Senior Web App Developer — TS/SCI Eligible, Dashboards

AMERICAN SYSTEMS; Dallas (TX); On-site; USD 155,000 - 175,000; Full time

Job summary

AMERICAN SYSTEMS in Dallas, TX is seeking a Senior Web Applications Developer to modernize, secure, and optimize web applications that drive data-informed decisions. You will lead the stack from React to RESTful APIs, refactor legacy code, and ensure scalable performance in an Agile setting.

The candidate must hold a Top Secret/SCI eligibility clearance, have 8–10 years of relevant experience, and possess DoD 8140 IAT II certification or be able to obtain Security+ CE within 90 days of hire.

Qualifications

• Bachelor's degree in computer science or related field.
• 8-10 years of relevant experience.
• Active DoD 8140 IAT II level certification (e.g., Security+ CE or equivalent) or ability to obtain Security+ CE 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.

Responsibilities

• 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.

Skills

React.js

Node.js

JavaScript

HTML

CSS

SQL

RESTful APIs

Git

Linux (RHEL)

Agile development

Education

Bachelor's degree in computer science or related field

Job description

AMERICAN SYSTEMS in Dallas, TX is seeking a Senior Web Applications Developer to modernize, secure, and optimize web applications that drive data-informed decisions. You will lead the stack from React to RESTful APIs, refactor legacy code, and ensure scalable performance in an Agile setting.

The candidate must hold a Top Secret/SCI eligibility clearance, have 8–10 years of relevant experience, and possess DoD 8140 IAT II certification or be able to obtain Security+ CE within 90 days of hire.