Available to hire
I’m Sai Ramya Kolli, a frontend developer with 10+ years of JavaScript experience. I build scalable, accessible, and high-performance user interfaces using React, Redux, TypeScript, and modern frontend toolchains. I thrive on turning complex ideas into clean, responsive web experiences and enjoy collaborating with designers, PMs, and backend engineers to deliver high-quality software.
I also focus on reusable components, design systems, and scalable architectures such as micro frontends. I’m comfortable leading teams, mentoring peers, and aligning technical decisions with business goals to ship reliable, maintainable products.
Skills
Experience Level
Work Experience
UI Developer at Walmart
June 1, 2024 - PresentSenior UI Developer responsible for creating SPA pages for the merchandising platform. Built scalable, high-performance interfaces using React with Hooks and functional components. Implemented robust state management with Redux Toolkit, middleware, and async workflows. Designed and delivered Micro Frontend architectures using Module Federation and Single-SPA for independent deployment and scalability. Developed reusable, responsive UI components with Material-UI and a shared design system; built component libraries used across multiple micro frontend applications. Integrated and optimized GraphQL APIs with Apollo Client, including queries, mutations, caching, and error handling. Translated Figma designs into pixel-perfect, accessible UI components, ensuring WCAG compliance and cross-browser compatibility. Wrote clean, modular code with JavaScript (ES6+) and TypeScript, and authored comprehensive unit/integration tests with Jest and React Testing Library to maintain high test coverage.
Senior UI Developer at Pfizer
February 1, 2024 - June 1, 2024Senior UI Developer delivering SPA pages for deployment platform. Built React-based interfaces using Hooks and Context API; migrated to micro frontend architecture with module federation. Implemented Redux for state management and connected to GraphQL backend via queries and mutations. Created reusable UI components, responsive layouts with Tailwind CSS, and server-side rendering with Next.js. Wrote tests with Jest and React Testing Library achieving high coverage. Collaborated with design teams via Figma mocks, and with product managers and backend engineers to ensure accessibility and cross-browser compatibility. Used tools like Jira, Artifactory, Jenkins; set up CI pipelines; deployed across environments on AWS/Azure. Improved code quality with ESLint and TypeScript. Created micro frontend apps and integrated them across different applications.
Lead UI React JS Developer at US Bank
November 1, 2020 - February 1, 2024Lead developer creating SPA pages; managed onshore/offshore teams. Developed single-page applications using React with Hooks and Context API. Built reusable UI components using internal shield components and styled them with SASS/Styled Components. Implemented Redux middleware for application state management; consumed GraphQL endpoints for backend data. Leveraged AEM data to display localized static content; created responsive pages using CSS grids. Integrated micro frontend apps using Module Federation; supported server-side rendering with Next.js. Achieved 100% test coverage with Jest; used Invision for mockups and component design. Deployed applications on AWS across multiple environments with Azure; automated deployments via Jenkins; collaborated with Artifactory; used Jira and GitLab for version control and CI/CD. Proficient with Babel, Webpack, NPM, Yarn; experienced with Jira, Jenkins.
Senior UI Developer at Tractor Supply
July 1, 2020 - November 1, 2020Designed and developed web components migrating from Angular to React; built with HTML/HTML5, CSS/CSS3, JSS, Material-UI; Redux-saga; Storybook; unit tests with Jest/Enzyme; used Sketch for mockups; containerized with Docker; ensured design integrity and quality control throughout project lifecycle. Conceived development using HTML/HTML5, CSS/CSS3, JSS, material-UI, React-vis, JavaScript, JSON, React JS, Bootstrap, Responsive design, Node.js, NPM, Sketch, and Docker.
Senior Frontend Developer at Dealer Socket
April 1, 2018 - June 1, 2020Involved with all phases of SDLC; coordinated with Interface Design Architects for accessibility. Created SPA using React JS; developed features using HTML5, CSS3, ES6, Webpack, JavaScript, React and Redux; CSS3 with JSS; middleware with Redux-Saga; data tables with DevExpress; reusable components with Material-UI; charts using react-vis. Built with Storybook for design systems; performed unit testing with Jest and Enzyme; followed W3C standards for cross-browser compatibility.
Senior Software Engineer at OpenText Corporation
January 1, 2014 - August 1, 2016Involved with all phases of SDLC; analyzed requirements; developed interactive web pages using HTML5/HTML, XHTML, and CSS3/CSS. Converted layouts from designers into HTML/CSS themes; performed validation, debugging, and testing. Worked with Java, Java EE, Angular, jQuery, Selenium, Jira, Solr, Tomcat; Node, NPM, Grunt; SOAP/REST services; Jersey Client; and related technologies.
Associate Software Engineer at OpenText Corporation
January 1, 2013 - December 1, 2013Coordinated with business analysts to understand their models and goals; built client-facing web pages utilizing jQuery plugins for Drag/Drop, AJAX, JSON, and Bootstrap; customized portlets with bootstrap themes; ensured cross-browser compatibility and quality UI. Worked with CSS/HTML to present data; developed charts and visuals.
Education
Bachelor of Technology in Computer Science at Vignan University, India
January 11, 2030 - January 1, 2013Qualifications
Industry Experience
Software & Internet, Retail, Financial Services, Healthcare, Professional Services
Skills
Experience Level
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