Nag Raj, Developer in Houston, TX, United States
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Nag Raj

Verified Expert  in Engineering

SAP Developer

Houston, TX, United States
Toptal Member Since
December 6, 2022

Nag is a seasoned digital transformation, SAP, cloud, and techno-functional expert with 24+ years of experience across SAP business technologies. Specializing in SAP S/4 HANA and SAP supply chain management (SCM) software, he has a proven track record in delivering successful projects to well-known clients. Nag worked across multiple industries like pharmaceuticals, distribution, consumer goods, automotive, semiconductors, aerospace, high-tech, retail, distribution, oil and gas, and services.



Preferred Environment


The most amazing...

...project I've delivered involved developing AI and ML models to understand and rate 1,500 sheets, making predictions in five minutes with a .99 confidence level.

Work Experience

Senior Solution Architect Advisor (Contract)

2019 - 2021
  • Led the integration testing of SAP S/4 HANA with IBP, Commerce, SAC, and HANA DB and acted as the techno-functional lead of SAP IBP in demand, supply, inventory, product allocation, and replenishment.
  • Worked with McKinsey consulting in the digital transformation of the supply chain by identifying the right tools and technologies for the pharma wholesale distribution business processes.
  • Integrated CPI-DS for data transfer from S/4 HANA and BTP for SAC. Integrated IBP using DS agent ODBC, OData, Teradata, and legacy connectors.
  • Performed end-to-end integration testing on SAP CPI, CPI-DS, BTP, and AWS, with SAP and non-SAP systems and third-party partners, including EDI and non-EDI partners.
Technologies: Commerce, SAP Cloud Platform Integration (CPI), SAP Business Technology Platform (BTP), APIs, Architecture, Pipedrive API, Business Services, Articulate Rise

Digital Supply Chain and Solution Architect

2019 - 2020
Lam Research
  • Played a key role in defining the supply chain IT strategy, roadmaps and value chain analysis, and technology trends.
  • Integrated SAP ECC and the supplier portal of on-premises data stores with SAP HCI and SAP CPI-DS agents.
  • Collaborated with several teams in innovation and automation, providing out-of-the-box solutions to improve productivity, customer delivery, and supplier risk.
  • Acted as an SME in AI and ML development of supplier risk integration with supply chain processes.
  • Managed SQL on-premise Azure and ETL transformations with Azure Avere, Batch, and EDI.
  • Worked with internal and external teams of SAP ERP, SCM, Data, DevOps, Azure, and supplier portals across the company to articulate issues, problems, impacts, and support needs.
  • Built and tested SAP with Azure Power platform, Azure Logic App, and SQL on-premise database.
  • Executed test Azure AI OCR and AP for a supplier risk predictive tool and Power BI dashboard.
  • Managed SQL databases, Functions with C#, integrations, Azure DevOps, CI/CD, and AWS environment.
Technologies: SAP, Azure, SAP S/4HANA, Artificial Intelligence (AI), Machine Learning, SQL, Microsoft Power Platform, Microsoft Dynamics, Azure DevOps, Azure Machine Learning, SAP Integrated Business Planning (IBP), APIs, Architecture, Microsoft Power Automate, Microsoft Power Apps, REST APIs, Business Services, Microsoft Power BI, Microsoft Dynamics CRM

Senior SAP S/4 HANA, SNC, and CLM Integration Architect

2018 - 2019
Saudi Aramco
  • Enhanced service purchase orders (PO), advanced shipping notifications (ASN), and SAP contract lifecycle management (CLM) processes by integrating SAP XI/PI and SAP Ariba.
  • Implemented SAP's Invoice Collaboration process for service entry sheets with SAP SNC portal integrated with ECC using PI/XI.
  • Worked in SAP S/4 HANA, Ariba, Supplier, ABAP, Testing, BAdI, and BAPI.
Technologies: SAP, SAP Secure Network Communications (SNC), SAP Contract Lifecycle Management (CLM), SAP Ariba, SAP ECC

Senior Consultant and Integration Architect

2016 - 2018
Intrigo Systems
  • Worked on multiple projects in SAP S/4 HANA, procurement, logistics, extended warehouse SAP IBP implementation, migration, and integration.
  • Implemented S/4 HANA on-premise-cloud, integrated CPI development, and migrated SAP APO, o9, and Anaplan to IBP.
  • Managed SAP S/4 HANA CPI, HCI integrations with Hybris, EDI, and several non-SAP systems.
Technologies: SAP HCI, SAP Advanced Planner & Optimizer (APO), SAP Electronic Data Interchange (EDI), SAP Process Integration (PI), Migration, Data

SAP SCM Consultant

2014 - 2016
UTC Aerospace Systems
  • Handled post-go-live user acceptance testing (UAT), sign-off and hyper-care support, daily SAP MM/SNC support, and subcontract enhancements.
  • Onboarded over 1,000 suppliers on SAP SNC portal business functionalities implemented by IBM with United Technologies Pratt and Whitney.
  • Engaged in multiple projects, designing, developing, and delivering solutions using SAP SCM, SNC, APO, IBP, HANA, and Mobility in collaboration with IBM's team.
  • Provided support on SAP SNC, SAP APO, and IBP 4.0.
Technologies: SAP ECC, SAP Secure Network Communications (SNC), SAP Production Planning (PP), SAP Solution Management, SAP HCI, SAP Electronic Data Interchange (EDI)

Senior SAP SCM Consultant and Support

2012 - 2013
Bristol-Myers Squibb
  • Worked with the demand planning team in SAP SCM APO 7.0 DP implementation providing offshore and onsite support, representing Accenture.
  • Participated in blueprinting sessions to understand business requirements and propose solutions based on the business processes to meet customers reporting and data requirements.
  • Collaborated on mobile using PO confirmations and led reports, interface, conversion, enhancements, forms, workflow (RICEFW), delivery, and support.
Technologies: SAP Advanced Planner & Optimizer (APO), SAP ECC, GNU Multiple Precision (GMP), CFR Title 21 Part 11

Senior SAP Consultant

2011 - 2012
Church & Dwight Co.
  • Acted as the deployment lead for Canada and NA, responsible for SAP SCM and SNC 7.0 upgrade, 16 web portals, five B2B/EDI vendors, and three manufacturing plants.
  • Used SAP SCM 7.0 APO SNP, DP, and ECC 6.0, integrated with PI, EDI, B2B Sterling, MDM, PS, PM, SD, DMS, GTS, and PLM.
  • Provided functional and technical integration, detailed project plans, blueprints, design enhancements, custom development UAT, end-to-end testing, training, cut-over, and go-live for in-house, direct material suppliers.
  • Developed a detailed SAP project plan, identified risks, and aligned it with the global implementation template with seamless technical integration points with SAP ECC, APO, BI, MDM, PLM, and other systems.
Technologies: SAP Supply Chain Management (SCM), SAP Electronic Data Interchange (EDI), SAP ECC, Ethical Sourcing, Vendors & Suppliers, Collaboration, Training, SAP

Senior SAP SCM Consultant, Lead, and Architect

2006 - 2011
  • Managed multiple SAP projects under the Wyeth SAP Center of Excellence (CoE) using SAP ECC 5.0 and 6.0, MM, PP, SCM APO 4.1 and 5.0 DP, SNP, PP/DS, and GATP with integrations with QM, and SD.
  • Worked closely with the IBM consulting team leading the global external manufacturing and supplies CMO on global SAP SCM implementation and deployments for global external supplies business units, including NA, EMEA, and APAC.
  • Served as ABAP/4 FI-CO solution manager, leading multiple SAP projects with external supplies client's SCM and BT teams using ERP, MM, PP-PI, SD, QM, and SCM APO, DP, SNP, and PP/DS.
  • Gathered business requirements, conducted fit and gap analysis, and handled integration development and end-contract manufacturing virtual networks.
  • Coordinated IDC's offshore and onsite tech code development.
  • Led the manufacturing execution system (MES) integration with multiple plants, PP-PI RICEFW, and the global external supplier's team in SAP supply network collaboration (SNC).
  • Used ARIS with SAP Solution Manager for business process mapping. Played a key role as a liaison between the BT team and Pfizer's global IT teams in the global SAP rollout.
  • Modeled and developed four new contract-manufacturing virtual plants within the client's global supply network and led the end-to-end supply network set up in SAP for 200 SKUs across the worldwide supply chain.
Technologies: SAP ECC, SAP Advanced Planner & Optimizer (APO), Technical Support, Deployment, SAP Materials Management (MM), Integration, Digital Solutions, Leadership, Audits

SAP APO Consultant (Contract)

2006 - 2006
Kellogg's Company
  • Consulted in the implementation of SAP SCM DP 5.0 and DRP replenishment and global rollout and support.
  • Managed ETL transformation and integration with ECC and APO.
  • Provided end-user training and rolled it out in SAP APO.
Technologies: SAP Advanced Planner & Optimizer (APO), SAP ECC, ETL, Training

SAP Consultant (Contract)

2005 - 2006
Cardinal Health
  • Introduced SAP Global Business Integration and enhanced the APO 4.1 RapidResponse supply project.
  • Managed the supply chain system using APO-SNP(CTM)-DP interfaces with SAP R/3, MFG/Pro, JDE, PRMS, and data warehouse.
  • Worked in ABAP, BAdI, and BAPI and provided technical build and support.
Technologies: SAP ECC, ABAP, SAP Advanced Planner & Optimizer (APO)

Senior Functional Analyst

2003 - 2005
Tata Consultancy Services
  • Implemented SAP ECC 4.0, MM, PP, and APO and provided continuous improvement and production support.
  • Led the implementation of SAP PP across the automotive business and the integration of the MES, CAD, and CAM environments.
  • Took responsibility for the internal process controls for the supply chain processes (PP) of Sarbanes-Oxley and SAP risk assessment, including IT audit, internal management, COSO and COBIT, and SOX mitigation.
Technologies: SAP ECC, SAP Advanced Planner & Optimizer (APO), SAP Supplier Relationship Management (SRM), Manufacturing


1997 - 2001
  • Monitored SAP 4.0B production planning instance, SAP PLM, and Pro/ENGINEER PDM.
  • Migrated the legacy ERP to the new SAP ERP system and worked on the SAP ERP system End-user.
  • Used ERP legacy systems like manufacturing accounting and production information control systems (MAPICS), project information management systems (PIMS), and custom-build applications.
Technologies: CAD, CNC, Control Systems, ProE

CNC Programmer

1994 - 1997
Haas Automation
  • Worked as a CNC programmer, shift-in-charge, and shop floor planner.
  • Trained in central stores, inward goods receipt, and IPQC inspections as part of my role as an apprentice.
  • Introduced to production planning and modern shop floor planning systems and several CNC, robotic machine tools, and shop floor management.
Technologies: Computer Numeric Control (CNC) Machines, Quality Assurance (QA)

Supplier Risk Prediction Tool

A supplier risk prediction tool to predict the supplier risk based on the manufacturing complexity and supplier history in SAP and Automation.

Development: An Azure computer vision API reads drawings, machine learning (ML) models trained to read special symbols standers, and a custom algorithm built using C# to determine manufacturing complexity. ML models understand the supplier's history and profile each supplier and material. Data models from SAP and ML models are automated using Azure Logic Apps and Functions, and the result of the prediction matrix is built in PowerBI.
1994 - 1998

Bachelor of Technology Degree in Engineering and Computer Science

Jawaharlal Nehru Technological University - Hyderabad, India


Microsoft Certified: Azure AI Engineer Associate



Exam PL-900: Microsoft Power Platform Fundamentals



SAP Certified Technology Associate - SAP HANA



My SAP SCM – Demand & Supply Planning






Azure Computer Vision API, GNU Multiple Precision (GMP), Azure Cognitive Services, REST APIs, Pipedrive API


SAP S/4HANA, SAP Materials Management (MM), CAD, Microsoft Power Apps, Azure Logic Apps, SAP Fiori, Microsoft Power BI, Microsoft Dynamics CRM, Microsoft Dynamics, Azure Machine Learning, SAP Electronic Data Interchange (EDI), SAP Production Planning (PP), SAP Solution Management, SAP Supplier Relationship Management (SRM), SAP Extended Warehouse Management (EWM)




Azure, Microsoft Power Automate, Microsoft Power Platform


Azure DevOps, ETL, DevOps


SAP, SAP Secure Network Communications (SNC), SAP ECC, SAP Cloud Platform Integration (CPI), SAP Integrated Business Planning (IBP), SAP Advanced Planner & Optimizer (APO), SAP Process Integration (PI), Technical Support, Integration, Machine Learning, Demand Planning, Supply Chain Operations, Sales, Inventory Management, SAP Warehouse Management System (WMS), Platforms, Architecture, Business Services, Operations, Commerce, SAP Business Technology Platform (BTP), SAP Contract Lifecycle Management (CLM), SAP Ariba, SAP HCI, Migration, Data, CFR Title 21 Part 11, SAP Supply Chain Management (SCM), Ethical Sourcing, Vendors & Suppliers, Collaboration, Deployment, Leadership, Manufacturing, CNC, Control Systems, ProE, Computer Numeric Control (CNC) Machines, Quality Assurance (QA), Artificial Intelligence (AI), CI/CD Pipelines, Audits, APIs, Training, Digital Solutions, Articulate Rise

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