I’m a software engineer who builds production-ready web and mobile applications, backend services, and cloud infrastructure. I’ve previously worked on enterprise REST APIs using the Vert.x toolkit at American Express, focusing on scalable, resilient service design and strong security and architecture practices. I also enjoy turning ideas into customer-facing products, owning much of the end-to-end lifecycle from UX and data modeling through release and growth. Currently, I’m building and launching consumer iOS mobile applications through my own company work. One recent project is Sparkz, a real-time couples bucket list app with shared experiences, photo memories, notifications, and subscription billing backed by Firebase (Auth, Firestore, Cloud Functions, Storage, App Check) and monitored with crash analytics. I’m also passionate about practical automation and tooling, including Python-based workflows for assembling short-form video content.

Caleb Wolin

I’m a software engineer who builds production-ready web and mobile applications, backend services, and cloud infrastructure. I’ve previously worked on enterprise REST APIs using the Vert.x toolkit at American Express, focusing on scalable, resilient service design and strong security and architecture practices. I also enjoy turning ideas into customer-facing products, owning much of the end-to-end lifecycle from UX and data modeling through release and growth. Currently, I’m building and launching consumer iOS mobile applications through my own company work. One recent project is Sparkz, a real-time couples bucket list app with shared experiences, photo memories, notifications, and subscription billing backed by Firebase (Auth, Firestore, Cloud Functions, Storage, App Check) and monitored with crash analytics. I’m also passionate about practical automation and tooling, including Python-based workflows for assembling short-form video content.

Available to hire

I’m a software engineer who builds production-ready web and mobile applications, backend services, and cloud infrastructure. I’ve previously worked on enterprise REST APIs using the Vert.x toolkit at American Express, focusing on scalable, resilient service design and strong security and architecture practices. I also enjoy turning ideas into customer-facing products, owning much of the end-to-end lifecycle from UX and data modeling through release and growth.

Currently, I’m building and launching consumer iOS mobile applications through my own company work. One recent project is Sparkz, a real-time couples bucket list app with shared experiences, photo memories, notifications, and subscription billing backed by Firebase (Auth, Firestore, Cloud Functions, Storage, App Check) and monitored with crash analytics. I’m also passionate about practical automation and tooling, including Python-based workflows for assembling short-form video content.

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Experience Level

Expert
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Intermediate
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Language

Javanese
Advanced

Work Experience

Founder & iOS Developer at Sparkz: Couples Bucket List App
January 1, 2025 - Present
Designed and built a subscription-based iOS app where couples create shared bucket lists, document completed experiences, and sync memories in real time. Architected the backend with Firebase Authentication, Firestore, Cloud Functions, Cloud Storage, App Check, and push notifications. Owned product lifecycle across UX, data modeling, release management, crash monitoring, experimentation, and growth integrations.
Software Engineer at American Express
April 1, 2024 - June 1, 2026
Developed enterprise REST APIs in Java using the Vert.x toolkit, emphasizing scalable and resilient service design. Collaborated within enterprise standards around security and scalability, applying foundational engineering practices spanning architecture through development.
Post-Production Team Member at Grand Canyon Education
January 1, 2021 - January 1, 2026
Produced and edited marketing, educational, and social media video content for university communications and student-facing channels. Partnered with creative teams to deliver polished content on recurring production schedules.

Education

Bachelor of Science in Software Development at Grand Canyon University
January 1, 2021 - January 1, 2024

Qualifications

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Industry Experience

Software & Internet, Education, Media & Entertainment