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Schedule Interview NowMy name is Javier R. and I have over 4 years of experience in the tech industry. I specialize in the following technologies: node.js, Amazon Web Services, JavaScript, Google Cloud Platform, Android, etc.. Some of the notable projects I’ve worked on include: Paragon, Buildpacks.io, LEGO® MINDSTORMS® EV3 App. I am based in Euless, United States. I've successfully completed 3 projects while developing at Softaims.
My expertise lies in deeply understanding and optimizing solution performance. I have a proven ability to profile systems, analyze data access methods, and implement caching strategies that dramatically reduce latency and improve responsiveness under load. I turn slow systems into high-speed performers.
I focus on writing highly efficient, clean, and well-documented code that minimizes resource consumption without sacrificing functionality. This dedication to efficiency is how I contribute measurable value to Softaims’ clients by reducing infrastructure costs and improving user satisfaction.
I approach every project with a critical eye for potential bottlenecks, proactively designing systems that are efficient from the ground up. I am committed to delivering software that sets the standard for speed and reliability.
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Uber Technologies
Paragon is an Integration-Platform-as-a-Service (iPaaS) designed to help developers embed, manage, and scale third-party product integrations faster. I served as a lead full stack engineer, architect, and DevOps, helping build the core platform through various stages. I designed and implemented backend services using NestJS and PostgreSQL, optimized frontend delivery with Next.js, and deployed infrastructure using AWS and Terraform.
Cloud Native Buildpacks transform application source code into container images in a secure, repeatable way — without requiring Dockerfiles. As a maintainer of the CNCF Buildpacks project, I contributed core features in Go, collaborated across global teams, and helped evolve the ecosystem alongside engineers from Google, RedHat, Microsoft, and Bloomberg. My work focused on build lifecycle logic, CLI tooling, and CI/CD automation improvements. I also participated in community RFCs and cross-org architectural discussions.
Developed the official Android companion app for LEGO® MINDSTORMS® EV3, enabling users to build, program, and control intelligent robots using a mobile interface. I implemented native Android features such as Bluetooth communication, real-time motor control, and drag-and-drop programming blocks using a visual programming interface. This app helped bridge physical robotics and mobile UX, serving tens of thousands of users worldwide. It was a flagship educational STEM tool used in classrooms and competitions globally.