Vamsheek Samula

The Retail ESL project, based on microservice architecture, enables the display of product information, including pricing, discounts, and shipping, on electronic shelf labels in real time. It aggregates product information from various internal microservices, filters and transforms it, and pushes relevant product info to Solum for subsequent display on ESLs. It also facilitates assigning and unassigning of products to ESLs through the associate home app. It supports updating pricing, promotions, and inventory data in real time via an event-driven architecture.

The Retail ESL application benefited a couple of million dollars in savings to Wayfair, through automated updates to ESLs and thus avoiding the time-consuming, error-prone, and costly manual process involved with sticker-based shelf labels.

The Trai enhancements microservice, developed by me, enhances the BMS application by providing a powerful analytics service that enables operators to gain detailed insights into their packages, PIs, and device subscriptions.
The BMS application provides a conditional access service to operators, who, in turn, deliver the EMMs and ECMs they receive from BMS to end customer devices. With the Marlin SDK at the core, the EMMs and ECMs are generated per operator and per device based on the subscription and packages a device is bound to.

The SSO UM application is part of the organization's IAM solution. I was involved in the development and enhancements of the SSO UM application, which, at its core, used a microservices architecture.

The SSO UM application lets CEVA clients, customers, and 3rd parties create a single sign-on account through its management portal. It achieves this by caching the customer's sign-up details in a local database and then sending the customer an activation link via email. The user details are replicated to the SSO after the user accesses the activation link. Gluu3/4 environment is used for SSO. The application also allows users and CEVA admins to control users' accounts subsequently.

The Golight Streaming processor is a Kafka-based producer application that facilitates store pricing adjustments by feeding price threshold values into the BlueYonder Pricer application. The Golight processor consumes price feeds from files uploaded into Amazon S3 buckets. It processes, validates, and transforms the input feeds by applying business rules and publishes valid and transformed feeds into kafka topic to which BY Pricer subscribes.

IPS is an integration service that bridges the APAL/APEX consumer end applications with the BY Pricer application. The value this service adds is enriching the B2B customer's information using its Hazelcast cache store and subsequently using that information to retrieve pricing information from Pricer.