AMERICAN SYSTEMS logo

Senior Web Application Developer

AMERICAN SYSTEMS

On-site
Washington, DC
Full-time
Senior
8+ yrs
$155k–$175kPosted 2w ago

Real job — pulled straight from AMERICAN SYSTEMS’s careers page · Verified July 27, 2026 · No reposts.

Job description

AMERICAN SYSTEMS is hiring a Senior Web Application Developer — a full-time, based in Washington, DC role ($155k–$175k). Apply directly on AMERICAN SYSTEMS's careers page below.

Web Application Developer, Senior

Location: Washington, DC, US

Employment Type: FULL_TIME

Overview

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.

#hotjobs

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!

 

AMS1

Pay Transparency Statement

AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $155,000.00/Yr. - USD $175,000/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

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Frequently asked questions

What is the salary for Senior Web Application Developer at AMERICAN SYSTEMS?

The estimated salary range for Senior Web Application Developer at AMERICAN SYSTEMS is $155,000 - $175,000 USD per year.

What skills are required for Senior Web Application Developer at AMERICAN SYSTEMS?

The required skills for Senior Web Application Developer at AMERICAN SYSTEMS include: React, Node.js, JavaScript, HTML, CSS, SQL, REST, Git, Linux, Agile, Scrum.

What is the seniority level for Senior Web Application Developer at AMERICAN SYSTEMS?

Senior Web Application Developer at AMERICAN SYSTEMS is a Senior level position.

How do I apply for Senior Web Application Developer at AMERICAN SYSTEMS?

You can view the full description and apply for Senior Web Application Developer at AMERICAN SYSTEMS on EchoJobs: https://echojobs.io/job/american-systems-web-application-developer-senior-cre9k.