As part of BVNK’s Merchant Payment Service (MPS) engineering team, I design and build large-scale, fault-tolerant backend systems powering BVNK’s global payment processing platform (digital assets + fiat, real-time settlement).

Key responsibilities include designing high-performance Java microservices (Spring Boot, Kafka, PostgreSQL, AWS) handling millions of transactions/events; building payment orchestration, wallet management, ledger movements and exchange services; processing blockchain events (BTC, ETH, SOL, etc.) and supporting stablecoin flows (e.g., USDC/USDT); and collaborating with Product/DevOps/Data/Engineering to deliver scalable, secure, production-grade services.

Tech stack: Java 21, Spring Boot, Kafka, PostgreSQL, AWS (ECS, RDS, CloudWatch), Micrometer, Keycloak, Liquibase, Docker, Git CI/CD

Worked on the next generation of the Global Prime Brokerage microservices framework, including design and development of fully non-blocking/asynchronous REST APIs, data transformation, and data movement across complex systems using Java, message brokers, and cloud open-source solutions.

Contributed to engineering leadership across platform components, including code reviews and guidance to junior and mid-level developers.

Tech stack: Java 11, Spring Boot, Kafka, Oracle, Microsoft Azure, Docker, Keycloak (OAuth/OIDC), Liquibase, Micrometer, Prometheus, Grafana, JUnit, Mockito, Testcontainers, Git-based CI/CD

Built backend microservices for NAVX, providing daily critical insights for mutual fund managers and operations involved in trading mutual funds and ETFs (NAV-based workflows).

Integrated multiple external provider feeds and internal data sources, using Kafka for event streaming, IBM MQ, and Pentaho for ETL transformations; implemented fully non-blocking/asynchronous REST APIs with Spring Boot and Spring Cloud, with React used for the front end.

Tech stack: Java, Spring Boot, Kafka, Oracle, AWS, Docker, Keycloak (OAuth/OIDC), Liquibase, Micrometer, Prometheus, Grafana, JUnit, Mockito, Testcontainers, Git-based CI/CD

Designed and developed highly available, low-latency backend microservices for MIS, a cloud-based school administration and timetabling platform.

Participated in production deployments of new features and proposed technical improvements by evaluating new technologies and creating proof-of-concepts for integration into the existing stack.

Tech stack: Spring MVC, Spring Batch, Spring Boot, Play Framework, Kafka, RabbitMQ, JPA, Spring Data Jpa, Hibernate, Oracle, MySql, VueJs, Tomcat, Git, JUnit, Mockito, Scala Test

Contributed to the redevelopment of the Finance, Risk & Compliance (GFRC) platform focused on Financial Crime Control solutions, modernizing a long-running codebase onto a new stack.

Provided critical support, architecture input, and enhancements; produced estimates and impact analysis for engineering change requests; and mentored junior developers to help deliver quality code on schedule.

Tech stack: Java EE, REST, Struts Framework, Oracle, Spring MVC, Spring Batch, Spring Boot, MyBatis, JPA, Hibernate, JavaScript, AngularJs, JSTL, Tomcat, TFS, JUnit, Mockito

Developed in-house and web-based applications using Java technologies, delivering new functionality across back-end and front-end components.

Debugged/troubleshot issues and handled configuration management; identified and addressed conflicts with newer client-implemented software; and contributed accurate development time estimates.

Tech stack: Java EE, REST, Spring MVC, Spring Boot, Spring Batch,Spring Data Repositories, Spring Security, JPA, Hibernate, JDBC Template, JUnit, Mockito, DB2, MySQL, AngularJs, Bootstrap, Bluemix, Watson API’s.

Assist with software development of existing SaaS company’s software & new company products. Designed and developed software-based prototypes.

Tech stack: Spring Security, Spring Data Repositories, JPA, Hibernate, Eclipse Link, KendoUI, jQuery, GWT, Smart GWT, Oracle, MySQL, Junit, Mockito

Provided company support, regulatory interpretation and guidance across import/export documentation, import assists, import/export licensing, import customs clearance, and Incoterms.

Processed shipment documentation in compliance with local government regulations; handled billing and service proposals; followed up with stakeholders; generated reports; and supported monthly budget targets in revenue and margin.