Overview
Skills
Job Details
Job Title: Senior Client Non-Stop Developer
Location: Philadelphia, PA (Occasional travel for offsite software installations)
Work Hours: Between 7:00 AM and 6:00 PM EST (Standard 8 hours Shift)
Due Date for Applications: July 31, 2025
Position Overview:
We are seeking a Senior Client Non-Stop Developer to lead the design, development, and enhancement of mission-critical applications on HPE Non-Stop systems. This role supports real-time train control and dispatching systems, ensuring high availability, fault tolerance, and regulatory compliance.
The ideal candidate will bring deep expertise in Non-Stop development, performance tuning, and secure coding practices, and will collaborate across teams to deliver scalable, reliable solutions for a 24/7 operational environment.
Key Responsibilities:
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Design and develop fault-tolerant applications using TAL, C, or C++ on HPE Non-Stop platforms.
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Build and support real-time train control and dispatching software.
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Develop and optimize database solutions using NonStop SQL/MX and SQL/MP.
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Integrate applications with Enscribe file systems and Pathway server classes.
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Analyze and improve system performance and responsiveness.
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Troubleshoot and resolve production issues to ensure continuous availability.
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Participate in structured change management and release planning.
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Create and maintain technical documentation and deployment guides.
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Implement secure coding practices and support audit-readiness.
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Collaborate with QA, operations, and infrastructure teams.
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Support modernization efforts through hybrid integration models (REST APIs, NSHTTP, iTP WebServer).
Deliverables:
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24x7 system availability and support
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Source code, executables, and automation scripts
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Technical design documents and deployment manuals
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Release notes and rollback procedures
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Test cases and performance reports
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Root cause analyses for escalated incidents
Required Qualifications:
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Bachelor s degree in Computer Science, Software Engineering, or related field
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7+ years of hands-on development experience on HPE NonStop (Tandem) platforms
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Proficiency in TAL, C, or C++ for high-performance, fault-tolerant systems
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Expertise in NonStop SQL/MX and SQL/MP
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Experience with Enscribe file structures and Pathway server integration
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Strong skills in performance tuning and incident resolution
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Familiarity with structured change management and secure development practices
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Excellent communication and cross-functional collaboration skills
Preferred Qualifications:
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HPE NonStop technical certification
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10+ years of NonStop development experience
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Experience in transportation, logistics, or dispatching systems
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Exposure to hybrid integration models (REST APIs, iTPWebServer, NSHTTP)
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Experience working under strict SLAs and regulatory standards
***Lumen and / or its clients will not provide equipment (Laptop, monitor, etc.) to the selected contractor. The contractor must have their own equipment. Access to a virtual desktop set up (software) will be provided by Lumen s client, allowing the user access to the required systems and technology.***
Lumen Solutions Group Inc. is an Equal Opportunity Employer and does not discriminate in employment on the basis of Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans.