Hire the Best JavaScript Developers in Gilgit, PK

Are you searching for a mobile app developer who specializes in cross-platform app development, iOS app development, and Android app development? I’m a Mobile App Developer with **5+ years of experience** and have successfully worked with **7+ clients**, building high-quality, scalable, and user-friendly **iOS and Android applications** using React Native, Expo, JavaScript, TypeScript, and Node.js. I help businesses and startups create powerful mobile apps that run smoothly across devices, leveraging API integration, AI integration, Firebase, Redux, UI/UX optimization, push notifications, payment gateway integration, and app store optimization (ASO). My apps are performance-driven, visually engaging, and tailored to your target audience, whether for eCommerce, healthcare, social media, or on-demand services. 𝗠𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ✅ Mobile App Development ✅ Cross-Platform App Development ✅ iOS App Development ✅ Android App Development ✅ React Native Development ✅ AI Integration in Mobile Apps ✅ API Integration ✅ Firebase Integration ✅ Payment Gateway Integration (Stripe, PayPal) ✅ Push Notifications (FCM) ✅ UI/UX Optimization ✅ App Store Optimization (ASO) ✅ Mobile App Prototyping ✅ Mobile App Performance Optimization ✅ Redux for State Management ✅ RESTful API Development ✅ Social Media Integration ✅ Third-Party SDK Integration ✅ Mobile App Testing & Debugging ✅ Mobile App Maintenance & Support ✅ ChatGPT API Integration ✅ AI Chatbot Integration ✅ Machine Learning in Mobile Apps ✅ Location-Based Services (GPS Integration) ## 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? * 3+ years of experience building scalable React Native mobile applications for startups and businesses. * Successfully collaborated with **5+ clients**, helping them launch, improve, and maintain production-ready mobile applications on both Android and iOS. * Hands-on experience developing and maintaining **live production apps**, including bug fixing, performance optimization, feature enhancements, API integrations, and app store deployments. * Strong expertise in AI integration, Firebase, REST APIs, payment gateways, push notifications, and scalable mobile app architecture. * Focused on writing clean, maintainable, and high-performance code while delivering intuitive user experiences. * Proven track record of client satisfaction: * *"Sameer is extremely talented. I always look to him for my toughest assignments and he delivers every time."* * *"Great talent. Writes clean and neat code that is robust and easy to maintain."* * Reliable, communicative, and committed to delivering projects on time using agile development practices. 𝗧𝗼𝗼𝗹𝘀 𝗜 𝗨𝘀𝗲 ✅ React Native, Expo, JavaScript, TypeScript ✅ Firebase, Firestore, Google Cloud Functions ✅ Redux, Redux Toolkit, Context API, ✅ Android Studio, VS Code ✅ Git, GitHub, ✅ Stripe, PayPal (Payment Gateway Integration) ✅ AI Integration using ML Kit, OpenAI APIs ✅ App Store Connect, Google Play Console, App Store Optimization (ASO) Ready to transform your idea into a high-performance, scalable, and user-friendly mobile application? Whether you need cross-platform app development, iOS app development, Android app development, or AI integration in mobile apps, I bring the technical expertise and creative vision to build apps that deliver results. From seamless API integration, Firebase backend, and push notifications to app store optimization (ASO) and ongoing support, I’m here to ensure your app stands out in a competitive market. Let’s collaborate to build a mobile solution that drives growth, engagement, and success. Mobile App Developer | Cross-Platform App Development | React Native Expert | iOS App Development | Android App Development | TypeScript | JavaScript Developer | API Integration | Firebase Integration | Redux State Management | Push Notification Setup | Payment Gateway Integration | Stripe Payment Integration | PayPal Payment Integration | App Store Optimization | Google Play Store Submission | Apple App Store Submission | Scalable Mobile Apps | Custom Mobile App Development | AI Integration in Mobile Apps | Machine Learning in Apps | Chat App Development | Social Media App Development | Ecommerce Mobile Apps | Healthcare App Development | On-Demand App Solutions | Real-Time Mobile App Development | Mobile App Debugging | Mobile App Performance Optimization | App Prototype Development | Mobile MVP Development | App Analytics Integration | Mobile App Maintenance | App Version Control | App Release Management | Mobile Backend Integration | Agile Mobile App Developer | Mobile App Code Optimization | Mobile App Troubleshooting | Mobile App Conversion Optimization | App User Retention Strategy | Mobile App Architecture Design | Mobile App Growth Strategy

I have over 7 years of experience as a highly-skilled creative software engineer. My line of work is web/mobile development, which I truly enjoy. The main benefit of my work is its quality. Superiority is invariably the outcome of lofty goals, authentic endeavors, astute guidance, and deft execution. EXPERTISE ◾ AI Automation ◾ Text-to-Speach/Speach-To-Text ◾ OpenAI/LLM ◾ React JS ◾ Next JS ◾ Remix JS ◾ React - Redux ◾ React - Mobx ◾ React - Context API ◾ Redux - Saga ◾ React Native ( IOS and Android ) ◾ JavaScript ◾ TypeScript ◾ GraphQL ◾ Node JS ◾ Twilio Programable Video ◾ HTML5 ( all specs ) ◾ Design (Figma | Adobe XD) ◾ Adobe ◾ jQuery ◾ CSS / Material-UI/Ant-Design/Bootstrap / LESS / SCSS / Flex box ◾ Pixel-perfect conversions Throughout this time I have developed over 30+ web Applications for both startups and established businesses from all over the world. I have developed a range of web-solutions for clients from all over the world. I have built customized websites to the highest specifications and carry out routine site maintenance. My biggest strengths are the ability to think out of the box, strong work ethic, Flexible to negotiate, rigid in following deadlines and guaranteed service. I can perform your tasks with 100% quality and you'll be satisfied with the results for sure. Kind Regards, Fareed M.

Hi, I'm Faraz a senior AI Engineer with over 6 years of experience. I build production-ready AI applications powered by RAG, LLMs, and AI Agents that integrate seamlessly into your products and workflows. 🚀 What I Build 🔸RAG Pipelines & LLM Systems: Custom RAG pipelines using LangChain, LlamaIndex, and vector databases (Pinecone, Weaviate, ChromaDB) for intelligent document search, semantic retrieval, and LLM-powered workflows. 🔸LLM-Powered Chatbots: AI chatbots and "chat with your data" solutions — trained on your PDFs, databases, and documents. Built with OpenAI, LangChain, and custom prompt engineering for accurate, reliable responses. 🔸 AI Agent Development: Autonomous AI agents that go beyond answers — they take actions, call APIs, manage workflows, and integrate into your existing systems. 🔸AI Integration in Web Apps: Adding LLM-powered features into existing SaaS platforms, dashboards, and web applications React, Next.js, Node.js, Express, PHP, FastAPI, and MongoDB. 🔸AI Cost Optimization: Reducing token usage, improving context design, and selecting the right models to cut your AI running costs without sacrificing performance. 🛠️ My AI & Full-Stack Stack • AI & LLM: LangChain, LlamaIndex, OpenAI, RAG Pipelines, Prompt Engineering, LLM Evaluation, Semantic Search, Semantic Chunking, Vector Databases • Vector DBs: Pinecone, Weaviate, ChromaDB • Backend: Node.js, Python, FastAPI, Express, PostgreSQL • AI: OpenAI, LangChain, LlamaIndex, Pinecone, Weaviate • DevOps: REST APIs, CI/CD Pipelines, GitHub, Deployment Workflows 📦 What I've Shipped 🤖 AI-Powered Learning Assistant — RAG chatbot for an ed-tech platform (AKF Learning Hub) ⚡ AI Strategy Copilot — LLM-powered decision tool for U.S. Electric Cooperatives 🛒 Full-Stack Multi-Vendor E-Commerce Marketplace — MERN stack, production-ready 📄 Built a RAG-powered document search platform that reduced document lookup from minutes to seconds while improving answer accuracy. 🎯 Who I Work With Businesses and developers who need an AI systems expert not just someone who calls an API. If you need a RAG pipeline, LLM-powered chatbot, AI agent, or AI integration built properly from day one! let's talk. 💬 Let's Make It Practical Tell me what you're building. I'll give you: A clear RAG pipeline or LLM architecture plan Honest assessment of your AI approach Realistic timeline and cost estimate No fluff. No long back-and-forth. Just results. Skills to Tag AI Developer, Full-Stack developer, LLM, RAG, LangChain, databases (PostgreSQL, MySQL), RESTful APIs, full-stack testing (backend unit/integration tests, frontend tests), CI/CD pipelines, version control (Github), and deployment workflows, Vector Databases, Pinecone, Weaviate, LangChain, LlamaIndex, Semantic Search, Semantic Chunking, LLM Evaluation, OpenAI, Prompt Engineering, Node.js, Express, React.js, Svelte, PHP developer and FastAPI

✅ +𝟭𝟱,𝟬𝟬𝟬 hours of industry experience ✨ "𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀" (3+ years) 💪 Proven track record of collaborating with enterprise-level companies I am a Senior Full-Stack AI Developer and Software Architect with over 8 years of experience, specializing in bridging deep backend engineering with intelligent systems. I lead the full lifecycle development of robust, scalable SaaS applications and LLM integrations. My core expertise is leveraging Python, Go, and Rust to design and build high-performance backend systems and APIs that power modern web applications (Frontend experience includes Next.js/Svelte). I have successfully managed projects from small proof-of-concepts to large, fully containerized applications with automated CI/CD pipelines. I possess extensive knowledge in Cloud-Native Architecture and DevOps, specifically using AWS and Terraform/Terragrunt for Infrastructure as Code (IaC) and automating deployments with Docker, Kubernetes, and Jenkins. Along with my technical skills, I offer strong leadership, problem-solving, and strategic communication abilities, focused on guiding teams to rapid, successful MVP delivery. I am a highly motivated professional, driven by continuous personal development in the pursuit of improving my expertise in applied AI. I'm excited to learn about your project and discuss how I can leverage AI/LLM integrations to enhance your product. Feel free to contact me between 1pm-10pm 𝗚𝗠𝗧+𝟱.

🧠 5+ years as a Full-Stack Developer & AI Engineer 🏆 Upwork Top Rated with 100% Job Success Score 🤖 AI & Automation: RAG Systems, AI Chatbots, AI Agents, Agentic Workflows, n8n, LLM Integrations, OpenAI APIs ⚙️ Frontend: React.js, Next.js, TypeScript, Tailwind CSS, Material UI, Responsive UI/UX 🛠 Backend: Node.js, Express.js, REST APIs, GraphQL, API Integrations, Microservices 🔐 Authentication: JWT, OAuth, Role-Based Access Control, Secure Sessions 🗄 Databases: MongoDB, PostgreSQL, MySQL, Vector Databases ☁️ Deployment: Vercel, Netlify, Render, AWS (Basic), Git/GitHub, CI/CD 🎯 Specializations: SaaS Platforms, AI Applications, RAG Chatbots, AI Agents, Business Automations, Admin Dashboards, Internal Tools, Multi-Role Systems Are you looking for a developer who can build both modern web applications and AI-powered solutions? I help startups, agencies, and SaaS companies build scalable products using the MERN stack while integrating advanced AI capabilities such as RAG systems, AI chatbots, autonomous agents, workflow automation, and LLM-powered applications. Over the last 5+ years, I have built and maintained: • Full SaaS platforms with subscriptions, billing, and role management • AI-powered chatbots using OpenAI and Retrieval-Augmented Generation (RAG) • Agentic AI workflows that interact with APIs, databases, and business processes • n8n automations for lead management, customer support, notifications, and business operations • Admin dashboards, analytics platforms, and internal business tools • Secure authentication systems using JWT, OAuth, and RBAC • REST and GraphQL integrations with third-party services, payment gateways, CRMs, and AI platforms • Modern React.js and Next.js applications with responsive user experiences Common client challenges I solve: • Building AI chatbots trained on company documents and knowledge bases • Creating RAG systems that provide accurate and context-aware answers • Automating repetitive business tasks using AI and n8n • Scaling SaaS applications without sacrificing performance • Refactoring messy codebases into maintainable, production-ready systems • Connecting multiple services, APIs, databases, and AI tools into a unified workflow Working with me, you will: ✅ Get scalable full-stack applications built with modern architecture ✅ Launch AI chatbots, AI agents, and RAG systems faster ✅ Automate business workflows and reduce manual work ✅ Receive clean, maintainable, and well-documented code ✅ Improve user experience with responsive and performant interfaces ✅ Work with a single engineer who understands frontend, backend, databases, AI, and automation If you need someone to: • Build a full MERN Stack web application from scratch • Develop AI Chatbots powered by OpenAI, RAG, and custom knowledge bases • Build AI Agents that can perform tasks, interact with APIs, and automate workflows • Create n8n automations to streamline business operations and reduce manual work • Refactor and optimize a slow, buggy, or difficult-to-maintain application • Add new modules such as dashboards, reporting, analytics, admin panels, and internal tools • Integrate third-party APIs, payment gateways, CRMs, and AI services • Implement secure authentication, authorization, and role-based access control • Build SaaS platforms with scalable architecture and clean code • Prepare your product for launch with a stable, secure, and production-ready foundation I am here to help. SOUND LIKE A FIT? Click the green "Invite to Job" button, send me a brief overview of your project, and we'll discuss the best approach to build a scalable application, AI solution, or automation workflow that delivers real business value.

I build AI systems that actually work in production. Not demos, not prototypes, but real agentic workflows and LLM-powered applications running at scale inside businesses. Over 9 years I've shipped 45+ projects across 23,000+ hours on Upwork, earning Top-Rated Plus status. My work spans SaaS platforms, microservices architectures, and now heavily focuses on AI agent development, RAG systems, and LLM integration for companies ranging from early-stage startups to global enterprises. What I do well: Agentic AI & Automation: Multi-step AI workflows using LangGraph, LangChain, and CrewAI. I build agents that handle real business processes like lead qualification, document processing, customer onboarding, and internal knowledge retrieval. These aren't chatbot wrappers. They're systems with tools, guardrails, and structured outputs. LLM Application Development: Custom RAG apps, AI-enhanced SaaS features, fine-tuned domain models, and API integrations with OpenAI, Anthropic Claude, and Google Gemini. I handle the full stack from vector database design (Pinecone, Supabase) through to the React/Next.js frontend. Production Architecture: Migrated monolithic applications to microservices for global companies. I design systems using Go, Node.js, Python/FastAPI, and deploy on Kubernetes with proper CI/CD pipelines. The AI features I build are production-grade: evaluated, monitored, and maintainable. Fintech & Compliance-Ready AI: Fraud detection, KYC/AML automation, credit scoring models, and regulatory compliance systems. I understand the domain requirements that make fintech AI different from generic AI work. Cloud & Infrastructure: Kubernetes, Docker, AWS, GCP, DigitalOcean, Cloudflare. I manage the full deployment lifecycle, not just the code. My approach is fixed-scope with clear deliverables. I don't do open-ended hourly billing unless the project genuinely requires discovery. Most standard AI projects I deliver in 2-4 weeks. Available 11 AM to 8 PM GMT+5. Happy to jump on a call to discuss your project.