Karthik D

14 years of professional experience in developing scalable, high-performance web applications using modern frontend technologies including ReactJS, Redux, Typescript, JavaScript, and related UI ecosystems. Hands-on experience designing reusable UI architectures, modern state-management patterns (Redux Toolkit, Redux-Saga, Redux-Thunk), and component-driven development. Strong experience in frontend authentication frameworks, including MSAL, token-based authentication, and secure UI workflows.

Adept in leading cross-functional engineering teams, conducting code reviews, defining UI best practices, and ensuring architectural alignment across modules. Skilled in version control using GIT/SVN, and well-versed with browser debugging tools including Chrome Inspector, React Developer Tool, Lighthouse. Deep understanding of Agile methodologies, sprint planning, story grooming, effort estimation, and end-to-end UI delivery.

Effective communicator with strong problem-solving skills, technical leadership capabilities, and the ability to collaborate with BA, Product Owners, and backend teams. Experienced in implementing unit testing, enforcing code quality standards, and ensuring secure, production-ready UI.

Technical Architect - Hexaware - Chennai

(2025-01)

Project: IRNextGen

• Lead the UI architecture and end-to-end development of the IRNextGen platform using ReactJS, Redux Toolkit, Redux-Saga, Typescript, React Router DOM, Bootstrap, and MSAL for secure authentication.
• Architect, design, and implement scalable front-end modules, ensuring high performance, reusability, and clean state management.
• Integrate MSAL library to enable secure login and token-based authentication across the application.
• Implement advanced UI functionalities including image capture and upload using Navigator API, image editing features (crop/rotate) using react-image-crop, and OCR-based auto-address extraction using Tesseract.js.
• Develop interactive dashboards with Recharts to visualize business metrics through bar and pie charts.
• Establish unit testing standards and achieve 80%+ test coverage using Vitest, ensuring high-quality and stable UI modules.
• Periodically perform Checkmarx scans, review vulnerabilities, and implement VAPT fixes to maintain security compliance.
• Conduct technical analysis of user stories, clarify requirements, identify dependencies, and translate them into actionable development tasks.
• Review code across the team, provide technical guidance, enforce coding standards, and drive best engineering practices.
• Maintained the code using source control using GIT.

Senior Professional I-Engineer - Capgemini - Chennai

(2020-05 - 2025-01)

Project: Intelsat

• Developed a large-scale SPA using ReactJS, Redux-Thunk, JavaScript, HTML5, CSS3, and RESTful APIs.
• Built reusable React components and Higher-Order Components (HOCs) to standardize UI architecture.
• Implemented React Router for dynamic routing and a customized filter system for complex resource discovery.
• Integrated Redux & Redux-Thunk for state management and async flows.
• Used Fetch API for real-time GET/POST operations and integrated backend database queries.
• Implemented responsive UI using Bootstrap Grid and CSS media queries.
• Participated in the full SDLC including development, peer reviews, and functional testing.
• Maintained source code via GIT.

Senior Software Engineer - Ziffity Solutions - Chennai

(2018-09 - 2020-05)

Project: Expressmed

• Built SPA using ReactJS, Redux-Saga, JavaScript, HTML5, CSS3, and REST services.
• Implemented Redux-Saga for asynchronous event handling.
• Developed reusable UI modules and dynamic routing using React Router.
• Integrated back-end services using HTTPClient and GET/POST operations.
• Optimized CSS using SASS and ensured responsive UI using Bootstrap.
• Maintained cloud source control with SVN.

Senior Software Engineer - SRM Technologies - Chennai

(2015-08 - 2018-09)

Project: Nissan Connect

• Developed web modules using ReactJS, Redux-Thunk, JavaScript, HTML5, CSS3, and REST APIs.
• Implemented role-based components and SPA workflows.
• Built responsive UI screens using Bootstrap and CSS media queries.
• Integrated backend via HTTPClient and database-driven JSON contracts.
• Maintained code through GIT and followed Agile processes.

Software Engineer - TechAffinity - Chennai

(2012-05 - 2015-08)

• Developed modules for Microflex TaxTools using CodeIgniter, JavaScript, jQuery, HTML5, CSS3, and Bootstrap.
• Optimized JS and CSS using MinifyJS for faster performance.
• Built responsive interfaces using Bootstrap Grid and media queries.
• Participated in complete SDLC, including coding, code reviews, and testing.
• Used GIT for version control.

B.E - CSE - Jayaram College of Engineering and Technology (2011)