PHP/JavaScript Engineer

Location: Chantilly, VA (Onsite)
Salary: $165,000–$185,000
Clearance: Active TS/SCI with CI Polygraph or FSP is required to start 

Position Overview

We are seeking an experienced PHP/JavaScript Developer to design, develop, and maintain web-based applications supporting mission-critical government systems.

The ideal candidate will have a strong background in PHP, JavaScript, MySQL, and full stack web development, with experience building and enhancing applications across the user interface, middleware, backend services, and APIs.

This is a hands-on development opportunity for someone who enjoys solving technical challenges, improving existing applications, and delivering scalable, reliable software solutions in a collaborative environment.

Key Responsibilities

• Design, develop, test, deploy, and maintain web-based applications using PHP and JavaScript.

• Develop and enhance full stack solutions across user interfaces, middleware, backend services, and APIs.

• Build, maintain, and optimize database-driven applications using MySQL.

• Develop and integrate web services and APIs to support application functionality and system interoperability.

• Maintain and modernize existing websites and web applications, implementing new features and improving performance.

• Collaborate with stakeholders to gather requirements, identify technical needs, and translate business objectives into functional software solutions.

• Troubleshoot application issues, debug code, and implement improvements to enhance reliability and usability.

• Support workflow automation and process improvements through custom application development.

• Collaborate with technical teams throughout the software development lifecycle.

• Develop and maintain technical documentation to support application functionality, maintenance, and future enhancements.

Required Qualifications

• Active TS/SCI clearance with CI Polygraph.

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field, or 8+ years of relevant professional experience in lieu of a degree.

• 5+ years of professional experience designing, developing, and maintaining websites or web applications.

• 5+ years of hands-on development experience with PHP and JavaScript.

• Strong experience with full stack development, including user interfaces, middleware, backend services, and APIs.

• Experience developing and maintaining database-driven applications using MySQL.

• Strong troubleshooting, debugging, and problem-solving skills.

• Ability to work collaboratively with technical teams and stakeholders in an onsite environment.

Preferred Qualifications

• Experience developing and maintaining Joomla CMS plug-ins, extensions, and custom functionality.

• Experience with Amazon Web Services (AWS) and cloud-based application environments.

• Familiarity with Jira, Confluence, or similar project management and collaboration tools.

• Experience with HTML, CSS, and modern web development standards.

• Knowledge of responsive web design and accessibility best practices.

• Experience gathering technical requirements and translating stakeholder needs into software solutions.

• Experience developing automated workflows and improving existing business processes.

• Experience supporting government or mission-critical software applications.