Web Developer Front-End

Teegulla Shashi kumar

Mobile: +1-754-***-****,

Email: ***********.********@*****.***

Professional Summary:

•Highly skilled front-end developer with 11+ years of experience crafting intuitive UI applications and web applications using HTML5, CSS3/SCSS, JavaScript, ReactJS, Redux, React Hooks, PHP and CodeIgniter.

•Expertise in utilizing React.js framework to develop dynamic and interactive user interfaces.

•Good explore on Next JS developing responsive web UI using Next JS.

•Proficient in developing web applications using JavaScript, HTML, CSS, with hands-on experience in IDE tools like Visual Studio Code, Atom, and Sublime Text for efficient coding and debugging.

•Worked extensively with ECMAScript 6, employing Babel, webpack, and NPM for efficient building and bundling of JSX and ES2015 (ES6)applications.

•Expertise in handling cross-browser issues.

•Extensive knowledge in using JavaScript frameworks such as JQueryfor DOM manipulations.

•Extensive Knowledge in developing Single-Page Applications (SPAs) using ReactJS.

•Extensive knowledge as a web developer with a strong background working on open source technologies, including PHP, HTML, CSS, MySQL, JavaScript.

•Experience consuming REST APIs serve that JSON.

•Good Understanding of Document Object Model (DOM) and DOM Functions.

•Experience in Redux-thunk, knowledge on Redux-saga.

•Experience in Agile software methodology with Jira.

•Experience with Firebug, Web Developer Tools for Mozilla and IE Developer Toolbar for Internet Explorer, Using Charles proxy for mapping local files with server.

•Good exposure in Angular and able to work with angular.

•Experience in working with CSS frameworks Bootstrap and Antd.

•Proficient in designing, implementing, and testing in a Microservice oriented architecture and has implemented the REST-based Microservices using Spring Boot, and Spring Data with Java Persistence API.

•Experienced in writing Junit test cases with Mockito, resolved bugs, and Eclipse's debugging tool, Java Message Services like Apache Kafka while implementing microservices.

•Expertise in REST API, and SOAP web services to integrate between Application to Application with front-end development and back-end systems.

•Software Development methodologies like Agile, Test-Driven Development, and Traditional Waterfall.

•Experience with multiple relational databases like SQL Server, MySQL, PostgreSQL, and NoSQL databases like Mongo DB, and Cassandra.

•Experience in developing application using GraphQL.

•Hands on data fetching, caching, and error handling for GraphQL queries and mutations

•Designed and built reusable React components with strong typing using TypeScript, enhancing code maintainability and reducing runtime errors.

•Integrated RESTful APIs and/or GraphQL endpoints with React applications, ensuring data consistency and type safety through TypeScript interfaces

•Experience in developing applications in Java using various IDEs like IntelliJ, RAD, Eclipse, and NetBeans and other tools like ServiceNow.

•Experience in PHP and CodeIgniterfor we development.

•Experience in Restful API development using PHP.

•Demonstrated analytical, investigative and problem solving capabilities.

•Strong experience in writing and updating the technical documents on regular with the changes made to the existing environment.

•Excellent interpersonal abilities, communication skills, time management, and Team skills to work hard to attain project deadlines under stressful environments.

•Highly Curious about new front-end development technologies and adept at promptly and thoroughly mastering them with a keen awareness of new industry developments and the evolution of programming solutions.

Education:

Bachelors:Osmania University Hyderabad, Bachelor of Science(2005)

Masters:Jawaharlal Nehru Technological University Hyderabad, MCA(2008-2009).

Key Skills:

•JavaScript Frameworks: React, React Native, Next JS, AngularJS, jQuery, NodeJs

•Javascript libraries: Redux, Redux Toolkit, React Routers, Typescript, Yup, Babel

•Web Technologies: HTML5, CSS/SCSS, Javascript, AJAX, JSON

•CSS Frameworks : Bootstrap, Material UI, Antd, AG-Grid

•Development Tools: Visual Studio Code, Atom, Dreamweaver CS5, IntellIJ

•Databases:MySql, SQL Server, GraphQL

•Web Services: REST

•Version Control: Git, Bit bucket

•Project Management: Jira, Agile methodology

•Documentation: Technical writing

•Collaboration: Strong interpersonal and communication skills

WORK EXPERIENCE

Momenta (3i Infotech) April 2025– Till date

Role: Front-end Developer + ReactJS

Responsibilities:

•Design, develop and test HTML5, CSS3, Bootstrap, JavaScript and React.JS, Next JS that meets accessibility and web browser standards for website.

•Designed Css templates for use in all pages on the website working with CSS Background, positioning, text, border,margin, padding, and table.

•Proficiency in using TypeScript to ensure type-safety and create complex and scalable applications with fewer bugs and better maintainability.

•Applied optimization techniques to reduce page size and load times to enhance user experience using sprites.

•Developed user interface by using the React JS for the application.

•Implemented react ]S code to handle cross browser compatibility issues.

•Used React-Router to turn application into Single Page Application

•Used ReactHooks for code reusability and modularity.

•Worked on using ReactJS components, Forms, Events, Keys, Router, redux concept.

•Worked on responsive design and developed a singleresponsive website that could be served to desktop,Tablets and mobile users using React.js.

•Utilized Nodejs and React for building scalable Single Page web applications.

•Maintained states in the stores and dispatched the actions using redux.

•Collaborated with the architecture group to define the technical platform, resulting in a notable 25% increase in system reliability.

•Worked with the Back-End team to display data using the Custom Components, library Components,and Redux.

•Added Dynamic Functionality by creating and dispatching Action Creators that deployed Actions.

•Created and used Reducers that received said Actions to modify the Store State Tree.

•Used redux, reduxtoolkit to polish the data and for single directional flow.

•Used Object Oriented Programming concepts to develop UI components that could be reused across the Web Application.

•Extensively used Git for version controlling and regularly pushed the code to GitHub.

•Implemented JEST unit tests to validate the functionality and reliability of JavaScript code, ensuring the robustness of the developed features.

Environment: HTML5, CSS3, JavaScript, JSON, Reactjs, Next JS, Redux toolkit,ContextAPI, RestAPI, Bootstrap, Jira, Jest, Git, AG-Grid, Visual studio code, Git, Bit Bucket, Figma.

Famvault (Altimetrik) April 2023– March 2025

Role: Front-end Developer + ReactJS

Responsibilities:

•Design, develop and test HTML5, CSS3, Bootstrap, JavaScript and React.JS that meets accessibility and web browser standards for website.

•Designed Css templates for use in all pages on the website working with CSS Background, positioning, text, border,margin, padding, and table.

•Applied optimization techniques to reduce page size and load times to enhance user experience using sprites.

•Developed user interface by using the React JS for the application.

•Implemented react ]S code to handle cross browser compatibility issues.

•Used React-Router to turn application into Single Page Application

•Used ReactHooks for code reusability and modularity.

•Worked on using ReactJS components, Forms, Events, Keys, Router, redux concept.

•Worked on responsive design and developed a singleresponsive website that could be served to desktop,Tablets and mobile users using React.js.

•Utilized Nodejs and React for building scalable Single Page web applications.

•Maintained states in the stores and dispatched the actions using redux.

•Worked with the Back-End team to display data using the Custom Components, library Components,and Redux.

•Used Middleware, Redux-Promise in application to retrieve data from Back-End to perform RESTFUL services.

•Added Dynamic Functionality by creating and dispatching Action Creators that deployed Actions.

•Created and used Reducers that received said Actions to modify the Store State Tree.

•Worked to optimize existing API calls to create efficiencies by deprecating unneeded API calls.

•Called the Restful web services calls for POST, PUT, DELETE and GET methods.

•Used redux, reduxtoolkit to polish the data and for single directional flow.

•Used Object Oriented Programming concepts to develop UI components that could be reused across the Web Application.

•Extensively used Git for version controlling and regularly pushed the code to GitHub.

•Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everyday basis.

•Worked with JEST unit test framework to write unit tests for JavaScript code.

Environment: HTML5, CSS3, JavaScript, JSON, Reactjs, Redux toolkit,ContextAPI, RestAPI, Bootstrap, Jira, Jest, Git, AG-Grid, Visual studio code, Git, Bit Bucket, Figma.

Spicejet (Valuelabs, Hyderabad) Aug 2020-Mar 2023

Role: Front-end Developer + ReactJS

Responsibilities:

•Designed, developed, and rigorously tested HTML5, CSS3, Bootstrap, JavaScript, and React.JS components to ensure compliance with accessibility standards and seamless integration with diverse web browsers.

•Proficiency in usingTypeScript to ensure type-safety and create complex and scalable applications with fewer bugs and better maintainability.

•Formulated CSS templates to uniformly style all website pages, demonstrating expertise in CSS Background, positioning, text, border, margin, padding, and table configurations, while leveraging the Centralized component MDS for enhanced efficiency.

•Spearheaded the creation of interactive UI pages through React JS. Engineered stable React components and standalone functions, designed for seamless integration into future pages.

•Used ReactHooks for code reusability and modularity.

•Implemented diverse front-end screens using React.js, leveraging predefined components from NPM and the Redux library. Constructed reusable centralized components deployed across multiple applications within the organization.

•Collaborated with backend engineers to optimize API calls, eliminating inefficiencies by deprecating unnecessary calls and enhancing overall system performance.

•Executed Restful web service calls for POST, PUT, DELETE, and GET methods, demonstrating proficiency in handling various HTTP methods.

•Applied Object-Oriented Programming concepts to develop UI components, ensuring their reusability across the entire web application.

•Utilized Git for version control, maintaining a consistent and organized codebase, and regularly pushed updates to GitHub.

•Employed JIRA as the primary bug tracking system, diligently documenting and addressing bugs and issues on a daily basis.

•Implemented JEST unit tests to validate the functionality and reliability of JavaScript code, ensuring the robustness of the developed features.

•Designed and developed Microservices business components using SpringBoot.

•Worked on developing the REST-based web services using the Spring web services module.

•Developed server-side application to interact with database using Spring Boot and Hibernate.

•Worked on developing and modifying the application program by Unit testing using different test scenarios and test cases using JUnit and Mockito.

•Designed and implemented GraphQL schemas to define types, queries, mutations, and subscriptions.

•Optimized GraphQL queries to reduce overhead, improve performance, and enhance data fetching.

•Wrote resolvers to handle data fetching, caching, and error handling for GraphQL queries and mutations.

•Integrated GraphQL with frontend frameworks React Js and backend services REST APIs.

•Modeled data structures and relationships using GraphQL schema definition language (SDL).

•Implemented robust error handling mechanisms for GraphQL APIs, including error types and messages.

•Implemented security best practices for GraphQL APIs, including authentication, authorization, and rate limiting.

•Wrote unit tests and integration tests for GraphQL APIs using testing frameworks (e.g., Jest).

•Monitored and optimized GraphQL API performance using tools (e.g., Apollo Studio).

Environment:ReactJS, React Native, Redux, HTML5, CSS3, JavaScript, JSON, Java, Sprint boot, RESTful web service, Microservices, NodeJS, Visual Studio code, IntelliJ Idea, Jira, Git.

UnitedHealthCare Inc., (Wipro limited, Hyderabad) Jun 2019-Jul 2020

Role: Frontend -end Developer+ ReactJS

Responsibilities:

•React components forusing HTML5, CSS, ReactJS with Redux.

•Developing new user-facing features using React.js.

•Used ReactHooks for code reusability and modularity.

•Building reusable components and front-end libraries for future use.

•Translating designs and wireframes into high-quality code.

•Used Gulp with WebPack for Automatic Task run and bundle the assets.

•Developed and consumed higher-order components for analytics and modularity.

•Working with ECMA Script 6 features. For the build of JSX and ES2015(ES6) used Babel, webpack, NPM.

•Maintained states in the stores and dispatched the actions using redux.

•Worked with the Jest unit test framework to write unit tests for JavaScript code.

•Coordinated with the development team, QA team, Scrum Master, Product Owner, and Senior management to refine requirements and address issues using Jira.

Environment:ReactJS, React Native, Redux, HTML5, CSS3, JavaScript, JSON, Visual studio code, Jira, Bit Bucket.

Hookedup (IT service India,Esensepvt ltd) Jan 2017 to Jan2019

Role: PHP + React Developer

Responsibilities:

•Build and develop application using ReactJS, HTML, CSS/SCSS, JavaScript.

•Involved in web designing using HTML5, CSS3, JavaScript, JSON.

•DevelopedUI components followed by wireframes, screen mock-ups, and interface design specifications.

•Responsible for all UT to ensure fewer bugs before the build is released to the test team.

•Designed Frontend with in object-oriented JavaScript framework like ReactJs, Antd.

•Worked on creating a responsive website for smart devices using Responsive design and media queries.

•Created fetch request to REST service with the only use of the GET method for retrieval.

•Coordinate with QA for testing, Production releases, Application deployment, and integration.

•Involved in Production Support and minor enhancements as per application requirements.

•Involved in develop code using PHP Codeigniter.

•Implemented frontend validations using JavaScript and libraries

•Involved in add php libraries in codeigniter.

•Test functional path flow of website.

Environment: HTML5, CSS3, JavaScript, JSON, Visual Studio Code,Antd, ReactJS, Redux, PHP, Codeigniter, Mysql, Visual studio code, Sqlyog, Jira, Git

RepherralsSofwareSolutions(Hyderabad) Jun 2012 to May 2016

Role: PHP Developer

Responsibilities:

•Involved in develop code using PHP Codeigniter.

•Involved in add php libraries in codeigniter.

•Involved in developing UI pages using HTML,JSON,JavaScript, jQuery, Ajax.

•Integrated the PHP code (API) in UI Pages.

•Used jQuery core library functions for the logical implementation part at the client side for all the applications.

•Extensively used jQuery UI for screen design and development.

•Involved in Writing jQuery based Ajax Requests using jQuery.

•Used jQuery Events to manipulate the elements depends on the user interactions (like .ready, hover, bind, click, .key press •Used jQuery to traverse through a DOM tree and manipulated the nodes in the tree.

Environment: HTML4, CSS3, JavaScript, JQuery, Dreamweaver CS5, AJAX, JSON, MySql, phpMyAdmin.

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