18+ years building iOS apps across enterprise VoIP, automotive, retail, and on-device AI/ML.
As an engineer who builds AI-enabled, production-grade iOS systems, I specialize in both on-device AI/ML integration and API-based AI architecture. My work ranges from enterprise VoIP applications (like Avaya Workplace/Spaces SDK) to building hybrid AI pipelines, such as the Cloud/Local/Hybrid provider architecture driving AIAnalyzer.
I prioritize developer experience and application health. By architecting systems that are robust and highly observable, I recently achieved a 99% crash-free rate at Neurealm and drove a 30-70% build time reduction through advanced CI/CD automation at Cognizant.
Crash-free rate achieved at Neurealm, up from 96%, through rigorous stability engineering.
Build time reduction driven by advanced CI/CD automation initiatives at Cognizant.
A Swift static analysis CLI distributed via Homebrew. Detects architectural smells (God Objects, Large Classes, High Method Density) with AI-powered fix suggestions across Cloud, Local, and Hybrid modes.
An iOS app recognizing faces in real time using Apple Vision and a Core ML FaceNet model for embeddings (cosine similarity). Registers faces on-device with zero cloud dependency. Built with SwiftUI and MVVM.
View on GitHubA full-stack, fully local AI system I'm building as a way to preserve my own knowledge, voice, and memory for future generations of my family. SwiftUI iOS front end backed by a FastAPI + local MLX inference engine (Qwen2.5-14B), running entirely on-device — no cloud dependency, no third party holding this data. Built with careful owner/visitor memory isolation, so the system knows the difference between me and someone interacting with it after I'm gone.
View on GitHubAn iOS app for OCR extraction and transliteration of the Meitei Mayek script. Includes a custom-built from-scratch glyph recognition pipeline since Apple Vision has no native support for this script.
View on GitHubA macOS security scanner for Apple Silicon. On-demand scanning covering SHA-256 hashing, code signature validation, persistence scanning, YARA integration, and FSEvents monitoring.
View on GitHubAn iOS app for controlling a robot over Bluetooth Low Energy, demonstrating hardware/IoT integration alongside mobile AI work.
View on GitHub"Johnson is a very sound iOS lead. His technical grip as well as leadership skills are the right combination to get projects done... He has excellent communication skills with the team as well as with the customer."
I'm currently looking for Staff, Lead, or Principal iOS engineering opportunities, and open to freelance engagements. My inbox is always open.