React Ext.js Migration Developer

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Join a leading Department of Defense (DoD) health IT modernization initiative as a React.js Developer. This fully remote position involves validating, testing, and refining AI-generated React code converted from legacy Ext.js applications. You will ensure that the new systems maintain full functional and security alignment with the original applications, supporting critical healthcare operations in a compliance-driven environment.

Key Responsibilities
  • Analyze and validate AI-generated React.js code migrated from Ext.js.
  • Debug and resolve functional and performance issues to match original application behavior.
  • Develop and execute comprehensive tests for performance, accessibility, and functionality.
  • Collaborate with internal teams and government stakeholders in an Agile setting.
  • Apply secure coding and accessibility best practices tailored to DoD and healthcare standards.
  • Contribute to documentation and improvements for migration tools and QA processes.
Required Skills & Qualifications
  • U.S. Citizenship with active DoD Secret Clearance or DoD Public Trust (AFMED-compatible).
  • Bachelor's degree in Computer Science/Information Systems or 5+ years of programming experience.
  • Minimum 2 years’ experience with React, TypeScript, Ext JS, .NET Framework (C#), XML, JSON, SQL, HTML, and object-oriented design.
  • Demonstrated expertise with authentication, user-defined functions, structured reporting, dynamic form generation, MVC frameworks, and APIs.
  • Strong debugging, testing, and problem-solving skills in React environments.
  • Proficiency in JavaScript (ES6+), HTML5, and CSS3.
  • Preferred experience with AFMED, MHS GENESIS, or other Military Health Systems.
  • Familiarity with Ext.js legacy architecture and DoD compliance frameworks (HIPAA, FISMA).
  • Experience with Git, Jira, and automated testing tools is a plus.
  • Available for full-time or part-time (20+ hrs/week) remote work within the U.S.; W2 or 1099 only (no Corp-to-Corp).

Job Type: Remote

Salary: Not Disclosed

Experience: Entry

Duration: 12 Months

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