Juan José Morales Zapata Email & Phone Number

Medellín, Antioquia, Colombia

Argentina

As a Backend Developer at Experion Solutions, I focused on developing APIs in JavaScript/TypeScript for PostgreSQL databases, emphasizing clean architecture and query optimization to boost software scalability and performance. My role also involved applying design patterns, agile methodologies like Scrum, and technologies such as BFF and Elastic Search, enhancing my versatility and impact on project success.Key Responsibilities:-Ensured the implementation of clean architecture principles in backend development to promote maintainability and scalability of the software.-Prioritized the completion of tasks outlined in user stories, focusing on agility and product quality to meet project objectives effectively.-Managed PostgreSQL relational database, implementing key concepts such as migrations, indexing, ORMs usage, microservices architecture, and more to optimize database performance and structure.-Proficiently utilized Git/GitHub, leveraging pull request mechanisms, code reviews, branch management, merge conflict resolution, and continuous integration workflows to ensure project organization and collaboration, facilitating a smooth workflow and quality assurance.Achievements:-I participated in the migration of the project from JavaScript to TypeScript in Nest.js, applying principles of vertical slicing and clean architectures, which resulted in an improvement in code readability and a reduction in implementation errors.-Implemented rigorous unit testing for all backend functions, ensuring thorough software quality assurance and adherence to best practices.-I worked on transforming the development approach by adopting clean architectures, resulting in increased development efficiency and reduced software maintenance time.-Excelled in development task execution, consistently surpassing client expectations with the agile and high-quality delivery of products.

Colombia

As a Backend-focused Full-Stack Developer at UrkDash, I led the optimization and enhancement of software, ensuring effective integration of backend functionalities developed in JavaScript and Node.js with the frontend. My role involved managing MongoDB databases and implementing Docker environments, balancing full-stack tasks to improve software performance and scalability.Key Responsibilities:-Development of APIs focused on HTTP and MQTT protocols for efficient data transmission to and from a broker, with a specific focus on Internet of Things (IoT) applications.-To propose and lead initiatives aimed at improving backend productivity and efficiency, with an emphasis on efficient data reception and transmission through the adoption of optimized algorithms and effective data caching strategies.-Managing the database to ensure its efficiency and stability.-Ensure the security of NoSQL databases (MongoDB), safeguarding data integrity.-Continuously verify and validate software through testing processes to uphold product quality.Achievements:-Resolved critical bugs and errors in the platform through comprehensive testing, employing automated test suites and manual debugging techniques. This meticulous approach led to a 40% improvement in software efficiency and user experience, significantly reducing system downtime and enhancing overall system reliability and performance metrics.-Successfully implemented APIs that receive and send data, which are used for their visualization on the platform. This included implementing middlewares and gateways to ensure their correct display and storage, thus optimizing user interaction with the interface and guaranteeing data integrity.-Creation of a robust backend with high availability, scalability, security, and other qualities to deliver a high-quality product.-Implemented security measures, using JWT, OAuth 2.0, bcrypt for hashing, and SSL/TLS for data encryption, to ensure user and data protection.

Capital District, Colombia