Shiv Kumar K.
Senior Mobile Architect | Flutter, iOS, Android | AI & LLM Systems
Senior Mobile Architect specializing in production Flutter, Native iOS (Swift), Android (Kotlin), and Full-Stack Node.js backends integrated with Generative AI. With over 18 years of engineering leadership and 600+ projects delivered, I build scalable, enterprise-grade mobile products designed for performance, clean architecture, and rapid user growth. Whether you need an MVP architected from scratch, legacy code refactored for speed, or an advanced AI workflow built into your mobile app, I deliver production-ready software without technical debt. Core Technical Stack & Architecture: Mobile Engineering: Flutter (Cross-Platform), Swift / SwiftUI (iOS), Kotlin / Jetpack Compose (Android), Offline-First Architecture, Real-Time WebSockets, CI/CD pipelines. AI & LLM Integration: Custom RAG architectures, OpenAI, Claude, and Gemini API integrations, on-device AI models, intelligent agents, document parsing, and computer vision. Backend & Cloud Infrastructure: Node.js, Next.js, Python, REST & GraphQL APIs, AWS (EC2, S3, Lambda, Rekognition), Firebase, and secure payment integrations (Stripe, Razorpay). Domain Expertise: Fintech & SaaS Platforms: Real-time financial tools, multi-tenant architectures, and payment gateway automation. Legal & Tax Automation: High-security AI document analysis, audit compliance, and structured data processing. Logistics & On-Demand Marketplaces: High-concurrency booking engines, geolocation routing, and vendor management systems. Why Clients Partner With Me: As a Top Rated Plus engineer with over a decade on Upwork, I act as an engineering partner rather than just an extra pair of hands. I prioritize clear communication, transparent milestones, and maintainable codebases that your internal team can easily scale. My work has been featured across global tech platforms including Forbes and HackerNoon. Have an upcoming project or need technical guidance on your architecture? Send an invitation or schedule a consultation, and let's discuss your product roadmap.