Vishal Tambe

Senior PowerBuilder Developer with 10.5+ years of experience in the development, migration, enhancement, and production support of enterprise applications. Strong expertise in PowerBuilder (Classic & Appeon), DataWindow, PFC, Oracle, Sybase ASE/ASA, and SQL Server. Proven track record in PowerBuilder-to-Appeon web migrations, Sybase-to-Oracle database migrations, performance tuning, and Agile delivery across Banking, Manufacturing, Warehouse Management, and Healthcare domains.

Experienced in managing Change Management Processes.

PowerBuilder Developer - Pyramid IT Consulting Inc

(2025-09 - 2025-12)

Client: Globant – Ticketmaster

• Developed and supported an offline ticket booking system for Ticketmaster.
• Migrated the database architecture from Sybase ASE 17 to Oracle.
• Identified, modified, and optimized DataWindow SQL queries and window logic script parameters.
• Refactored embedded SQL used across windows and user objects to ensure Oracle compatibility.
• Prepared comprehensive technical documentation covering complex SQL migration and schema conversions.
• Environment: PowerBuilder 2022, Appeon, Sybase 17, Oracle.

Technical Lead - PowerBuilder - Marlabs Innovation Pvt Ltd

(2023-04 - 2024-08)

Client: Security Finance

• Led engineering updates for the Branch & Branch Plus core loan processing applications.
• Developed and enhanced enterprise modules including New Loan, Re-Loan, Joint Loan, Payments, Settlement, and Reporting features.
• Resolved high-priority production defects and optimized legacy business logic.
• Managed disaster recovery procedures leveraging Sybase database mirroring infrastructure.
• Developed custom batch file to automate Sybase DB installations alongside database mirroring configurations.
• Integrated core Branch applications with Salesforce utilizing database triggers and stored procedures.
• Identified and resolved bugs within Salesforce data streams while implementing custom extraction enhancements.
• Environment: PowerBuilder 2019, Sybase 16/17, Salesforce integration.

Senior Consultant - PowerBuilder - Fabilytics Software Services

(2022-09 - 2022-12)

Client: Opteamix

• Enhanced the operational functionality of the Membership Stock System (MSS) application.
• Designed and develop a dynamic stake percentage configuration module.
• Updated complex DataWindows, financial reports, stored procedures, and database functions.
• Contributed actively to daily development stand-ups under Agile Scrum methodologies.
• Environment: PowerBuilder 2019, Oracle 11g.

Technical Lead - PowerBuilder - HCL Technologies

(2019-07 - 2022-08)

Client: Citi Bank

• Migrated large-scale, legacy PowerBuilder desktop applications to web-based architectures using Appeon PowerServer.
• Programmed transaction-heavy workflows for payment disbursements, demand draft (DD) printing, check printing, and audit reports.
• Resolved complex migration compatibility bugs and ongoing production application issues.
• Adjusted and optimized database triggers, stored procedures, and functions post-migration.
• Fixed functional bugs across PowerBuilder scripts and stored procedures following a Unix-to-Linux database server migration.
• Programmed scripts to consume external Excel, Text, and XML files natively inside DataWindow structures.
• Handled Change Requests (CR) managing the formal deployment of critical bug fixes and system extensions.
• Environment: PowerBuilder 2017, Appeon PowerServer 2017, Sybase 16, Unix/Linux.

Senior Software Engineer - Tech Mahindra

(2017-09 - 2019-07)

Client: XPO Logistics

• Managed engineering updates for the corporate Warehouse Management System (SIMS).
• Developed, optimized, and supported inbound logistics, outbound shipments, and warehouse order processing modules.
• Investigated and resolved localized PowerBuilder scripts and associated Java webservice errors.
• Developed file parsers to read and write Excel, XML, and text files directly into DataWindows.
• Provided tier-2 (L2) and tier-3 (L3) application production support.
• Environment: PowerBuilder 12.1, MS SQL Server, Oracle, Java Web Services.

Software Engineer - PowerBuilder - Hexaware Technologies

(2017-06 - 2017-09)

Client: BNP Paribas

• Supported FLASH, a specialized mutual fund management windows application utilized by BNP Paribas internal users.
• Contributed to the strategic application migration blueprint shifting workflows from PowerBuilder to ReactJS.
• Penned technical conversion specifications mapping windows events, object properties, and functions for the migration team.
• Environment: PowerBuilder 12.1, Sybase 16, ReactJS.

Software Engineer - PowerBuilder - Harman Connected Services

(2016-11 - 2017-05)

Client: Carestream

• Built core features for an enterprise healthcare Windows desktop application.
• Maintained components across patient administration, financial billing, appointments, treatments, and surgery schedules.
• Resolved systemic user interface defects and rolled out screen-refresh layout modernizations.
• Analyzed and boosted performance for long-running database stored procedures.
• Environment: PowerBuilder 12.1, Sybase 16.

Software Engineer - PowerBuilder - Yash Technologies

(2013-12 - 2016-11)

Client: John Deere

• Maintained EQUIP™, a large client/server dealership platform optimizing sales, rental accounting, inventory, and dealer operations across North America.
• Maintained system logic for Service, Sales, Rentals, Stock, and Order maintenance sub-systems.
• Debugged and rolled out hotfixes addressing critical defects caught within production operating environments.
• Added custom report layouts and expanded existing analytical reporting screen with new database columns in DataWindow.
• Architected a specialized diagnostic logging module tracking window execution lifetimes and DataWindow retrieval processing times.
• Environment: PowerBuilder 12.5, Sybase 12/16.

Master of Science - Computer Science - Savitribai Phule Pune University (2011)

Bachelor of Science - Computer Science - Savitribai Phule Pune University (2008)