Hello, I'm Jer Catallo
I engineersystems that staysecure at scale.
Software Engineer
6 years and 4 months of experience
I build front-end applications and back-end systems for web products, turning complex requirements into software that serves users and supports business goals. From user experiences to APIs and services, I approach each project with system design, scalability, performance, maintainability, and security in mind.
Current focus
System design & scalability
- Scalable by design
- System design
- Performance minded
- Secure by practice
- Maintainable
- People centered
- Front-end Applications
- Back-end Systems
- Distributed Systems
- DevOps Literate
- Versed in Cloud
About
Engineering with curiosity, discipline, and care.
I build software that matters, from front-end experiences to back-end systems, designed to scale, stay reliable, and serve the people who use it.
whoami
My journey began over six years ago, driven by a desire to build software that matters. As a Software Engineer, I work across front-end applications, back-end systems, and distributed systems, including software for enterprise devices. From translating complex requirements into maintainable software to designing for scalability, performance, and resilience, I ship practical solutions with security in mind.
To me, engineering means balancing thoughtful innovation with disciplined execution. I build APIs and full-stack platforms with system design, scalability, and maintainability in mind. I am also DevOps literate and versed in Cloud concepts, which helps me understand how these systems are delivered and operated.
My drive doesn't clock out when the sprint ends. As a lifelong learner, I use personal projects as a sandbox to strengthen my skills, explore new technologies, and expand my capabilities beyond my current role. I bring this depth and curiosity to every challenge, turning experimentation into practical skills for solving increasingly complex problems.
developer: name Jer Catallo, role Software Engineer, experience 6 years and 4 months, focus System design, scalability, and secure engineering
mindset: approach Secure, reliable, performance-minded, driven_by Curiosity & continuous improvement, belief Technology should serve people
mission: goal Build reliable systems that matter, impact Secure, scalable, maintainable, status Building, Learning & Growing
Journey
Built through curiosity, opportunity, and steady growth.
The story behind the developer.
One step per milestone
Early 2005s
Internet Cafe Kid
Grew up in a family internet cafe. Played video games mostly RTS and FPS, maintained game installations, and set up LAN networks so friends could play together, which fueled my love for technology.
2017
Started Coding
My grandfather sparked the fuel to aim higher. He inspired me to channel my curiosity into building a better future. Wrote my first lines of code during a high school web development competition, turning my tinkering habit into a real passion for building things from scratch.
2019
High School Valedictorian
My passion for learning affected the way I lived, extending into my academics as my momentum reached a high point. Supported by encouraging teachers who nurtured my growth, I graduated as high school Valedictorian, solidifying my academic foundation while continuing to grow my development skills.
2020
First Fulltime Tech Job
Eager to get hands-on experience, my hard work paid off when I landed my first full-time tech job during my first year of college. I am deeply thankful to the company and the people who saw something in a first-year student and gave me the opportunity to officially begin my career as a developer.
2023
Computer Science Degree
Graduated with a Bachelor of Science in Computer Science while working at my second company. Balancing my studies with real-world projects truly solidified my technical skills and changed how I approach code. I'm also incredibly grateful to the company and the people who saw my potential, creating an environment where I have grown into a more capable and competent senior software engineer.
Today
Building & Growing
Today, I'm building at the intersection of hardware and software as a Software Engineer at meldCX. Creating enterprise kiosk and IoT solutions has allowed me to leave a footprint on a global scale. I'm dedicating this chapter to deepening my expertise in modern software architecture and building secure, resilient applications.
With gratitude
The people and faith behind every milestone.
None of my achievements would have been possible without the unwavering support of my parents. From day one, they believed in me and gave me the foundation to chase what I love. Their encouragement is one of the biggest reasons I keep pursuing my dreams. Above all, I am grateful to our Dear God, who has been with me since day one, guiding my path and giving me the strength to keep going.
A foundation for what comes next.
Assessment
Seniority Assessment
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