Crafting Scalable Solutions Daily

Jer Carlo Catallo

Full-Stack Developer

5+ years building secure, scalable web, IoT & NextGen Kiosk solutions

Passionate about building robust, secure systems that serve thousands of users worldwide. Specializing in Full-stack development, DevOps, and Application security across healthcare, finance, government, and IoT ecosystems. I learn by doing, documenting every solution, every optimization, and every security best practice.

Years

Experience

Certifications

Verified credentials

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About Me

I'm a Full-Stack Developer currently at meldCX, where I turn complex challenges into practical, scalable, and secure solutions. With over 5 years of experience, I've built systems that serve thousands of users across healthcare, finance, government, and IoT sectors.

My expertise spans modern web technologies, DevOps practices, and API development. I focus on creating applications that are not only functional and performant but also secure, maintainable, and scalable for long-term success.

As a philomath, I embrace continuous growth as both a professional principle and a personal way of life. With the right tools and mindset, I can take on any challenge, even those beyond my current skill set.

What I Specialize In

Full-Stack Development

Building secure end-to-end solutions with modern frameworks, RESTful APIs, and responsive interfaces. Expertise in React, Next.js, Node.js, and scalable backend architectures with security best practices.

DevOps

Building and automating deployment pipelines on AWS and GCP. Implementing CI/CD systems, containerization with Docker & Kubernetes, and automated testing to deliver reliable, scalable, and secure deployments.

Application Security

Building defensible architectures with threat modeling, secure coding, and hardening by default. Emphasis on input validation, least privilege access, secrets hygiene, and continuous vulnerability remediation throughout the application stack.

Featured Projects

Latest development projects and technical implementations

Western Union Self-Service Money Transfer Kiosk

2023-01-15

Developed self-service money transfer kiosk application for Western Union with secure payment processing, ID verification, and transaction management capabilities.

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meldCX Hotel Check-in/Check-out Kiosk

2022-05-01

Built frictionless self-service kiosk for hotel guest management with RFID keycard dispensing, secure payment processing, ID scanning, and loyalty program integrations.

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