[Note: We, (Agency) do not entertain Outside UpWork Communication] Our team specializes in delivering end-to-end AI Chatbot solutions, ensuring scalability, reliability, and business impact. Check out our Agency Profile and our hourly Rate. We are currently occupied with ongoing projects, and individual developer support is not available at this time. 📌 Serious Clients only – Please submit your project requests through my Agency profile for consideration. 17+ years of experience. Degree - Bachelor Of Engineering, Industrial experience 17+. I am an expert in creating Full Stack Development. Additionally, I have submitted many apps to the App Store, with complex interfaces, extensive web service communication, and multimedia content. I have a strong knowledge of basics, such as common design patterns(MVC), programming languages( Java, TypeScript), and Standard). Also have great experience in a various number of third-party SDKs, Google Firebase, Facebook, PayPal, Stripe, Google Maps, ad networks, etc. Skills & Experiences: ✅ Languages: Java, Kotlin ✅ Cybersecurity ✅ Tools: Git, Bitbucket, Jira, Confluence Trello, Git Branching & Merging, PR generation & PR Review ✅ Agile methodology - Scrum, Sprint Board, Sprint Planning & Sprint Review ✅ RESTful Applications ✅ Maps & Locations ✅ Push Notification ✅ iTunes connect - TestFlight release and App store submission. ✅ Payment integrations like Stripe etc ✅ Facebook, Twitter, and Google Integration ✅ Codebase: MVC, MVVM ✅ Knowledge of JavaScript, HTML, and CSS, React Native & NodeJS. Expertise in following technologies: ✅ Android (Kotlin) ✅ Java ✅ Node ✅Angular I will provide you with good quality and satisfactory work with your approval. At last, my client's satisfaction is most important to me. Our Agency successfully delivered 50+ IOS projects live and we are offering them a maintenance support. Agency/Team expertise - Additional team skills- IOS (swift/c++), flutter, react native, Game Development [3D] Thanks for visiting my profile. [No Outside UpWork Communication] Hourly Rates are different for Game Development [3D]

Hello, Thank you for reading my profile. I'll be brief as I know your time is very valuable. I'm Aurimas, currently based in South East Asia (Vietnam - Hong Kong). Throughout my career, I've worked in several countries (Denmark, the Netherlands, China, Hong Kong, Vietnam). My working experience covers working in small and huge (corporate) style of companies. Within 10+ years of experience, I've mostly specialised in mobile development and its UX. I hold SCRUM certification and used to work as a SCRUM Master, as well as Product/Project Manager for several years, therefore management processes are not new to me. I used to manage teams of 20+ people - onshore and offshore. To summarise - with hiring me, you will not only get a developer, whom will follow direction of your choice, but also a person, whom if needed, can advice you on optimised prioritisation of the tasks, faster delivery in term of business value, optimised overall development approach and optimised user journey from UX standpoint. More detailed skill list: ⭐️ Dart and Flutter and Android - Mobile and Web Applications; ⭐️ Python and Flask/Cloud Functions and Typescript - Backend services and customised APIs; ⭐️ Blockchain - Ethereum, Solana ecosystem crypto wallets and NFTs; ⭐️ Docker and Google Cloud - Deployment of solutions anywhere. ⭐️ Product Manager/Product Owner - Product roadmap, goals and strategy; ⭐️ Project Manager - Managing the project in-side-out from goals, scopes, tasks, deadlines and deliverables, etc. ⭐️ SCRUM Master - Established SCRUM related ceremonies and improved each iteration speed and Agility within the team. In case of any doubts in my skills, please have a look at what my previous clients tell about me or send me a message - I'm happy to schedule a call and answer your questions and concerns. Wish you a wonderful day!

Welcome to my Upwork profile. I am Navroze, a a US-based full-stack web & mobile app developer with over 13 years of experience. I specialize in designing and developing high-performance web and mobile applications for startups, small businesses, and enterprises across the United States. I help businesses transform ideas into scalable, production-ready digital products—whether it's developing a platform from the ground up, modernizing legacy systems, or optimizing and scaling existing applications. My development approach focuses on clean architecture, performance optimization, security, and seamless user experience—ensuring solutions that are not only functional but also built for long-term growth. 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 • Custom Web Applications (React.js, Vue.js, AngularJS) • Backend Development (Node.js, Laravel, PHP, .NET, Python) • RESTful APIs & Third-Party Integrations • WordPress (Custom Themes & Plugins) • E-commerce & SaaS Platforms • Admin Panels, CRM & Business Systems • MongoDB, MySQL Database Design 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Cross-Platform App Development using Flutter • iOS & Android Application Development • API Integration & Cloud Connectivity • Secure Authentication & Payment Integrations • Performance Optimization & Testing 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 & 𝐒𝐲𝐬𝐭𝐞𝐦 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 • NetSuite, HubSpot, Aspire, Smartlink • Payment Gateway Integration • CRM & ERP System Connectivity 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈’𝐯𝐞 𝐖𝐨𝐫𝐤𝐞𝐝 𝐖𝐢𝐭𝐡: - E-commerce & Marketplaces - Healthcare & Fitness Apps - Financial & Blockchain Apps - Social Media & Event Platforms - Geo-location & Location-based Services - Live Media Streaming & Instant Messaging - Wearable Tech & Custom Apps - Stripe Integration & Payment Gateways 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? ✔ US Time Zone Availability ✔ Clear & Professional Communication ✔ Clean, Scalable & Maintainable Code ✔ On-Time Delivery ✔ Long-Term Technical Partnership If you're looking for a reliable US-based developer who understands both technology and business goals, I’m here to help you build powerful, scalable web and mobile applications. Let’s bring your vision to life.

Hi, I'm James - a Full stack Mobile & AI Application Developer, builds cross-platform apps for iOS, Android, and the web. I am good at creating smart, scalable applications powered by real-world AI and cloud integrations. I've designed, built, and launched multiple production-grade apps - all developed from the ground up. My work covers every stage of the process: concept design, backend development, API integrations, cloud deployment, and App Store/Play Store publishing. I do best at: - Cross-Platform Mobile Development using Flutter, React Native and Firebase - AI Apps & Integrations (OpenAI, Claude AI, Google Cloud Vision, Sentiment Analysis, n8n automation, make.com) - Cloud Architecture & APIs (Google Cloud, AWS, BigQuery, REST APIs, Node.js, Next.js) - End-to-End Project Delivery - from prototype to production, including marketing, SEO and app monetization I love building applications that make technology more useful, accessible, and even a little fun. Whether it's an AI-powered news app, a local events platform, or an automation agent, I focus on reliability, performance and great UX

REAL AI DELIVERY. NOT JUST A BUZZWORD. Real AI delivery is different. It is knowing when RAG is the right call and when fine-tuning is. It is building LangChain pipelines that do not collapse when the context window fills. It is connecting n8n workflows to live business systems without creating a fragile mess that breaks at 2am. That is what I do. And I have been doing serious backend delivery for 25 years before AI became a buzzword. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 17 countries. $360M in cost savings. 139 clients. 100% Job Success Score. Top Rated Plus. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD ▸ AI automation systems — LangChain, RAG, LLM orchestration, n8n ▸ Python, Django, FastAPI backends built for real traffic ▸ ERPNext and Frappe implementations, custom apps, data migrations ▸ Legacy and brownfield rescue where previous teams left things broken ▸ API integrations that survive production ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BEFORE YOU SHORTLIST ANYONE The real question is not whether you can find someone cheaper. It is whether you can afford to get this wrong one more time. If you are sitting on a broken build, a half-finished AI system, or a codebase that scares you — that is exactly where I start. Let's Talk

Transform your business operations with intelligent AI Agents and automation solutions. With 14+ years of experience building enterprise-grade software solutions, I specialize in creating custom AI Agents and automations that drive real results for businesses. 🎯 What I Do Best: 1) Design and implement AI Agents 2) Create automated workflows that integrate with your existing systems 3) Develop custom AI solutions that reduce costs and increase efficiency 🚀 Featured Projects & Results: ✅ Real Estate Lead Generation System 1. Built custom AI Voice Agent handling 1000+ calls daily 2. Increased qualified lead generation by 40% 3. Reduced response time by 65% 4. Automated appointment scheduling with 95% accuracy ✅ Healthcare Patient Management 1. Developed intelligent scheduling system with AI Agents 2. Reduced no-show rates by 35% 3. Automated 80% of routine appointment confirmations 4. Integrated with existing EMR systems ✅ E-commerce Customer Service Created multilingual AI Voice Agent handling customer inquiries Automated 70% of common customer service requests Increased customer satisfaction scores by 45% Seamless integration with existing CRM 🛠️ Technical Expertise: AI Stack: Openai models, Claude, Gemini, Rag pipleine AI Voice Platforms: VAPI ai, Retellai, Blandai, Airai Voice Technologies: ElevenLabs, Whisper, Deepgram Automation Tools: n8n, Make, Zapier CRM Integration: Salesforce, HubSpot Custom API Development & Integration 💡 Specialized Services: ✔️ AI Agent Development 1. Custom agent design and implementation 2. Natural language processing optimization 3. Voice personality customization 4. Multi-language support ✔️ Automation & Integration 1. End-to-end workflow automation 2. CRM and business tool integration 3. Custom API development 4. Real-time analytics and reporting ✔️ Business Process Optimization 1. Call center automation 2. Lead qualification systems 3. Appointment scheduling 4. Customer service automation 🌟 Why Work With Me: 1. Deep expertise in AI technologies and automation 2. Focus on measurable business results 3. Clear communication and project management 4. Fast implementation and deployment 5. Ongoing support and optimization 📈 Recent Success Stories: "JC transformed our outbound calling process. His AI Agent solution increased our contact rate by 45% and saved us $12,000 monthly in operational costs." Mark R Real Estate Agency "The AI Agent JC built for our medical practice is incredible. It handles scheduling, confirmations, and basic patient inquiries perfectly. Our staff can now focus on more important tasks." - Dr. Sarah L Medical Director 🔍 My Approach: 1. Understand your specific business needs 2. Design custom AI solution 3. Develop and test extensively 4. Deploy and monitor performance 5. Optimize based on real-world data 6. Provide ongoing support Ready to revolutionize your business with AI Agents? Let's discuss your needs and create a solution that delivers real results.

I'm a mobile technical lead with 12+ years building, stabilizing, and shipping production apps across Android, iOS, Flutter, and React Native. Teams bring me in when an app is unstable or a release is stuck — I inherit messy codebases, drive down crash rates, unblock release pipelines, and ship SDKs other developers build on. Recent work: • Yahoo Fantasy Sports — redesigned core user-facing screens and refactored from MVP to MVVM, cutting the crash rate to target. • Portal (Web3 wallet) — led the Android and React Native SDKs that other teams integrate. • Unified Remote — Android app with 10M+ installs worldwide. • Plume — B2B Android app with multiple product flavors used across 10+ businesses. Native depth, cross-platform range: • Android — Kotlin, Java, Jetpack Compose, Coroutines, Clean Architecture (Google Certified Associate Android Developer). • iOS — Swift, shipped multiple apps end-to-end from Figma to App Store and post-release maintenance. • Flutter — Riverpod, GetX, GoRouter, Dio. • React Native — app development and SDK maintenance. • Firebase — Auth, Firestore, Remote Config, Cloud Messaging, Crashlytics, and on-device ML. I write clean, maintainable code, take full ownership of delivery, and build stable, performance-focused apps that hold up in production. If you need someone who can both lead the architecture and ship the hard parts, let's talk.

Coding is bae! and I love my bae more than anything. I have completed Master of Computer Applications and I'm a senior Full Stack Developer with extensive experience in building high quality products. I have 12+ years of experience. My experiences range building different applications. I'm a professional developer to provide a seamless experience to my clients. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. Let's assess your project: 1. Do you have a project scope written down? with detailed deliverables? user stories? acceptance criteria defined? That's the first thing we'll talk about: SCOPE. I need to know the goal to get you there. 2. Do you have a deadline defined? for each deliverable? and a responsible? That's second on the agenda. 3. Do you have regular status meetings? PM tools? communication tools? organized folders? That's 3rd: I'll create structure and build habits. Let's get it done! I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with.

Le-Roy is a seasoned technology leader with a track record of delivering software solutions across security, construction, mixed reality, and video games. He’s passionate about crafting software that feels exceptional; an approach recognized through Apple feature placements and exclusive invitations from Google and Unity.

Need a senior architect who can build it, scale it, and make it beautiful, with AI woven through the whole thing instead of bolted on the side? That's what I do. I'm a principal full-stack architect and polyglot engineer, 15+ years taking products from idea to production across fintech, health-tech, cybersecurity, blockchain, defense, and AI. 💡 Work clients know me for: - A $500M real-time fintech trading platform (web + mobile) - A $100M real estate CRM built from scratch; the firm was acquired by Cushman & Wakefield - Solana indexing infrastructure handling $1–3T in daily transaction volume - A live algorithmic quant trading platform running real money on a tier-1 broker - Federated-learning threat detection for an AI cybersecurity platform - Solo-replaced a 10-developer offshore team on a national assistive-communication app 🤖 AI / LLM, where much of my recent work lives: - Production LLM systems with structured outputs, guardrails, and audit logging in regulated fintech - Multi-model pipelines (Claude, Whisper, Gemini, OpenAI, ElevenLabs) chosen deliberately for cost, latency, and accuracy - MCP and agentic tooling, with official Anthropic certifications behind it - A production AI agent and grounded voice-and-chat assistant on frontier models (Gemini, Claude, GPT), with real tool-calling into live equipment data, RAG over the actual manuals, a scorer, and an adversarial grounding eval harness that gates every deploy so it cannot hallucinate to users - Architecting specialized-model training on proprietary field data: fine-tuning small open models (Llama/Qwen) for domain tasks like fault diagnosis and failure prediction, with labeled eval sets and an eval-gated deploy pipeline - The discipline that keeps AI output reliable and affordable in production, not just impressive in a demo 🛠 Stack: - Full-stack: TypeScript/React/Next.js, Node/Deno, Python, Go, Rust, Ruby/Rails, PHP/Laravel - Mobile: Flutter, React Native, Swift, Kotlin - APIs & data: GraphQL, REST, PostgreSQL, MySQL, MongoDB, Redis - Cloud & infra: AWS, GCP, Supabase, Docker/K8s, CI/CD - AI: Claude, Gemini, GPT, MCP, multi-model orchestration - Security: PCI DSS remediation, federated learning, RLS/RBAC, signed webhooks 🎯 Clients hire me when: - They're launching something ambitious and want it architected right the first time - Their legacy codebase is a mess and they need someone who can inherit it and stabilize it fast - They want AI built into the product correctly, by someone who's shipped it in production - They want someone who thinks like an engineer, a strategist, and a founder I also direct and design large-scale sculptures and immersive environments. Fluent in product vision, UX/UI, and creative direction, with experience in Rhino3D, Unity, CAD, TouchDesigner, and Adobe. Request my design portfolio directly if you're curious. 📩 Message me and tell me what you're building. I'll tell you how I'd make it better.