Gulnar Hasan-zada

Developed features for high-volume, commercial-grade web application managing testing services, processing 1000+ monthly bookings for transportation, oil & gas, and other industries across Canada Played a pivotal role in developing a comprehensive Calendar application with React and Next.js, implementing real-time availability Integrated secure user authentication into the Calendar app using OAuth 2.0 with Okta and JWT-based session management, ensuring robust access control across user roles. Architected responsive UI components with React.js, Next.js, TypeScript and Zustand, establishing design patterns adopted across teams Modernization of Angular client application with Tailwind CSS, improving performance and adding new component and features Designed and delivered feature-rich calendar application using Next.js and MongoDB with real-time synchronization Architected new Java Spring REST API endpoints and features Developed MongoDB bulk update framework with transaction support, processing 1M+ records with 99.99% accuracy Implemented JIRA/Confluence best practices and mentored junior developers Established test strategies with Mockito, PowerMockito, JUnit and Jest, achieving 90%+ coverage. Containerized local development environments with Docker. Utilized Docker Compose to orchestrate multi-service setups, enhancing developer onboarding and environment consistency. Deployed and monitored applications on Azure-based staging and production environments, collaborating with DevOps to ensure high availability and performance.

- Developed WCAG 2.x AA, AODA, WAI-ARIA compliant, responsive UI components and features with React and Tailwind CSS - Developed and tested new endpoints and features for Java Spring REST APIs. - Led the successful migration of the Credit Card Application Management API (CCAMA) from OpenStack to VMware Cloud 2.0 (VMC2) with zero downtime during transition. - Collaborated in an Agile team environment, participating in sprint planning and daily stand-up meetings. - Used project management tools such as JIRA and Confluence for streamlined development processes. Proficient in Source Control (GIT & Bitbucket) for version control. - Deployed code updates and new features to production environments using CI/CD pipeline. - Implemented unit testing with JUnit, Jest and React Testing Library to validate the functionality and reliability of new features before release, ensuring a high-quality products.

-Developed a real-time Inventory management system using React, Material UI, HTML5, CSS3, Bootstrap4, Redux, and Redux Toolkit to optimize stock tracking. - Designed and implemented RESTful APIs for Inventory management system using Node.js, NPM, Express.js, and MongoDB (Mongoose), improving efficiency by 30%. - Integrated RESTful APIs with the UI using Node.js, NPM, and Express.js with MongoDB (Mongoose) for seamless communication between frontend and backend systems. - Contributed to support and improvement of Flagstar Bank's loan application, utilizing microservices architecture and microfrontend, while also swiftly addressing UI issues to optimize user experience and maintain application continuity. - Applied WCAG 2.x AA, AODA, WAI-ARIA compliance and responsive design principles to develop React components for internal HR application resulting in a 40% increase in user satisfaction. - Utilized Redux Toolkit for efficient state management in complex React applications. - Implemented unit testing with Jest and React Testing Library leading to a 40% reduction in bug occurrences, ensuring high-quality product delivery for global users. - Applied Git for version control, collaborating with a cross-functional team via GitHub to manage code repositories, track changes, and conduct code reviews for web projects.

- Implemented PHP, JavaScript, jQuery, HTML5, CSS3, Bootstrap 4 and MySQL to develop new frontend and backend features for an Internet provider’s Billing System - Optimized MySQL queries and executed database indexing resulting in a substantial 35% performance enhancement for the Billing System - Integrated external APIs into Billing System to enable online and terminal payments, contributing to a 20% increase in company revenues - Developed and implemented an internal Financial Management app, using Angular, HTML, CSS, and Bootstrap for the front end and Node.js with Sequelize and Express.js for the back end API. Automated manual tasks, resulting in a 30% reduction in processing times and significantly improved operational efficiency of the Finance department. - Translated UI/UX mockups into fully functional front-end applications to enhance user experiences by implementing industry best practices of design patterns. - Managed MySQL database operations to provide regular reports to stakeholders resulting in a 20% improvement in data accessibility and decision-making processes.