• Led a team to maintain and update a Java Spring Boot application, managing deployments and architecture on Heroku.• Redesigned a monolithic structure into pre-microservices, integrating service layers and designing a PostgreSQL database architecture.• Handled OAuth and Amazon S3 integrations.• Participated in all stages of the software development lifecycle, ensuring quality, efficiency, and scalability. Delegated sub-tasks to juniordevelopers, assessing and enhancing their skills.• Revolutionized efficiency by converting object references to ID references and using repository-based lookups, cutting redundancy and saving30% in storage space.

•Led a team to develop and maintain innovative projects for the automation and optimization of human resources processes.•Spearheaded the conception and development of the "Human Resources Engine" project, revolutionizing the company's internal management.•Hired and supervised a team of 4 talented programmers, ensuring the development and maintenance of robust and scalable solutions.•Implemented a solid backend using PHP with Laravel, MariaDB, and MongoDB, creating a centralized API that facilitated project migration across different frontends.•Developed modern applications using Flutter and ReactJS, adapting to the changing needs of the business.Managed deployments on Heroku and later on IONOS, ensuring reliable and optimized service.Handled cost studies, planning, and budgeting to ensure efficient use of resources.

•Developed and maintained a rewards API using PHP and Laravel for a pharmaceutical company, handling over 15,000 transactions per month and managing monthly rewards exceeding 50,000 pesos.•Enhanced API efficiency: Conducted an intensive debug of our rewards API to align with a provider’s rules API, increasing the match rate from 63% to 96%.•Performed data analytics: Generated comprehensive monthly reports and loaded rules into ArangoDB, a graph theory database.•Managed multiple databases: Stored logs and historical information in MongoDB and relational data in MariaDB, optimizing queries for performance.•Utilized various tools: Employed Postman, Python, Excel, PHP, and Laravel for data analytics and system optimization.•Led internal investigations: Conducted performance tests to optimize database queries and improve system efficiency.•Integrated payment systems: Successfully integrated a Banregio terminal into our point-of-sale system using C# and FoxPro, with intermediate scripts in Windows Bash.•Collaborated with vendors: Actively participated in meetings and approval processes with vendors to ensure seamless API integrations.

• Concept Development: Spearheaded the development of a personal management application, proposing innovative ideas and designing prototypes in AdobeXD.• Cross-Platform Development: Developed the application using Flutter for the frontend, ensuring compatibility across multiple platforms.• Backend Integration: Implemented Firebase for the backend database and user authentication, providing a robust and scalable solution.• Skill Development: Self-taught Flutter from scratch, successfully applying new knowledge to create functional prototypes.• Freelance Leadership: Managed the project independently, coordinating with the investor to align the application's features with business goals.