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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principe Mainframe - Architect / Lead consultant - 18+ years Experience - **Company:** Arthur Grand Technologies - **Location:** Jersey City, NJ, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Data Integrity, IBM DB2, Endevor, Job Control Language (JCL), IBM WebSphere MQ, Tivoli Management Framework, Mainframes, Risk Management Information Systems, Software Engineering, Z/OS, Transaction Processing (Computing), Information Technology, Deployment Automation, Build Tools, Sql Tuning, Control M - **Published:** June 23, 2026 - **Apply:** https://jobs.smartrecruiters.com/ArthurGrandTechnologiesInc/744000133620084-principe-mainframe-architect-lead-consultant-18-years-experience ## About the Role 2. Should be operating at: Lead / Architect / Principal level, + Production issues + Batch failures + Data discrepancies + Financial accuracy, * 18+ years of hands-on mainframe application development * Advanced expertise in: + Enterprise COBOL (high-precision financial calculations, packed decimal handling) + DB2 for z/OS (complex SQL tuning, performance engineering) + CICS TS and/or IMS TM transaction processing + JCL, PROCs, and enterprise batch processing frameworks * Strong experience across: + Trading and post-trade processing systems + Investment accounting and fund administration platforms + NAV calculation and valuation engines * Demonstrated ownership of production-critical financial applications * Expertise in: + Accounting close cycles and NAV processing + Reconciliation workflows and break resolution + Corporate actions lifecycle management + Multi-currency valuation and FX rate application * Experience with scheduling and deployment tools: + Control-M, CA-7, or Tivoli Workload Scheduler + Endevor, Changeman (or similar SCM tools) * Hands-on exposure to: + Audit replay and historical data restatement frameworks + Large-scale asset manager or custodian environments ## Description This role involves designing and managing core financial processing logic across: * End-to-end trade lifecycle (capture through settlement) * Fund accounting and investment book of record * Daily/monthly NAV computation and financial close * Audit replay, historical restatement, and regulatory correction workflows The ideal candidate brings deep domain expertise in capital markets, strong batch engineering capabilities, and a track record of delivering highly accurate, high-volume financial systems under strict regulatory oversight., * Lead the architecture and development of Enterprise COBOL applications supporting: + Trade capture, settlement, and lifecycle processing + Position, holdings, and cash accounting systems + Daily, monthly, and ad-hoc NAV calculations * Take full ownership of financial accuracy and data integrity across systems * Design and implement restartable, checkpoint-driven batch frameworks for financial close processes, including: + Multi-currency valuation and FX conversions + Income accruals, amortization, and distribution calculations + Corporate actions such as dividends, splits, and mergers * Build systems capable of reprocessing historical data for audit, reconciliation, and regulatory corrections * Troubleshoot and resolve NAV breaks and accounting discrepancies within strict reporting deadlines * Design and optimize DB2 data models for: + High-volume trade, position, and pricing datasets + Historical valuation and reporting data * Perform advanced performance engineering: + EXPLAIN plan analysis + Access path tuning + Index strategy optimization * Address production challenges including locking issues, batch overruns, and data skew * Develop scalable batch processing solutions with parallel execution capabilities for EOD/EOM cycles * Optimize COBOL programs for performance, focusing on CPU utilization, I/O efficiency, and consistent processing windows * Build and maintain integration layers using IBM MQ for: + Trade and pricing feeds + Market data ingestion + Downstream accounting and reporting systems * Deliver data feeds for risk management systems and regulatory reporting platforms * Support API enablement initiatives via z/OS Connect EE * Act as the technical owner for high-impact financial components and lead root-cause investigations for: + Financial inconsistencies + Reconciliation breaks + Batch and online processing failures * Support SOX, SEC, and internal audits by ensuring complete traceability and replay capability of financial processing logic ## Related Videos - [Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization](https://www.wearedevelopers.com/videos/253-data-fabric-in-action-how-to-enhance-a-stock-trading-app-with-ml-and-data-virtualization) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Can This Elephant Dance? 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