Senior Manager · Backend Engineering · ~8 Years

Amit Upadhyay

Building resilient cloud-native systems for banking at scale.
HDFC Bank · CDAC Mumbai · Java · Spring Boot · Microservices.

Java

Spring Boot

Apache Kafka

Kubernetes

Distributed Systems

Microservices

Prometheus

OpenTelemetry

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Background

About Me

Results-driven Senior Backend Engineer with nearly 8 years of expertise in designing and deploying cloud-native applications using microservices architecture. Currently leading backend engineering at HDFC Bank, specializing in developing resilient distributed systems and modernizing legacy architectures. Proficient in Java, Spring Boot, and enterprise-grade observability.

Experience

Senior Manager — Backend Engineering

HDFC Bank

July 2025 – Present · Mumbai, India

Spearheading development of distributed microservices and leading Proof of Concepts (POCs) for innovative banking solutions at one of India's largest private banks.

▸Architected a custom Resilience & Utility Library to standardize cross-cutting concerns, resolving stability issues across multiple microservices.
▸Implemented automated Database Warmup routines to initialize connection pools, effectively eliminating cold-start latency.
▸Integrated configurable retry mechanisms and exponential backoff strategies to enhance fault tolerance across services.

Java

Spring Boot

Prometheus

Grafana

PostgreSQL

Kubernetes

Docker

Kafka

Technical Lead

CDAC Mumbai

March 2018 – June 2025 · Mumbai, India

Led a team of engineers modernizing monolithic government and enterprise systems, migrating to cloud-native microservices architecture on Kubernetes over 7+ years.

▸Led the modernization of monolithic systems by migrating to microservices architecture deployed on Kubernetes, improving scalability and deployment velocity.
▸Containerized applications using Docker and orchestrated deployments to accelerate delivery cycles.
▸Implemented robust CI/CD pipelines with Jenkins and Git, integrating DevOps best practices to streamline delivery.

Java

Spring Boot

Spring Security

OAuth 2.0

JWT

Kubernetes

Docker

Jenkins

ELK Stack

PostgreSQL

Kafka

RabbitMQ

{}Skills

Languages & Frameworks

Java

Spring Boot

Hibernate

Spring Security

Spring Cloud

RESTful APIs

Cloud & DevOps

Docker

Kubernetes

AWS

Azure

GCP

Helm Charts

Jenkins

CI/CD

Data & Observability

PostgreSQL

Yugabyte DB

Kafka

RabbitMQ

OpenTelemetry

Prometheus

Grafana

ELK Stack

Core Engineering

System Design

Distributed Systems

Performance Optimization

Root Cause Analysis

Education

B.Tech in Electronics and Telecommunication Engineering

University of Pune

2016

Certifications

Post Graduate Diploma in Advanced Computing (PG-DAC)

CDAC · 2018

Architecture

System Design Showcase

High-concurrency microservices architecture powering 22,000 TPS at HDFC Bank — resilient by design, observable by default.

Drag to pan · Scroll to zoom · Hover nodes for details

System Health

Live Observability Dashboard

Mimicking the Grafana dashboards I built at HDFC Bank — Prometheus metrics, distributed traces, and SLO tracking across 50+ microservices.

Throughput

22,000TPS

↑ 12% vs last week

P99 Latency

45ms

within SLO < 100ms

Error Rate

0.800%

↓ 0.002% vs yesterday

Uptime

99.99%

SLO target 99.9%

P50 Latency — Last 24h (ms)

Throughput — Last 24h (RPS)

Service Latency Breakdown (ms)

Portfolio

Featured Projects

Production systems built at HDFC Bank and CDAC — engineered for reliability, performance, and scale.

Resilience & Utility Library

backend

Custom shared library standardizing cross-cutting concerns — retry, exponential backoff, circuit breakers, and observability hooks — across banking microservices at HDFC Bank.

Eliminated cold-start latency · Multi-service stability fix

Java

Spring Boot

Resilience4j

Prometheus

Grafana

PostgreSQL

Internal — NDA

Automated Database Warmup

backend

Connection pool initialization routines that pre-warm database connections at service startup, eliminating cold-start latency in production banking systems.

Cold-start latency → 0 · Production banking grade

Java

Spring Boot

PostgreSQL

Yugabyte DB

HikariCP

Internal — NDA

Monolith → Microservices Migration

devops

Led end-to-end migration of monolithic systems to Kubernetes-deployed microservices at CDAC, containerizing apps and establishing CI/CD pipelines.

Accelerated delivery cycles · Full K8s orchestration

Java

Spring Boot

Kubernetes

Docker

Helm

Jenkins

Git

Internal — NDA

Secure API Platform (OAuth 2.0 + JWT)

backend

Designed and built high-performance APIs with OAuth 2.0 and JWT authentication for third-party integrations at CDAC.

Secure third-party integrations · Enterprise auth

Java

Spring Security

Spring Cloud

OAuth 2.0

ELK Stack Observability Platform

devops

Built centralized log management and observability using the ELK Stack at CDAC, reducing incident resolution time across distributed services.

Reduced incident resolution time · Centralized logging

Elasticsearch

Logstash

Kibana

Docker

Prometheus + Grafana Dashboards

devops

Standardized observability hooks across microservices at HDFC Bank with real-time Prometheus metrics and Grafana dashboards.

Real-time monitoring · Standardized across services

Prometheus

Grafana

Micrometer

Spring Boot Actuator

Writing

Technical Blog

Deep dives on distributed systems, Java internals, and production engineering lessons from banking at scale.

September 10, 2025·9 min read

Building a Resilience & Utility Library for Banking Microservices

How I architected a custom shared library at HDFC Bank to standardize cross-cutting concerns — retry, exponential backoff, circuit breakers, DB warmup, and observability hooks — across a fleet of microservices.

July 22, 2025·11 min read

Monolith to Microservices: Lessons from 7 Years of Migration at CDAC

A candid account of leading the decomposition of large monolithic systems into Kubernetes-deployed microservices at CDAC Mumbai — the technical decisions, the surprises, and what I'd do differently.

May 14, 2025·10 min read

Observability Engineering: ELK Stack, Prometheus, and OpenTelemetry in Practice

A practitioner's guide to building real observability — structured logging with ELK, metrics with Prometheus/Grafana, and distributed tracing with OpenTelemetry — drawn from 8 years of production experience at CDAC and HDFC Bank.