HPE Non-Stop (Tandem) Mainframe Developer

HPE Non-Stop (Tandem) Mainframe Developer

The Senior Client Non-Stop Developer plays a pivotal role in the design, development, and ongoing enhancement of mission-critical applications running on HPE Non-Stop systems. This position supports the 24/7 operational demands of Client's train dispatching infrastructure, ensuring that software solutions meet the high-availability and fault-tolerance requirements.

By developing and maintaining robust, scalable code for real-time train control systems, the Senior Developer directly contributes to the safe, efficient, and timely movement of trains across the national network.

This role is essential to sustaining the reliability and performance of the core dispatching applications that underpin Client's operational continuity. The Senior Client Non-Stop Developer works on major projects providing subject matter expertise and technical direction and is also responsible for systems analysis, design, development, integration, and enhancement. Also involved in complex support issues. Works closely with customers, business analysts and team members to understand the business requirements that drive the analysis and design of quality technical solutions.

These solutions must be aligned with business and IT strategies and are in compliance with the organization's architectural standards.

Responsibilities include, but may not be limited to, the following:

• Design, develop, and maintain fault-tolerant applications on HPE Non Stop systems using TAL, C, or C++
• Build and support mission-critical software for real-time train control, dispatching, and crew scheduling.
• Develop and optimize database solutions using Non Stop SQL/MX and SQL/MP.
• Integrate applications with Enscribe file systems and Pathway server
• Communicate effectively with technical and non-technical stakeholders across departments
• Support modernization efforts through hybrid integration models (e.g., REST APIs, NSHTTP, iTP Web Server)

Deliverables:

• 24x7 system availability
• Source code and compiled executables for HPE Non Stop applications
• TACL automation scripts for operational tasks
• Technical design and architecture documentation
• Deployment guides and configuration manuals
• Release notes, version histories, and rollback procedures
• Unit, integration, and performance test cases
• Issue resolution reports and root cause analyses
• Performance monitoring, reporting, analysis and tuning
• Support for escalated incidents (Severity 1, 2 ) and root cause analysis

Requirements:

• Bachelor's degree in computer science, Software Engineering, or related field (required)
• Minimum 7 years of hands-on development experience on HPE Non Stop (Tandem) platforms
• Expertise in application development on HPE Non Stop systems using TAL, C, or C++ to build and maintain high-performance, fault-tolerant solutions in 24/7 environments
• Experience in developing mission-critical applications for regulated or service-oriented industries with real-time requirements
• Expertise in Non Stop SQL/MX and SQL/MP databases, including schema design, query optimization, and ANSI-compliant SQL development
• Familiarity with Enscribe file structures and integration with Pathway server-based applications
• Proficiency in system performance analysis, with the ability to identify bottlenecks and improve transaction throughput and responsiveness
• Expertise in incident response and troubleshooting, ensuring rapid resolution of production issues to maintain uptime and continuity
• Familiarity with structured change management practices, including software release planning, patch deployment, and rollback strategies
• Proficiency in creating and maintaining technical documentation, ensuring alignment with internal development standards and regulatory compliance
• Expertise in secure development practices, with awareness of audit, data protection, and industry-specific security requirements
• Familiarity with release management workflows, including accurate task estimation, dependency tracking, and resource allocation
• Proficiency in cross-functional collaboration, working closely with QA, operations, and development teams to deliver secure, scalable solutions
• Demonstrated ability to communicate effectively, both verbally and in writing, across technical and non-technical stakeholders

Preferred HPE Nonstop technical certification:

• 10 years of hands-on development experience on HPE Non Stop (Tandem) platforms
• Experience in mission-critical transportation, logistics, or dispatching systems
• Exposure to hybrid integration models (e.g., Non-Stop to REST API architectures, iTPWebServer, NSHTTP)
• Prior experience working in environments governed by strict SLAs and regulatory standards

Equal Opportunity & Inclusion Statement:

Cogent Infotech is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment where everyone feels welcome and valued. We encourage applications from individuals of all backgrounds, identities, abilities, and experiences. If you're excited about this role but don't meet…