Aug 2016 – Dec 2023 · 7 yrs 4 mos · On-site

• As Technical Co-Founder, I led the company’s technology vision, architecture, and digital transformation, evolving WAAY Group into a modern, data-driven e-commerce enterprise. I directed engineering, infrastructure, analytics, and automation initiatives that enabled scalable, reliable, and secure operations.
• Highlights & Achievements
• Defined the company-wide technology roadmap aligned with growth and customer experience goals.
• Oversaw migration from Magento to Shopify, improving scalability, maintainability, and uptime.
• Guided cross-functional teams across development, infrastructure, and analytics, building a culture of reliability and innovation.
• Designed a high-availability AWS EC2 architecture with load balancers, secured via Cloudflare CDN, WAF, and JS Workers.
• Implemented a MySQL 3-node cluster for redundancy and zero-downtime recovery.
• Introduced Docker for standardized environments and reproducible deployments.
• Established Git-based version control and CI/CD pipelines for continuous delivery.
• Deployed New Relic APM for real-time performance visibility and Papertrail for centralized logging.
• Integrated QuickBooks to automate accounting, reconciliation, and reporting.
• Enabled data-driven operations through Facebook Pixel, Google Ads/gtag, Courier APIs, WhatsApp Business API, and Heatmaps.
• Embedded AI-First development thinking, preparing the stack for generative AI automation.
• Core Technologies
• Shopify | Magento | PHP | JavaScript | MySQL (3-Node Cluster) | Docker | Git | CI/CD | AWS EC2 + Load Balancer | Cloudflare | New Relic | Papertrail | QuickBooks | Courier APIs | WhatsApp Business API | Facebook Pixel | Google Ads | Heatmaps

Sep 2014 – Jun 2016 · 1 yr 9 mos · Remote

• Designed and developed high-throughput, distributed data ingestion pipelines handling large-scale event streams and microservice communication across enterprise-grade systems. The architecture emphasized resilience, low latency, and real-time analytics integration.
• Key Technical Contributions
• Engineered a multi-tenant microservices architecture accessible via API Gateway, ensuring consistent service discovery, routing, and fault isolation.
• Designed a data ingestion and log aggregation system capable of processing millions of records per hour, built on Kafka, ActiveMQ, and custom streaming connectors.
• Implemented asynchronous event-driven data pipelines, transforming and routing telemetry data from diverse upstream producers to downstream consumers.
• Leveraged NoSQL (MongoDB) and distributed data stores for scalable event persistence and real-time querying.
• Developed stream processors using Kafka Streams for stateful aggregation, windowed joins, and event enrichment.
• Applied Spring Boot, Spring MVC, Hibernate, and JPA to build modular, testable, and high-performance backend microservices.
• Integrated Hadoop ecosystem components (HDFS, Hive) for historical data warehousing and batch analytics.
• Optimized JVM performance using Maven dependency tuning, thread pool management, and async I/O operations.
• Employed JDBC and custom ORM layers for hybrid persistence and dynamic schema generation.
• Delivered secure, stateless REST endpoints using Servlets, JSP, and JSF, ensuring API reliability and consistency.
• Tech Stack
• Java (8/EE) | Spring Boot | Hibernate | JPA | Kafka | ActiveMQ | Hadoop | Hive | JDBC | Servlets | JSP | JSF | MongoDB | Maven | Streams | Microservices | API Gateway

Jul 2013 – Aug 2014 · 1 yr 1 mo · On-site

• Led end-to-end design and development of enterprise Java solutions for multiple client-facing products, including K-12 Education Systems, Business Rule Engines, and Client–Server Applications optimized for mobile web delivery.
• Key Technical Contributions
• Provided technical leadership to a cross-functional engineering team, enforcing clean architecture, reusable components, and consistent code standards across projects.
• Designed multi-tier Java EE applications leveraging Spring Framework, Spring MVC, Hibernate, JSF, and IBATIS, achieving modularity and maintainability.
• Implemented presentation layers using JSP, Velocity, and Apache MyFaces, ensuring responsive UI performance on browsers and mobile devices.
• Built business rule engines in JavaScript integrated with backend validation services for dynamic form logic and decision workflows.
• Developed and consumed REST and SOAP web services, establishing secure interoperability between client portals and enterprise systems.
• Applied Spring JDBC for data persistence and Apache POI for automated Excel-based data import/export pipelines.
• Optimized JVM performance, connection pooling, and caching strategies for high-concurrency user sessions.
• Conducted peer code reviews, mentoring junior developers on design patterns, unit testing, and deployment best practices.
• Core Technologies
• Java EE / SE · Spring Framework · Spring MVC · Hibernate · JSF · IBATIS · Velocity · JSP · Servlets · Spring JDBC · Apache POI · MyFaces · JavaScript · Business Rules Engine · Agile Scrum

Jun 2010 – Jul 2013 · 3 yrs 1 mo

• Led architecture and development for enterprise-grade applications serving US and UK clients including Global Data Point, Wozzon, MoneyHouse, and Rentatec LLC. Managed a team of 8 engineers, overseeing backend architecture, data optimization, and scalable service delivery.
• Key Contributions
• Directed end-to-end design of multi-tier web and data systems, integrating Java EE, Spring, and Hibernate frameworks.
• Optimized relational data systems using Oracle 9i/10g, MySQL, and PL/SQL, creating materialized views for real-time analytics and reporting.
• Designed asynchronous data-fetching mechanisms and callback-based APIs to support high-performance, concurrent web applications.
• Established secure and reliable deployments via Apache Tomcat and GlassFish Servers.
• Standardized development practices, code review processes, and cross-team collaboration.
• Core Stack
• Java · Spring Framework · Oracle 9i/10g · MySQL · PL/SQL · Servlets · JSP · Velocity · JSF · Hibernate · IBATIS · Apache Tomcat · GlassFish

Sep 2008 – May 2010 · 1 yr 8 mos

• Engineered the WoZZon distributed event search engine, a multi-platform web application with integrations across iOS and Symbian apps for UK clients.
• Key Contributions
• Built distributed search and indexing services using Apache Lucene and ActiveMQ for asynchronous message-driven architecture.
• Developed REST APIs and MVC-based backend layers for seamless data exchange and modular scalability.
• Designed DAO and service layers with Spring MVC and Hibernate, ensuring robust persistence and clean separation of concerns.
• Delivered front-end functionality using HTML, CSS, jQuery, and OSGi modular design patterns.
• Implemented PostgreSQL for data storage with optimized queries and schema design for search relevance.
• Core Stack
• Java · Spring MVC · Hibernate · REST API · Apache Lucene · ActiveMQ · OSGi · jQuery · HTML · CSS · PostgreSQL

Jun 2007 – Sep 2008 · 1 yr 3 mos

• Web Applications for US based clients, the applications including SFR, Subsidiaries Management System, Consolidated Tax Returns, Reporting Manager, Records Aggregation System from non RDBMS systems such as Domino Server. Wrote extension migration tools in Java to perform ETL operations on legacy systems.
• Java, Spring, Oracle 9i, Ajax, DWR, JDBC, RMI, JavaScript, Swing, HTML, DHTML, XHTML, Design Patterns, MyEclipse, Netbeans

Jun 2006 – Jun 2007 · 1 yr

• Developed web applications for General Electric, USA. Tax file systems, Entities Reporting Tool, Migration from Domino Server to Java Platform. Web applications were using Spring MVC along with JSP to render HTML for front end and AJAX was implemented in core JavaScript
• Java, Spring, Oracle, JTidy, JScrape, iReports, Jasper Reports, Eastwood Charts, JConsole, JNDI, JOONE etc