Hi, I’m Varun Kumar

Enterprise IAM & SAP Identity Management

Worked on enterprise identity and access management solutions using SAP IDM and IT IDM to manage users, groups, roles, privileges, and identity lifecycle workflows across connected systems.

• Developed and maintained IDM jobs using Java and JavaScript.
• Supported integration with systems such as ABAP and ServiceNow.
• Worked on IPS-based provisioning of users and groups to target systems.
• Resolved technical issues and service tickets related to SAP IDM and IT IDM.
• Optimized SQL scripts to improve query performance and system efficiency.

SAP BTP GenAI Chatbot with RAG

Developed a Generative AI chatbot on SAP BTP to answer Deloitte-specific queries by retrieving relevant information from SharePoint documents using embeddings and Retrieval-Augmented Generation.

• Built the chatbot using SAP BTP, CAP, and SAP AI Core.
• Implemented LLM-based embeddings and RAG for contextual question answering.
• Integrated SharePoint with SAP BTP for document ingestion and semantic search.
• Designed the solution for secure and scalable enterprise knowledge retrieval.

SAP Fiori AD Group Management App

Worked on a SAP Fiori-based Active Directory group management application used to create, update, deactivate, audit, and synchronize AD groups.

• Supported group owner, approver, ARM enablement, validity period, and sync flag management.
• Worked with CAP/OData services and HANA persistence.
• Used XSUAA authorization, BTP destinations, email notifications, and audit logs.
• Supported synchronization-related capabilities for Microsoft Entra ID and Google Cloud.

FastAPI IAS Migration Service

Developed an asynchronous FastAPI-based IAS migration service for enterprise identity scenarios involving cross-tenant application migration and job-based reporting.

• Built backend services for cross-tenant application migration.
• Supported bulk parent/child application operations and selective field propagation.
• Implemented backup/export, audit logging, and migration reporting.
• Added structured JSON logging, correlation IDs, request auditing, XSUAA scope-based authorization, async rate limiting, and cooperative job cancellation.
• Enabled SAP BTP Cloud Foundry deployment through Honeycomb CI/CD.

Enterprise GenAI Tax Research Assistant

Contributed to a company-internal GenAI research assistant designed to help domain consultants perform contextual document search, source-grounded Q&A, legal/tax document summarization, alert generation, and risk-oriented review workflows using an enterprise RAG architecture.

• Worked on a SAP BTP-aligned GenAI architecture using SAP AI Core / Generative AI Hub for foundation model access and SAP HANA Cloud Vector Engine for semantic retrieval over enterprise documents.
• Designed a RAG-based document intelligence workflow where source documents are ingested, cleaned, chunked, embedded, stored as vectors, retrieved through similarity search, and passed to the LLM as grounded context.
• Supported SharePoint-based knowledge ingestion using Microsoft Graph API patterns, including document listing, file download, PDF/DOCX/TXT text extraction, chunking, embedding generation, and vector storage.
• Implemented incremental synchronization design using Microsoft Graph delta query concepts so newly added, updated, and deleted documents can be processed without re-indexing the entire document library.
• Built source-grounded Q&A patterns where answers are generated only from retrieved context and returned with citations, evidence snippets, confidence score, confidence label, and limitations for further review.
• Contributed to domain-specific GenAI capabilities such as case law summarization, tax alert generation, and contingent liability / risk-oriented review using controlled prompt templates and context-only generation rules.
• Added GenAI governance patterns including prompt guardrails, hallucination-reduction instructions, audit logging, user feedback capture, request tracking, and response traceability.
• Supported enterprise security and deployment readiness using SAP App Router, XSUAA-based role patterns, JWT/scope-aware backend design, SAP BTP Cloud Foundry deployment structure, service bindings, and environment-based configuration.

Unified Wealth Platform & Trade Network

Contributed to financial technology platforms supporting wealth management, trading operations, client account management, reporting, and order execution workflows.

• Worked on Unified Wealth Platform and Trade Network.
• Developed and maintained trading and wealth management reports.
• Supported reports such as Sleeve Drift, Security Drift, Drift Rebalance, Scheduled Rebalance, Full Liquidation, and Partial Liquidation.
• Designed Trade Network workflows for order creation, sponsor submission, and order confirmation.
• Contributed to FIX protocol-based order execution workflows.

PM&T Trading Engine Enhancements

Contributed to financial technology and trading engine-related projects for PM&T, focusing on audit reporting, rebalance workflows, legacy code refactoring, debugging, and documentation.

• Enhanced audit reports for order committing, routing, and execution processes.
• Optimized functionality for rebalance and trading engine workflows.
• Refactored and modularized legacy codebases.
• Debugged and resolved system issues.
• Created development documentation and participated in code reviews.

Hackathon · 2026

Band of Agents Hackathon — DevBand

Built DevBand, a Band-powered multi-agent software delivery workflow that demonstrates real agent-to-agent collaboration across planning, implementation, testing, code review, revision, and documentation.

• Created a full-stack multi-agent software delivery system where six specialist agents collaborate to transform a feature request into a PR-ready delivery package.
• Implemented specialist agents including Product Planner Agent, Software Engineer Agent, Test Engineer Agent, Code Reviewer Agent, Software Engineer Revision Agent, and Documentation Agent.
• Used Band as the core collaboration layer by creating live workflow rooms, adding specialist agent identities, posting structured task events, recording handoffs, review decisions, revision activity, and final completion.
• Built a visible workflow timeline showing how context moves across agents, making the collaboration auditable and easy to explain during demos.
• Generated a final Markdown PR package containing implementation guidance, test strategy, review feedback, revised code suggestions, developer notes, release notes, and README update content.
• Added AI/ML API integration for agent reasoning and generation, with fallback logic, daily request limits, prompt trimming, output token controls, and cache-based cost guards.
• Built the frontend using React, Vite, and Tailwind CSS, and the backend using Node.js and Express.
• Prepared deployment support with Vercel for the frontend and Render for the backend.

Volunteering

Community Involvement