Sandeep Kumar

Ascension is one of the largest chain of hospitals in USA which is also into complete patient care management. at Ascension I worked with platform transformation teams to upgrade their web, native apps and infrastructure to latest stack.

Key Features that I directly contributed includes, but not limiting to

• Worked on transforming existing angular app to latest React JS and NextJS based application achieving more than 500% reduced load times, less than 0.5MB build sizes, fast rendering speeds, responsive UI.
• Implemented REST and GraphQL APIs using NodeJS for Patient care service and Java Spring Boot for Medications management Service by following FHIR( Faster HealthCare Interoperability Resources ) standards and integrated them into frontend applications.
• Created build pipelines and regularly monitored and updated build steps, webpack configurations to achieve reduced build times and integrated tools like Codacy and Github Co-pilot to improve code maintainability standards. Also regularly participated in PR reviews and pair programming.
• Created multiple contexts and integrated Redux store to maintain application data.

At PWC I worked with multiple clients from the supply chain management domain ( Blue Yonder and One Networks ) to build their official web Application/Tool.

• Worked on building multiple features in ReactJS like Order management, Alerts Monitor, Invoice Management, Shipment tracking screens. etc..., each as an individual MicroFrontend and Injected into a Master Application based on route based dynamic loading ( React ).
• Worked on building deployment pipelines, using Jenkins and Github Hooks, created build steps to include testing and code sanity checks in the build pipelines.
• Implemented REST API using NodeJS, Java SpringBoot based on the existing service stack.
• Implemented BFF (backend for Frontend) where API calls are intercepted and pre-processed in high computing capacity machines to avoid complex calculations on the web applications which helped in achieving best performance scores on low capacity client machines.

Implemented feature flagging to enable features based on client subscription models.

At Public's Sapient I worked with multiple clients on full stack development using React, Angular, NodeJS, Java Springboot, MongoDB, PostgreSQL.

Client - Blue Cross Blue Shield

• Implemented web application in angular for health insurance customer support and connected backend with REST APIs using observables and RxJS.
• Implemented state management using NgRx
• Created advanced forms supporting auto filling, editing pre filled forms.
• Implemented modular CSS to avoid CSS leakages using SASS and to support Global Styling and Themes.

Client - LLoyds Bank

• Worked on LLoyd banks official banking web application. Implemented multiple features like search, statement generation flow, profile management flow, payment flows in React.
• Integrated backend APIS for data exchange, Integrated Redux store for data management and Integrated Thunk for seamless state updates based on API responses.
• Implemented authentication flows following OAuth 2.0 standards.
• Worked on increasing unit test coverages and enforced 95% thresholds by including checks in CI/CD workflows.

Huddl is an AI based meetings product similar to Google Meet, Microsoft teams but integrated with smart AI features.

Key features I worked at huddl including but not limiting to.

Meeting Room - using React JS Implemented web UI for video/audio calls and with electron JS exported them run as Native apps on (Windows, MacOS, Linux)

Chatbot - Implemented chat bot using web sockets and connected to RabbitMQ server for exchanging messages and integrated this chatbot into existing react app.

Meeting Chat - Worked on Implemented meeting group chats UI using websockets, REST and GRaphQL API's.

Video/Audio Quality adaption - by monitoring browsers web-rtc stats implemented bandwidth stream quality switching.

Notifications - Implemented UIs for live notifications feature where seen, unseen and multiple other status should be maintained using continuous RabbitMQ connections using web sockets.

Meeting Highlights - Implemented UI to show key time frames over meetings where important topics are discussed using AI suggestions by creating custom media controls bar.

Application Search and Suggestions - Implemented application search feature and optimized using de-bouncing and populated suggestions as lists.