MANIKANDAN K

Key Responsibilities & Achievements:

• Full-Stack Development: Delivered end-to-end solutions by combining Ruby on Rails for backend logic with HTML , CSS , and jQuery for responsive and interactive front-end development.
• Ruby on Rails Development: Developed and maintained applications in a production UNIX/LINUX environment using Ruby on Rails , ensuring optimal performance and stability.
• Database Management & Migration: Performed seamless database migrations with ActiveRecord , ensuring data integrity and minimizing downtime during updates.
• SQL Expertise: Applied extensive knowledge of SQL — including tables , joins , and indexes — to design efficient queries, improving database performance and reducing load times.
• Performance Optimization: Enhanced system performance through data optimization techniques, resolving N+1 query issues , improving indexing, and implementing efficient ActiveRecord scopes and associations .
• Bulk Data Handling: Managed bulk data collection and conducted performance tuning on large datasets using Ruby and SQL to enhance query speed and data retrieval.
• Page Builder Development: Designed and developed a custom page builder in Rails , inspired by WordPress functionality, enabling improved content management for non-technical users.
• Frontend Development: Created dynamic, user-friendly UI components using HTML , CSS , and jQuery , ensuring cross-browser compatibility and improved user experience.
• Slim Templating: Applied Slim for lightweight and clean template structures, improving code readability and enhancing front-end performance.
• Testing & Quality Assurance: Utilized RSpec for writing unit tests, ensuring robust code quality, improved test coverage, and faster debugging.
• Migration & Modernization: Led the migration of a legacy Rails application from Ruby 1.8.7 and Rails 3.3.6 to the updated Tech Stack 2.0 , ensuring improved performance, security, and scalability.
• Automation with Cron Jobs: Automated recurring tasks like data sync, reporting, and cleanup using the Whenever gem , improving operational efficiency.
• Authentication System: Integrated Devise for secure user authentication, enhancing security measures and ensuring robust session management.
• Agile Development & Delivery: Actively participated in all phases of development — from requirement gathering to deployment — delivering projects within tight deadlines.
• IDE & Development Tools: Worked with development environments such as Sublime Text , ensuring efficient coding practices.
• Live Bug Fixing: Resolved critical production issues with minimal downtime by proactively identifying root causes and implementing quick fixes.
• Version Control & Collaboration: Managed code using Git , following best practices like branching strategies, pull requests, and code reviews to maintain a stable codebase.
• Team Collaboration & Mentorship: Collaborated closely with frontend developers , QA testers , and stakeholders to ensure smooth integration of features and project success. Mentored junior developers on best practices, debugging strategies, and coding standards.

Key Tools & Technologies:
Ruby on Rails, HTML, CSS, jQuery, Slim , RSpec , Devise, Whenever Gem, MySQL, ActiveRecord, Git, RESTful APIs, Sublime Text, DataTables