I'm a full-stack web developer with over 13 years of experience building modern, scalable applications. I specialize in Angular, NestJS, TypeScript, and PostgreSQL, with a strong focus on clean architecture, automation, and performance optimization. I've worked with Angular since its earliest versions (AngularJS), and have grown alongside the framework into Angular 19. I actively leverage standalone components, signals, zoneless change detection, and modern state management with ngrx-signal-store and Redux. I build modular, maintainable, and high-performance frontends designed for scale — from enterprise apps to white-label solutions and custom component libraries. On the backend, I use NestJS with TypeScript to architect secure, maintainable APIs, and also have experience with PHP (Laravel, CodeIgniter), Java (Spring Boot), and Kotlin for microservices and RESTful backends. DevOps and infrastructure are part of my workflow too — I design CI/CD pipelines and work with Docker, Kubernetes, and cloud environments (Azure & AWS) to ensure smooth delivery and scalable deployment. I've contributed to large-scale SaaS platforms, business-critical internal tools, and complex frontend/backend integrations. I’m comfortable building from scratch, refactoring legacy systems, or automating and optimizing existing workflows. 💼 Projects I've built include: - A GTC automation platform for EV charging, managing tariffs and pricing across global markets (DCS) - White-label portal system for major OEMs (BMW, Mercedes, Toyota, Volvo), including custom rollouts and localization - A reusable design system and component library that saved millions in frontend maintenance - 3D fleet management UI for AGV robots using Angular + BabylonJS (arculus) - MQTT-driven dashboard for real-time robot fleet data, with REST API and OpenAPI integration - Admin interfaces with advanced filtering, CSV export, and role-based access control - Email automation system with dynamic templating and scheduling - A marketplace connecting brands with influencers, including scraping social data (Zine) - A photo marketplace (klaud9.com) with image editing and photographer dashboards - A low-code dashboard builder for internal business tools (ACUTA) - CRM systems and booking platforms for hotels and agencies - A desktop-to-mobile converter using web scraping and jQuery Mobile etc.... Let’s build something great together.

🔸 Mobile App Developer & CTO trusted by businesses to deliver products that survive production 🔸 10+ years of hands-on execution building scalable, high-performance mobile applications used by real users, not demos. I step in when quality, architecture, and long-term growth are needed. 🔸 100+ digital products launched 🔸 100% Job Success on Upwork 🔸 I am a CTO and hands-on mobile app developer leading ORIL, a senior engineering team focused on delivering high-performance, secure, and scalable mobile solutions. If you are looking for a reliable mobile developer or an experienced react native developer, you are working with a team that understands production, performance, and long-term growth. Our Core Strength: Mobile App Development We specialize in Mobile App Development for iOS and Android, with deep expertise in react native to deliver efficient cross-platform solutions without compromising native performance or user experience. As a mobile app developer team, we build production-ready applications used by real users on real devices, not prototypes or proof-of-concepts. Every mobile developer on our team has shipped apps to the App Store and Google Play. Every react native developer understands how to balance cross-platform efficiency with native quality. I also collaborate with teams as a Mobile App Developer and React Native Developer, ensuring that mobile designs are implemented efficiently and accurately. Working alongside mobile developer engineers this collaboration guarantees that every mobile product performs reliably on iOS and Android, meets user expectations, and is production-ready. What we deliver: 🔸 React Native App Development for iOS & Android 🔸 Native iOS Development and Kotlin-based Android apps 🔸 Cross-platform and native solutions led by senior engineers 🔸 Backend for mobile apps: Node.js, Java, secure and scalable APIs 🔸 AI-powered features and chatbots for mobile products Our Team & Approach Our team delivers end-to-end mobile solutions combining native iOS development, Kotlin-based Android apps, and cross-platform architectures. Every project is guided by a strong full stack developer mindset, ensuring the mobile application, backend services, and integrations operate as a single, reliable system. The team includes senior android developer specialists who optimize native features, iOS engineers who ensure App Store quality, and experienced react native developer experts who deliver cross-platform efficiency. When project scope requires broader technical coverage, we bring in flutter developer specialists for alternative cross-platform needs, web developer experts for admin dashboards and landing pages, or python developer professionals for backend systems, data processing, and AI integrations. Why Choose a Mobile App Developer with Production Experience As a mobile app developer with over a decade of experience, I've seen what separates successful launches from failed ones. The difference isn't just technical skill, it's understanding production constraints, user behavior, battery optimization, App Store guidelines, and long-term maintenance. Whether you need a mobile developer to rescue a struggling project, a react native developer to build from scratch, an android developer to optimize performance, a full stack developer to connect mobile with backend systems, or a web developer to build companion dashboards—I bring both strategic oversight and hands-on execution to ensure your product thrives in the real world. Industries we work with: FinTech, Finance & Banking, Healthcare, HealthTech, Real Estate, Property Management, Marketplaces, Logistics, Transportation, Automotive, Retail, Media, Education, Fitness, Travel, Hospitality, Construction, and more. If you need a mobile app developer, a trusted mobile developer, or a full team led by an experienced react native developer to build fast, scalable, and production-ready mobile applications, let’s connect and discuss how to turn your idea into a successful product. 🔸 Let's Build Your Mobile Product! 🔸

👨‍⚖️ Senior .NET Developer & AI Integration Specialist with 15+ years of experience building scalable web, mobile, and desktop applications. Core Skills: • AI Integration Expert. • AI & LLM Solutions • Penetration Testing (Web, Mobile & API Security) • Vulnerability Assessment & Security Auditing • Application Security Testing & Risk Analysis • Python, Data Science, LangChain, NLP • Generative AI. • .Net MAUI, Xamarin Forms • C#, .NET, ASP.NET, WebForms, Blazor • React, Next.js • SQL Server, SSRS • WPF, WinForms • PHP (maintenance & legacy support) 🎖 DOMAIN EXPERTISE ✔️ IRS Integration ✔️ POS ✔️ Banking ✔️ Travel ✔️ E-Commerce ✔️ Restaurant ✔️ Healthcare ✔️ Finance ✔️ Insurance ✔️ Educations Senior full stack developer extensive hands-on experience developing large scale, mission-critical end-to-end solutions including real-time and complex GUI systems. 💻TECHNICAL EXPERTISE ✔️ More than 15 years of experience in Travel Domain(Hotel, Flight, Tour, Visa, Package, Transfer) Booking website development. ✔️Development Technology : ASP.Net Webforms | SSRS(RDLC Reports) |ASP.NET MVC C#, VB |WEB | ERP & API Integration Specialist ✔️ Expert in third party Hotel API integration like TBO, Hotelbeds, Expedia, Dotw, Agoda, etc ✔️ Expert in third party Flight API integration like FR24, travelport, pkfair, mistify, fairlogics, bebilon, gelelio, flymm domestic myanmar, amedius, etc. ✔️ Microsoft (.Net Core | SignalR | Azure | SQL Server | 365 Identity Authentication (B2C/B2B)) ✔️ MAUI ✔️ NopCommerce ✔️ WordPress ✔️ PowerShell Script Expert ✔️ JavaScript Frameworks - Typescript (Angular | React | Node | Knockout | Vue | Next) ✔️ Source Controls (Git | TFS | Tortoise SVN/SG) ✔️ Database (SQL Server | MongoDB | Elastic Search | Amazon Dynamo | MS Document DB) ✔️ Payment Gateway (PayPal | Stripe | FastSpring | Payfort | Authorize .Net | CCAvenue | VIPPS | YourPay | Betalingservice | Alipay | PayU) ✔️Third-Party Integration: (Sendgrid | Twilio | Google APIs | RESTFull APIs | Ali Cloud SMS | Tencent SMS | MailGun | ShipStation | MSG91) ✔️ OAuth (Google | Office365 | Facebook | LinkedIn) API(REST) | Entity Framework | .Net Core | Angular | KnockoutJS | javascript | jQuery | MERN Stack | Next.js | PHP WordPress | Laravel | Code ignitor. ✔️Mobile Technology : React Native | Flutter | Native Development | Java | Kotlin | iOS | Swift | Objective - C. ✔️Cloud : AWS Cloud Front. S3 Bucket | EC2 | CodePipeline | Beanstalk | Amplify | Azure DevOps ✔️Deployment : CI/CD Pipeline Jenkins | Docker ✔️Azure : Azure AD B2C | Azure Active Directory | Azure SQL Database. ✔️Django, GitLab CI/CD, Django Rest Framework, Celery, Redis, PostgreSQL, Docker, Django-OTP, AWS, Heroku ✔️React, Next.js, Supabase/PostgreSQL, API integrations, subscription/payment management ⚙️ Work Flow Discuss on idea + Analise + Evaluate + Execution + Testing + Delivery = Success 🕒 Availability & 📧 Communication I always prefer a quick short call to project discussion or idea-sharing. It saves prospects precious time & energy. I can start work on the project IMMEDIATELY and work more than 8 to 9 hours/day and 45-50 hours/week. 💬 MESSAGE or INVITE me to build your best product. Always available to help to grow your business.

I specialize in building AI SaaS platforms, LLM applications, automation systems, and high-performance web platforms using modern technologies like OpenAI, LangChain, Python, Node.js, and React. With 10+ years of development experience, I help startups and companies turn ideas into production-ready AI products. What I Can Build For You ✅ AI Chatbots (GPT / Claude / LLaMA) ✅ RAG Systems & AI Knowledge Bases ✅ AI SaaS Platforms ✅ Automation Systems & AI Workflows ✅ Intelligent Dashboards & Analytics ✅ Custom APIs & Scalable Backend Systems ✅ Full-Stack Web Applications Tech Stack AI / LLM: OpenAI, GPT-4, Claude, LangChain, LlamaIndex, Vector Databases Backend: Python (FastAPI, Django), Node.js (NestJS, Express) Frontend: React, Next.js, TypeScript Cloud: AWS, Docker, CI/CD, Serverless Why Clients Work With Me ✔ AI + Full-Stack expertise in one developer ✔ Scalable SaaS architecture ✔ Clean, maintainable code ✔ Fast communication & reliable delivery I focus on building AI systems that work in production, not just demos. If you're planning to build an AI-powered SaaS platform, automation system, or intelligent web application, let's discuss your project. JP Tiwari

I’m a developer who enjoys building things that feel both powerful and simple. My expertise spans .NET Core, Angular, React, Supabase, bolt.new, and Nuxt, and I’ve become known for being able to take an idea and turn it into a working MVP quickly. I like to think of myself as a vibe coder, someone who can move fast but still keep an eye on the details that make a product feel polished. I care deeply about design and user experience, so I naturally pay attention to how an interface looks and feels, making sure it’s intuitive and pleasant to use. I’ve built projects ranging from small prototypes to larger applications, and I enjoy the process of shaping something from scratch into a tool that people can actually use. My curiosity keeps me exploring new frameworks and approaches, and I’m always looking for ways to make development smoother and more enjoyable. While my main focus is on development, I also carry some background in QA and testing, which helps me deliver solutions that are not only functional but reliable. It’s this mix of speed, creativity, and care for quality that defines the way I work.

Companies usually bring me in when they need more than just code. They need systems that are stable, scalable, and built with long term product growth in mind. I work with startups and growing businesses to turn complex ideas into production ready SaaS platforms, AI powered applications, automation systems, and data driven products that perform reliably in real world environments. Most of the projects I work on involve APIs, backend architecture, automation workflows, analytics, and AI integrations where clean engineering decisions matter from day one. Clients typically hire me to build MVPs fast without creating future technical debt architect scalable backend systems and APIs integrate complex third party services reliably implement practical AI workflows and automation stabilize existing production systems improve performance, scalability, and maintainability transform fragile platforms into dependable products I focus heavily on building clean and maintainable architecture so products continue to scale smoothly as usage grows. That includes SaaS platforms with admin dashboards and subscription systems AI powered applications using OpenAI, Claude, RAG pipelines, and intelligent workflows API driven platforms with multiple external integrations analytics and data visualization systems processing large datasets fintech, healthcare, and operational platforms where reliability is critical I work across the full stack from frontend experience to backend services, infrastructure, and data pipelines ensuring the entire system behaves predictably and remains maintainable over time. Platforms I Commonly Build SaaS Platforms Startup MVPs, internal business tools, admin portals, workflow systems, and scalable subscription based products. AI Powered Systems Applications integrating LLMs, AI agents, document processing, automation pipelines, semantic search, and retrieval systems. Data and Analytics Platforms Dashboards and reporting systems handling operational data, financial metrics, business intelligence, and real time analytics. API and Automation Infrastructure Systems connecting multiple third party platforms using APIs, webhooks, queues, and automation frameworks. Core Technologies Frontend Next.js React TypeScript TailwindCSS Backend Node.js Python FastAPI REST APIs Infrastructure and Data PostgreSQL Supabase Docker CI CD Pipelines AI and Automation OpenAI API Claude API AI Agents RAG Systems Zapier Make n8n Development Philosophy I focus on building production ready systems instead of temporary fixes. My approach is centered around clean and scalable architecture reliable API first system design predictable production behavior maintainable and extensible codebases reducing technical debt early building systems that teams can confidently scale If you are building a SaaS platform, an AI powered product, a data intensive dashboard, an automation heavy workflow system, or a platform with complex integrations and need someone who understands both technical architecture and product execution, I would be happy to discuss your project.

Hi! I’m Queenie, a highly skilled Front-End Developer based in Manila, Philippines. With over 7 years of experience in Angular (v2–18), JavaScript/TypeScript, RxJS, and enterprise-grade UI development, I help startups and established companies build polished, high-performance web apps that users love. I specialize in: - Angular (all versions), RxJS, NgRx – Modern, scalable architecture, feature toggles, advanced state management - UI/UX polish – Production-grade, responsive interfaces with Tailwind, Material, and custom CSS - Testing & Quality – Cypress, Jest, robust unit/integration testing - API integration – Secure, well-structured REST and GraphQL consumption - Team Collaboration – Clear communication, async/remote-friendly workflows (worked with teams in Australia, the Netherlands, USA, UK, and PH) - Fast, Efficient Delivery – Used to balancing multiple projects and tight deadlines (while raising kids—if you know, you know!) A little about me: I work best with teams who value results, direct communication, and a no-nonsense approach to getting things done. I’ve been the go-to front-end resource for fintech, SaaS, and enterprise projects. I thrive in remote, distributed setups and I’m always up-to-date on best practices and new tech. Let’s connect if you need a dependable, detail-oriented developer to bring your product vision to life—or if you just want your Angular headaches to go away!

We build scalable, production-ready SaaS platforms and AI-powered web applications for startups and growing businesses. Our focus: architecture, performance, AI integration, and long-term scalability. Over 80+ products delivered across Healthcare, Education, Logistics, eCommerce, Marketplaces, and Enterprise systems. 💡 Core Expertise 🔹 Full-Stack Development - Node.js, NestJS - Next.js (SSR, ISR, Edge) - Ruby on Rails - React.js, Angular, Vue - React Native (hybrid mobile apps) 🔹 AI & Automation - OpenAI API (GPT-4, Assistants, Function Calling) - AI SaaS platforms - Retrieval-Augmented Generation (RAG) - AI chatbots & copilots - NLP & AI-powered personalization - AI workflow automation - AI-driven APIs 🔹 Architecture & Infrastructure - Multi-tenant SaaS - High-load backend systems - REST & GraphQL APIs - SQL / NoSQL databases - CI/CD pipelines - Performance optimization 🤖 Our Proprietary AI Platform – Bridge We built Bridge, our internal AI Agent development framework. Bridge enables: - RAG pipelines for knowledge assistants - Secure ingestion from PDFs, CRMs, APIs - AI copilots for SaaS products - Multi-channel deployment (chat, web, internal tools) - MCP server creation - Modular and scalable AI architectures This allows us to deliver AI features faster and more securely than most teams. ⚡ Our Acceleration Advantage We use our own production-proven boilerplate. BC Next.js + NestJS Boilerplate helps: - reduce development time - ensure clean architecture - speed up MVP launches - maintain scalability from day one Even other agencies use it. 🧠 How We Work Deep product discovery Architecture design & tech stack validation Sprint-based Agile development Transparent daily communication Automated testing & QA Production deployment & scaling support We think like product owners, not just developers. 🎯 Why Clients Choose Us Strong backend architecture skills Real SaaS experience (not landing pages) AI-first mindset Clean, maintainable code Excellent communication Long-term partnership approach If you're building: - AI SaaS - Marketplace - Telehealth system - ERP/CRM platform - Multi-tenant dashboard - Custom AI assistant - Scalable web app Let’s talk! We offer a free technical consultation and architecture review. Additional Expertise: HTML5, CSS3, Sass, Scss, Responsive Web Design, Cross-Browser Compatibility, Web Accessibility, SEO Optimization, Frontend Architecture, Query, Angular, Vue.js, Ember.js, Web Components, Progressive Web Apps (PWA), Single Page Applications (SPA), Server Side Rendering (SSR), Client Side Rendering (CSR), API Integration, GraphQL, RESTful APIs, Web Performance Optimization, Browser DevTools, Git, GitHub, Webpack, Gulp, npm, yarn, Visual Studio Code, Sublime Text, Atom, Responsive Images, Lazy Loading Images, Code Splitting, Error Handling, Debugging, Agile Methodologies, Scrum, Kanban, Continuous Integration and Deployment (CI/CD)

10 Years experience, Top rated Full Stack Developer in Upwork since 2018, 13.5K hours worked within the platform with high value from end clients with performance in different types of projects, among them: 🎮 Online games, Gambling 🏛️ Realtime Auction games ✈️ Travel and tourism 🚗 Rental of goods 🛍️ B2C platforms 🧮 Accountants 🩺 Healthcare 🌐 IOT 🌐 Web Crawlers (Scrapping) MAIN SKILLS Backend ✔️ ExpressJS ⭐⭐⭐⭐⭐ ✔️ NestJS ⭐⭐⭐⭐⭐ ✔️ Python Django ⭐⭐⭐ ✔️ Strapi ⭐⭐⭐⭐ ✔️ Rust ⭐⭐⭐ ✔️ Laravel ⭐⭐⭐⭐ ✔️ Backend Architecture ⭐⭐⭐⭐⭐ Frontend ✔️Angular ⭐⭐⭐⭐⭐ ✔️NextJS ⭐⭐⭐⭐ ✔️VueJS - ⭐⭐⭐⭐ OTHER SKILLS DevOps ✔️Aws Codebuild ✔️Aws CodeDeploy ✔️Aws CodePipeline ✔️Aws Lambda (Node) ✔️Aws DynamoDB ✔️Aws Beanstalk ✔️Aws Cognito - 5 ✔️Aws S3 - 8 ✔️Aws SQS - 7 ✔️Aws EC2 - 8 ✔️Aws Route 53 - 8 ✔️Aws Cloudfront - 8 ✔️Aws RDS - 7 NGINX - 7 Databases 💾 MongoDB         ⭐⭐⭐⭐⭐ 💾 PostgreSQL     ⭐⭐⭐⭐⭐ 💾 SQL Server      ⭐⭐⭐⭐⭐ 💾 SnowFlake ⭐⭐⭐⭐⭐ 💾 Cassandra        ⭐⭐⭐ Others Elastic Search ⭐⭐⭐⭐ Redis ⭐⭐⭐⭐ Stripe Connect ⭐⭐⭐⭐ Stripe ⭐⭐⭐⭐ BridgerPay ⭐⭐⭐⭐ ChatGPT implementation - ⭐⭐⭐⭐ Interests, (study in progress) Smart Contracts/Blockchain Solidity General experience leading teams as CTO, creating architectures, defining technologies, and most importantly, writing code.

If you’re looking to automate workflows, build AI-powered applications, or develop a scalable SaaS product — I can help you turn your idea into a reliable system. I specialize in AI automation and full-stack development, combining modern frameworks with practical business use cases. My focus is not just building features, but creating systems that actually save time, reduce manual work, and scale efficiently. 🔹 What I can help you with: • AI automation using LangChain, LangGraph, and CrewAI • Building AI agents and workflow orchestration systems • Developing SaaS applications (frontend + backend) • FastAPI / Django backend development with scalable architecture • React / Next.js frontend for high-performance applications • Converting Figma designs into production-ready SaaS apps • Integrating APIs, databases, and third-party services 🔹 My approach: I use modern AI-assisted development tools like Cursor, Claude, and Codex to speed up development while maintaining clean, maintainable code and solid architecture. 🔹 Background: I also bring strong experience in Laravel, Angular, and full-stack JavaScript development, which helps me work across legacy systems and modern architectures. I typically work with startups, founders, and teams who want to build or automate products quickly without compromising quality. If you have an idea or an existing system that needs automation or scaling, feel free to reach out — I’m happy to discuss the best approach.