Senior Non-Stop Developer (Tandem)

We are seeking a highly skilled Senior HPE NonStop Administrator to support mission-critical train dispatching systems. This role is responsible for ensuring the stability, performance, and 24/7 availability of HPE NonStop (Tandem). environments that power real-time transportation operations. The ideal candidate will have deep expertise in fault-tolerant systems, system administration, performance tuning, and disaster recovery, with a strong focus on maintaining high availability in SLA-driven environments., * Administer and maintain HPE NonStop (Tandem) systems across production and development environments.

• Ensure 24/7 system uptime for mission-critical applications.
• Perform system startups, shutdowns, cold loads, and recovery procedures.
• Monitor system performance, availability, and health; proactively troubleshoot issues.
• Implement and enforce security policies, access controls, and audit compliance.
• Detect and respond to security incidents and unauthorized access attempts.
• Conduct performance tuning using tools like MEASURE.
• Perform capacity planning and system optimization.
• Manage and test backup and disaster recovery strategies.
• Apply OS patches, firmware updates, and system upgrades.
• Support high-availability configurations and fault-tolerant architectures.
• Coordinate change management and release cycles with cross-functional teams.
• Provide support for Severity 1 & 2 incidents and perform root cause analysis.
• Participate in on-call rotations and off-hours maintenance.
• Maintain technical documentation, runbooks, and system configurations., Key Deliverables
• Maintain 24x7 system availability and operational stability.
• Monitor, troubleshoot, and resolve system issues proactively.
• Perform regular patching and security updates.
• Deliver performance analysis and tuning reports.
• Support production deployments and system upgrades.
• Maintain comprehensive technical documentation.
• Provide incident support and root cause analysis.

• Bachelor’s degree in Computer Science, Engineering, or related field.
• Min 7+ years of hands-on experience with HPE NonStop (Tandem) systems.
• Strong expertise in Guardian and OSS environments.
• Proficiency with utilities such as FUP, SCF, and TACL.
• Hands-on experience with TACL scripting for automation.
• Experience with system patching, upgrades, and security hardening.
• Strong knowledge of Enscribe file systems and access control mechanisms.
• Experience with Pathway server configuration and administration.
• Familiarity with NetBatch or similar job scheduling tools.
• Experience with Event Management System (EMS) monitoring and diagnostics.
• Knowledge of network administration, including CLIM configuration and IP management., * HPE NonStop Certification.
• 10+ years of NonStop administration experience.
• Experience in transportation, logistics, or dispatching systems.
• Knowledge of NonStop SQL/MP and SQL/MX.
• Exposure to hybrid integrations (REST APIs, iTPWebServer, NSHTTP).
• Experience working in SLA-driven and regulated environments.

Lumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, Enterprise Transformation.