Senior iSeries RPG/IBM i Consultant and Developer

Troy DiCostanzo

Senior RPG/IBM iSeries Developer Contract & Consulting Specialist

Centerville, MA 02632 508-***-**** ********@*******.*** linkedin.com/in/troy-dicostanzo/

Profile

Dynamic iSeries developer with deep experience in RPG IV, CL, and AS/400 platforms, building and supporting business applications. Skilled at solving technical challenges, developing tools and utilities, and delivering reliable, high-performance solutions. Focused on practical coding, system optimization, and workflow improvement, with track record of completing projects swiftly and maintaining hands-on involvement without managerial oversight. Recognized for versatility, technical problem-solving, and commitment to enterprise results.

Areas of Expertise

•Application Development

•Code Conversion & Optimization

•Utility & Tool Development

•Unit, integration, and system testing

•Systems Integration

•Data Extraction & Reporting

•Financial Systems Interfaces

•Design documentation

•Project Lifecycle Coordination

•Cloud & Legacy Systems Integration

•Performance Monitoring & Automation

Business Applications: Retail Manufacturing Warehousing & Distribution Inventory Management Product Structure Management Order Entry Materials Management Materials Requirements Planning Purchasing Financials Accounts Receivable Accounts Payable General Ledger Fixed Assets Sales Analysis Payroll Benefits Administration

Technical Proficiencies

RPG III RPG IV RPGLE RPG Free COBOL CLLE DB2/400 SQL400 FTP IFS ALDON Implementer IBMi SQL AS/400 Application Development IBM iSeries SDLC ERP Systems Change Management CLProgramming

Professional Experience

President/Software Consultant Legacy Services, Inc. Centerville, MA 1994 — Present

Define technology strategies and guide enterprise software implementations to align with business objectives and client requirements. Manage cross-functional teams and coordinate project lifecycles for quality assurance and smooth integration of complex solutions across multiple platforms.

•Increased operational efficiency and reduced manual workload by developing iSeries applications using RPG IV and CLLE, delivering on-site and remote solutions aligned with evolving client needs.

•Improved document distribution and vendor communication by automating fax transmission of purchase orders, work orders, and acknowledgements via IBM FAX-400 integration with Infinium and JBA systems.

•Streamlined supply chain management and inventory visibility by building real-time update and inquiry modules, flexible reporting, and automated line-item warehouse resourcing routines across high-volume distribution environments.

•Enhanced payroll processing, workforce incentives, and compliance by converting Lawson payroll to Infinium, automating bonus generation for 35,000 employees, and generating quarterly tax calculations for commission-based sales teams.

•Strengthened financial and retail integration by building interfaces between ADP, JDA general ledger, and LabelMaster retail store shelf label systems for consistent, automated transaction flow and reporting.

•Modernized legacy applications and improved system performance through Marcam source code conversion to Infinium standards, payroll archive optimization, and workflow improvements across enterprise platforms.

•Elevated operational reliability and innovation by building utilities for internet enablement, workstation management, library backup and restore, and system monitoring with email alerts for critical issues.

•Worked collaboratively with cross-functional teams and supported end users

Senior Software Engineer Technology Consulting, Inc. Louisville, KY 2014 — 2025

Develop iSeries applications using RPG IV and CLLE, and support integrations across payroll, accounts payable, benefits, and financial systems within Infinium-based enterprise environments.

•Improved recruiting and onboarding efficiency through development of interfaces between Infinium Payroll and Personnel and iCIMS, and enabled automated data exchange for hiring workflows and employee record creation.

•Increased benefits administration accuracy by building integrations between Infinium Payroll and Personnel and BenefitsConnect, and ensured consistent data synchronization for employee enrollment, eligibility, and plan management.

•Strengthened accounts payable processing and financial reconciliation through integration of Infinium Accounts Payable with Coupa and Blackline, and enabled automated transaction flow, validation, and reporting across financial systems.

•Accelerated financial system modernization through development of Infinium data extracts for Oracle conversion, and supported accounts payable migration by ensuring accurate data mapping, validation, and transfer processes.

•Enhanced payroll and benefits processing reliability through creation of interfaces between Infinium Payroll systems and external providers, including Allstate, Prudential, Mercer, and Wells Fargo, for insurance and 401(k) administration.

Senior Technical Specialist Infor Hyannis, MA 2007 — 2012

Produced iSeries applications through RPG IV and CLLE for enterprise use. Converted legacy source by enabling double byte character set compatibility. Supported financial software suite via issue resolution and optimization. Elevated system reliability with structured debugging and refactoring. Provided technical guidance using documentation and user support.

•Improved web-based RPG integration by creating workstation manager module and conversion tool patented.

•Supported software distribution by developing utility to support save/restore libraries using multi-volume CDs.

•Strengthened operations monitoring by building tools to track disk space and resource security.

•Streamlined software deployment by creating downloadable installation packages for QSYS and IFS material.

Additional Experience

Application Developer Analyst United Systems & Software Lake Mary, FL

Development Manager, iSeries Infrastructure/Senior Technical Specialist Infinium Software Hyannis, MA

Senior Software Engineer Software 2000 Hyannis, MA

Programmer/Analyst/Consultant Jastech, Genesis Software, Fairchild Semiconductor, Marcam, TryMax OH, MA, ME

Education

Associate’s Degree in Applied Science with Major in Data Processing & Computer Programming, Magna Cum Laude

Blue Hills Technical Institute Canton, MA

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