Senior Full Stack Developer

•Developed and maintained the RV/GoodSam web application using React, Node.js, Symfony 6, PostgreSQL, Docker, and Grafana, delivering a stable platform that improved reliability and accelerated new feature delivery •Designed and implemented a Backend-for-Frontend (BFF) architecture using Node.js and Express to decouple front-end React applications from complex microservices, improving performance and frontend team autonomy. •Built and maintained GraphQL resolvers in a Node.js BFF layer to aggregate data from multiple microservices, reducing client-side data-fetching logic and improving API response times by 35%. •Developed scalable BFF services that tailored REST and GraphQL responses for React frontends, enabling feature-specific APIs, simplifying state management, and accelerating UI development cycles. •Integrated legacy websites into a monorepo and microservices architecture with Next.js, Vercel, and React, streamlining deployments and reducing maintenance effort •Used Jira to track work items and GitHub to manage source code, keeping the team’s backlog organized and reducing code-merge conflicts •Developed responsive, interactive web applications with JavaScript, HTML, and CSS, improving user experience across browsers •Built RESTful APIs with Node.js, Express, and MongoDB, enabling the front-end to retrieve data reliably •Wrote unit tests for GraphQL APIs using Jest, Cypress, and Apollo Server testing utilities, ensuring queries and mutations function correctly and reducing bugs in production •Designed and implemented efficient GraphQL APIs and schemas, enabling streamlined data fetching and reducing over-fetching for various web applications. •Integrated and consumed GraphQL APIs on the frontend using modern client libraries (e.g., Apollo Client, Relay) to build dynamic and performant user interfaces. •Fixed critical bugs in Symfony 6 and PHP codebase, eliminating recurring crashes and improving system stability •Tested Next.js applications with Jest, Cypress, and React Testing Library, identifying and fixing UI rendering and API interaction issues, which increased test coverage and reduced production defects •Managed the Email Management System project built with Angular, Symfony 6, PHP, Java Spring Boot, and MongoDB, delivering the product on schedule and meeting stakeholder requirements •Optimized performance of page loading time and PostgreSQL DB schema •Developed and deployed intelligent chatbots using React, Redux, and a Node.js/Express backend integrated with Azure AI services, which delivered real-time natural language processing and increased user interaction speed •Engineered AI-powered features with Python and JavaScript, employing TensorFlow, NumPy, and scikit-learn for model training and inference, resulting in automated analytics that accelerated decision-making for the platform •Designed scalable chatbot architectures supporting contextual dialogue management, API integration, and cloud-based deployment, enhancing user experience across web platforms. •Customized the existing Ruby on Rails CRM application by adding new reporting dashboards, integrating PostgreSQL for data storage, and using GitHub for version control, which streamlined sales workflows and reduced manual data entry •Implemented protobuf-based APIs and managed service discovery, load balancing, and streaming capabilities to enhance scalability and reliability. x

•Implemented a new feature that estimates a bidder’s plan from scratch using React hooks (e.g., useState and useEffect), enabling the team to generate accurate plan projections •Developed user-interaction screens with React, Material-UI, Jest, HTML5, CSS3, Bootstrap, JavaScript, and jQuery, improving UI responsiveness and test coverage •Built micro-frontend modules with React, integrating them into the main application and reducing load times for feature teams •Optimized an existing application by applying React performance hooks such as useMemo and useCallback and implementing lazy loading, which decreased page load time and memory usage •Resolved webpack configuration issues, restoring the build pipeline and preventing deployment delays •Developed reusable React components using hooks and ES6, reducing duplicate code across the application •Implemented new form-field validations in React, strengthening security and decreasing validation errors •Optimized the codebase with SonarQube, improving performance and lowering technical debt •Built reusable UI components and wrote unit and end-to-end tests with Jest and Cypress, increasing test coverage and catching bugs early •Resolved accessibility issues in the internal portal using automated tools and manual testing, achieving compliance with WCAG standards •Fixed GraphQL API integration issues in the internal portal using Apollo Client and Bitbucket for version control, restoring data flow and preventing downtime

•Developed full-stack web applications with Java, JavaScript, React, and Play Java MVC, using HTML/CSS and connecting to SQL Server and PostgreSQL via JDBC, delivering functional features that met project requirements •Led migration of Microsoft Dynamics GP to a custom ERP system built with PHP, SQL, MSSQL and MongoDB, enabling faster reporting and reducing licensing costs •Implemented WCAG 2.1 accessibility guidelines across all site pages using ARIA attributes and Cypress automated tests, improving compliance for assistive-technology users •Created reusable UI components with Material UI and React Hooks, following best practices for scalability and maintainability, which reduced development time for new features •Refactored legacy React class components to functional components using React Hooks and updated unit and integration tests with Jest and Cypress, simplifying the codebase and lowering the bug rate •Validated multiple client-side forms using JavaScript and jQuery, ensuring accurate data entry and reducing user errors •Utilized ES5-ES7 features to handle asynchronous data requests, improving code readability and reducing load times •Developed a React Native hybrid mobile app from scratch by modeling the internal CRM project, delivering a unified interface for sales teams

•Built internal CRM websites using Laravel, MySQL, React, and TypeScript, deploying them on AWS, which enabled the sales team to manage leads more efficiently •Integrated external APIs using Apollo GraphQL, streamlining data exchange between services and reducing data retrieval time •Implemented a custom data-visualization tool on the frontend using Chart.js and dynamic tables, allowing users to explore key metrics interactively and improving decision-making •Developed frontend features with React hooks, Redux, JavaScript, jQuery, and Bootstrap, enhancing UI responsiveness and reducing page load time •Created a responsive React application from Figma designs, delivering a consistent user experience across devices and increasing user satisfaction •Integrated the frontend API using JavaScript and .NET, and collaborated with backend, QA, and product teams via Bitbucket, resulting in smoother cross-team workflow •Ensured web pages met WCAG 2.1 accessibility standards by using automated tools such as axe and manual testing, improving overall site accessibility •Developed backend services with Ruby on Rails, Laravel, CodeIgniter, and Node.js Express, connecting to MongoDB and relational databases, enabling new features and supporting multiple client requirements

•Built web pages using HTML5, CSS, and JavaScript/jQuery, ensuring cross-browser compatibility •Added new features and customized an existing LMS project with JavaScript and jQuery, expanding platform functionality for instructors •Developed a custom text editor using Vue/Nuxt, enhancing the editing experience for end users •Managed large, complex forms with jQuery, Bootstrap, CSS, and SCSS, reducing form-submission errors and streamlining data entry •Implemented a mobile-responsive UI using CSS media queries and Bootstrap’s grid system, improving usability on smartphones and tablets •Integrated RESTful endpoints and third-party APIs using Flask, enabling the application to retrieve external data and improve overall functionality •Deployed the web application to an Ubuntu AWS EC2 instance, configuring security groups and automated scripts to ensure reliable production availability •Developed a Flask-based web application and deployed it on an AWS EC2 instance with Nginx and Gunicorn, achieving stable request handling and reduced latency •Developed accessible web pages that met WCAG, Section 508, ADA, and W3C guidelines, improving compliance and enabling use by users with disabilities •Utilized Python packages such as NumPy, SciPy, and PyTables to process and analyze large datasets, enhancing data-handling efficiency for the application