o 17+ years of experience building iOS apps – one of the original App Store developers (July 2008) o 22+ years successfully working with dozens of clients from my REMOTE office, as a telecommuter o 30+ Apps published in the Apple App Store and Enterprise o 25+ years of professional software development experience o 20+ years of experience with networking protocols & methodologies: REST, JSON, HTTP, TCP, UDP o 20+ years of experience with source control systems: Git, SVN, CVS, RCS, VSS, Perforce o Keen ability to distill complex concepts and systems into easily understandable terms o Outstanding analytical and problem-solving skills o Ability to work independently and as part of a team o Exceptional attention to detail, remarkably fast learner, excellent communication skills. o Personable, enthusiastic, conscientious. o Languages: Objective-C, C++, Swift, Java, Kotlin, JavaScript, PHP, Python, Perl, C, C#. o Operating Systems: iOS, watchOS, macOS, Windows, Linux, Unix. o IDEs: Xcode, Android Studio, Visual Studio, Eclipse. o Experience with API architecture design. o Strong understanding of multi-threaded and concurrent applications. o Expert understanding of all aspects of the iOS provisioning workflow. o Experience developing in an agile and test-driven environment. o Experience creating dynamic libraries with CocoaPods. o Experience with third-party libraries, APIs, and SDKs. o Hands-on experience with UIKit, CoreData, CoreGraphics, CoreAnimation, Cocoa design patterns. o Experience with a wide variety of analytics platforms, including Firebase (Google), Flurry (Yahoo), AWS, comScore, Nielsen, Adobe, MOAT (Oracle). o Ability to bring designer’s creations to life, with pixel-perfect implementations. o Experience in video and media-based development projects. o Working knowledge of Android development (Android Studio, Java, Kotlin, XML, Gradle, CircleCI).

👑 What can I help you build? - End-to-end mobile products from idea to App Store / Play Store - Native iOS (Swift/SwiftUI) & Android (Java/Kotlin) apps - MVP development for startups and founders - AI-powered mobile experiences - Firebase, Supabase & scalable backend integrations - REST APIs, third-party SDKs and payment systems - Maps, location services and real-time features - Pixel perfect implementation from Figma designs - App performance, architecture and codebase modernization - Publishing, store optimization and release management ❤️ My Mobile Tech Stack - iOS: Swift, SwiftUI, UIKit - Android: Java, Kotlin, Jetpack Compose - Backend: Firebase, Supabase, REST APIs - AI: OpenAI, Gemini, Claude - Payments & Subscriptions - Maps & Location Services - Analytics & Crash Reporting - Git, CI/CD & Release Automation - Clean Architecture & Scalable Codebases Hey, I'm Enes. I build mobile products, not just mobile apps. With 9+ years of experience and 6 years of freelancing, I've helped founders and startups launch and scale iOS and Android applications with a strong focus on product quality, performance, and user experience.

Looking for an expert-vetted app developer who doesn't just burn hours and waste your money? You've found someone with: - 11 years of experience delivering high-quality, successful apps to clients - a specialty in monetization and UX design, because I have my own revenue generating apps, and these are the biggest "money levers" - and, a habit of never pressuring you to do anything you don't need. If you are looking to: - create a new app, - make your existing app into a best-in-class beast, - or grow revenue with a subscription model, ... you are in the right place. I take a test-and-iterate approach to all things. We start with the smallest bet that we can make and see if it produces the desired results. Then, we learn what works and what doesn't; and make progressively bigger bets until we get the big payoff. This philosophy has led to successful app launches for me, my past employers, and most important of all, my past clients. Go for someone that will actually deliver, with full transparency in communication. Feel free to send an invite - after all, what's the worst that could happen?

Offering consulting & coaching to help turn YOUR APP IDEA into a growing BUSINESS 3,700+ Upwork Hours | ⭐️ Only 5-Star Reviews | 💯 100% Job Success | 👑 Top Rated Plus 🚀 MVP Creation & Launch 🪩 Mobile Boilerplate for MVPs (saves $$$) 💙 Cross-Platform Flutter Apps ⏰ Daily updates 🔥 Firebase | SwiftUI | Flutter 🎓 B.S. in Computer Programming 👫 Team Expansion & Hiring Support 🇺🇸 Texas-raised, based in the U.S., available worldwide "Josh ... [D]isplayed a great ability to bring my ideas into life... I'd definitely feel comfortable suggesting him to anyone, even my closest friends." ⭐️ 5-Stars | Cody | Tailored Trainer App "I’ve had some bad experiences with other devs but he [Josh] gave me faith in the freelancers realm" ⭐️ 5-Stars | Daquan | Featrrr App "Everything was completed to the highest possible standard and met every single requirement." ⭐️ 5-Stars | Mitch | EIHLFL App "Josh was friendly, professional and offered excellent advice. I started the contract with a smaller implementation and kept Josh on to complete the entire project." ⭐️ 5-Stars | Ruby | Good Chat App I specialize in end-to-end mobile app creation: from napkin sketch to App Store launch. Whether you’re a solo founder or a growing team, I’ll help you define your MVP, design a scalable architecture, and ship your first release. You’ll get daily updates, transparent progress, and a partner who treats your product like his own. Ready to turn your app idea into a business? Message me on Upwork to set up your consultation. Best 🍻, Josh B. *** Note: I am not accepting operational positions at this time, but I am available for consultations on how to get your product to market. 30-60 minutes with me can save you significant money / time down the road.

AI Development & Digital Transformation | Custom Software and Web Development | LLMs, RAG, Agentic AI, Full-Stack Developers| Expert-Vetted Top 1% I genuinely love helping businesses build kick-ass AI and custom software products and that obsession has earned Valere an Expert-Vetted Top 1% badge on Upwork, ranking us among the top 1% of software development talent on the platform. I'm Guy, CEO and founder of Valere. After 15+ years building, consulting, and launching consumer software products (including two acquisitions, one being a 15-million user app) I started Valere to help companies become AI-first through end-to-end engineering and transformation. We walk our clients through the whole process from AI planning and assessment, discovery, product design, technical solutioning, development, deployment, team adoption, AI upskilling/ AI coaching, and ongoing improvement. My ultimate goal is to help companies become AI-first by handling the full lifecycle and providing with tangible outcomes that we can all be proud of. There’s a lot of heart that goes into building impactful products. On paper, that looks like…300+ production deployments. $900M+ in measured client impact. 94% partner satisfaction. Clients include Fortune 500 companies, Johns Hopkins University, United Rentals, Mars, iHeartMedia, and CarShield. Client platforms we've built have helped raise $70M+ in venture and institutional funding. What my team builds: ✔ AI: Agentic systems, LLM applications, RAG pipelines, NLP, computer vision, ML, predictive analytics, generative AI, deep learning ✔ Web Development: React, Angular, Vue, Next.js ✔ Mobile Development: React Native, Flutter, Swift, Kotlin ✔ Back-end: Python, Node.js, .NET, PHP ✔ Cloud & DevOps: AWS, Azure, Google Cloud, Docker, Kubernetes ✔ Data: PostgreSQL, MongoDB, Snowflake, dbt ✔ Design: UX/UI, design systems, accessibility Who I work with: Venture-backed startups, PE-backed companies, mid-market businesses, and Fortune 500 enterprises across healthcare, finance, sports, fitness, education, and operations. Why clients choose us: ⭐️ AWS Advanced Tier & recognized AI/ML Partner ⭐️ Ranked #2 AI Services Provider on G2 a verified enterprise reviews ⭐️ Clutch Global Awards 2026 Top ML & AI Provider | Top 15 AI/ML worldwide ⭐️ Expert-Vetted Top 1% Agency on Upwork and featured in Upwork's 2023 Q2 Shareholder Report ⭐️ Selected for Upwork's Customer Advocacy Program, invited speaker at Upwork AI events ⭐️ The Manifest: Most Reviewed Developer 2024 ⭐️ Recognized Top 5 Trusted AI Agency by Tom Popomaronis Our AI transformation model: We transform companies into AI-first organizations through three tracks: Build (end-to-end AI and custom software development), Educate (AI workforce readiness via Valere Learning and General Upskilling through Evolve, our social platform), and Scale (proprietary products including Conducto, our agentic AI orchestration framework, and Dactic, our research automation platform). 225+ global professionals: AI Strategists, Data Scientists, Generative AI Developers, Agentic AI Engineers, UX Designers, Product Managers. U.S.-based oversight, 24/7 global coverage. Each client I work with gets decades of direct experience, through our engineers and through processes iterated on for YEARS across hiring, engineering, design, and QA. I'm OBSESSIVE about excellence. Anything less is unacceptable, which is why I only take on work we can execute at the highest level. If you have read this far, please note I appreciate you taking the time. I would love to learn about what you're building. Send me a message. Let’s chat!

Top Rated Plus developer with a 100% Job Success Score specializing in high-performance Android (Kotlin/Jetpack Compose) and iOS (Swift/SwiftUI) applications. I provide a competitive edge by integrating on-device AI - from custom fine-tuned YOLO models for real-time detection to local LLM integration for intelligent UX. Simultaneously, I offer expert-level React Native development for clients seeking high-intensity, scalable cross-platform solutions. I bridge the gap between complex AI logic and polished mobile UX. A recent production success includes a YOLO-based scanning app achieving a 100% detection rate and 99% OCR accuracy via TensorFlow Lite. Technical Expertise: - On-Device AI & Vision: Expert in custom YOLO, OpenCV, and Google ML Kit for real-time scanning and on-device LLM features. - Native Excellence: Senior-level SwiftUI and Jetpack Compose development focusing on clean MVVM/MVI architecture. - High-Intensity React Native: Building robust cross-platform apps with seamless native-module integrations and high-performance UI. - Backend & Cloud: Scalable infrastructure using AWS Lambda, Firebase, Supabase, GraphQL, and REST APIs. - Growth & Revenue: Integration of MMPs (AppsFlyer, Adjust) and analytics (Mixpanel, Customerio) to track revenue and user behavior. - Modernization: Expert at migrating legacy codebases to modern frameworks and optimizing app performance. I lead projects from the first line of code to App Store/Google Play deployment, ensuring every app I ship is production-ready, performant, and data-informed.

I help businesses build AI-first products, deploy Agentic AI systems, automate operations with n8n, and develop production-ready SaaS platforms that eliminate manual work, reduce operational costs, and accelerate growth. Over the past 15+ years, I've delivered enterprise software and digital transformation solutions for organizations including Telstra, Optus, Nestlé, Honeywell, Siemens, Kmart, Realestate Australia, Marvel Stadium, Royal Hobart Hospital, Monash University, Southern Cross Station, and numerous funded startups across Australia, Europe, North America, and the Middle East. Today my primary focus is designing and building AI Operating Systems—intelligent platforms where multiple AI agents collaborate across sales, marketing, customer service, finance, HR, operations, and executive reporting. 🤖 AI Agents • Agentic AI • AI Automation I build autonomous AI systems that reason, retrieve knowledge, call APIs, execute workflows, and complete business processes with minimal human intervention. AI Specialisations 🤖 AI Agents 🧠 Agentic AI 👥 Multi-Agent Systems 👨‍💼 AI Employees 💬 AI Copilots 🏢 AI Operating Systems ⚙️ AI Workflow Automation 📈 AI Business Automation 🔗 AI CRM Automation 🎯 AI SDR Systems 📋 AI Executive Assistants 📚 AI Knowledge Workers 🎧 AI Customer Support ☎️ AI Receptionists 📄 AI Document Processing 📧 AI Email Automation 📊 AI Reporting 🧩 AI Decision Intelligence 🧠 AI Frameworks & Models ✅ OpenAI GPT-5 ✅ Claude 4 ✅ Claude Code ✅ Google Gemini ✅ Vertex AI ✅ Azure OpenAI ✅ Anthropic API ✅ OpenRouter ✅ Ollama ✅ DeepSeek ✅ Mistral ✅ Llama ✅ Qwen ✅ Grok API ⚡ Agent Frameworks ✅ LangGraph ✅ LangChain ✅ CrewAI ✅ AutoGen ✅ LlamaIndex ✅ DSPy ✅ PydanticAI ✅ MCP (Model Context Protocol) ✅ AI Tool Calling ✅ Function Calling ✅ Structured Outputs ✅ Prompt Engineering 📚 RAG & Knowledge Systems ✅ Retrieval Augmented Generation (RAG) ✅ Hybrid Search ✅ Vector Databases ✅ Pinecone ✅ Weaviate ✅ Qdrant ✅ Supabase Vector ✅ pgvector ✅ Semantic Search ✅ Document Intelligence ✅ OCR ✅ Enterprise Knowledge Bases 🔄 Workflow Automation One of my core specialties. Platforms ⚙️ n8n ⚙️ Make ⚙️ Zapier ⚙️ Langflow ⚙️ Flowise ⚙️ Temporal ⚙️ Custom Workflow Engines Business Automation 💼 Sales 🤝 CRM 💰 Finance 📦 Procurement 👥 HR 🎯 Recruitment ❤️ Customer Success 🏭 Operations 🏗 Manufacturing 🏥 Healthcare ⚖️ Legal 🏠 Construction 🏢 Real Estate🎙 Voice AI Production-grade conversational AI systems. Platforms 🎙 Vapi 🎙 Retell AI 🎙 ElevenLabs 🎙 Twilio 🎙 Deepgram 🎙 Cartesia 🎙 OpenAI Realtime API 🎙 LiveKit 🎙 SIP 🎙 WebRTC ☎️ AI Phone Agents 📞 Outbound AI Sales 🎧 Inbound AI Receptionists 🏢 AI Call Centres 📅 Appointment Booking 🔐 Voice Authentication 🚀 AI Development Tools ✅ Cursor AI ✅ Claude Code ✅ GitHub Copilot ✅ Windsurf ✅ Replit Agent ✅ Lovable ✅ Bolt ✅ V0 ✅ Firebase Studio ✅ Supabase 💻 Full Stack Engineering Frontend 💠 Next JS 💠 React 💠 TypeScript 💠 Tailwind CSS 💠 ShadCN UI 💠 React Native 💠 Expo Backend ⚙️ Node JS ⚙️ Nest JS ⚙️ FastAPI ⚙️ Python ⚙️ Laravel ⚙️ .NET ⚙️ GraphQL ⚙️ REST APIs Databases 🗄 PostgreSQL 🗄 Supabase 🗄 MongoDB 🗄 Redis Cloud & DevOps ☁️ AWS ☁️ Azure ☁️ Google Cloud ☁️ Docker ☁️ Kubernetes ☁️ Vercel ☁️ Cloudflare ☁️ GitHub Actions ☁️ CI/CD 🔗 Business Integrations 🔗 Stripe 🔗 HubSpot 🔗 Salesforce 🔗 Zoho CRM 🔗 Pipedrive 🔗 QuickBooks 🔗 Xero 🔗 Shopify 🔗 WooCommerce 🔗 Microsoft 365 🔗 Google Workspace 🔗 Slack 🔗 Microsoft Teams 🔗 Twilio 🔗 Calendly 🔗 Notion 🔗 Airtable 🔗 ClickUp 🔗 Monday 🔗 Custom APIs 🏗 What I Build 🚀 AI Operating Systems 🚀 AI SaaS Platforms 🚀 Startup MVPs 🚀 Multi-Tenant SaaS 🚀 AI Dashboards 🚀 Executive Reporting Platforms 🚀 CRM Platforms 🚀 Customer Portals 🚀 Internal Business Platforms 🚀 Marketplace Applications 🚀 AI Sales Platforms 🚀 AI Marketing Systems 🚀 AI Analytics 🚀 AI Procurement 🚀 AI Recruitment 🚀 AI Compliance 🚀 AI Document Intelligence 🏆 Why Clients Hire Me ⭐ 15+ Years Enterprise Experience ⭐ CTO-Level Technical Leadership ⭐ Enterprise Architecture & Solution Design ⭐ AI Strategy & Product Thinking ⭐ Business Process Automation ⭐ Secure AI Architecture ⭐ Production-Ready Code ⭐ Scalable Cloud Infrastructure ⭐ Fast AI MVP Delivery ⭐ Excellent Communication ⭐ End-to-End Project Ownership 🌍 Industries 🏪 Retail 🛒 E-commerce 🏥 Healthcare 🏗 Construction 🏢 Real Estate 🏭 Manufacturing 💳 Finance 🚚 Logistics ⛏ Mining 💼 Professional Services 🏛 Government 🎓 Education 💡 Looking for help with... ✨ AI Agent Development ✨ Agentic AI Solutions ✨ n8n Automation ✨ Workflow Automation ✨ AI Operating Systems ✨ Voice AI ✨ AI SaaS Development ✨ Startup MVP Development ✨ RAG & Knowledge Bases ✨ AI CRM Automation ✨ AI Customer Support ✨ AI Sales Automation ✨ AI Executive Dashboards ✨ AI

Top 1% Expert-Vetted Freelancer on UpWork ✅ Hi 👋 I’m Gabe. I’m an AI-native senior product engineer who uses modern AI tools to ship production-grade software faster — without sacrificing architecture, quality, or long-term maintainability. I have 10+ years of experience building and scaling apps for Fortune 500 companies and startups, especially in high-stakes systems where timelines are tight or codebases already exist. My stack includes Cursor, Replit, OpenClaw, and LLMs — used where they actually make sense to move faster and reduce bugs. Everything I ship is grounded in clean architecture and production-ready code. What I Bring to the Table 🧠 AI-Native Development – Faster iteration without sacrificing quality 📱 Mobile & Full-Stack Expertise – React Native (iOS & Android), TypeScript, React, Next.js, Firebase, Vercel, Railway 🚀 MVPs & Prototypes – From idea → working product quickly 🛠 Fixing & Scaling Existing Apps – Notifications, performance, migrations, stability 📞 Clear Communication – Realistic estimates, proactive updates, no surprises Why Work With Me? ✅ Top 1% on Upwork (Expert-Vetted) ✅ Fortune 500 + high-traffic production experience ✅ Strong ownership and long-term thinking ✅ Trusted to solve hard problems, not just ship features Testimonials ⭐ “Gabe was incredible. He went above and beyond.” ⭐ “Great estimates, great communication, and consistently high-quality work.” If you're building something that matters, send me a message describing the problem. I'll let you know within 24 hours if I'm the right fit.

Are you tired of low-quality code, over-billed hours, missed deadlines, and extremely buggy features? Want to work with an experienced engineer who is as passionate about your project as you are and can seamlessly translate your ideas into an app? Let’s chat! Who am I? My name is Dinko, an expert mobile & TV solutions engineer. My goal is to create the app you are dreaming about with the least amount of friction possible. I cannot help everyone, but you may be a right fit if you think: 🔸 ”I have a brilliant idea, but I don’t know how to code” 🔸 “My product is already established, I need someone with deep technical knowledge to take it to the next level” 🔸 “The app is full of bugs, I want them gone” 🔸 “This seems to be a job for an experienced software architect so I can scale later” 🔸 “I want someone who can communicate effectively, work alone and make this happen” Working with me will: ✅ Ease your mind when it comes to code quality ✅ UI will be pixel-perfect and seamless ✅ The app will have minimal bugs ✅ Communication will be clear and frequent ✅ Robustness and scalability will be achieved by using the best architecture approaches and an appropriate amount of automatic tests ✅ Speed of development will be at peak level by leveraging the latest mature technologies and tools I’m not everyone’s cup of tea, so here are some signs we might not be a great fit: ✖ You have a tight budget and are looking for a cheap developer ✖ You like to push people to work faster and then complain about the quality ✖ You like to have 100% control over every detail of the project I’ve previously been engaged with projects in the various domains like: 📢 Marketing 🛒 E-commerce 🏋🏽‍♀️ Fitness and health 👥 Social Media 👔 Human Resources 🌐 Internet of Things and more.. Services I provide: ➡️ Native app development for Android using Kotlin and iOS using Swift ➡️ Hybrid app development using Flutter and Dart ➡️ Backend development using Firebase, Supabase and Dart Ready to know what it feels like to work with an engineer who truly cares about your success? ___________________________________________________ Related keywords: Android developer, iOS developer, Web developer, Mobile developer, Kotlin, Xcode, Swift, SwiftUI, Jetpack Compose, GraphQL, REST API, Android SDK, Android Studio, Git, Flutter, Flutter Developer, Riverpod, GPS, Bluetooth, Native, Hybrid, Hybrid Mobile Development, Back end development, AWS, GCP, Firebase, Supabase, Full-stack development, Smart TV app development, Android TV app development, Apple TV app development, SaaS expert, IoT, B2B, B2C, Full-cycle product development

I've shipped production systems that serve 20M+ users, generated $1.5M ARR, and helped a startup raise $7.4M — all using the same AI-augmented engineering approach that makes my team 3–5x faster than traditional agencies. I work with funded startups and growing companies that need senior technical leadership and fast execution — not just a developer for hire. ───────────────────────────── WHAT I ACTUALLY DELIVER ───────────────────────────── AI Systems in Production Custom AI agents, MCP integrations, RAG pipelines, multi-agent orchestration. Not demos — live systems handling real workloads. Built with Claude, LangGraph, FastAPI, Python. Example: MCA underwriting engine that replaced manual analyst review for a financial company. CTO-as-a-Service Architecture review, tech roadmap, team assessment, technical debt audit. You get a clear PDF report and a prioritized action plan — not a slide deck. Packages from $250 (Express Audit) to $1,000 (CTO Day embedded with your team). Engineering Acceleration for Series A/B Your team is too small, hiring takes 6 months, investors are pushing. We bridge the gap: embedded AI-native team, weekly demos, fixed-scope milestones. You stay in control, we execute fast. Vibe Coding Rescue AI-generated codebase that doesn't hold up in production? I audit it, find the structural issues, and fix them. Saved multiple clients from expensive rewrites by catching architecture problems early. ───────────────────────────── PROOF — WHAT WE'VE SHIPPED ───────────────────────────── Stats.fm — 20M+ users worldwide. Flutter, multi-platform. I was Flutter Lead Developer. Production-stable across 6 build configurations. IRNBY Training Club — $1.5M ARR, 73k users, 207k orders. I was CTO for 3 years. Zero major outages. 5–8 person team delivering like 15–20. Rhino — Premium taxi app in São Paulo. Our Flutter MVP went from idea to investment pitch. Result: $7.4M raised. DevForge — AI orchestration platform. 6 agents working as a team. 26,000 lines of code. Built solo in 7 weeks with Claude Code. MCA underwriting AI. On-premise Ollama. Bank statement analysis. HFT Trading System — AI-powered decision engine for high-frequency trading. 50ms model inference latency. C++ core with custom inference pipeline. Built for sub-millisecond trading environments where model latency is a competitive edge. AnimaFest — Idea to production in 1 day. Not a prototype — a live SaaS platform with real users. ───────────────────────────── HOW I WORK ───────────────────────────── Fixed-price milestones. You know what you're getting, when, and what it costs. No hourly surprises. Every engagement starts with a scoped Discovery Sprint or Tech Audit — so we both understand the problem before committing to a solution. My team is small and senior. No juniors padding hours. No account managers adding overhead. ───────────────────────────── If you're building something that needs to work at scale, or you've inherited a codebase that's becoming a liability — message me. I'll give you a straight answer on what's actually needed.