Femi Benny

Senior UI Engineer

Bangalore

Profile Score

About

Senior UI Engineer with 6+ years of experience leading state management and frontend architecture (Redux/Redux Toolkit, scalable folder structures, reusable component systems) for React and Next.js applications. Strong in REST API integration and auth flows (JWT, error handling), performance optimization (memoization, lazy loading, bundle size), and building data-heavy dashboards and AI-enabled UIs. Delivered responsive, secure interfaces for analytics and AI platforms (conversational AI, RAG-based document intelligence, and customer intelligence) in close collaboration with backend and data teams.

Skills & Expertise (40)

React.js Expert

9.0/10

Years Exp

JavaScript (ES6+) Expert

8.8/10

Years Exp

REDUX Advanced

8.5/10

Years Exp

Typescript Advanced

8.2/10

Years Exp

Django Rest Framework Intermediate

7.5/10

Years Exp

Chart.js Responsive Web Design Nivo.rocks ECharts Figma Draw.io Git GitHub Docker Webpack Vite Apache NiFi Celery Redis Azure Blob Storage Oracle APEX PL/SQL database design API Error Handling Next.js Redux Toolkit React Hooks Custom Hooks Component-Based Architecture State management patterns RESTful APIs JWT Authentication D3.js Performance Optimization Memoization lazy loading Bundle size optimization HTML5 CSS3 Material UI

Work Experience

UI Consultant

Covalense Digital

Jan 2023 - Aug 2023

Designed and developed scalable web applications using React.js and Next.js with component-based architecture and reusable UI components across modules. Implemented state management using Redux for complex application flows, supporting predictable data handling and maintainable UI patterns. Worked extensively with Material UI and Next.js to ensure design consistency and performance optimization in production-facing interfaces. Integrated frontend applications with backend services via RESTful APIs to ensure reliable data flow and stable user experiences. Built responsive interfaces compatible across devices and screen sizes using modern HTML/CSS and JavaScript (ES6+). Debugged and resolved complex UI issues, improving application stability and delivery velocity.

Software Developer

OGES INFOTECH

Jan 2019 - Jan 2019

Developed customized ERP solutions and integrated applications with existing infrastructure to streamline operations. Built robust, data-driven applications using Oracle APEX and PL/SQL, improving query performance and overall stability. Created master-detail pages, interactive reports, tabular forms, charts, and graphs to support business processes and reporting needs.

Senior UI Engineer

Chrysalisgold

Feb 2020 - Present

Owned end-to-end delivery of scalable web applications using React.js and Django REST Framework, translating complex requirements into maintainable, component-based UI architecture. Led state management and app architecture using Redux/Redux Toolkit and React Hooks/custom hooks patterns, improving consistency across modules and enabling reuse at scale. Designed and integrated RESTful APIs with JWT-based authentication, including robust auth flows and error handling for secure session management. Built advanced dashboards and analytics modules for AI/ML features (Social Media Analysis, User Behavior Analysis, Churn Prediction), presenting complex datasets through clear, user-centric interfaces. Implemented custom data visualizations using D3.js, Chart.js, Nivo.rocks, and ECharts to support data-driven decision-making and executive reporting. Delivered UI for AI-powered experiences including conversational AI and RAG-based document systems; integrated AI/LLM responses and RAG summaries into intuitive UI components. Developed Iridium – Enterprise AI Assist & Document Intelligence Platform: a React-based conversational application enabling secure access to analytics, documents, and organizational data, including chat-based experiences for analytics, org chart, and documentation queries. Implemented UI-level Role-Based Access Control (RBAC) workflows aligned with enterprise policies to enforce secure, role-specific data access within the frontend. Integrated RAG-based document retrieval supporting PDF, Word, Excel, and CSV formats, enabling chat-driven discovery and summarization of organizational content. Improved perceived performance and responsiveness through frontend performance optimization techniques (render optimization, memoization, lazy loading, bundle-size awareness). Designed UI workflows and prototypes using Figma and Draw.io to accelerate stakeholder alignment and reduce iteration cycles during development. Developed a React-based visualization system integrated with Apache NiFi for visual creation and management of processor flow models and KPIs. Implemented asynchronous background processing using Celery and Redis to improve system performance and reliability for data-heavy workflows. Integrated Azure Blob Storage for secure file read/write operations within cloud-based data pipelines. Mentored junior developers and interns, reinforcing best practices in UI development, code quality, and Git-based collaboration.