Dhaval Shah

Principal Software Engineer /  Software Architect / Performance Engineering Aficionado

A detailed-oriented hands-on professional having 18+ years of experience along with exceptional interpersonal skills, seeking a challenging role within Software Development Engineering for architecting, designing and developing low latency / high throughput distributed systems with a sharp focus on scalability, resiliency, operability and monitoring.


Work Experience

Principal - Software Engineering  •  Mastercard

Aug 2022 - Present

Tech Stack - Java 11, Spring WebMVC, Azure, Snowflake, AngularJS

Architect Fraud Insight reporting platform for its end customers
  • Making architecture decisions w.r.t light weight message brokers and caching infrastructure
  • Analysis, troubleshooting and recommendation w.r.t
    • RedissonClient performance issue
    • Proactive memory leak analysis and GC hotspots

Lead - Software Engineering  •  Mastercard

January 2020 - Jul 2022

Tech Stack - Java 8, Spring Webflux, Reactor, MongoDB, Kafka, Apache Spark

Tech Lead with an ownership to drive qualitative and performant implementation of Assemble Platform
  • Implemented Push Provisioning APIs for Prepaid’s Assemble platform using Spring Webflux and Spring Reactor
  • Created Dynatrace dashboards that emit USE / RED metrics to enhance monitoring and observability capabilities of platform
  • Designed and implemented batch jobs as part of the data engineering pipeline for preparing data lake
  • Part of Performance SIG leadership within software engineering guild

Consultant - Software Engineering  •  Mastercard

April 2018 - December 2019

Tech Stack - Java 8, Spring Web MVC, Spring Reactor, Kafka, Oracle


Architected and designed Card Service bounded context with sharp focus on design quality, latency / throughput, operability and monitoring

  • Implemented APIs and batch jobs for Card Service bounded context developed as part of EMV Co. based Secure Remote Commerce. 
  • Designed and Implemented API validation and exception handling framework
  • Implemented schedulers for orphan record deletion (by using Spring Core Reactor) and import of account ranges
  • Successfully completed performance comparison to determine optimal DB model :
          i. MongoDB and PostgreSQL for managing JSON formatted data
          ii. Oracle – row column Vs JSON storage
  • Prepared operations Run Book by capturing application behavior (via Splunk) at probable failure points to ease out troubleshooting and triaging

Consultant - Software Engineering  •  Mastercard

January 2016 - March 2018

Tech Stack - Java 8, Spring Core, Spring MVC, Spring Data JPA, Spring Batch, Oracle

Responsibilities -
Lead design and architecture of Masterpass Wallet. Key highlights :
  • Enhancing existing APIs to support X-Pays
  • Tuned performance of application by 15-20% via
          i. Plugged potential memory leaks by performing thorough GC analysis
          ii. Tuning GC by tweaking some of its flag
          iii. Implementing parallelized and asynchronous flows as per its applicability

Consultant - Software Engineering  •  Mastercard

January 2014 - December 2015

Tech Stack - Java 6, Spring Core, Spring MVC, Spring Data JPA, MySQL

Responsibilities -
Lead design and architecture and performance aspects of backend. Key highlights :
  • Scaled application backend from 3 lac to 6 lac users by
          i. Tuning DB queries
          ii. Reducing memory footprint and GC tuning to reduce CPU utilization and latency

Tech Lead  •  C-Sam Solutions

July 2010 - December 2013

Client - Axis Bank

Tech Stack - Java 6, Struts, Spring, Hibernate, Oracle

Responsibilities - Lead Axis bank's mBanking application.

Module Lead  •  Paul Mason Consulting

September 2008 - June 2010

Client - British Telecom - Fresca

Tech Stack - Java 5, Struts, Axis 2, MySQL, Hibernate

Lead a client dedicated team to deliver omni channel capability by integrating heterogeneous systems

Programmer Analysts  •  Cognizant Technology Solutions

July 2005 - August 2008

Client - JPMC - IB
Tech Stack - Java 4, Struts, Spring, Hibernate
Delivery of key modules for Futures and Options / Docport application


2002 - 2005

The M.S University of Baroda

Masters of Computer Application

1998 - 2002

SVIT Vasad

Bachelors of Engineering - Civil


Design / Architecture

  • Microservices
  • Cloud Native Architecture
  • Event Driven Architecture
  • Domain Driven Design

Programming Language / Frameworks

  • Java 8
  • Spring Boot, Spring Webflux, Spring Reactor, Spring Core
  • Intellij, Git, Splunk, Gatling, Dynatrace, Eclipse MAT, Unravel
  • CosmosDB, MongoDB, Cassandra, Oracle
  • Apache Spark
  • Kafka

IaaS / PaaS

  • Azure
  • Pivotal Cloud Foundry