Josue Coreas

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Full Stack Developer

RedSalud Chile

Dec 2024 - Mar 2025 (4 months)

• Maintenance and Bug Fixing: Implemented targeted improvements and resolved system issues. • Database Query Optimization: Refactored PostgreSQL queries to enhance performance and reduce response times. • Technologies Used: Laravel for Backend, PostgreSQL as Database, and Google Cloud Platform for Infrastructure.

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Full Stack Developer

Ministry of Environment of El Salvador

Sep 2024 - Dec 2024 (4 months)

• Marine Turtle Conservation Platform: Developing a comprehensive platform for managing data on marine turtles across El Salvador. The system stores detailed information on turtle characteristics and nesting data, helping to track and protect marine populations. • Technology Stack: Using Laravel for backend development, React.js for the frontend, and MySQL for database management, ensuring secure and efficient data storage to support environmental conservation efforts.

Full Stack Developer

freelance

Jul 2024 - Sep 2024 (3 months)

• Restaurant Reservation System: Developing a comprehensive reservation system for a restaurant, including online booking and advance payment processing through PayPal. • Technology Stack: Implementing the system with Laravel for the backend, React for the frontend, and PostgreSQL as the database.

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Software Developer

RedSalud Chile

Jun 2024 - Aug 2024 (3 months)

• Health System Assessment: Led the assessment of RedSalud's extensive health system, analyzing its functionality and identifying key issues. Provided a detailed report with recommendations to enhance the user experience and optimize resource management. • Improvement Proposals: Designed improvement proposals based on system analysis, focusing on operational efficiency, scalability, and reducing platform response times. • Technologies Used: Laravel for the backend, PostgreSQL for the database, and Google Cloud Platform (GCP) for the infrastructure.

Software Developer

Fresh Consulting

Mar 2022 - Feb 2024 (2 years)

• Backend Development: Designed and developed backend modules for property management software, using NestJS and PostgreSQL. • API Integration: Implemented third-party API integrations to enhance software functionality and user experience. • System Optimization: Contributed to optimizing the system architecture through AWS to achieve efficiency and scalability.

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Software Developer

Optima Servicios Financieros

Nov 2020 - Mar 2022 (1 year 5 months)

• Digital Channels Development: Created and maintained digital financial channels using Node.js with Express.js and PHP with Laravel. • Website Development and Maintenance: Developed a website with Flutter for a new digital channel and managed corporate websites built on WordPress. • Process Automation: Worked on process automation using Automate, enhancing operational efficiency and reducing manual workload.

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Software Developer

Red 4G

Apr 2017 - Nov 2020 (3 years 8 months)

• Team Leadership: Led a development team to create a web platform focused on cybersecurity, managing multiple firewalls. • Technologies Used: Developed using PHP (Laravel), Angular for frontend, and managed databases with MySQL and MongoDB. • Security Enhancements: Implemented advanced security solutions, improving protection against cyber threats.

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Backend Developer

Tecnología Móvil de El Salvador

Oct 2015 - Apr 2017 (1 year 7 months)

• API Development: Designed and developed APIs for mobile applications in a delivery services platform. • Module Management: Developed call center modules for order management and tracking. • Technologies Used: Utilized PHP (Laravel) and MySQL, ensuring smooth communication between services.

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Web Developer

Laptops Valdez

May 2015 - Oct 2015 (6 months)

• Internal Management Systems: Developed a system for internal process management, including inventory and reporting. • Technologies Used: Implemented with CodeIgniter, MySQL, Bootstrap, and Ajax for an efficient user interface.

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Junior Web Developer

NetworkLat

Oct 2014 - Feb 2015 (5 months)

• Shipping Management Platform: Developed a platform for managing package shipments, including real-time tracking and customs tax management. • Technologies Used: Developed with Laravel, Ajax, jQuery and MySQL, ensuring efficient and secure management.

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