Jair Ernesto López González

Successfully optimized the performance of 8 REST API microservices by 26% through a strategic upgrade from Spring Boot 2.6.7 to 3.2.3 and Java 21, including database update from Oracle 11 to Oracle 19 and the Swagger documentation. This enhancement directly contributed to cost savings and increased system availability.

Developed and maintained a suite of three Laravel-based web applications, including a main website, a betting analytics platform, and an API, to support a multinational online casino.

• Optimized database performance and streamlined operations to drive business growth.

• Decreased support ticket resolution time by 54% from an average of 33 minutes to 15 minutes by optimized PostgreSQL database queries and converting unresponsive reports with millions of entries into efficient, server-side paginated reports

• Accelerated report generation by 75% (from 5 second to 1 second in average) by migrating Excel report generation to the backend, freeing up browser resources and reducing user wait times

• Enhanced report readability by incorporating missing formatting and data visualizations, improving data clarity and usability

• Migrated internationalization from zerospam/laravel-gettext to Laravel’s built-in mechanism, streamlining the localization process and improving translation management

• Develop a Blade component using DataTable to create interactive and efficient report tables, improving code readability and reusability, and improving user experience, data analysis capabilities

• Expanded betting analytics platform functionality by adding features for customer service operations, increasing efficiency and reducing support ticket resolution time

• Upgraded application stack by migrating from PHP 7 to PHP 8.3 and Laravel 8 to Laravel 10, improving application security and performance

• Implemented PostgreSQL streaming replication to offload read-only operations, enhancing database performance and scalability

Designed and developed core features for ScieMce, a collaborative study platform, significantly enhancing user experience and driving engagement. Leveraged vanilla JavaScript, Question2Answer, PHP, and Manticore to build a robust and scalable platform. Responsibilities:

• Increased user engagement through the development of flashcard creation, study packs, and collaborative study pack features

• Improved search results relevance integrating Manticore search engine and optimizing search algorithms

• Enhanced user experience by implementing dark/light mode, intuitive sign-up/login flows, and engaging flashcard player

• Successfully integrated PayPal Checkout and Subscription APIs to enable seamless payment processing and subscription management

• Overcame limitations of Question2Answer’s architecture by implementing a custom search engine to improve search results accuracy, user collaboration, and payment processing

Islamiqate is a Question2Answer responsive web application that crowdsources the best content on Islam, its civilization, and its people. Key achievements:

• Successfully transformed the website into a responsive design, enhancing user experience across different devices

• Integrated front-end and back-end components, ensuring seamless data flow and functionality

• Identified and resolved critical security vulnerabilities, protecting user data and system integrity

• Implemented new features including question closing, post authorship modification, custom user feeds, image galleries, new topic creation, image updates, and informative tooltips, improving user engagement and platform functionality

• Optimized deployment scripts for efficient and reliable updates

• Achieved third-highest GPA in the Computer Science department in the first year of study. Maintained a strong academic record throughout the program

• Received top honors in the Web Development course (with a grade of 19 out of 20), inspiring my career in software development

• Relevant coursework included Data Structures, Algorithms, Database Systems, and Web Development

• Degree completion extended due to multiple university strikes

• Demonstrated exceptional time management and perseverance by balancing full-time work and advanced English studies

• Completed a comprehensive English language program, encompassing basic, intermediate, and advanced levels, totaling 325 academic hours

• Achieved an outstanding average score of 97/100, demonstrating exceptional language proficiency

• Developed advanced proficiency in reading, writing, speaking, and listening, essential for effective collaboration in international work environments