Consistently delivered features for a complex DMC-style web application, enhancing usability, performance, and reliability in high-complexity data environments—reducing rendering bottlenecks and improving overall user experience. Implemented advanced state and data management using Signals, NgRx, RxJS Subjects, and BehaviorSubjects to ensure predictable, responsive data flows across the application. Collaborated with backend developers on NestJS services, contributing targeted backend tasks to close feature gaps and ensure seamless API integration. Applied reactive architecture, component decomposition, and performance optimization best practices to keep the codebase clean and maintainable as the product scaled. Leveraged GitHub Copilot (agent mode) and Claude AI to accelerate development cycles, improve code quality, and lead exploration of scalable patterns within the team.

Led frontend development of a large-scale monolithic application built from scratch in Angular, participating across the full lifecycle from architecture to production deployment. Improved performance and maintainability through lazy loading, custom directives, interceptors, and route guards; implemented JWT-based authentication with role and permission management. Integrated complex REST APIs using RxJS reactive programming, managing asynchronous data flows to deliver a responsive and reliable user experience. Built scalable UI architecture using SCSS with variables/mixins and NgRx for predictable state management; adapted the solution across multiple sprints as requirements evolved. Wrote unit and integration tests with Jasmine/Karma; supported CI/CD pipelines and continuous integration practices to deliver stable, high-quality releases on schedule. Collaborated daily with UX designers and backend developers in an Agile/Scrum environment—led code reviews, participated in sprint planning and retrospectives, and mentored peers on best practices.