App Developer

Zachary Piper Solutions • Recruiting & Staffing • IT Staffing & Staff Augmentation • TS/SCI • JavaScript • Java • TypeScript • SQL • Bash • 2 days ago

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Salary

$150k – $195k per year

Location

In office (King of Prussia)

Employment

Full-Time

First seen by Alion on Oct 15, 2026.

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Zachary Piper Solutions

Zachary Piper Solutions is a technology staffing and recruiting firm that places cleared professionals with companies supporting the Department of Defense and federal agencies. It recruits network engineers, data engineers, software engineers and cyber operations planners for roles that often require a Top Secret clearance. The company is headquartered in McLean, Virginia, United States.

zacharypiper.com • HQ: McLean, United States • IT Staffing & Staff Augmentation • Recruiting & Staffing

Tech stack of Zachary Piper Solutions

Security clearance: Top Secret/SCI

Zachary Piper Solutions is seeking an App Developer (multiple positions open for a range of experience levels) to support a national leading aerospace and global security program! The role is fully on site in King of Prussia, PA. This position offers extensive opportunity for long term growth and career development, as well as the opportunity to be part of a team of highly accomplished Software Developers.

Responsibilities of the App Developer:

Apply the appropriate standards, processes, procedures, and tools throughout the development life cycle.
Apply knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software.
Correct program errors, compiling documentation of program development, and analyzing system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls.
Ensure software standards are defined and met.

Required Qualifications of the App Developer:

*Active TS (Top Secret) OR TS/SCI Clearance REQUIRED*

3 + years of relevant experience in software engineering
2+ years of experience in either front-end or full stack development
2 + years of experience with Java, React, Angular, and SpringBoot highly PREFERRED
Experience with DevSecOps, Angular, or Kubernetes is a plus!
Experience with geospatial data/engineering is a plus!
Ability to work with XML
Proven experience in COTS/FOSS integration and support
Ability to troubleshoot and navigate multiple operating system environments including LINUX/Windows
Bachelors' degree

Compensation for the App Developer:

Salary Range: $150,000-$195,000 depending on experience
Full Benefits Package: PTO, Paid Holidays, Medical, Dental, Vision, 401K, Tuition Reimbursement

This job was posted on October 14, 2026 and will be open for 30 days after posting date.

#LI-AK #LI-ONSITE

Keywords: Front End Developer, Frontend Developer, UI Developer, Web Developer, Web Application Developer, Software Developer, Software Engineer, Application Developer, Application Engineer, Application Software Developer, App Developer, AppDev, Full Stack Developer, Full-Stack Engineer, Software Programmer, Application Programmer, Programmer Analyst, Software Development, Application Development, Angular, AngularJS, Java, Java EE, J2EE, Jakarta EE, Java Developer, Java Engineer, Java Software Engineer, Spring, Spring Boot, Spring MVC, Spring Framework, DevSecOps, DevOps, CI/CD, Jenkins, Git, GitLab, GitHub, Docker, Kubernetes, OpenShift, Front-End, Frontend, Program Development, COTS, Commercial Off-the-Shelf, FOSS, Open Source, Software Integration, Systems Integration, Application Integration, XML, XSLT, XPath, XSD, JSON, REST, RESTful, REST API, API, Microservices, Maven, Gradle, Hibernate, JPA, JDBC, JavaScript, TypeScript, HTML, HTML5, CSS, CSS3, UI, GUI, Web UI, Single Page Application, SPA, Linux, RHEL, Red Hat, Red Hat Enterprise Linux, Unix, Windows, Windows Server, Bash, Shell, SQL, PostgreSQL, Oracle, MySQL, Top Secret, TS, TS/SCI, SCI, Active TS, Active Top Secret, Security Clearance, Cleared, Cleared Software Engineer, Cleared Java Developer, Intelligence Community, IC, DoD, Federal, NGA, National Geospatial, Top Secret, Cleared, Geospatial, Airforced, TS, Geospatial

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