Architecting SAP
futures one clean core at a time.
I'm Manish Kumar Rajak — a Technical Architect with 13+ years designing ABAP, S/4HANA, RAP, CDS & Fiori solutions for global enterprises. Now blending traditional SAP craft with AI-assisted delivery.
- Years in SAP
- 13+
- Global Enterprises
- 4
- S/4HANA Delivery
- E2E
Manish Kumar Rajak
Technical Architect · SAP
01 · About
Translating business vision into robust SAP architectures.
Currently providing cross team solutions and design across SFCC, OMS, CPI and the COE Leadership Team, leading a team of five while driving ABAP, UI5 and ABAP on HANA delivery for global enterprises.
Over 13 years across Infosys, Wipro, CGI and Fossil Group, I've designed and rolled out SAP ERP solutions for pharma, energy, manufacturing and retail — specializing in S/4HANA and cloud-first architectures, performance-critical ABAP on HANA, and modern paradigms like RAP, ABAP Cloud, CDS, AMDP and OData.
Today I'm bringing secure, governed AI into everyday SAP delivery — Claude Code, ADT MCP and Gemini Assist for scaffolding, code review and documentation — so teams can focus on business outcomes, not boilerplate.
What clients get
- Scalable, modular architectures aligned with clean-core S/4HANA
- Performance wins via HANA code push-down and CDS modeling
- Development standards, code quality frameworks and governed reviews
- Integration strategy: OData, APIs, event-driven, BTP CPI/APIM
- Legacy remediation & S/4HANA conversion support
- AI-augmented delivery without compromising SAP governance
02 · Expertise
Six pillars of an enterprise-grade SAP practice.
From data modelling on HANA to AI-assisted ABAP — a full-stack SAP architect's toolkit.
S/4HANA Architecture
Modular, cloud-first solution architectures aligned with clean-core and long-term digital transformation goals.
ABAP on HANA
Code push-down, CDS-based modeling, AMDP and performance tuning to squeeze the most out of HANA.
RAP & ABAP Cloud
RESTful ABAP Programming with the latest 7.5+ syntax — clean, testable, extensible.
SAPUI5 / Fiori
Responsive Fiori apps, OData services, Workflow and end-to-end integration across SAP modules.
BTP & Integration
SAP CPI, BTP APIM, event-driven OData and API strategies bridging ECC, S/4HANA and best-of-breed systems.
AI-Assisted SAP
Secure, governed AI in ABAP delivery — Claude Code, ADT MCP, Gemini Assist for scaffolding, review & docs.
03 · Tech Stack
The full toolbox.
Core ABAP
HANA & Modern Stack
Integration & Cloud
AI & DevOps
Functional Reach
04 · Experience
A 13-year trajectory across global enterprises.
Technical Architect · Fossil Group, Inc.
Jul 2023 — Present · Bengaluru
Architecting cross-team solutions across SFCC, OMS, CPI and the COE Leadership Team, leading a team of five while driving ABAP, UI5 and ABAP on HANA delivery for global enterprises.
- End-to-end SAP FI Automatic Clearing with Ayden payments
- SAP SD ↔ Amazon (BWP) integration — sales, returns, inventory
- SAP WM enhancement design for RF Gun operations
- OData services on ECC EHP5 exposed via BTP APIM for AI Agents
- CDS data modeling for multiple reports & OData services
- AI-assisted ABAP with Claude Code + ADT MCP
Lead Analyst · CGI
Nov 2018 — Jul 2023 · Bengaluru
Delivered ABAP (WRICEF), UI5 and ABAP on HANA solutions for global manufacturing clients. Led rollouts, Git migration and a team of five.
- Responsive UI5 app monitoring SAP FI transactions
- Vendor invoice Workflow enhancements for FI payments
- Workflow tracking & error rectification tool
- OData & CDS views powering multiple Fiori apps
- Sub-project, rollout and GIT migration leadership
Associate Consultant · Wipro Limited
May 2017 — Nov 2018 · Kolkata
UI + backend developer for an Australian energy client — UI5, OData and Workflow across SAP PM and DMS.
- Responsive UI5 work-order app on SAP WEB IDE
- Workflow for DMS document approvals
- BAdI implementations & customer exits
- CDS views feeding OData for Fiori Elements apps
Technology Analyst · Infosys Technologies
Oct 2012 — Apr 2017 · Pune
Analyzed, designed and developed SAP solutions for a major pharmaceutical client across FI, MM and SD.
- Global Security Tool for automatic role assignment (10+ company codes)
- Complex classical, ALV and OOPs ALV reporting
- RFCs bridging SAP ↔ non-SAP systems
- SmartForms & SAPScript for SAP FI
- Performance tuning & production debugging
05 · Recognition
Awards & honours.
Employee of the Year 2025
Fossil Group · May 2026
Recognition for dedication to innovation, teamwork and impact in the SAP ABAP technical area.
Key Contributor Award
CGI · Sep 2020
For consistently going above and beyond during the pandemic period.
APPLAUD — Generative AI at SAP
Recognition
For leading adoption of Generative AI patterns within SAP delivery.
SAP Modules
FI · CO · SD · MM · PP · WM · PM · APO
Recent Focus
AI-assisted ABAP delivery
Cloud
BTP · CPI · APIM
Delivery
Rollouts · GIT migrations
06 · Let's build
Have an SAP challenge worth solving?
Whether it's an S/4HANA conversion, a performance-critical HANA workload, or bringing AI into your ABAP practice — let's talk.
HSR Layout, Bengaluru · India