Hi, I'm EJ Frias.
Full-stack Senior Software Engineer and Hybrid Mobile App Developer. I build scalable mobile and web platforms, lead high-performing engineering teams, and turn complex ideas into reliable, production-ready systems.
About
A decade of building and scaling.
I'm a Senior Software Engineer with over a decade of experience building and scaling digital platforms across mobile and web.
I specialize in cloud-native architectures on AWS, full-stack development using Node.js and modern frontend frameworks, and leading engineering teams to deliver high-impact products.
Recently, I've been focused on improving developer experience, observability, and integrating AI into real-world workflows.
Expertise
What I focus on.
Cloud-Native on AWS
Designing architectures that scale — from serverless workloads to container-based platforms.
Full-Stack Engineering
Node.js, TypeScript, and modern frontend frameworks — from API to interface.
Hybrid Mobile Apps
Cross-platform mobile development that ships fast without sacrificing native feel.
Engineering Leadership
Building and mentoring high-performing teams that ship reliably and grow together.
Developer Experience & Observability
Reducing friction and surfacing signal — so teams ship with confidence.
AI in Real-World Workflows
Integrating AI into products and engineering processes — practical, not hype-driven.