Priyanshu Singh

I'm an iOS Engineer who enjoys building fast, scalable, and polished mobile experiences while exploring how Artificial Intelligence is reshaping software development. Over the past three years, I've developed production iOS applications using Swift, SwiftUI, and UIKit, working across networking, payments, mapping, real-time communication, cloud integrations, and scalable application architecture. I enjoy turning complex product requirements into intuitive user experiences while maintaining clean, maintainable codebases. Beyond traditional iOS development, I'm actively building AI-powered features using Large Language Models, AI APIs, and modern agent workflows to create smarter mobile experiences. My interests include on-device AI, Apple Intelligence, Core ML, Vision, natural language interfaces, retrieval-augmented generation (RAG), and AI-assisted productivity applications. I'm passionate about performance optimization, clean architecture, Swift Concurrency, accessibility, developer experience, and continuously learning emerging Apple technologies. I enjoy sharing technical insights with the developer community and constantly challenge myself by studying system design, algorithms, and large-scale mobile engineering practices.

• Built and maintained production iOS applications used by real customers.
• Developed features using SwiftUI, UIKit, Combine, and Swift Concurrency.
• Integrated secure payment systems including Apple Pay, PayPal, and payment gateway SDKs.
• Built location-aware experiences using Google Maps and Mapbox.
• Optimized application performance, memory usage, and user experience across multiple releases.
• Designed modular MVVM and Clean Architecture implementations for maintainable codebases.
• Built AI-powered mobile prototypes leveraging modern LLMs and intelligent workflows.
• Continuously explore Apple's latest frameworks including Metal, Core ML, Vision, and Apple Intelligence.

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Co-Tasker: Live iOS marketplace (4.9★, 23 German cities). Built booking flows, real-time WebSocket chat, Apple Pay/PayPal/MangoPay payments, deep linking, push notifications, and XCTest suites. Weekly App Store releases.
https://apps.apple.com/us/app/co-tasker/id1492445388
Silencio: Noise-mapping and crypto rewards app (4.8★, 1.6K+ ratings, US). SwiftUI + async/await sensor analytics, StoreKit IAP, CoreData caching, Firebase A/B testing.
https://apps.apple.com/us/app/silencio-measure-noise-earn/id6444363412
Multi-Agent AI Backend: Personal R&D. FastAPI + LangChain + ChromaDB RAG pipeline, multi-agent orchestration with Gemini API, deployed on GCP Cloud Run via Docker.