Jesser Rojas

Experience

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  CrediFácil Nicaragua

  Mar 2016 - Jun 2018

  Full Stack Developer

  Android App Enhancement (Java): Orchestrated the reordering of an existing Android app's architecture. Implemented a sophisticated MVC system design to elevate overall efficiency and user experience.Web Services Development (C#): Pioneered the creation of web services using C#. Applied advanced techniques in handling Entity Framework. Ensured adherence to industry best practices for the development of scalable and optimal solution.Designed and implemented database administration processes for API. Performed troubleshooting and debugging to resolve issues promptly and ensure optimal performance of both the application and database.Collaborated with cross-functional teams to implement new features and improve existing functionalities, considering database design implications.Contributed to code reviews and provided technical support to ensure the stability and scalability of the applications and databases.Documented database administration procedures and provided training to team members for knowledge transfer and skill development. Show less

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  Somos Discovery S.A

  Jun 2018 - Mar 2019

  Full-stack Developer

  Development and implementation of an innovative application to manage a USSD interface in close collaboration with a phone provider, utilizing the Spring Framework. Took charge of creating a robust USSD UI simulator using JavaScript, ensuring a seamless user experience. Developed web services using Java and Spring, contributing to the overall functionality and efficiency of the system.In a parallel project, collaborated on a React-based initiative, specializing in the creation of reusable components that significantly enhanced project scalability and maintainability. Demonstrated versatility by seamlessly navigating between different technologies and projects, showcasing adaptability and a keen ability to contribute effectively to diverse teams.Conducted maintenance and enhancements on web applications built with Spring Framework, MongoDB, and React.Performed troubleshooting and debugging to resolve issues promptly and ensure optimal performance.Collaborated with cross-functional teams to implement new features and improve existing functionalities.Contributed to code reviews and provided technical support to ensure the stability and scalability of the applications.Documented maintenance procedures and provided training to team members for knowledge transfer and skill development. Show less

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  PAiC Business Development

  Jan 2020 - Jul 2020

  Full Stack Developer

  Coordinate with international clients in Europe and India to ascertain their needs and desires to determine technical requirements for each project.Improved the efficiency and response times of a Java-based API developed with the Spring framework, optimizing resource utilization.Stabilized a PHP legacy API, implementing strategic improvements for enhanced reliability and maintainability.Conducted proactive maintenance for a React Native e-commerce application, ensuring seamless functionality, resolving bugs, and optimizing the overall user experience. Show less

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  Our Children First (OCF)

  Feb 2020 - now

  Full Stack Engineer

  Full System Cycle: Led the end-to-end development of robust software solutions, from conceptualization to deployment. Database Design: Designed and implemented MongoDB databases, ensuring efficient and scalable data management.Web Services Development: Developed web services using the Spring framework in Java, contributing to a responsive and high-performing backend.Frontend Development: Created dynamic and user-friendly front ends using ReactJS with NextJS, combining functionality with a seamless user experience.CI/CD Implementation: Implemented Continuous Integration and Continuous Deployment (CI/CD) pipelines, including unit testing, to ensure code quality and rapid delivery.Jenkins Setup: Configured Jenkins for streamlined CI/CD processes, optimizing development workflows and reducing deployment time.AWS Deployment: Orchestrated the deployment of software on AWS servers, utilizing cloud resources efficiently for scalable and secure application hosting.SSL Certificate Installation: Ensured secure data transmission by installing and configuring SSL certificates, enhancing overall system securityUtilized Python programming language to perform comprehensive data analysis tasks within a dynamic business environment. Responsibly sourced and aggregated data from various platforms and databases. Implemented robust data cleaning, formatting, and transformation procedures to ensure data accuracy and reliability. Generated critical reports and actionable insights through thorough data analysis, enabling informed decision-making processes within the organization. Demonstrated commitment to best practices in coding, ensuring the development of efficient, scalable, and maintainable code to support ongoing data analysis initiatives Show less