management systems, and analytical tools. At CGS Federal, we assemble dynamic and innovative teams tasked with addressing the government's most pressing challenges using advanced technology. We seek candidates who are enthusiastic about contributing to governmental innovation, value teamwork, and possess an ability to anticipate the needs of others. Our supportive work environment fosters professional growth through diverse learning opportunities. Key Responsibilities:- Develop, modify, and maintain complex software applications independently.- Translate program requirements into efficient and effective code.- Test, debug, and refine applications to ensure data processing aligns with specifications.- Revise existing programs to enhance efficiency and minimize operational time.- Create data entry interfaces and standardized reports, as well as generate customized and ad hoc reports as needed.

Mar 13, 2026
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kda-consulting logo
Full-time|On-site|Chantilly, Virginia, United States

Join our dynamic team at kda-consulting as a Senior Full Stack Developer. In this role, you'll leverage your extensive programming skills to design, develop, and implement robust software solutions. Collaborate with cross-functional teams to deliver high-quality digital products that meet our clients' needs.We are looking for an innovative thinker who is passionate about technology and eager to push boundaries. You will be responsible for both front-end and back-end development, ensuring a seamless user experience while maintaining high performance and responsiveness.

Apr 5, 2026
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CGS Federal logo
Full-time|Hybrid|Chantilly, VA

Join CGS Federal as a Senior APEX Developer and play a pivotal role in supporting our legal accounts within a dynamic team environment. This full-time position requires a Top Secret Clearance.As a Senior APEX Developer, your expertise will be instrumental in enhancing our Legal Analysis Workflow System (LAWS), an Oracle APEX database designed to manage OGC cases and projects. You will be responsible for designing, debugging, coding, and maintaining Oracle APEX applications while collaborating in technical meetings to align with program objectives.CGS Federal thrives on innovation and teamwork, bringing together skilled professionals to tackle the government’s most pressing challenges with state-of-the-art technology. We foster an inclusive environment that encourages professional development and collaboration.

Mar 11, 2026
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AnaVation LLC logo
Full-time|On-site|Chantilly, VA

Role overview AnaVation LLC is hiring a Senior Proposal Manager to support the Business Development Team in Chantilly, VA. This role centers on leading proposal development efforts that drive the company’s strategic growth, especially in the federal sector. The Senior Proposal Manager will work closely with senior leadership, capture and business owners, engineers, proposal managers, coordinators, and operations staff to deliver high-quality proposals. What you will do Lead and write proposals from early concept through final submission, ensuring each aligns with AnaVation’s growth objectives. Manage proposal schedules, deadlines, and progress tracking to meet demanding timelines. Develop proposal outlines and compliance matrices that address all solicitation requirements. Write and edit proposal sections for clarity, organization, and logical flow, emphasizing AnaVation’s strengths. Guide the creation and review of proposal strategies, including key and win themes. Facilitate collaboration sessions to refine win strategies, assess competitors, and clarify customer priorities. Review and analyze solicitation requirements to ensure full compliance and responsiveness. Organize and lead all color team reviews, incorporating feedback to improve technical, management, and overall proposal quality. Coordinate with stakeholders across the company to gather, review, and edit proposal content. Requirements Experience managing federal proposal efforts that led to awarded contracts. Ability to handle multiple projects and work effectively under tight deadlines. Collaborative, detail-focused approach to proposal management.

Apr 21, 2026
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usm2 logo
Full-time|On-site|Chantilly

Join usm2 as a Ruby on Rails Developer and kickstart your career in software development! As an entry-level developer, you'll have the opportunity to work with a passionate team, gaining hands-on experience in building robust web applications. You will collaborate closely with senior developers to enhance your skills and contribute to exciting projects that make a difference.

Jun 8, 2015
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Accenture Federal Services logo
Python / AWS Developer

Accenture Federal Services

Full-time|$96.2K/yr - $192.3K/yr|On-site|Chantilly, VA

At Accenture Federal Services, we are dedicated to strengthening the U.S. federal government and enhancing the lives of its citizens. Our team of over 13,000 professionals shares a common mission: leveraging technology and innovation to support clients in defense, national security, public safety, civilian sectors, and military health. Join us at Accenture Federal Services, a technology leader within the global Accenture network. Acknowledged as one of Glassdoor's Top 100 Best Places to Work, we foster a collaborative environment where our employees feel valued and are encouraged to grow, learn, and excel through hands-on experience, certifications, industry training, and more. Become a part of our mission to drive impactful change that propels government initiatives forward! Job DescriptionDesign, develop, and configure applications to fulfill business process and application requirements.Create modular program components utilizing Python and AWS Services.Implement solutions in a Serverless AWS environment leveraging AWS Lambda and AWS CDK.Analyze websites to identify optimal data and file capture methods.

Feb 20, 2026

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