Web Application Developer, Senior
AMERICAN SYSTEMSRole Overview
AMERICAN SYSTEMS is hiring a Web Application Developer, Senior. This is a full-time role in Washington. Part of AMERICAN SYSTEMS's Security hiring, posted last week. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
AMERICAN SYSTEMS, a 100% employee-owned federal government contractor, is seeking a Senior Web Applications Developer to support mission-critical initiatives at Joint Base Anacostia-Bolling (JBAB), Washington, DC. In this role, you will lead the modernization, enhancement, and maintenance of secure web applications that support data-driven decision-making and operational effectiveness.
The ideal candidate brings deep experience in React.js, Node.js, JavaScript, HTML, CSS, SQL, and RESTful API integration, along with the ability to refactor legacy systems, improve application scalability and performance, and collaborate with stakeholders in Agile development environments.
THIS POSITION INCLUDES A $5,000 SIGN-ON BONUS!
Responsibilities
As a Senior Web Application Developer with AMERICAN SYSTEMS, you will have the opportunity to do the following:
- Modernize and maintain web apps for scalability and performance
- Write modular code in React.js, Node.js, JavaScript, HTML, and CSS
- Refactor legacy code to reduce debt and improve readability
- Build dashboards, workflows, and visualizations for data-driven apps
- Optimize SQL queries and ensure database performance and security
- Define and deliver scalable solutions with stakeholders
- Work in Agile (Scrum, XP, Kanban) environments
- Conduct code reviews and mentor junior developers
- Provide actionable reports and analytics for informed decisions
- Maintain, modernize, and refactor web applications for improved scalability, performance, and maintainability.
Qualifications
- Active TS clearance w/SCI eligibility REQUIRED
- Bachelor’s degree in computer science or related field (or equivalent years of relevant experience).
- 8-10 years of relevant experience
- Active Security+ CE certificate or ability to obtain Security+ CE certification within 90 days of hire
- Proficiency in React.js, Node.js, JavaScript/HTML/CSS, and SQL
- Experience developing and integrating RESTful APIs.
- Experience with Git or other version control systems.
- Ability to analyze, refactor, and improve legacy applications.
- Familiarity with Linux (RHEL) administration and update management.
- Experience working in Agile environments, including Scrum or XP methodologies.
NOTE: U.S. Citizenship Required for the purposes of obtaining/holding a U.S. security clearance
THIS POSITION INCLUDES A $5,000 SIGN-ON BONUS!
Pay Transparency Statement
AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $140,000.00/Yr. - USD $170,000/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.
EEO Statement
EEO Race/Sex/Disability Status/Veteran Status
Frequently Asked Questions
How do I apply for the Web Application Developer, Senior position at AMERICAN SYSTEMS?
Use the Apply button above to submit your application directly to AMERICAN SYSTEMS. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Web Application Developer, Senior position at AMERICAN SYSTEMS located?
This position is based in Washington. AMERICAN SYSTEMS has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Web Application Developer, Senior at AMERICAN SYSTEMS earn?
AMERICAN SYSTEMS has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Web Application Developer, Senior role at AMERICAN SYSTEMS posted?
This role was posted on June 8, 2026 (7 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Web Application Developer, Senior role at AMERICAN SYSTEMS require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. AMERICAN SYSTEMS lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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