Vlad Z.

Top 1% Expert-Vetted on Upwork | 17+ years in software development I build production-ready iOS and Android applications, from consumer and business apps to technically complex products involving AR, LiDAR, GIS/GNSS, AI, computer vision, and connected hardware. My experience covers the full mobile development lifecycle, from architecture and product development to store release. I’m particularly strong when a project involves complex technical requirements, real-world data, hardware integrations, offline workflows, or spatial computing. I also help companies take AI-generated, vibe-coded, or prototype-stage applications and turn them into reliable production products. This includes reviewing and refactoring AI-generated code, fixing architecture and performance issues, implementing missing functionality, integrating APIs and AI services, improving security and scalability, and preparing applications for production release. Some examples of my work: • Utility mapping and field applications combining GNSS/RTK with centimeter-level positioning accuracy, AR visualization, offline workflows, and geospatial data collection • LiDAR-based 3D scanning and reconstruction systems for infrastructure and construction projects • RoomPlan applications for room scanning, measurement, spatial capture, and 3D reconstruction • AR applications using image and object detection, tracking, anchors, and real-world 3D content • Mobile applications integrating BLE/IoT devices, sensors, beacons, background synchronization, and real-time data • AI-powered mobile products using computer vision, LLMs, speech recognition, OCR, object detection and tracking, and on-device ML • AI-assisted and AI-generated applications taken from prototype or MVP stage to stable, maintainable production software • Consumer and business applications built and shipped for iOS and Android CORE EXPERTISE Native iOS & Android Swift, SwiftUI, UIKit, Kotlin, iOS SDK, Android SDK, App Store & Google Play delivery AR / LiDAR / Spatial Computing ARKit, ARCore, RealityKit, RoomPlan, LiDAR, point clouds, 3D reconstruction, image and object tracking, Apple Vision Pro GIS / GNSS / Field Applications GNSS, RTK, offline maps, geospatial data pipelines, custom map layers, QGIS-compatible workflows, field data collection AI / Computer Vision Computer vision, LLM integration, Core ML, TensorFlow Lite, OpenAI, OCR, object detection and tracking, TTS/STT, AI-generated code review and refactoring, AI prototype-to-production development BLE / IoT / Connectivity Bluetooth Low Energy, IoT sensors, LoRa, beacons, WebSockets, background sync, real-time communication I can take ownership of the full technical scope, including architecture, development, integrations, testing, deployment, and release, or work alongside your existing engineering team. Have a mobile app to build, an AI-generated project that needs to become production-ready, or a technical problem your current team can't solve? Send me a message with a short description of the project. I'll take a look and tell you how I'd approach it, what I'd prioritize first, and where I see the main technical risks.