Nitin Gupta

About Nitin Gupta

Senior Engineering Leader with 16+ years of experience driving large-scale platform transformation across Payments, Identity, Cloud Infrastructure, and AI-native systems. I currently lead strategic core platform initiatives at PayPal India, delivering secure, resilient systems that power hundreds of millions of users and billions of daily transactions globallyAcross PayPal and Fidelity, my technical leadership has spanned end-to-end ownership and architecture of large-scale, mission-critical payment and identity ecosystems. I have designed and scaled real-time, always-on financial platforms built on reactive, event-driven microservices using Non-Stop Architecture principles (active-active, CQRS, event sourcing, actor model). These platforms enable high-throughput payment initiation, authentication, authorization, and settlement flows with strong reliability, fault tolerance, security, and regulatory compliance.I have spearheaded large-scale cloud modernization initiatives, migrating 300+ services to a cloud-native, cell-based architecture leveraging Kubernetes, service mesh (Istio), and zero-trust security. This transformation incorporated globally distributed, cloud-native databases and data platforms (SQL and NoSQL) designed for geo-partitioning, sharding, high availability, and fault isolation — significantly improving scalability, resilience, deployment velocity, and cross-region expansion readinessIn parallel, I drive AI-native innovation by operationalizing Generative AI within financial systems — from advanced device intelligence and identity risk models to fine-tuned LLM-powered conversational payment agents. My focus is on responsibly integrating AI into secure, production-grade platforms that deliver measurable business valueCore Areas of Impact: Platform Strategy & Transformation | Cloud-Native & Cell-Based Architecture | Payments & Identity Ecosystems | AI-Native Platform Systems | Zero-Trust Security | Engineering Organization Leadership

Experience

1. Engineering Leader

   PayPal

   Jan 2021 — Present · Bengaluru, IN

   Leading teams to develop scalable, resilient, configurable, and customer-centric In-house, custom Identity platform.• Overseeing 40+ applications/services characterised by high scalability, low latency, high availability, high throughput, and configurability.• Leading the redesign of existing micro-services to handle future scale with real-time analytics at scale.• Collaborating cross-functionally with multiple teams and stakeholders.• Spearheading the development of key platform features for PayPal, including Fastlane (Accelerated Checkout), AiXO with Payment Ready APIs, User Identification system with Device fingerprinting, Centralised Edge Authorisation system, and next-gen Password-less Authentication system with Passkeys

Education

• M.B.M. Engineering College, Jodhpur

  B.E.