KRISHNANUNNI K A

Dynamic Senior Frontend Developer at PIT Solutions Ltd, adept in React and TypeScript. Spearheaded the creation of a custom UI component library, enhancing development speed and consistency. Proven mentor with strong communication skills, driving best practices and architectural improvements for high-quality, responsive user interfaces.

HRMS Application (Product)
React, Vite, TypeScript, MUI, .NET

A cloud-hosted multi-tenant HRMS SaaS platform enabling organizations to manage employee lifecycle operations and configurable HR policies.

• Developed employee configuration and leave management modules supporting organization-level customization within a multi-tenant architecture.
• Built dynamic enterprise forms using React Hook Form with complex validation, conditional logic, and field arrays.
• Refactored complex UI modules into reusable components, improving maintainability and reducing cognitive complexity.
• Ensured type-safe frontend architecture using strongly typed TypeScript models and API integrations.
• Built scalable UI modules supporting multi-tenant HR policy configuration across multiple organizations.

Service Desk Application
React, MUI, .NET | 2 years

A web platform enabling employees to raise internal service requests (hardware, software, access), manage approval workflows, and receive system notifications.

• Led UI development for the platform, implementing scalable frontend architecture using React and Material UI.
• Designed and developed a custom MUI-based UI component library, hosted on DevOps, enabling project-wide reuse and consistent UI standards.
• Built reusable and scalable components to streamline development and reduce duplication across modules.
• Mentored junior developers on React best practices, UI standards, and component-driven development.

Client Mobile Application for Police Department
React Native, .NET | 1 year

A mobile application enabling citizens to raise service requests, track application statuses, and communicate with the police department through a centralized digital platform.

• Developed key features across multiple modules using React Native, building responsive mobile UI and integrating backend APIs.
• Implemented request submission and tracking workflows enabling citizens to raise and monitor service requests within the application.
• Managed mobile app deployment and release cycles, including versioning and publishing updates to Google Play Store and Apple App Store.
• Collaborated closely with backend teams to ensure reliable API integration, error handling, and stable application behavior across releases.

Social Authentication Integration (Mobile Application)
React Native, Firebase Authentication

Implemented social login authentication enabling users to sign in to the mobile application using Google and Facebook accounts.

• Designed and implemented end-to-end social authentication flows using Firebase Authentication.
• Integrated Google and Facebook login providers, handling OAuth configuration, token management, and secure user session handling.
• Implemented user onboarding and account linking logic to support seamless login and account creation via social providers.
• Ensured reliable authentication flow by handling edge cases such as login failures, permission handling, and session persistence across app restarts.