Jesus Castañeda Email & Phone Number

Zapopan, Jal., Mx

Remote

I worked for the IBM Finance Organization in collaboration with a global team (US and Mexico), where I made a positive contribution to the design and development of cloud applications and services, providing analysis tools for the Finance Department. I modernized a Lotus Notes application into a cloud-based version and developed an accountability app for managing storage reports. I addressed complex data querying and presentation challenges using technologies such as Java, JavaScript, Node.js… Show more I worked for the IBM Finance Organization in collaboration with a global team (US and Mexico), where I made a positive contribution to the design and development of cloud applications and services, providing analysis tools for the Finance Department. I modernized a Lotus Notes application into a cloud-based version and developed an accountability app for managing storage reports. I addressed complex data querying and presentation challenges using technologies such as Java, JavaScript, Node.js, HTML, XML, JSON, SQL, PostgreSQL, and MongoDB, alongside frameworks, tools, and orchestration technologies including Travis CI, Jest, React, jQuery, Docker, and Kubernetes.I worked under Agile methodology, collaborating daily with team members around the globe. I contributed to the modernization of legacy applications for my department.Some of my success stories include:-Improved the processing speed of an accountability app by 15% through SQL tuning, identifying, and excluding unnecessary data during SQL processing, which enhanced core backend performance.-Successfully implemented a CI/CD pipeline using IBM Cloud, migrating a legacy application to a cloud-based environment. This involved modernizing the infrastructure, automating build, testing, and deployment processes, and ensuring seamless integration with cloud services. The result was faster release cycles, improved code quality, and more efficient deployment workflows.Side project:Developer of an AI-powered chat solution to assist sellers with product specifications, sales reports, and inquiries leveraging IBM Cloud offerings to stay current with the latest technological advancements. Show less

Remote

Development Leader and Team Coach: Led the successful migration of React pages with a global team (US and India), managing both architectural design and component development to ensure smooth integration between backend and frontend systems. Strategically delegated tasks to maximize team productivity and fostered an environment where junior and mid-senior developers could learn and grow. Through proactive coaching and positive reinforcement, guided less-experienced team members in skill… Show more Development Leader and Team Coach: Led the successful migration of React pages with a global team (US and India), managing both architectural design and component development to ensure smooth integration between backend and frontend systems. Strategically delegated tasks to maximize team productivity and fostered an environment where junior and mid-senior developers could learn and grow. Through proactive coaching and positive reinforcement, guided less-experienced team members in skill development, ultimately enhancing team performance and promoting a collaborative atmosphere.Application Developer of IBM Technical Support Appliance (TSA) Web Components : Played an active role in developing and supporting the TSA’s web components—an appliance that improves IT uptime, streamlines inventory management, and reduces support gaps. Leveraged quick learning to adapt to new technologies on demand, such as HCM, and implemented security enhancements like Cross-Site Request Forgery prevention. Created unit tests for components and deployed solutions to customers, enhancing customer satisfaction and operational efficiency.Success stories:-Enhanced web page load speed by 15% by replacing outdated UI technology and implementing AJAX techniques to improve performance.-Led a successful globalization initiative to support translations and attract new customers. Organized regular meetings with the translation team, stakeholders, and designers, fostering a collaborative environment and implementing best practices for effective globalization.-Improved application performance by 10% by optimizing code logic for bottleneck requests, upgrading security measures to protect against cross-site request forgery attacks, and leveraging caching for i18n translation files. Show less

Guadalajara Area, Mexico

I worked as a Full Stack Developer for IBM's Microelectronics Division, collaborating with a global team in the U.S. and Mexico. I contributed to the design and development of microservices, providing analysis tools for the Microelectronics Division. I worked closely with wafer engineers to deliver services that helped optimize their workflows for handling wafers. I was the owner of several C++ components, which I redesigned and converted into a full set of web services that allowed… Show more I worked as a Full Stack Developer for IBM's Microelectronics Division, collaborating with a global team in the U.S. and Mexico. I contributed to the design and development of microservices, providing analysis tools for the Microelectronics Division. I worked closely with wafer engineers to deliver services that helped optimize their workflows for handling wafers. I was the owner of several C++ components, which I redesigned and converted into a full set of web services that allowed manufacturing engineers to modify, test, and monitor wafer production. Through careful planning, I completed the ongoing migration of legacy C++ tools to Java, enhancing the manufacturing process and enabling wafer production to be managed more efficiently in web applications. I resolved various issues, implemented new requirements, and enhanced MapServices by optimizing its logic. These efforts led to a more robust and efficient MapServices system, contributing to improved performance and overall functionality. I addressed complex SOAP service, and challenges using technologies such as C++, Java, JavaScript, Dojo Framework, HTML, XML, REGEX JSON, SQL. Show less

Guadalajara Area, Mexico

Worked with IBM ProtecTIER Storage as part of a global team in the U.S. and Israel, serving as QA for the deduplication functionality of ProtecTIER. This role involved executing functional verification tests and implementing automation techniques to ensure the product's reliability and efficiency. I enhanced my networking expertise through hands-on experience with the storage communication protocols, administering and monitoring network performance, and conducting security assessments for NFS… Show more Worked with IBM ProtecTIER Storage as part of a global team in the U.S. and Israel, serving as QA for the deduplication functionality of ProtecTIER. This role involved executing functional verification tests and implementing automation techniques to ensure the product's reliability and efficiency. I enhanced my networking expertise through hands-on experience with the storage communication protocols, administering and monitoring network performance, and conducting security assessments for NFS on Linux systems. Show less

Guadalajara Area, Mexico

Collaborated with a global team across Germany, the U.S., and Mexico to design, develop, and troubleshoot the Command Line Interface (CLI) for SoNAS, a Linux-based Network Attached Storage (NAS) solution. Utilized expertise in Java, Linux, and advanced storage technologies such as GPFS (now IBM Spectrum Scale) to create an enhanced CLI that improved system management capabilities, boosting overall efficiency and reliability. Addressed complex challenges involving networking, Java, shell… Show more Collaborated with a global team across Germany, the U.S., and Mexico to design, develop, and troubleshoot the Command Line Interface (CLI) for SoNAS, a Linux-based Network Attached Storage (NAS) solution. Utilized expertise in Java, Linux, and advanced storage technologies such as GPFS (now IBM Spectrum Scale) to create an enhanced CLI that improved system management capabilities, boosting overall efficiency and reliability. Addressed complex challenges involving networking, Java, shell scripting, and Bash.Managed the emulation of storage environments to support developer testing using a proprietary team framework built with VKM. This role involved creating and dismantling virtual entities, optimizing network performance, and overseeing memory management to ensure seamless operation of the virtual storage system. Show less

Guadalajara Area, Mexico

Collaborated with a global team across Germany, the U.S., and Mexico to design, develop, and troubleshoot the Command Line Interface (CLI) for SoNAS, a Linux-based Network Attached Storage (NAS) solution. Utilized expertise in Java, Linux, and advanced storage technologies such as GPFS (now IBM Spectrum Scale) to create an enhanced CLI that improved system management capabilities, boosting overall efficiency and reliability. Addressed complex challenges involving networking, Java, shell… Show more Collaborated with a global team across Germany, the U.S., and Mexico to design, develop, and troubleshoot the Command Line Interface (CLI) for SoNAS, a Linux-based Network Attached Storage (NAS) solution. Utilized expertise in Java, Linux, and advanced storage technologies such as GPFS (now IBM Spectrum Scale) to create an enhanced CLI that improved system management capabilities, boosting overall efficiency and reliability. Addressed complex challenges involving networking, Java, shell scripting, and Bash.Managed the emulation of storage environments to support developer testing using a proprietary team framework built with VKM. This role involved creating and dismantling virtual entities, optimizing network performance, and overseeing memory management to ensure seamless operation of the virtual storage system. Show less

Fresnillo Zacatecas

Worked as a Junior Developer within a collaborative 10-person team to develop a comprehensive web application project for a bakery. This project aimed to enhance the bakery's online presence and streamline customer interactions through a user-friendly digital platform. Leveraged Java, Hibernate, and the Struts framework within a Model-View-Controller (MVC) architecture to build robust and scalable application features.Despite limited support from senior developers, I independently… Show more Worked as a Junior Developer within a collaborative 10-person team to develop a comprehensive web application project for a bakery. This project aimed to enhance the bakery's online presence and streamline customer interactions through a user-friendly digital platform. Leveraged Java, Hibernate, and the Struts framework within a Model-View-Controller (MVC) architecture to build robust and scalable application features.Despite limited support from senior developers, I independently contributed to the development and completion of approximately 15% of the project’s content, demonstrating strong problem-solving skills and initiative. Show less

Master'S Degree, Computer Science

Bachelor Of Science - Bs, Computer Science