Arun Thomas Email & Phone Number

Trivandrum, Kerala, India

Trivandrum, Kerala, India

• Define the application architecture for a B2B eCommerce customer to migrate their Availability, Address and Patient Management services from legacy monolith platform to MicroServices, MicroFrontend architecture on Azure Cloud.• Understand the current application and work with Product Owners to discuss any existing pain-points which needs to be addressed.• Define the API contracts for the Experience and Domain APIs planned.• Define database schemas on Azure Cosmos DB, Azure SQL DB to hold the domain data and define the migration process.• Come up with Rough Order of Magnitude (ROM) Estimate for the planned migration.• Review application design, contracts and ROM with Enterprise Architecture Group for their suggestions and approvals.• Support the team to setup monitoring, alerting and to carry-out performance tests.

Trivandrum, Kerala, India

• Architect an Experience API layer for a B2C eCommerce customer using Apollo GraphQL, NodeJS on AWS Cloud.• Develop and present proofs-of-concepts and prototypes to validate and compare alternate designs.• Propose tools and processes for - Development, Testing, DevOps, Operational Support.• Understand non-functional requirements and define various strategies to ensure that the system is well within SLA limits.• Support the team to setup monitoring, alerting and to carry-out performance and security tests.• Work with other Architects/Teams for integration requirements.

Trivandrum, Kerala, India

• Senior Technical Lead (Offshore) - Lead a multi-member team from offshore.• Work with the team to migrate the post-order (OMS) services for the e-Commerce customer from on-prem servers to AWS cloud using EC2/ECS/Lambda.• Develop proofs-of-concepts and prototypes to validate and compare alternate designs.• Propose application architecture and work with onsite Enterprise Architects to validate the designs.• Set up monitoring and alerts using AWS CloudWatch.• Work with the team to build a new Self-Service Portal based on Infosys Equinox platform for a B2B Telecom client.• Work with the onsite Architects on the module designs.• Effectively communicate the system requirements to team members and work with the team to perform code development and review.

Hoffman Estates, Illinois, United States

• Technical Lead(Onsite) - Lead a multi-member team both onsite and offshore.• Design and develop framework components for eCommerce migration project which includes Data Access layer for accessing CassandraDB, REST service agent module to invoke external/dependent REST services, Kafka module to produce and consume Kafka messages for asynchronous order processing, Configuration module to read configurations from property files, yaml files or from Apache ZooKeeper.• Design and develop Pricing service architecture as part of a plan to have a high-performing highly-available system(using IBM eXtreme Scale distributed cache and REST services) which will have the entire price information of all items sold through online, mobile and store channels for the client.• Effectively communicate the system requirements to team members and work with the team to perform code development and review.• Set up monitoring, management tools and alerts for different eCommerce systems using Graphite, Dynatrace and in-house applications.• Work with performance test team to check the system performance and implement any performance tuning if required.• Lead the team for Black Friday(DATG) and Cyber Monday readiness.

Hartford, Connecticut, United States

• Technical Lead(Onsite) - Lead a multi-member team both onsite and offshore.• Develop SOAP services on WebSphere Application Server - like Healthcare Provider information services and Formulary information services which are used by internet-facing sites and by CSR applications for the healthcare client.• Implement multiple enhancements on the eBusiness site based on WebSphere Portal Server for the healthcare client.• Work with Business Analysts to understand the details of the changes planned, and propose value-add suggestions if possible.• Effectively communicate the requirements to team members, work with the team to create necessary documentation and perform code development.• Perform unit testing of the code using JUnit testcases.• Perform code review and code coverage using Software Analyzer and Corbertura.

India

• Software developer, Module lead.• Implement Java Swing based CSR application for the insurance client.• Implement client side presentation layer in Java Swing.• Perform server side development including creation of Session Beans, Entity Beans and Value Objects.• Responsible for porting the entire CSR application for the client to use Java Web Start.• Perform code reviews using CC-Analyser, an in-house product.• Perform unit testing.