Rajat Sharma

About Rajat Sharma

Senior Software Engineer with 12+ years of experience in building enterprise-grade web applications across global domains including Travel & Expense, Fintech, Event Ticketing, and Retail. Currently working at SAP Labs India on SAP Concur, with hands-on experience in JavaScript, TypeScript, React, Redux, Node, Express, GraphQL, Java (Spring Boot), AWS, Docker, and Kubernetes.At SAP, I have led multiple large-scale initiatives including:• Business AI Assistant Joule for SAP Concur – Led AI feature development across Expense, Request, and Admin modules to automate enterprise workflows. Owned the GraphQL backend-to-frontend stack enabling interactive AI experiences. Built proof-of-concept for collaborative AI agents handling multi-step workflows.• Concur Funds & Grants and Budget Modules – Led architecture and development of micro-frontend applications. Migrated legacy monolith to a cloud-native Lerna monorepo, improving code maintainability and developer productivity by 65%. Improved application performance by 45% through Lighthouse profiling, code-splitting, and caching strategies.• Ensured production-grade compliance with RBAC, secure cookies, HTTPS, input validation, and accessibility (WCAG, ARIA, semantic HTML, A11Y tools).• Set up CI/CD pipelines using AWS CodeBuild, Docker, and Kubernetes. Introduced monitoring with ELK and PagerDuty, reducing customer incidents by 40%.• Mentored 10+ engineers and collaborated with PMs, UX, localization, and accessibility teams to deliver end-to-end product features aligned with business goals.Previously worked at Altimetric, Tesco (Nineleaps), Covalent Capital, and Tech Crayons, contributing to platforms for Ticketmaster (Sponsorship), Novartis (Digital Data Platform), Tesco (Retail Cost Management), and a Fintech Bond Trading Platform.What sets me apart is a disciplined approach to software craftsmanship—grounded in clean, maintainable code, thoughtful architecture, and adherence to industry best practices. I prioritize writing code that is not just functional, but also scalable, testable, and easy to evolve. Whether it\'s implementing design patterns, enforcing code quality standards, or promoting team-wide consistency, I strive to build systems that stand the test of time.

Experience

1. Senior Software Engineer

   SAP

   Oct 2021 — Present · Bengaluru, IN

   Domain: Enterprise SaaS | Travel & Expense Management | Vendor Payments | Business AI | Workflow AutomationProject: Business AI Assistant – Joule (SAP Concur)• Led AI feature development across Concur modules (Request, Expense, Admin) to automate enterprise workflows.• Owned GraphQL backend-to-frontend stack enabling real-time, interactive AI experiences.• Built PoC for collaborative AI agents handling multi-step workflows.• Recognized by SAP CTO & Board for AI innovation.Project: Concur Funds & Grants Integration + Budget Modules• Led UI architecture and development for micro-frontend apps; migrated legacy monolith to cloud-native Lerna monorepo—boosted code maintainability and dev productivity by 65%.• Improved app performance by 45% through Lighthouse profiling, code-splitting, caching, lazy loading, and CDN integration.• Implemented secure, production-grade apps with RBAC, CSRF protection, HTTPS, input validation, and full accessibility (WCAG, ARIA, A11Y).• Built CI/CD pipelines with AWS CodeBuild, Docker, Kubernetes.• Reduced customer incidents by 40% with ELK-based monitoring and alerting (PagerDuty).• Integrated embedded feedback/usage tracking (Qualtrics), driving 30% cost savings.• Mentored 10+ engineers; collaborated with PMs, UX, localization, and accessibility teams.• Contributed to backend services using GraphQL and Java Spring Boot.Project: Virtual Card Payment (Concur Invoice)• Developed accessible, scalable web UI micro-frontend for virtual card payments.• Led stakeholder and vendor communication for integration.• Improved enterprise customer PSAT by 25%.

Education

• Norwegian University of Science and Technology (NTNU)

  Masters

  2009 — 2011

• Indian Institute of Technology, Kanpur

  Bachelor of Technology

  2005 — 2009

• KTH Royal Institute of Technology

  Master Thesis

  2011 — 2011