Vamsi Krishna Adusumalli
Austin,TX
Summary
Full-Stack Engineer with 7+ years of experience building, scaling, and delivering web and mobile applications for enterprise clients including T-Mobile and Apple. Proven ability to translate business requirements and design mockups into clean,performant, accessible (WCAG 2.1), and responsive user interfaces. Strong in both frontend and backend development —from creating complex UIs with advanced state management to designing APIs, integrating databases, implementing caching,and deploying to cloud environments. Experienced in Agile environments, CI/CD pipelines, automated testing, code reviews,and collaborating cross-functionally with designers, PMs, and QA to consistently deliver features on time. Focused on scalable architecture, clean code practices, reliability, observability, and maintaining high engineering standards.
Overview
7
7
years of professional experience
Work History
Senior Software Engineer - FrontEnd (Contract)
T-Mobile
10.2024 - Current
- Built a full-stack application using React JS, React Hooks, and Material UI for a clean and responsive frontend.
- Built key pages using Next JS with Server-Side Rendering (SSR) and Static Site Generation (SSG) to improve initial load time, SEO, and performance for data-heavy dashboards.
- Used Next JS App Router, API routes, and dynamic rendering to mix SSR and Client-Side Rendering (CSR) based on page needs, giving fast first paint and interactive experience after hydration.
- Integrated Power BI reports directly into React components to show real-time data and dashboards.
- Integrated Glean AI API into Node.js/Express backend with secure proxy endpoints and authentication to enable AI-powered search, auto-generated summaries, and aggregated feedback retrieval across enterprise documents and customer data.
- Built AI-driven frontend experience in React by consuming Glean AI API to display real-time generated summaries, pull aggregated user feedback, and surface intelligent insights — significantly improving internal decision-making and tool usability.
- Created RESTful APIs using Node JS and Express with middleware for authentication, validation, and logging.
- Connected backend to MongoDB using Mongoose and wrote efficient queries and schemas.
- Used Redis caching to speed up APIs and reduce database load — improved response time by over 60%.
- Improved page performance with code splitting, lazy loading, and React best practices — reached 95+ Lighthouse scores.
- Handled deployments on Azure App Services, used Azure Storage and App Insights for logs and monitoring.
- Used GitLab for version control, CI/CD pipelines, and code reviews.
- Worked closely with product managers, designers, and team members in daily Agile meetings to deliver features on time.
UI Developer (Contract)
Apple
04.2019 - 10.2024
- Built a major React application from scratch and took it to production, including integration with react-data-grid for large, interactive tables.
- Led React 15 to React 16/18 migration across large codebase, converting all class components to functional components with Hooks — reduced production bundle size by 15-20%, improved rendering performance, and unlocked compatibility with modern NPM libraries and third-party packages.
- Built complex forms and state management using Redux, Redux-Form, and React Hooks.
- Integrated multiple third-party libraries including DRM-protected video players and real-time media components.
- Embedded Images, videos into React, using WebSockets for real-time live renditions and dynamic playback, delivering smooth high-quality media experiences across web.
- Created reusable web components with Stencil JS, published them to internal NPM, and enabled use in React and Angular apps across teams.
- Made sure all features followed WCAG 2.1 accessibility standards — proper labels, keyboard support, and screen reader testing.
- Updated code to use modern JavaScript and added TypeScript step by step to reduce bugs.
- Wrote unit and integration tests using Jest and Enzyme with 85%+ code coverage.
- Worked directly with designers, product owners, backend engineers, and QA to clarify requirements and deliver correct features on schedule.
- Set up and managed Jenkins + Ansible pipelines for builds and deployments.
- Did regular code reviews on GitHub and helped improve code quality and best practices.
Front-End Developer (Contract)
NRG Energy
08.2018 - 04.2019
- Worked as the only UI engineer supporting multiple brands — built new features and fixed issues in production apps.
- Built a React application for Google Nest device control inside customer portals.
- Added Google Intents so users could quickly call, email, or message with one tap.
- Created interactive charts and dashboards using Chart JS for energy usage data.
- Built fast-loading pages using JSPs connected to Java backend for server-side rendering.
- Added Adobe Analytics tracking to JSP and React pages to monitor user behavior and conversions.
- Built forms with Redux-Form and added both Sync and Asynchronous validation to prevent bad data.
- Joined daily stand-ups and worked with QA, backend, business analysts, and customers to fix issues fast.
- Delivered features and fixes on time during sprints and kept code quality high with GitHub reviews.
- Updated older code with modern JavaScript, better structure, and responsive design using Bootstrap.
Education
Masters - Computer Science
Texas A&M University
Kingsville12.2018
Skills
- React JS, React Native, Next JS (SSR, SSG, App Router), Redux / Redux Toolkit, React Hooks, TypeScript, JavaScript (ES6), Node JS, Express JS, Fastify, Next JS API Routes, Next Auth, RESTful APIs, HTML5, CSS3, SASS/SCSS, Material UI, Stencil JS, React Data Grid, Chart JS, Power BI Embedding, Glean AI API
- MongoDB (Mongoose), NoSQL, Redis
Web Technologies:
Databases & Caching:
- Azure (App Services, Functions, Storage, App Insights), GitLab, GitHub, Jenkins, Ansible, Webpack, NPM/YARN
- Jest, Enzyme, React Testing Library, WCAG 21 Accessibility, Lighthouse Optimization, Swagger
Cloud & DevOps:
Testing & Quality:
Timeline
Senior Software Engineer - FrontEnd (Contract)
T-Mobile
10.2024 - Current
UI Developer (Contract)
Apple
04.2019 - 10.2024
Front-End Developer (Contract)
NRG Energy
08.2018 - 04.2019
Masters - Computer Science
Texas A&M University