Sr. GUI Software Engineer with Security Clearance

Zachary Piper Solutions is seeking an experienced Sr. GUI Software Engineer to support a leading federal technology and defense contractor specializing in mission-critical software engineering, systems modernization, and advanced technology solutions for the U.S. Department of War. This role is FULLY ONSITE (No remote flexibility) in Aberdeen Proving Ground, MD and requires an active Secret security clearance* The Senior GUI Software Engineer will support the sustainment and modernization of a legacy strategic satellite communications (SATCOM) command-and-control system for the U.S.

Army at Aberdeen Proving Ground, MD. This role will focus on maintaining, troubleshooting, and enhancing graphical operator interfaces and applications built on DEC VAX/OpenVMS platforms using SL-GMS, DECwindows Motif, and Fortran 77, while supporting software integration, testing, and legacy system modernization. Responsibilities of the Sr.

GUI Software Engineer

• Maintain, modify, troubleshoot, and enhance RSCCE graphical operator displays and front-end applications developed using SL-GMS, DECwindows Motif, and Fortran 77 on DEC VAX/OpenVMS platforms.
• Collaborate directly with system users and operators to gather, analyze, and translate operational requirements into software enhancements, graphical display modifications, and application design changes.
• Analyze, test, troubleshoot, patch, update, and install software within the RSCCE baseline, resolving application errors, identifying root causes, and implementing corrective actions.
• Develop and implement software enhancements through Requests for Change (RFCs), Information Assurance Vulnerability Alerts (IAVAs), and other change management processes in accordance with the CECOM SEC Change Advisory Board (CAB).
• Design and develop software interfaces, automated testing tools, and integration solutions; participate in test planning, execution, and validation of graphical display and application changes.
• Support the integration, testing, and maintenance of application services and databases, ensuring software reliability, maintainability, and compatibility across system components.
• Collaborate with Cyber Engineering and Database Engineering teams to support system sustainment, technical issue resolution, and modernization or migration planning for legacy RSCCE components.
• Develop and maintain technical documentation and software deliverables, including software design documentation, Technical Reports, Test Plans and Reports, Software Version Descriptions, Engineering Change Proposals (ECPs), and Deployment Plans. Qualifications for the Sr.

GUI Software Engineer

• 12+ years of software design, development, and testing experience within the last 15 years, covering GUI, services, and database tiers.
• Bachelor's degree in Computer Science, Engineering, or a related field, or 4+ additional years of equivalent experience.
• Experience with SL-GMS and X Window System/DECwindows Motif graphical environments.
• Experience developing and maintaining applications using Fortran 77 and DEC VAX/OpenVMS.
• Experience analyzing software requirements and supporting technical tradeoff evaluations.
• Experience developing software interfaces, automated testing tools, and integration solutions.
• Experience designing, integrating, testing, and documenting scalable, maintainable databases and software applications.
• Active Secret clearance (up to TS/SCI)*
• Ability & Willingness to work fully onsite in Aberdeen Proving Ground, MD*
• Preferred:
• Experience migrating legacy VAX/OpenVMS or Fortran applications to modern platforms or emulation environments.
• Experience supporting SATCOM, satellite control, or real-time command-and-control systems.
• Previous experience supporting Army CECOM or Aberdeen Proving Ground programs. Compensation for the Sr.

GUI Software Engineer

• Salary Range: $130,000 - $170,000 *depending on experience*
• Comprehensive Benefits: Medical, Dental, Vision, 401k Plan, PTO, Holidays, Sick Leave if required by law

This job opens for applications on 11/04. Applications for this job will be accepted for at least 30 days from the posting date. #LI-MS1 #LI-ONSITE Keywords: GUI Software Engineer, Senior Software Engineer, Legacy Software Engineer, Systems Software Engineer, Front End Software Engineer, OpenVMS Engineer, OpenVMS Developer, VAX/VMS Engineer, Fortran Developer, GUI Developer, Software Development, GUI Development, Graphical User Interface, Legacy Software Development, Legacy Application Maintenance, SL-GMS, Sherrill-Lubinski Graphical Modeling System, X Window System, X Windows, X11, Motif, OSF/Motif, DECwindows, DECwindows Motif, Digital Equipment Corporation, DEC VAX, VAX, VAX/VMS, VMS, OpenVMS, DEC Alpha, Fortran, Fortran 77, F77, Legacy Systems, Legacy Software Sustainment, Software Maintenance, Software Modernization, Legacy System Migration, Application Migration, Platform Modernization, Software Troubleshooting, Debugging, Software Testing, Automated Testing, Test Automation, Software Integration, Application Integration, Database Integration, Database Development, Database Design, Software Architecture, Software Design, Requirements Analysis, Systems Engineering, Technical Tradeoff Analysis, Operator Interfaces, Graphical Displays, Human Machine Interface, HMI, Real-Time Systems, Real-Time Applications, Command and Control, C2, C4ISR, SATCOM, Satellite Communications, Satellite Control Systems, Strategic Communications, Military Communications, RSCCE, Army CECOM, CECOM SEC, Aberdeen Proving Ground, APG, Software Configuration Management, Change Management, Change Advisory Board, CAB, Requests for Change, RFC, IAVA, Engineering Change Proposals, ECP, Technical Documentation, Test Plans, Test Reports, Software Version Descriptions, Deployment Plans, ASRC Federal, Agile Decision Sciences, DoD, DoW, U.S. Army, Secret Clearance, Top Secret, TS/SCI