About

About

Hi, I’m Harshit Jain

I’m an Associate Principal Engineer at Nagarro, based in Pennsylvania, USA, with 12+ years of experience designing and delivering scalable distributed systems, microservices architectures, and high-performance APIs.

My work sits at the intersection of deep engineering and product impact. I rebuilt an order fulfillment system that cut customer complaints by 70% and drove a 20% increase in annual revenue. I designed telecom platforms processing 1M+ async operations a day at 99.9% reliability. I led the API performance overhaul that brought average response times from 200ms down to 4ms — for a team of 20+ engineers. I’ve architected GraphQL schemas that reduced data over-fetching by 40% and driven large-scale digital transformation programs across telecom, construction, and e-commerce domains.

I received the Brightest Mind Award at Nagarro (2019–2023) — recognition across five consecutive years for consistently delivering high-impact engineering work.

What I Specialize In

Architecture & Systems Design

  • Distributed microservices with resilience patterns — Saga, circuit breakers, bulkheads, event-driven design
  • GraphQL federation: unified schema across autonomous teams
  • API performance optimization — Redis caching, query profiling, Fastify, bringing response times from 200ms to 4ms

Cloud & Infrastructure

  • Multi-cloud experience across AWS, Azure, and GCP (GCP certified)
  • Containerized workloads with Docker, Kubernetes, and OpenShift
  • Async messaging at scale with Kafka and RabbitMQ

Engineering Leadership

  • Technical architecture ownership end-to-end — from whiteboarding to production
  • Cross-vendor coordination on complex integrations (Autodesk, MuleSoft, Ericsson, government systems)
  • Mentoring engineers, running agile squads, driving requirement gathering

Career Highlights

Nagarro — Construction Tech (2023–Present) Architected GraphQL federation for a construction platform integrating Autodesk, MuleSoft, Mendix, and Revit — reducing project delivery timelines by 30% and enabling teams to develop autonomously while sharing a unified API.

Nagarro — E-Commerce Platform (2022–2023) Led microservices platform redesign; rewrote the order fulfillment system using the Saga pattern for automatic refund flows, making each step in the transaction chain compensatable so partial failures resolve cleanly without manual intervention. Result: 70% drop in customer service tickets, 20% increase in annual revenue, 85% improvement in API response times.

Nagarro — API Performance (2021–2022) Led a team of 20+ engineers in rebuilding critical APIs on Redis + Fastify + NestJS, with circuit breaker patterns instrumented throughout and New Relic monitoring across the stack. Achieved 4ms average response time — down from 200ms. Downstream resilience improved by 90%.

Nagarro — Telecom Digital Transformation (2019–2021) Telco lead for a major Middle Eastern operator’s full digital transformation — integrating BSS, Ericsson Mobile Activation, and government systems (SIMATI, ABSHER) via Camunda BPMN. Built fully containerized onboarding and self-care workflows on OpenShift; RabbitMQ pipeline handling 1M+ operations/day at 99.9% reliability.

GoldVIP Technology Solutions (2015–2017) Joined as Senior Software Engineer with a mandate to stabilize and scale a consumer mobile app that was buckling under its own growth. Led the complete backend re-architecture in Node.js — a 300% performance improvement over the PHP predecessor. Built RabbitMQ-based queuing services for reliable sequential processing of async tasks, implemented Amazon SQS to handle concurrency under high-traffic spikes, and performed extensive load testing on EC2 Auto Scaling Groups to identify and eliminate latency bottlenecks before they hit production. Developed an in-house Communication Manager that automated targeted marketing across customer segments without disrupting live systems, and a Campaign Manager enabling dynamic configuration of campaign rules and personalized engagement workflows — the Communication Manager delivered a 45% campaign lift. Contributed to the cloud migration from AWS to Microsoft Azure, maintaining near-zero downtime and reducing cloud costs by 25%.

Currently Exploring

  • Quantum computing — Post-Graduate program (CEPQIP) at IIT Delhi, focused on quantum-classical hybrid systems
  • AI integration — ICAgile certified; exploring practical AI in distributed system design
  • Writing technical deep-dives on architecture patterns, GraphQL, and system resilience

Certifications

  • Google Cloud Professional Cloud Architect
  • Google Cloud Professional Cloud Developer
  • Professional Scrum Master (PSM 1)
  • ICAgile Certified Professional – Foundations of AI

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