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I’m a developer with over 7 years experience in building apps - as an indie-developer and for small and medium sized businesses. I specialize in iOS apps written in Swift and SwiftUI. I learned most of my skills on my own, but have been able to prove and expand them in a professional environment. I'm just starting on Upwork and would be happy to get some interesting and lasting gigs and connections here. Check out my work and see if we are a match!

I'm the Android developer who built in-vehicle navigation for Harley-Davidson and a 100,000+ download app with on-device AI. Need the hard parts done, Bluetooth/BLE, on-device AI, or native speed that can't lag? That's my lane. 8+ years, Kotlin-first. See exactly how I work in my Portfolio below: iThing, a live open-source IoT dashboard (99.6% Kotlin, Clean Architecture, Jetpack Compose), and Ambicam, my 100,000+ download surveillance app on Google Play. I also ship cross-platform with Kotlin Multiplatform (KMP), so you get iOS and Android from one codebase. Most clients come to me with one of these: • A Bluetooth/BLE device that pairs but won't stay connected or sync reliably • An app that needs AI running on the device, not a slow round-trip to the cloud • A native Android app that lags, drains battery, or crashes under load • Two separate budgets for iOS and Android when one shared codebase would do SERVICES I PROVIDE BLE & IoT-Connected Apps • BLE / Bluetooth device pairing, reconnection and background sync • Zigbee, TCP/IP and WiFi smart-device integration • Smart-home, wearable, healthcare and industrial IoT apps • Device data synced to your backend over REST API and Firebase • Native hardware integration that no-code tools and AI cannot fake On-Device AI & Computer Vision • On-device ML with TensorFlow Lite (data never leaves the phone) • Face recognition, number-plate / object detection, OCR (OpenCV) • Camera pipelines and real-time inference • Gemini and Claude API integration for cloud LLM features Native Android App Development • Kotlin, Jetpack Compose, Clean Architecture, MVVM, Coroutines, Flow • REST API integration, Firebase, Room, offline-first apps • Performance tuning, JNI/NDK and C/C++ for the critical paths • Automotive-grade, latency-sensitive, real-time systems • Full lifecycle: architecture to Play Store launch Kotlin Multiplatform (KMP) Cross-Platform • One shared Kotlin codebase for iOS and Android (60-95% shared) • Compose Multiplatform for shared UI • Roughly 35-50% cheaper than two native teams • Migrating an existing Android app to KMP PROVEN RESULTS (see for yourself) • iThing, a live open-source IoT dashboard (in my Portfolio): 99.6% Kotlin, Clean Architecture + MVI, Jetpack Compose, Hilt • Ambicam, a 100,000+ download Android surveillance app I built and maintain solo, on Google Play (iOS in Swift too) • In-vehicle navigation for Harley-Davidson (TomTom Navkit): led 5 engineers, 25% latency reduction • On-device face + number-plate recognition (TensorFlow Lite + OpenCV) and native C/C++ live streaming via JNI/NDK • BLE, Zigbee, TCP/IP and WiFi integrations for government-scale tracking and attendance hardware • First Upwork contract closed at 5.0 with all five client-insight endorsements HOW I WORK Communication: I reply within a few hours, give you honest timelines, and tell you the moment something changes. No silent weeks. Quality: Clean architecture, code that respects the Android lifecycle and device memory, tested on real hardware (not just an emulator). Where I fit: A senior Android app developer based in Munich, fluent in English and Hindi, conversational German, comfortable in EU time zones and GDPR-aware by default. TECHNOLOGY Native: Kotlin, Java, Jetpack Compose, Clean Architecture, MVVM/MVI, Coroutines, Flow, Hilt Cross-platform: Kotlin Multiplatform (KMP), Compose Multiplatform AI/ML: TensorFlow Lite, OpenCV, on-device ML, Gemini API, Claude API Native/Perf: JNI/NDK, C/C++, real-time streaming, performance profiling IoT/Hardware: BLE, Bluetooth, Zigbee, TCP/IP, WiFi, smart-device integration LET'S BUILD IT If your project involves a Bluetooth or IoT device, on-device AI, a performance-critical Android app, or a Kotlin Multiplatform build, send me the details. I will reply within a few hours with an honest read on feasibility, the approach I would take, and a realistic timeline. What is the hardest technical part of your app, the piece you are least sure can be done? Tell me that first. - Khyati Keywords: Android App Developer, Kotlin Developer, Mobile App Developer, Jetpack Compose, Kotlin Multiplatform (KMP), BLE Developer, IoT App Developer, On-Device AI, TensorFlow Lite, OpenCV, Native Android, Android NDK, Clean Architecture, Firebase, REST API, Cross-Platform App Developer, iOS Developer.

I build iOS apps that work, scale, and help businesses move faster. Give me an app idea, a broken product, a Figma design, or an existing codebase, and I’ll turn it into a clean, stable, App Store-ready iOS product. My focus is simple: build mobile apps that are not only technically solid, but also useful for real users and aligned with the business behind them. If you send me an invitation or message, I can review your idea, app, or requirements and explain how I may be able to help. A little more about me: I help founders, startups, and businesses build, improve, and scale iOS applications using Swift, SwiftUI, UIKit, APIs, AI integrations, Firebase, fintech flows, subscriptions, maps, and scalable mobile architecture. Whether you need to launch an MVP, rebuild an existing app, integrate AI features, improve UX/UI, fix bugs, connect a backend, add payments, or prepare your app for the App Store, I can help turn the technical chaos into a working product. Over the past 7 years, I’ve worked on educational startups, AI micro-projects, fintech apps, marketplace products, and client mobile applications. Selected work includes: • AI-powered faith app with Bible reading, religious learning chat, daily tasks, and marketplace-focused engagement • Online banking app with money transfers, currency exchange, in-app messaging, card issuing, UI direction, and UX improvements • Footnotes, a London city exploration app built around places, stories, local context, and map-based discovery What I can help with: • MVP iOS app development • Swift and SwiftUI development • UIKit development and legacy code improvement • AI app development and ChatGPT / OpenAI API integration • FinTech app development • Marketplace app development • SaaS mobile app development • API integration and backend connection • Firebase, Firestore, authentication, and real-time database logic • In-App Purchases, subscriptions, and monetization • MapKit, CoreLocation, location-based apps • App Store release and TestFlight setup • Bug fixing, refactoring, performance improvement, and feature development I don’t just write code from a task list. I help translate business goals into clear product logic, clean user flows, and scalable iOS architecture, so your app is easier to launch, test, improve, and grow. If you’re looking for an iOS Software Engineer who understands Swift, SwiftUI, UIKit, AI apps, fintech products, marketplaces, SaaS apps, API integrations, and mobile product development, send me a message. 🔧 EXPERTISE: iOS Development | iOS App Development | Swift | SwiftUI | UIKit | Mobile App Development | AI App Development | OpenAI API | ChatGPT Integration | FinTech App Development | Marketplace App Development | SaaS App Development | Firebase | Firestore | REST API Integration | API Integration | In-App Purchases | Subscriptions | MapKit | CoreLocation | MVVM | Clean Architecture | App Store Submission | TestFlight | Bug Fixing | Refactoring | UI/UX Improvements | Mobile App Architecture | AI-Driven apps | map-based apps | Mapbox | MapKit | OpenAI API | Apple Intelligence

Hello! I’m Alex, a Lead Software Engineer with extensive experience in leading teams, driving processes, establishing architecture, and delivering top-notch projects 🚀 I started my career in IT in 2015. Since then, I have brought both technical mastery and collaborative experience to help businesses build comprehensive mobile solutions. 𝗪𝗵𝗮𝘁 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘀𝗮𝘆: "𝘖𝘭𝘦𝘬𝘴𝘢𝘯𝘥𝘳 𝘸𝘢𝘴 𝘰𝘶𝘵𝘴𝘵𝘢𝘯𝘥𝘪𝘯𝘨, 𝘢𝘯 𝘦𝘹𝘤𝘦𝘭𝘭𝘦𝘯𝘵 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘦𝘳 𝘢𝘯𝘥 𝘤𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘰𝘳, 𝘢𝘯𝘥 𝘨𝘳𝘦𝘢𝘵 𝘷𝘢𝘭𝘶𝘦." "𝘈𝘭𝘦𝘹 𝘪𝘴 𝘢 𝘩𝘪𝘨𝘩𝘭𝘺 𝘴𝘬𝘪𝘭𝘭𝘦𝘥 𝘱𝘳𝘰𝘧𝘦𝘴𝘴𝘪𝘰𝘯𝘢𝘭 𝘸𝘪𝘵𝘩 𝘨𝘳𝘦𝘢𝘵 𝘢𝘵𝘵𝘦𝘯𝘵𝘪𝘰𝘯 𝘵𝘰 𝘥𝘦𝘵𝘢𝘪𝘭 𝘢𝘯𝘥 𝘢 𝘧𝘰𝘳𝘸𝘢𝘳𝘥-𝘵𝘩𝘪𝘯𝘬𝘪𝘯𝘨 𝘢𝘱𝘱𝘳𝘰𝘢𝘤𝘩. 𝘏𝘦 𝘦𝘯𝘴𝘶𝘳𝘦𝘴 𝘵𝘩𝘦 𝘱𝘳𝘰𝘫𝘦𝘤𝘵’𝘴 𝘧𝘰𝘶𝘯𝘥𝘢𝘵𝘪𝘰𝘯 𝘪𝘴 𝘴𝘵𝘳𝘰𝘯𝘨 𝘢𝘯𝘥 𝘣𝘶𝘪𝘭𝘵 𝘧𝘰𝘳 𝘵𝘩𝘦 𝘭𝘰𝘯𝘨 𝘵𝘦𝘳𝘮." I help businesses and startups bring their ideas to life and engage more effectively with their customers by developing mobile solutions 📱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗽𝗿𝗼𝗰𝗲𝘀𝘀: - Discovery/Requirements: 🔍 💭 - Estimation: ⚖️ 📊 - Sprint Planning: 📅 ⭐ - Development: 💻 ⚙️ - Testing: 🔬 ✅ - Release: 🚀 🎯 - Maintenance: 🔧 🛠️ 💬 Ready to discuss your next project? Don't hesitate to send a message! Expertise Keywords: Swift, SwiftUI, UIKit, CoreData, SwiftData, Mobile UI Design, UX for Mobile, In-App Purchases, Adapty, Qonversion, AdMob, RevenueCat, Stripe, CoreLocation, MapKit, Combine, RxSwift, GoogleMaps SDK, Apple Maps, MVVM, Cocoapods, Swift Package Manager, TestFlight, AppstoreConnect, AVFoundation, iPhone Camera API, Push Notifications, Firebase, Native Apps, Mobile App Testing, SDK Integration, Mobile Analytics, MVP Development, Wireframe, iOS Development, Fullstack Developer, Stripe SDK, Agile, QA, Testing, Unit Testing, Project Specification, Apple's App Store Guidelines, Interface Design Principles

Need a backend that doesn't break when you scale? I'm a Principal Engineer and Ex-CTO who's built systems handling 25K requests/second for fintech platforms with 1M+ users. Raised $1M for my own startup. I know what it takes to ship fast without cutting corners. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱: → APIs & backends in Go, Python, and TypeScript → SaaS platforms from MVP to production scale → AI integrations & LLM-powered features (RAG, agents, OpenAI/Anthropic) → Cloud infrastructure on AWS & Kubernetes → Integrations (Stripe, Shopify, third-party APIs) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗥𝗲𝗰𝗲𝗻𝘁 𝗿𝗲𝘀𝘂𝗹𝘁𝘀: → $4K Shopify product sync delivered in 2 days → Call tracking SaaS full backend in 5 days → 30% infra cost reduction | 55% faster API latency → 1200+ GitHub stars on open-source tools ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ I write code that's simple, tested, and maintainable. Not clever puzzles for the next developer. ✉ Send your requirements. I respond in minutes.

I don’t just write code - I build high-performance systems that run themselves. In a market saturated with "95% done but stuck" projects, I provide the senior-level architectural leadership needed to cross the finish line. My experience as a Lead Engineer at Tier-1 tech giants and gaming companies taught me exactly what works in production. Clean architecture ensures your system won't collapse under its own weight. Rock-solid DevOps guarantees flawless deployment. I combine both to turn experimental AI into a reliable, high-performance tool. 𝗧𝗵𝗲 𝗣𝗵𝗶𝗹𝗼𝘀𝗼𝗽𝗵𝘆: 𝗖𝗹𝗮𝘀𝘀𝗶𝗰𝗮𝗹 𝗖𝗼𝗿𝗲. 𝗔𝗜-𝗗𝗿𝗶𝘃𝗲𝗻 𝗩𝗲𝗹𝗼𝗰𝗶𝘁𝘆. You get a product designed with a "Total Ownership" mindset. I ensure the business logic is solid (Full-Stack), the intelligence is cutting-edge (AI), and the foundation is unbreakable (DevOps). I can either: ✫ Design architecture and launch your project from the ground ✫ Or push your existing unready project to production 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁: 1. Scalable Architecture & Full-Stack Development Clean, maintainable code is non-negotiable. I design systems that handle real-world loads and evolve predictably. ◆ Backend: Node.js, Python (FastAPI, Django), Go, Microservices. ◆ Frontend: React, Next.js, Mobile (Cross-platform). ◆ Data: PostgreSQL, MongoDB, Redis, NATS/RabbitMQ. 2. Production-Ready DevOps & Infrastructure I eliminate "works on my machine" chaos. Your infrastructure is treated as code - automated, observable, and cost-optimized. ◆ IaC & Orchestration: Terraform, Pulumi, Kubernetes (EKS/GKE), Docker. ◆ CI/CD & GitOps: GitHub Actions, GitLab CI, ArgoCD (Zero-downtime deployments). ◆ Observability: Prometheus, Grafana, ELK, Datadog (Full-stack monitoring). ◆ Security: IAM, VPCs, Secret Management, Disaster Recovery. 3. AI & Intelligent Agents (The Multiplier) I integrate AI where it adds measurable ROI, not just hype. ◆ LLM Orchestration: LangChain, LangGraph, CrewAI (Multi-agent workflows). ◆ State-of-the-art Models: GPT-5 (early access), Claude 4, Gemini 3, Llama 4. ◆ Knowledge Layers: RAG systems, Vector DBs (Pinecone, Weaviate, Qdrant). ◆ Automation: Using AI to accelerate development while ensuring classical engineering keeps it stable. 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺: ◆ Cloud: AWS (Certified-level expertise), GCP, Azure. ◆ AI Stack: OpenAI, Anthropic, Google Vertex AI, LlamaIndex, ChromaDB. ◆ Reliability: Chaos engineering, Blue-Green deployments, Multi-region High Availability. 𝗪𝗵𝘆 𝗛𝗶𝗿𝗲 𝗠𝗲? ✔️ Senior Ownership: I’ve led teams at scale. I keep my work done and make you happy. ✔️ Full Lifecycle View: I see how a line of code in the frontend affects the RDS cost and the LLM response time. ✔️ Cost Optimization: I build with your burn rate in mind - choosing tools that scale without exploding your cloud bill. ✔️ Absolute Transparency: Clear requirements → Architecture Roadmap → Iterative 2-week sprints. 𝗛𝗼𝘄 𝗪𝗲 𝗚𝗲𝘁 𝗦𝘁𝗮𝗿𝘁𝗲𝗱 ① Discovery: We audit your vision, current bottlenecks, and growth goals. ② The Blueprint: Within 1-2 days, you receive a precise technical plan (Code + Infra + AI integration). ③ Execution: We hit the ground running with a GitOps-based workflow and transparent updates. I'd be happy to discuss the idea and help determine the best technical approach.