Implemented RESTful APIs using JAX-RS, Jakarta, Jersey-based specifications, and Scala.Utilised Agile methodology for continuous application development to ensure adaptability and user satisfaction.Developed services as part of a comprehensive application, including both UI and backend components.Collaborated on the development of a React-based application to create a user-friendly interface for sales and trading teams.Implemented RESTful APIs using JAX-RS, Jakarta, Jersey-based specifications, and Scala.Utilised Agile methodology for continuous application development to ensure adaptability and user satisfaction.Practiced Test-Driven Development (TDD) to ensure code quality and accurate reflection of expected functional behaviour.

* Developed Spark Applications by using Scala, Java and Implemented Apache Spark data processing project to handle data from various RDBMS and Streaming sources.* Designed a distributed system using Scala and the AKKA Actor Model that runs on multi-core machines. The server and client(s) are designed to share the work. Server can work independent of a client.* Created RDDs and Data Frames in Spark to do the transformations and actions with Scala and Spark SQL, and used Spark Streaming to process click streams* Implemented multiple CI/CD pipelines as part of DevOps role for us on-premises and cloud-based software using Jenkins, Chef and AWS/Docker.* Created data pipeline for different events of ingestion, aggregation, and load consumer response data in AWS S3 bucket into Hive external tables in HDFS location to serve as feed for tableau dashboards.* Developed a Query able State for Flink by Scala to query streaming data and enriched the functionalities of the framework.* Implemented Spring Boot, Cloud, Spring data using CRUD repository, Spring Batch, Spring Kafka modules.

* Decoupled a heavy application into micro-services.* Integrated micro-services to send custom metrics and logs to Prometheus.* Created Spring Boot micro-services based on SQS and SNS for delivering emails.* Utilised Docker to containerise micro-services and deployed them on AWS ECS.* Implemented a pluggable and lightweight Splunk log forwarder and GitLab CI Stages' status aggregator.* Enhanced existing GitLab templates for seamless log integration from GitLab CI stages.

Contributed to a standalone application with over 50+ modules and services designed to perform specific business logic.Implemented new features in the GUI using Java Swing toolkit.Migrated Java classes to Scala, utilising advanced features like Case Classes, Pattern matching, Objects, and Lazy computation for code optimisation.Developed AWS Lambda functions and deployed them using AWS CloudFormation.Deployed backend service images on different environments using AWS ECS and EC2.Documented, visualised, and interacted with RESTful APIs using Swagger UI with JSON as the data-interchange format.Automated workflows and CI/CD processes using GitHub Actions.