Senior HP NonStop (Tandem) Developer – BESS Wire Payments

Job Description: Senior HP NonStop (Tandem) Developer – BESS Wire Payments

Company: Cogency

Role: Senior HP NonStop (Tandem) Developer

Domain: Banking – Wire Payments

Engagement: Legacy Application Modernization and Production Support

Position Overview

Cogency is seeking an experienced HP NonStop (Tandem) Developer to support the Bank's legacy BESS (Banking Electronic Support System) wire payments application while its successor, the new Wire Payment Engine, is developed in-house.

The role focuses on building integrations with the new payment engine, safely decommissioning legacy BESS functionality as capabilities are migrated, and maintaining the reliability and operational stability of the remaining application throughout its transition lifecycle.

The modernization initiative has an aggressive target of completion by mid-2029. However, the role's long-term duration is not guaranteed and will depend on the application's ongoing support and migration requirements.

Key Responsibilities

• Develop and maintain integrations between the legacy BESS application and the new Wire Payment Engine.
• Decommission legacy BESS code and functionality as capabilities migrate, ensuring existing workflows remain safe and reliable.
• Provide application maintenance, troubleshooting, defect resolution, and production support for BESS.
• Analyze existing BESS architecture, proprietary database structures, file systems, message flows, and queue manager configurations.
• Develop, enhance, and maintain applications in the HP NonStop/Tandem environment using COBOL, SCOBOL, TAL, and TACL.
• Work with Guardian, Pathway, FUP, SCUP, Enscribe, and Safeguard security.
• Support IBM MQ integrations and messaging workflows between legacy and modernized payment systems.
• Support SWIFT wire payment processing and related banking interfaces.
• Investigate production incidents, identify root causes, and implement fixes while minimizing operational risk.
• Collaborate with business stakeholders, architects, developers, and operations teams to support the phased migration of payment capabilities.
• Follow established change management, security, testing, implementation, and production support procedures.

Required Skills & Experience

• Strong hands-on experience with HP NonStop (Tandem) systems.
• Proficiency in:
• Guardian, Pathway, FUP, and SCUP
• COBOL, SCOBOL, TAL, and TACL
• Enscribe database and file system
• Safeguard security
• IBM MQ and message queue management
• Strong product knowledge of BESS (Banking Electronic Support System), including:
• Proprietary database and file system
• Message flows and queue manager
• Application workflows and integrations
• Experience with SWIFT wire payments processing in a banking environment.
• Experience in legacy application maintenance, production support, troubleshooting, and system integration.
• Ability to safely modify and decommission legacy functionality without disrupting critical payment processing.

Nice-to-Have Skills

• Experience with Tandem products and utilities, including:
• BCOM
• LightWave
• XML Thunder
• XYGATE XUA
• WebViewPoint
• MOOG
• PagerDuty
• Knowledge of SWIFT ISO 20022 payment formats (MX) and SWIFT gpi.
• Experience with IBM mainframe JCL and related scheduling tools, such as Zeke.
• Experience supporting legacy payment platforms during phased modernization or migration initiatives.