Dec 2016 – Aug 2021 · 4 yrs 8 mos

• Wells Fargo - Online Banking Application
• Redesigned critical use cases by refactoring service API and parameters which lead to about 85% performance efficiency gains, 70% reduction in traffic which constitute for 40 M hits on website.
• Designed and developed APIs to power the application with more than 30M users. Also designed horizontal scaling using Kafka, Strom, MongoDB which improved peak performance and availability.
• Added resiliency for all service calls, improving service availability by more than 35%. Also lead team on CSRF, XSS, CSP and other security initiative hence improving overall security and certifications.
• Worked to make the sytems relelient using various architecture patterns like ring buffer, bulk head etc.
• Deigning and solutioning the M2 common secure core components to be used across platforms.
• As a tech lead/architect - devised development process & coding standards, implemented reference architecture that can be followed by teams, mentored junior team members.
• Development of new features and maintenance of existing with small enhancements.
• Requirements Gathering & Co-ordination with clients for requirements with business users, onsite technical team.
• Involved in performance improvement of the key modules and redesign where needed.

May 2014 – Nov 2016 · 2 yrs 6 mos

• Aetna - Plan Sponsor Application
• Designed multiple web services for case install thereby reducing the SLA from a week to a day.
• Worked to ehance the Blaze rules engibe to generate the C-S-A (Control Suffix and Account) for the group insurance.
• Requirements Gathering & Co-ordination with clients for requirements with business users, onsite technical team.
• Managed a team of 10+ team members across different geographical locations.
• Analyzing, designing, developing, coding of new functionality in for Benefits application
• Developed various batch jobs for data extractions and reporting.
• Preparing High Level Design Document for teams to develop code and intergration with other applications.
• Involved in writing unit test, Unit testing, Debugging and bug fixing.
• Involved in Functional level testing
• Environment: Java, JSP, Servlets, Web Service, DataPower, Blaze, DB2 and WebSphere server

May 2012 – Apr 2014 · 1 yr 11 mos

• Aetna - Guided Selling Solution
• As a tech lead/architect - devised development process & coding standards, implemented reference architecture that can be followed by teams, mentored junior team members, setup development infrastructure and environment, deisgned the system architecture etc.
• Implemented solution to develop service oriented architecture and exposing system functionality as service API for it to scale horizontally. Exposed some services across the enterprise as reusable assets.
• Designed the interface between the client and vendor with critical SSO outside domain.
• Designed 8 new Web Services comprising of over 40 operations in microservice style.
• Developed and designed the DataPower transformation layer for Security and Authentication.
• Developed various batch jobs for data load, extractions and reporting.
• Upgraded application to PCI standard for credit card data encryption and security.
• Ensuring that the quality of the delivered product is meeting the Client/Aetna quality and security standards
• Requirements Gathering & Co-ordination with clients for requirements with business users, onsite technical team.
• Involved in performance improvement of the module tp cater to the anticipated load and spikes.
• Resolving the issues related to the Appeals module which is raised in test environment.
• Build and release the product to Development, Test and PRE-UAT environment.

Feb 2009 – Apr 2012 · 3 yrs 2 mos

• Aetna - Aetna Individual Market
• Designed and developed critical portions of the framework to process business rules.
• Worked to enchnace the rate caluculation from the actuarial data which lead to 40% performance gain.
• Made changes to the core components to allows for integration with co branded partners like Costco Health for individual health insurance plans. This was done by resuing most of existing components.
• Worked to model the data objects to account for co-branded plans.
• Developed and designed the DataPower transformation layer for Security and Authentication.
• Analysis of Shell Scripts/programming as part of Incident, Change and Release managements.
• Developed various batch jobs for data extractions and reporting needed for daily/weekly reporting.
• Working extensively on incident reduction and Service Improvement Plans for the Application ensuring availability of the application 24*7
• Upgraded application to PCI standard for credit card data encryption and security.
• Ensuring that the quality of the delivered product is meeting the Client/Aetna quality and security standards
• Interaction with business team to validate and clarify requirements
• Requirements Gathering & Co-ordination with clients for requirements with business users, onsite technical team.
• Involved in performance improvement of the module.
• Resolving the issues related to the Appeals module which is raised in test environment.
• Build and release the product to Development, Test and PRE-UAT environment.

Oct 2007 – Jan 2009 · 1 yr 3 mos

• Project Description: PSA is one of the several intranet applications in AETNA. This project came as a major enhancement. The main objective of this application was to migrate the whole process from mainframe to J2EE web service thereby reducing the time spent in saving the applications.
• Role: I was involved in two different releases in this project. It gave me exposure to whole SDLC starting right from requirement analysis to warranty support.
• Preparing Unit Test Plan, Coding and Unit Testing of the functionality
• Integration testing of the application, Incorporated Change request from the client during acceptance testing