Sr. Web Application Developer

Company: Network Designs Inc.
Location: Chantilly
Posted on: February 20, 2026

Job Description:

Job Description Job Description About NDi: Network Designs, Inc. (NDi) is a leading Federal contractor that specializes in designing, developing, and delivering information technology and network solutions for government customers. Founded in 1985, NDi's firmly defined core values have driven all aspects of the business, which have been paramount to our company's success and the establishment of an enjoyable workplace atmosphere. At NDi, we believe that our people are the cornerstone of our success, and we value collaboration, career growth, and winning ideas. Military Veterans Encouraged to Apply. Job Description: As a Senior Web Application Developer, you will be responsible for designing, testing, and developing well-designed web-based software that supports the forensic and investigative ecosystem. You will create testable and efficient code using best software development practices to meet user needs across multiple enterprise applications in a multi-enclave environment. Requirements: US Citizenship is required. Must possess an active TS clearance at the time of application, be willing and able to obtain SCI access, and pass a CI polygraph. This position is onsite 5/days a week in Chantilly, VA Qualifications and Experience: Bachelor's degree in Computer Science, Software Engineering, or related field Minimum of 8 years of experience in web application development Experience with SAFe Agile framework and participation in Program Increments (PIs) and Agile Release Train (ART) activities Strong understanding of web application security requirements and Section 508 compliance implementation Demonstrated experience developing complex web applications in government and classified environments Advanced proficiency with Angular, React, or other modern frontend frameworks Strong skills in JavaScript/TypeScript, HTML5/CSS3, and Bootstrap or other CSS frameworks Experience with backend web technologies (.NET C#, Python, Node.js) and RESTful API design Proficiency in database integration (MySQL, PostgreSQL, Microsoft SQL) Experience with search/indexing tools (Elasticsearch) and messaging/state management (RabbitMQ, Redis) Experience with containerization (Docker, Kubernetes) and CI/CD pipelines Familiarity with Cloud platforms (AWS GovCloud, SC2S, C2S) and DevSecOps practices Responsibilities: Design, test, and develop well-designed web-based software using best practices Translate UI/UX design wireframes into functional code Ensure software continues to function normally through maintenance and testing Document every aspect of applications, services, or environments for future reference Configure, administer, and manage all aspects of website/application tools Develop content for multiple websites/tools that serve as major sources for information and decision making Build searches, reports, and dashboards for web applications Recommend software upgrades for current and future systems Ensure web applications meet Section 508 compliance requirements Implement security measures to protect web applications from vulnerabilities Optimize web applications for maximum speed and scalability Participate in Program Increments (PIs) and Agile Release Train (ART) activities Mentor junior developers and provide technical guidance Compensation and Benefits: At NDi, we value our team and are committed to retaining top talent by offering competitive benefits and compensation packages. Our employee benefits package includes comprehensive health, dental, vision, pet, and legal insurance. Our corporate benefits include 401(k) retirement matching, paid leave, paid holidays, and health and wellness programs. In addition, we provide employer-paid life and disability insurance, professional development, education benefits, and much more to ensure our team has the resources they need to thrive on and off the job. Veterans First Commitment: As a Service-Disabled Veteran-Owned Small Business (SDVOSB), NDi is dedicated to hiring veterans and providing a supportive work environment that honors their service while recognizing the unique skills and experiences they bring to our organization. Commitment to Diversity: NDi is an Equal Opportunity Employer. We are committed to creating a diverse environment and are proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran or military status, citizenship, national origin, or any other basis prohibited by law in all phases of the employment process and compliance with applicable federal, state, and local laws and regulations. As a federal government contractor, NDi complies with all applicable affirmative action requirements. Apply Now: Take advantage of this unique opportunity to join one of the fastest-growing companies in Federal contracting!

Keywords: Network Designs Inc., Harrisburg , Sr. Web Application Developer, IT / Software / Systems , Chantilly, Pennsylvania