Senior mobile app developer specializing in scalable iOS, Android, React Native, Firebase, and AI-integrated systems for startups and growing businesses.
From MVP development to rebuilding unstable apps, Bill Vivino Technology helps businesses launch, stabilize, and scale modern mobile software systems.
Work directly with a senior software engineer experienced in mobile, backend, Firebase, React Native, AI-integrated applications, and large-scale software stabilization projects.
No bloated agency layers. No outsourced handoffs. Just direct technical leadership, system-level thinking, and clean execution.
Many startups and businesses reach a point where an app that initially worked well starts becoming increasingly unstable, expensive, or difficult to evolve.
Common issues include Firebase cost growth, unstable React Native architecture, app crashes, inconsistent backend systems, scaling problems, technical debt from rushed MVP development, and partially completed offshore builds.
Bill Vivino Technology specializes not only in building apps, but also in stabilizing, rebuilding, and scaling software systems after complexity arrives.
AI-powered virtual fitting room application built with SwiftUI, Firebase, and scalable mobile/backend architecture.
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Stabilized and delivered Unity-based augmented reality application for NASA’s STEM initiative.
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Mobile social platform for creatives built with SwiftUI, Firebase, scalable backend infrastructure, and real-time media systems.
Learn moreWhy experienced software engineers still matter in the era of AI-assisted development and vibe coding.
Read articleExploring how AI coding tools behave more like fast junior developers than fully autonomous senior engineers.
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Verified reviews from real projects
“Amazing in communication.”
Client · iOS App (Swift & Firebase)
“Went above and beyond.”
Client · Firebase Integration Revamp
“It was great working with Bill! Very pleasant and knowledgeable.”
Client · Language Learning App