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Hi there! I’m Serene Babu, a Full Stack Developer with 3+ years of experience building API-driven, responsive web applications using React, TypeScript, JavaScript, HTML, CSS, and .NET/C#. I have a strong background in accessibility (WCAG), usability, and test-driven development with Jest and React Testing Library. I’m passionate about delivering performant, accessible user interfaces and collaborating with cross-functional teams in Agile environments. I’m always eager to apply modern frontend tooling and best practices to improve code quality and deliver value in Ireland-based roles. I enjoy solving complex UI and API integration challenges, advocating for accessible design, and continuously learning new skills to contribute effectively to product teams.…Hi there! I’m Serene Babu, a Full Stack Developer with 3+ years of experience building API-driven, responsive web applications using React, TypeScript, JavaScript, HTML, CSS, and .NET/C#. I have a strong background in accessibility (WCAG), usability, and test-driven development with Jest and React Testing Library. I’m passionate about delivering performant, accessible user interfaces and collaborating with cross-functional teams in Agile environments. I’m always eager to apply modern frontend tooling and best practices to improve code quality and deliver value in Ireland-based roles. I enjoy solving complex UI and API integration challenges, advocating for accessible design, and continuously learning new skills to contribute effectively to product teams.

Serene Babu

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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Hi there! I’m Serene Babu, a Full Stack Developer with 3+ years of experience building API-driven, responsive web applications using React, TypeScript, JavaScript, HTML, CSS, and .NET/C#. I have a strong background in accessibility (WCAG), usability, and test-driven development with Jest and React Testing Library. I’m passionate about delivering performant, accessible user interfaces and collaborating with cross-functional teams in Agile environments. I’m always eager to apply modern frontend tooling and best practices to improve code quality and deliver value in Ireland-based roles. I enjoy solving complex UI and API integration challenges, advocating for accessible design, and continuously learning new skills to contribute effectively to product teams.…Hi there! I’m Serene Babu, a Full Stack Developer with 3+ years of experience building API-driven, responsive web applications using React, TypeScript, JavaScript, HTML, CSS, and .NET/C#. I have a strong background in accessibility (WCAG), usability, and test-driven development with Jest and React Testing Library. I’m passionate about delivering performant, accessible user interfaces and collaborating with cross-functional teams in Agile environments. I’m always eager to apply modern frontend tooling and best practices to improve code quality and deliver value in Ireland-based roles. I enjoy solving complex UI and API integration challenges, advocating for accessible design, and continuously learning new skills to contribute effectively to product teams.

Available to hire

Hi there! I’m Serene Babu, a Full Stack Developer with 3+ years of experience building API-driven, responsive web applications using React, TypeScript, JavaScript, HTML, CSS, and .NET/C#. I have a strong background in accessibility (WCAG), usability, and test-driven development with Jest and React Testing Library. I’m passionate about delivering performant, accessible user interfaces and collaborating with cross-functional teams in Agile environments.

I’m always eager to apply modern frontend tooling and best practices to improve code quality and deliver value in Ireland-based roles. I enjoy solving complex UI and API integration challenges, advocating for accessible design, and continuously learning new skills to contribute effectively to product teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Beginner

Language

English

Fluent

Work Experience

Full Stack Developer (Part-time) at Mentika Process Outsourcing Ltd

February 1, 2026 - Present

Developed React + TypeScript SPAs integrating REST APIs with Redux/Context API state management. Built and maintained ASP.NET Core Web APIs with JWT authentication and authorization, applying clean architecture and SOLID principles. Implemented responsive UI components using Material UI and Styled Components with cross-browser compatibility. Wrote comprehensive unit and integration tests using Jest and React Testing Library to achieve high coverage and reduce production defects. Defined API contracts, error boundaries, loading skeletons, retry logic, and debugged cross-layer issues to ensure a seamless full-stack experience. Applied WCAG accessibility standards (ARIA, semantic HTML) to improve assistive tech compatibility and align with accessibility goals. Participated in Agile ceremonies delivering 12-week product increments with consistent velocity.

Full Stack Developer (Independent Contractor) at Caddayn

February 1, 2025 - February 1, 2026

Built an employee management system using ASP.NET Core Web API (C#, .NET 8) and SQL Server, exposing REST endpoints consumed by a React frontend for CRUD operations. Implemented secure authentication with JWT, along with role-based and user-based authorization, and protected routes in the frontend. Developed APIs for user management, activity tracking, and reporting with consistent JSON contracts and error handling patterns. Containerised the application with Docker for local/staging environments, enabling reliable frontend-backend integration.

Full Stack Developer (Project-based) at Orcawise

December 1, 2024 - September 30, 2025

Built API-driven chat interfaces in React and TypeScript, integrating Python Flask REST APIs and managing asynchronous UI state with hooks and custom state handlers. Designed reusable chat UI components and state management to support dynamic conversations, ensuring smooth updates and minimal UI lag. Refactored and optimized database interactions at the API level to support scalable, performant queries for chat histories.

Applied Research Project – Usability and Accessibility at SETU

September 1, 2023 - September 30, 2024

Designed and developed a React web application applying WCAG accessibility standards and human-centered design principles. Conducted usability research using personas, empathy maps, user journeys, and wireframes, iterating the UI based on user feedback. Implemented semantic HTML, ARIA landmarks, keyboard navigation, alt text, and clear content hierarchy to maximise accessibility; validated compliance with IBM Equal Access Toolkit and Accessibility Insights for Web.

Front-End Developer at Springpeople Software Pvt Ltd

November 1, 2022 - August 31, 2023

Developed frontend for an online education platform using HTML, CSS/SCSS, JavaScript, and jQuery, delivering responsive pages for multiple device breakpoints. Reused and customized existing templates/components to ensure consistent branding and visual hierarchy, and collaborated with designers and backend engineers to align UI with UX specifications and API contracts.

Software Development Engineer at Cloudegic Inc

April 1, 2022 - November 30, 2022

Built a responsive React + TypeScript UI for a travel agency client, integrating with a Node.js and MongoDB backend and ensuring cross-browser compatibility. Implemented admin and user panels with data-rich dashboards, bucket lists, and real-time notifications using React, Axios, and Web APIs. Integrated external APIs via Axios to render dynamic content; participated in code reviews and collaboration with product/backend teams to align UI with business rules. Implemented user authentication and engagement features using Context API, Redux, and Redux-Saga for robust state management. Wrote unit tests with Jest and React Testing Library to increase coverage and reduce regressions.

App Development Intern at Tata Consultancy Services

March 1, 2021 - June 30, 2021

Designed and developed an assistive mobile app for children with speech impairments using Figma, Flutter and SQFlite, focusing on accessible UI patterns.