Hire the Best Google App Engine Developers in Karachi, PK

Most AI features die between prototype and production. I build the ones that don't — agents, LLM workflows, and the full-stack engineering that keeps them running when real users show up. Whether you're a founder integrating AI into your product, a team automating internal workflows, an agency needing a senior IC for client work, or a business adding LLM capabilities — if it involves shipping AI alongside solid engineering, I can help. Engagements range from one-week scoped builds to embedded 3-6 month contracts, hourly or fixed-price. What I work in: - AI agents and orchestration — LangChain, LangGraph, or custom loops when the framework gets in the way - LLM integration — OpenAI, Anthropic, function calling, structured outputs, eval pipelines - Workflow automation with LLMs — n8n, Make, custom Python pipelines - The production scaffolding that makes any of it real: Python (Flask/FastAPI), TypeScript, AWS, Docker, Postgres Where I'm a strong fit: - You have a working prototype and need to make it production-grade - You're integrating an LLM into an existing product without rewriting it - You need a senior full-stack + AI hand who can take a feature end-to-end - You have a focused short-term task — refactor, integration, bug fix, or audit on AI/Python/TS systems What I don't take on: - Pure ML research or training models from scratch - Anything where I can't talk directly to whoever decides what gets built 7+ years of full-stack engineering, last ~18 months focused on LLM/agent work. Top Rated, 100% JSS, 47 jobs, 1,100+ hours. Most recent long-term contract was 762 hours over 12 months — client wrote "tremendous expertise" verbatim. Most of my recent AI work is under NDA. Happy to walk through anonymized case studies on a short call. Send me a paragraph on what you're building. I'll tell you whether I'm the right fit, and if I'm not, I usually know who is. Prefer to talk? Message me and we'll set up a quick 20-minute call to see if we're a fit.

Hi, Thanks for viewing my profile. After 25 years of I.T industry experience I am Enthusiastic to join the freelance community to find new avenues for my skills and find new customers (hope u will be one of them) and projects. I am experienced with: -Google | Sheets | Forms | Docs | Drive | Calendar | Appscript | Appsheet | Gmail -Automation, data aggregate, reporting, advance formulas, dashboards -Google App Scripts to automate google workspace tools, generate PDF, email -Low-code and NO-code apps like Airtable | Zenphi I am also proficient with building an app/solution out of spreadsheets using: -API integration for data sync/download -Google Sheet with Formulas/queries -Google Form to gather data -Generate Reports with Formulas/queries -Appscript to integrate all workspace tools -Aggregation data with multiple sheets -Search/Filter within data using Formulas/queries -handling Big size data -AppSheet as a user interface -Microsoft Excel -And along the way learn new related skills So what it is like working with me? -I first like to understand your pain points with current business flow, then work together to create a solution for that -Delivery time is important to me -I give attention to details -Accuracy in committed output -Eager to learn new skills/business required for the project -Flexible in work hours -Flexible in finding ways to turn a successful project -Fair pricing I have been programming since 1998 in many different languages. I got my start with google app development by creating (and continually developing) a basic ERP/inventory system for a POS system using google sheet. I am experienced with ERP software (like Odoo), integrating them with spread sheet software, and collaboration b/w users for data input using google sheet/form/Appscript/Appsheet.

Hi, I'm Owais — a full-stack Mobile and Web app developer, and project leader with over 10 years of experience delivering digital products that are secure, scalable, and built to last. 🔧 What I Do I help startups and businesses launch mobile apps, SaaS platforms, workflow automation systems, eCommerce systems, systems integration, AI tools, and productivity apps. Whether you're starting from scratch or scaling an existing solution, I bring the strategy, code, and infrastructure to execute your vision with precision. 🚀 Mobile Technologies 🚀 Flutter | Firebase | Flutter Flow | Hybrid App Development | Dart | Google Playstore | Apple App Pay 🔥 Back-End Technologies 🔥 Laravel | Node js | Python | PHP | APIs development | Codeignitor | PHP Core | Shopify Apps | APIs development 🚀 Front-End Technologies 🚀 React | Vue js | Next js | HTML5 | TypeScript | Angular | Redux 🚀 Databases 🚀 Supabase | Firebase | MySQL | MongoDB | Postgre SQL | MS SQL | Firestore 🚨 Integration Expertise 🚨 Github | Slack | Discord | Telegram Integration | Zoho CRM Integration | HubSpot CRM Integration | Zenventory Integration | eBay Integration | Walmart Integration Integration | Shopify Integration | Wordpress Integration | Sellercloud Integration | GoShippo APIs | Easypost APIs | Aftership APIs | Shipstation Integration | PipeDrive CRM Integration | Paypal Integration | Stripe Integration | Plaid payment gateway integration | Zillow payment gateway integration | Helcim integration | Coinbase integration | 🎯 Why Clients Work with Me I don’t just build apps — I build ecosystems. I help you make smarter technical decisions, optimize for growth, and ensure your product is reliable and future-proof. Clients appreciate my ability to turn complex business requirements into clean, modular, and well-documented systems. 📬 Let’s connect if you’re looking for a long-term partner who delivers not just code, but clarity, confidence, and results.

𝗜 𝘄𝗶𝗹𝗹 𝗿𝗲𝘃𝗶𝗲𝘄 𝘆𝗼𝘂𝗿 𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗮𝗻𝗱 𝘀𝘂𝗴𝗴𝗲𝘀𝘁 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗶𝗺𝗽𝗿𝗼𝘃𝗲𝗺𝗲𝗻𝘁𝘀 𝗯𝗲𝗳𝗼𝗿𝗲 𝘀𝘁𝗮𝗿𝘁𝗶𝗻𝗴 𝘁𝗵𝗲 𝗽𝗿𝗼𝗷𝗲𝗰𝘁. Most businesses lose hours every week managing spreadsheets, updating reports, handling repetitive tasks, and moving data between tools manually. I help businesses automate Google Sheets, Google Workspace, APIs, dashboards, reporting systems, and business workflows to save time, reduce errors, and improve productivity. If your business is dealing with spreadsheet chaos, disconnected systems, manual reporting, or repetitive admin work — I can build a smart automation solution tailored to your workflow. ➡ 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 ✅ Google Apps Script Development ✅ Google Sheets & Spreadsheet Automation ✅ Google Workspace Automation ✅ Workflow & Business Process Automation ✅ API & REST API Integrations ✅ CRM & SaaS Integrations ✅ Dashboard Development & KPI Reporting ✅ Data Processing, ETL & Reporting Automation ✅ Data Cleaning, Transformation & Consolidation ✅ Custom Web Apps & Internal Business Tools ✅ Email, Form & Trigger-based Automation ✅ Real-time Data Sync Systems ✅ Financial & Approval Workflow Systems ✅ Multi-user Systems & Role-based Access Control ➡ 𝗦𝗞𝗜𝗟𝗟𝗦 ✅ Google Apps Script ✅ Google Sheets ✅ Google Workspace ✅ JavaScript ✅ REST APIs ✅ Webhooks ✅ Apps Script API ✅ Google Forms ✅ Gmail Automation ✅ Google Drive Automation ✅ Google Calendar Automation ✅ Data Analysis & Dynamic Reporting ✅ Workflow Systems & Scripting ✅ Form & Email Automation ✅ Property Search Systems ✅ Data Sync & Reporting Pipelines ✅ Microsoft Excel ➡ 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 ✅ Google Sheets Automation ✅ Apps Script Development ✅ API Integrations ✅ CRM Automation ✅ Automated Dashboards & Reports ✅ WordPress & Jobber API Integration ✅ Spreadsheet Cleanup & Optimization ✅ Workflow & Operations Automation ✅ Financial Tracking Systems ✅ Data Entry & Form Automation ✅ Gmail & Notification Systems ✅ Custom Google Workspace Tools ✅ Custom Web App Development ➡ 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 ✅ 5+ Years of Automation Development Experience ✅ Built systems for USA, Australia & Pakistan clients ✅ Team Lead for Automation Projects ✅ Delivered scalable business automation systems ✅ Experience from planning to deployment & support ➡ 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 ✅ Landscaping ✅ Real Estate ✅ Solar Industry ✅ Travel Industry ✅ Digital Marketing ✅ Operations & Finance Management ➡ 𝗗𝗢𝗠𝗔𝗜𝗡 ✅ Operations Automation ✅ CRM Automation ✅ Reporting Systems ✅ Financial Tracking Systems ✅ Team Productivity Systems ✅ Approval Management Systems ✅ Workflow Management ✅ Property Data Management ✅ Marketing Reporting Systems ✅ Internal Business Tools ✅ Reporting & Analytics Systems ✅ Multi-user Operations Systems ✅ Business Process Optimization ➡ 𝗧𝗢𝗢𝗟𝗦 ✅ Google Sheets ✅ Google Apps Script ✅ Google Workspace ✅ Gmail ✅ Google Drive ✅ Google Forms ✅ Google Calendar ✅ REST APIs ✅ Webhooks ✅ Microsoft Excel ✅ WordPress APIs ✅ CRM & SaaS Platforms ➡ 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 𝗠𝗘 ✅ Clean & maintainable code ✅ Fast communication ✅ Reliable project delivery ✅ Business-focused automation solutions ✅ Long-term support ✅ Scalable workflow systems If manual work, repetitive tasks, or spreadsheet problems are slowing down your business — send me a message. I’ll help you automate your workflow with smart, reliable, and scalable solutions. ➡ 𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦: Google Apps Script, Google Sheets Automation, Google Workspace Automation, Apps Script Developer, Spreadsheet Automation, Microsoft Excel, Workflow Automation, Business Process Automation, Automation Engineer, Google Workspace Specialist, API Integration, REST API, JavaScript, Webhooks, Google Forms, Gmail Automation, Google Drive Automation, Google Calendar Automation, Dashboard Development, KPI Dashboard, Reporting Automation, Data Processing, Data Cleaning, Data Transformation, ETL Pipelines, Dynamic Reporting, CRM Integration, SaaS Integration, WordPress API, Jobber API, Data Sync Systems, Custom Web Apps, Financial Tracking Systems, Trigger-based Automation, Operations Automation, Process Optimization, Sheets Developer, Automation Consultant, Business Automation, Internal Tools Development

I help startups and businesses turn their ideas into clean, functional, and scalable mobile apps using SwiftUI for native iOS and FlutterFlow for fast, cross-platform builds, with AI features integrated where it adds real value. I'm steadily growing on Upwork and focused on building long-term client relationships through quality work, clear communication, and on-time delivery. ━━━━━━━━━━━━━━━━━━ How Your Project Moves From Idea to Live App Every project follows a clear, organized process: Requirement Discussion → UI/UX Design → Development → Testing → Deployment → Support This keeps things transparent and easy to track from day one. ━━━━━━━━━━━━━━━━━━ FREE 30-MINUTE CONSULTATION Before we start, I offer a free consultation to: ✔ Understand your idea and goals ✔ Recommend the right tech approach (SwiftUI vs FlutterFlow) ✔ Discuss timeline and cost estimate ✔ Flag any potential issues early on ━━━━━━━━━━━━━━━━━━ What I Work On ✅ Native iOS apps (SwiftUI) ✅ Cross-platform apps (FlutterFlow) ✅ AI-powered mobile apps (AI chat, automation features) ✅ MVPs for startups ✅ App UI/UX design and rebuilds ✅ Firebase-backed apps (auth, real-time data, notifications) ✅ API integrations (third-party & AI APIs) ✅ Food delivery apps ✅ Ride booking apps (Uber-like) ✅ Real estate apps ✅ Social media apps ✅ SaaS platforms ✅ Healthcare & fitness apps ✅ E-commerce platforms ✅ Learning management systems ✅ Booking & appointment apps ✅ On-demand service apps ✅ CRM & business management systems ✅ Custom enterprise applications ━━━━━━━━━━━━━━━━━━ TECH STACK Mobile: SwiftUI, iOS, FlutterFlow, Flutter, React Native Backend: Firebase, REST APIs AI: OpenAI API, AI Chatbots, AI Automation ━━━━━━━━━━━━━━━━━━ WHAT I BRING BEYOND DEVELOPMENT → Honest technical advice (I'll tell you if an idea needs adjusting) → Clean, maintainable code → Regular updates throughout the project → Post-launch bug fixes and support → Realistic timelines — no overpromising ━━━━━━━━━━━━━━━━━━ If you're looking for a developer who's detail-oriented, communicates clearly, and genuinely cares about getting your app right let's talk. Expertise & Specialization SwiftUI / Native iOS Development FlutterFlow Development iOS & Android App Development AI-Powered Mobile Applications Full Stack App Development Cross-Platform Mobile Apps SaaS & Startup MVP Development Custom Mobile Application Development AI Chatbot & Automation Solutions Backend APIs & Cloud Infrastructure Firebase & Real-Time Applications Scalable Mobile App Architecture App Store & Play Store Deployment User Authentication & Payment Integration Third-Party API Integration In-App Purchases & Subscription Systems Mobile UI/UX Optimization AWS & Cloud-Based Solutions Mobile App Consultation & Technical Strategy Product Architecture & Scalability Planning Technologies SwiftUI • Swift • FlutterFlow • Flutter • Firebase • REST APIs • OpenAI API • iOS • Android • AWS

🥇 Total 5+ years of experience as a Full-stack Developer 💯 1 hours of response time with 100% Client Dedication! 🕛 Full Time Availability 👋Hey, Are you looking for an Expert Android Engineer? you are at the right place. I have a strong and deep understanding of Android SDK, Coroutines, MVVM, Retrofit, Room Database, and Android Mobile Applications. I'm an independent freelancer. I'm a Native Expert Android Engineer with 6+ years of experience developing all types of mobile applications using Kotlin and Java. I have experience in Dating, healthcare, Social, e-Commerce, education, etc kind of applications in Android. I have vast experience of developing websites and apps for various industries, including dating apps, fintech, social networking sites, health and wellness programs, taxi booking, food delivery, chats, messengers, audio/video chats, and sports and fitness apps. ► Excellent knowledge of Android/Java/Kotlin best practices and standard code style ► Experience with SCM tools, GIT, JIRA, Android Studio, ClearCase, etc. ► Strong skills in problem-solving and time management ► Knowledge of testing mobile applications ► Software platforms development experience, such as Linux and Android platform ► Familiar with the Android development toolkit and process. **MY TECHNICAL ABILITIES YOU CAN GET ** ✅ iOS and Android: Swift, Xcode, Kotlin, Java, Objective C, Android Studio ✅ React Native, Flutter, Ionic, React, XML, Redux ✅ Design and development of mobile apps for iOS and Android using Firebase, Hybrid Apps, and TypeScript ✅ Payment Gateways: WorldPay, PayPal, Apple Pay, Google Pay, Stancer, Stripe, 2Checkout, Adyen, Payline, Skrill and Braintree ✅ App Deployment on Google Play Store, IOS store and also on third party store as well ✅ Push Notifications, Payment Gateways, AWS, Analytics, Ads, Firebase, and React Native Expert ✅ Back-end API development with ASP.NET CORE, Node, Python, Django, PHP and Laravel Framework I have a proven track record of working effectively in both large teams and one-on-one with clients. I can assist you in creating websites and apps from scratch, taking your ideas and turning them into reality. I'm a reliable partner in your project's journey, and I'm dedicated to achieving your goals. For me is important to perform quality work for the client, I treat each project as my own because their success fuels mine's. When I’m working on a project, I don’t want just to meet deadlines. Rather, I prefer to complete the project well ahead of schedule. 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: 🚀 Great Work Ethic: I'm dedicated to doing top-quality work on every project. 🚀 Innovative Solutions: Provide innovative and impactful solutions to challenges. 🚀 Transparent Communication: Clear and open communication, utilizing platforms like Slack, Discord, Telegram, Skype, Jira, Trello, Asana, or ClickUp for timely updates. 🚀 Quick Learner : Quickly adept and master new frameworks, ensuring seamless integration into your projects. 🔷 READY TO TALK: 🕒 Schedule I'm here to discuss your project anytime, whether in writing or via voice or video calls. 💬 Availability I'm available 24/7 because your satisfaction matters most. Yes, even on Sundays. 📩 Reach Out Message me anytime, anywhere, and I'll get back to you ASAP. Let's chat about your project whenever you're ready.