Sathish Sundar Vajjiram

Project 1 - Entitlement Management System - EMS v4.0:

Upgraded the Software system to next version by removing the dependency of the third party vendor called Gemalto and introducing some Contract changes to have Optimized designed with sufficient attributes to improve the systems performance, Robustness, scalability and Availability.

Technology/Skill: Serverless architecture using Lambda,API manager, API gateway, DynamoDB,SSM

Project 2 - Customer 360(ETL):

Extract the Data from sources like Account profile, Entitlement Management system, Product Life cycle management, Product Usage and transform them to the defined schema and load them in to DOMO that helps to increase the revenue by upselling the product, to provide information clarity, to have brand awareness and to have a customer experience

.

Technology/Skill: Lambda, DynamoDB, Dynamo Streaming, Kinesis, Athena, S3, DOMO.

Roles and Responsibilities:

• Designs, modifies, develops, writes and implements software application and assess alternative design models and processing methods.
• Lead the rapid development of consumer facing prototypes to identify technical options and inform architectural approaches
• Provide technical leadership across projects.
• Implements critical performance metrics and prepares reports indicating team effectiveness.
• Have Knowledge in Agile Methodologies such as Scrum.
• Managing development of two fully functional sprint teams.
• Implemented a Purchase order API to integrate with Oracle CRM for Partners, Distributors and Resellers.
• Working across technical and business teams in order to understand requirements and implement them accordingly.
• Providing technical leadership and mentoring on the application of new technologies and business system development methodologies.
• Evaluating various architectural solutions and implementations and Aligns operational plans with business objectives.
• Demonstrating in-depth knowledge of how Technology Infrastructure integrates within the overall technology function to achieve business goals
• Have an ability to manage teams, resolve architectural problems, identify technical solutions to business problems
• Being the technical thought leader of the team, provide necessary guidance and mentorship to team members whenever required
• Evolved as subject matter expert and Go-To person for the business domain.
• Champion best software engineering practices such as continuous integration, delivery, and deployment.
• Designed and maintained all production and development environments, greatly improving application uptime for all systems.
• Resolved performance issues for customers that caused site outages every night for 6+ months by identifying inefficient cache settings and code.
• Resolved database performance issues within commerce and business intelligence products by recommending appropriate schema changes.
• Cross-trained existing employees to maximize team agility and performance.

Project 1 - Entitlement Management System - EMS v3.0:

Upgraded the Software system to next version by introducing some Contract changes to have the best practices.

Technology/skills: Microservices, Core Java, RXJava, Dagger, Vertx, Gradle, Jenkins, Docker, AWS EC2, ALB, SQS, SNS.

Project 2 - Account Profile Service(CDH): Customer Data Hub is a centralized Account master for the customers who buy products in Trimble under various divisions that holds the basic profile details, source system from which the Data is being pushed and the Roles to authorize the data.

Technology/skills: Core Java, Sprint Boot, Gradle, Jenkins, , AWS EC2, ALB, SNS, Json, DynamoDB.

Roles and Responsibilities:

• Translated customer and system requirements into robust software design with test-driven approach.
• Developed code using Java and other programming languages to support digital repository frameworks and integrate systems.
• Facilitating Daily Standup, Scrum Review, and Retrospective meeting and managing Jira board.
• Lead a team of 8 members.
• Was part of all the processes of SDLC like Requirement gathering, project analysis, design, development, deployment and support of web applications.
• Requirement Gathering from business stakeholders, preparing High Level & Low-Level Design.
• A better understanding of serverless, scalability, parallel processing, multi-tenant, and infra.
• Guide the team for any technical glitches, low-level class design.
• Manage the delivery of Middleware and AWS Infra.
• Developed Restful Microservices using VertX, RXJava, Dagger, Gradle, Jenkins, Bitbucket, AWS ALB, EC2, DynamoDB, SNS, Cloudwatch, S3, Dynamo streams, Step function, Lambda, etc.

Project 1 - Entitlement Management System - EMS v1.0 and v2.0:

A single centralized Entitlement Management System (EMS) acts as a bridge between all Trimble Business, Engineering, Marketing, Support, Sales & Financial systems. An entitlement defines the rights of an end-user to use a software package or service. An entitlement is an order for products and product suites that specifies the product details, who can use these products, and the duration for which the order is valid. The end-user can activate the entitlement, which generates a subscription to use the software according to the defined terms which is called as Subscription management. The products and product suites associated with entitlement are identified by unique product keys.

Entitlement: An Entitlement is a record of a sales order and the right to use, access or consume an application or resource, typically for a fee. This typically consists of a license or set of licenses. Entitlements do not necessarily require a monetary transaction, free trials are also considered an entitlement.

Subscription: An individual seat of an entitlement that is activated against a user or device. The subscription dictates who has access, what features they have access to, and for how long. An entitlement can consist of one subscription or, as often is the case, multiple subscription.

Product: A SKU with a Quantity.

Products used - WSO2 Carbon is an SOA middleware platform from WSO2. Carbon encapsulates major SOA functionality such as data services, business process management, ESB routing/transformation, rules, security, throttling, caching, logging and monitoring. WSO2 products such as Application Server, Enterprise Service Bus, and Business Process Server are built on top of the WSO2 Carbon middleware platform.

Technology/Skills: WSO2 ESB, API Manager, XML, XSLT, XPATH, Core Java , Mediators, Connectors, SQS, Restful API, JSON.

Roles and Responsibilities

• As an individual contributor, Actively involved in all aspects of SDLC like project analysis, design, development, Testing and support of EMS system.
• Independently Implemented the Wso2 ESB-based Restful web services and published them in API Manager.
• Evaluated project requirements and specifications and developed software applications that surpassed client expectations.
• Participated in design sessions with clients to ascertain all project specifications for applications, databases and systems.

project 1 - CareMore Service

Caremore Web Services – It is a service for caremore online system to retrieve or to update the details of Caremore member, provider, billing, utilization review, claim etc. It uses Enterprise Service Bus(ESB) which is accessible by the clients through SOAP. WSO2 service acts as a service to get the request in SOAP format and Once it gets the request it will take the incoming message to ESB proxy and the ESB proxy will validate, transform the request using XSLT, log ,route, make fault if needed and it will in turn invoke DSS(Data Service server) which is again a service exposed by the WSO2 Data Service server to fetch the data from the Backend Facets. And finally ESB will again send back the fetched data to the client.

Products used - WSO2 Carbon is an SOA middleware platform from WSO2. Carbon encapsulates major SOA functionality such as data services, business process management, ESB routing/transformation, rules, security, throttling, caching, logging and monitoring. WSO2 products such as Application Server, Enterprise Service Bus, and Business Process Server are built on top of the WSO2 Carbon middleware platform.

Roles and Responsibilities:

• Directed software design and development across multifaceted team to meet client needs for functionality, timeline and performance.
• As an individual contributor, Actively involved in all aspects of SDLC like project analysis, design, development, and support of web applications.
• Excellent teamwork skills but also being able to work independently Implemented the Wso2 ESB-based Restful web services and published them in the same in API.
• Resolved critical production issues on time and provided the best solutions to the issues.
• Peer Review of Enhancements/Defect Fixes of my colleagues.

project 2- CareMore Service Business Integration (SBI)

WellPoint's subsidiary, CareMore is a Medicare healthcare company based in Cerritos, California. CareMore provides the Medicare Advantage plan.

SBI web service – It is a common interface for all WellPoint’s online systems to retrieve or update the facet details. The services are grouped by claims, members, group or subgroup, provider, billing and utilization review. It uses EBS request XML as input and sends response in the form of EBSResponse XML which is accessible to all SBI Clients irrespective of the format they send. SBI acts as a Component to get the request from the Online Application in the XML format. It validates the Security token in the XML for the appropriate interface to pick to service the request. SBI will invoke the facets tables with the help of hibernate properties and Stored Procedure to retrieve the data from facets backend.

Technicnology/Skills - Spring, J2EE,JAXB, XML, Hibernate.

Roles and Responsibilities:

• Identified causes of issues within applications and determined which modifications needed to be made.
• Peer Review of Enhancements/Defect Fixes of my colleagues.
• Updated documentation with project deviations to capture changes.
• Resolved malfunctions with systems and programs through troubleshooting.