I want write a work experience in my resume. this is multi version of a concept in a section of this experience. please join all versions together and generate only one version which cover all concept and is perfect for a job experience. the output should be only one perfect and clear and comprehensive and with consistency short bullet point but the perfect version of it which covers all concept of this sentence dont forget i want only one bullet point:


Improvement and Refactoring of the Previous System:
Review and Optimization: Evaluated and refactored the existing frontend code (Vue.js) to enhance readability, structure, and performance.
Continuous Maintenance and Updates: Managed and updated the system while it remained actively used by a large number of users.
Design and Implementation of a New System:
Research and Architecture Design: Conducted research, analyzed requirements, and designed a new frontend architecture using Vue.js, TypeScript, and Webpack.
Complete Frontend Implementation: Developed the entire frontend using the Quasar framework, focusing on coding standards, scalability, and extensibility.
Refactoring the Previous Codebase:
Initial Code Review: The legacy project, initially built with Vue.js but lacking coding standards and best practices, suffered from spaghetti code and maintainability issues. I refactored the code to improve its structure and maintainability.
Ongoing Maintenance and Development: Given the large active user base, ongoing codebase maintenance and performance optimization were critical to ensuring system stability and enhancing the user experience.
Development of a Scalable Architecture:
System Redesign: After thorough research and analysis of system needs, I redesigned the frontend architecture, focusing on scalability and adherence to modern design standards.
Performance Monitoring and Continuous Improvement: Regularly assessed the system’s performance using various tools, evaluating the impact of new features on the overall project.
Redesign for Improved User Experience and Performance:
System Redesign: Reworked previous projects to enhance both performance and user experience. Implemented necessary changes to improve maintainability and efficiency.
Code Refactoring: Conducted a comprehensive analysis of the legacy code, which was poorly structured and did not follow Vue.js standards. Refactored the code to improve organization and quality.
Project Maintenance and Expansion:
Legacy System Maintenance: Managed and maintained the existing codebase, supporting a large number of active users, while simultaneously developing the new system.
Frontend Rewrite: Led the research, planning, and redesign of the frontend architecture to ensure the new system was scalable, extensible, and maintainable.
New Frontend Design and Implementation:
Redesign and Development: Designed and implemented the new frontend using Vue.js and the Quasar framework, adhering to development best practices and creating an optimized, responsive user experience.
Codebase Review and Refactoring:
Initial Review: The legacy project, built using Vue.js, lacked standard practices and was highly disorganized. I led the refactoring process to improve the structure and quality of the code.
Ongoing Maintenance: Managed the existing codebase to support a large active user base while concurrently developing a new system.
Research and System Rewrite:
Research and Rebuild: Led the research and planning phases to redesign the frontend architecture, ensuring that the new system was highly scalable and maintainable. Worked closely with backend and DevOps teams to ensure seamless system integration.
Complete Frontend Redesign:
Implementation of the New System: Redesigned and implemented the new frontend using Vue.js and the Quasar framework, focusing on best practices, scalability, and an optimal, responsive user experience.