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# PHP/JavaScript Engineer

- **Company:** JOSEF GROUP INC
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Salary:** $165,000.0 - $185,000.0
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), PHP (Programming Language), Web Accessibility, Application Programming Interfaces (APIs), Amazon Web Services, Software Applications, Confluence, JIRA, Cascading Style Sheets (CSS), Cloud Computing, Collaborative Software, Databases, Custom Software, Software Debugging, Middleware, Design of User Interfaces, Human-Computer Interaction, Interoperability, Joomla, MySQL, Responsive Web Design, Software Engineering, Software Systems, Web Applications, Web Services, Flexi (Photoshop Plugin), Software Troubleshooting, Backend, Information Technology
- **Published:** October 18, 2026
- **Apply:** https://www.careerjet.com/job/us1bc77ceceecb026297df7a6005229801/eaa

## About the Role

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.

## Description

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., 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.