Usman Ayub

SAP S/4HANA ABAP Consultant and Software Engineer with 12+ years of experience in SAP development, SAP BASIS administration, enterprise software development, system integration, and IT management. Experienced in delivering SAP S/4HANA solutions, developing enterprise applications using Microsoft .NET technologies, managing IT infrastructure, and leading digital transformation initiatives. Strong expertise in SAP ABAP, SAP Fiori/UI5, OData, SAP MM, SQL Server, Oracle PL/SQL, C#, and ASP.NET.

SAP S/4HANA ABAP Developer | SAP BASIS Administrator | Software Engineer | IT Manager - RYK Sugar Mills (Pvt.) Ltd. - 50/B, Zaman Park, R Block, Maraghzar Colony, Lahore, Pakistan

(2017-08 - 2026-07)

• Developed SAP S/4HANA custom solutions, reports, interfaces, enhancements, conversions, forms, and workflows.
• Designed ALV Reports, Smart Forms, Adobe Forms, BDCs, BAPIs, BADIs, User Exits, and Enhancement Framework objects.
• Developed SAP Fiori/UI5 applications and OData Services.
• Integrated SAP with external applications using REST APIs, SOAP, RFC, and IDocs.
• Provided SAP MM production support and technical troubleshooting.
• Managed SAP users, transports, authorizations, client administration, and system monitoring.
• Supported SAP upgrades, performance tuning, backups, and system maintenance.
• Developed enterprise desktop and web applications using C#, ASP.NET, SQL Server, and Web APIs.
• Designed databases, stored procedures, triggers, and optimized SQL performance.
• Delivered HR, Payroll, Laboratory, Inventory, Procurement, Vehicle, and Accounting solutions.
• Managed IT infrastructure including servers, networking, backups, cybersecurity, and disaster recovery.
• Administered Windows Server, Active Directory, software licensing, and IT assets.
• Led software development, IT operations, vendor coordination, and technical documentation.

Oracle Application Developer - Sapphire Finishing Mills (Pvt.) Ltd.

(2016-05 - 2017-07)

• Developed Oracle Forms and PL/SQL applications.
• Designed HR, Payroll, Import Management, and Employee Portal solutions.
• Created packages, procedures, triggers, and optimized Oracle databases.

Software Engineer (.NET) - Zeossoft Technologies

(2014-01 - 2016-04)

• Developed desktop and web-based business applications.
• Built POS, Inventory, Workshop Management, and Accounting systems.
• Developed SQL Server databases and REST-based applications.

BS - Computer Science - The University of Lahore (2011 - 2015)

B.Sc. - University of the Punjab

F.Sc. - BISE Lahore

Matriculation - BISE Lahore