RESTful Experts For Hire
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Hire Smart1902
Need a production-ready mobile or web app delivered fast without quality compromises? With 13+ years of full-stack engineering experience, I specialise in building cross-platform mobile applications and modern web systems. I have published over 180+ live applications to the Apple App Store and Google Play...Need a production-ready mobile or web app delivered fast without quality compromises? With 13+ years of full-stack engineering experience, I specialise in building cross-platform mobile applications and modern web systems. I have published over 180+ live applications to the Apple App Store and Google Play Store. Core Specialties: Mobile Development: Flutter (Dart), React Native, Native Android (Kotlin/Java), iOS (Swift) Web & Full-Stack: React.js, Node.js, MERN Stack, PHP/Laravel, Python, REST/GraphQL APIs Figma to Code: Converting complex Figma/Adobe XD designs into pixel-perfect Flutter UI Maintenance & Fixes: Bug fixing, API integrations, and app performance optimization Why Clients Choose Me: Proven Track Record: 180+ completed apps with a 97%+ budget adherence rate. Fast Turnaround: Immediate project start with proactive, daily communication. Code Quality: Clean architecture, clean Git commit history, and scalable code structures. Have a project or an urgent bug fix? Send a message and let's discuss your requirements. less -
Hire carlosv116
I build high-performance AI-powered web and mobile applications that generate measurable business results—not just attractive interfaces. As a Senior Full-Stack Developer based in Spain, I specialize in building scalable SaaS platforms, AI products, EdTech solutions, and eCommerce applications using Python...I build high-performance AI-powered web and mobile applications that generate measurable business results—not just attractive interfaces. As a Senior Full-Stack Developer based in Spain, I specialize in building scalable SaaS platforms, AI products, EdTech solutions, and eCommerce applications using Python (Django/FastAPI), React, Next.js, and modern cloud technologies. My solutions have helped businesses improve performance by up to 40%, automate as much as 70% of manual workflows, and increase conversions through scalable architecture and user-focused design. **Recent projects** ✅ AI-powered SaaS platform using GPT-4.1 processing thousands of requests daily ✅ Scalable EdTech platform serving thousands of monthly users ✅ High-performance business websites that increased SEO rankings, traffic, and online sales **Core expertise** ✅ Scalable backend architecture & REST APIs ✅ SEO-optimized frontend with React & Next.js ✅ AI integrations, automation & intelligent workflows ✅ Stripe payments & subscription systems 🌐 **Full-Stack Web Development** I develop modern web applications with React, Next.js, TypeScript, and the TanStack ecosystem (Query, Router, Table, Form). My experience includes SaaS platforms, admin dashboards, customer portals, real-time applications, SSR, API integrations, WebSockets, and deployments on AWS, Vercel, and self-hosted infrastructure. 📱 **Mobile Development** I build cross-platform mobile apps with React Native and Flutter featuring offline support, push notifications, secure authentication, in-app purchases, and complete App Store & Google Play deployment. 🤖 **AI Development** I create production-ready AI solutions including LLM applications, RAG pipelines, AI chatbots, recommendation engines, workflow automation, and custom AI integrations. My stack includes FastAPI, LangChain, OpenAI, Anthropic, n8n, Make.com, Pinecone, Supabase pgvector, and vector search technologies designed for scalability, performance, and cost efficiency. 🎮 **Game Development** I develop mobile and browser-based games using Unity, Unreal Engine, Phaser, Three.js, and PixiJS, including multiplayer functionality, gamification systems, leaderboards, matchmaking, and real-time synchronization powered by WebSockets, Firebase, and Python backends. I don't simply complete tasks—I think like a product engineer. I proactively identify opportunities to improve performance, simplify architecture, reduce costs, and build scalable solutions that support long-term business growth. If you're looking for a senior developer who can take your product from idea to production with minimal supervision, I'd be excited to help build something exceptional. less -
Hire extreamcode
I am a Full-Stack, AI, and Digital Solutions Engineer with 15+ years of experience delivering websites, business apps, automation systems, API integrations, CRM workflows, dashboards, digital marketing support, presentations, and technical problem-solving. I help clients turn ideas into practical deliverables, from...I am a Full-Stack, AI, and Digital Solutions Engineer with 15+ years of experience delivering websites, business apps, automation systems, API integrations, CRM workflows, dashboards, digital marketing support, presentations, and technical problem-solving. I help clients turn ideas into practical deliverables, from planning and design to development, deployment, optimization, documentation, and post-launch support. 30-Day Guarantee with Full Support Coverage After Project Completion. Core Expertise: - Custom websites, web apps, dashboards, portals, SaaS tools, admin panels, and business software - PHP, MySQL, JavaScript, React, Node.js basics, Python, Flask/FastAPI, MERN, LAMP, and CakePHP - WordPress, WooCommerce, Shopify, Magento, OpenCart, PrestaShop, CS-Cart, WHMCS, Webflow, Wix, Squarespace, Framer, Base44, Lovable, and Odoo - Flutter mobile apps for Android and iOS - REST APIs, webhooks, payment gateways, data sync, and third-party integrations - AI / ChatGPT integrations, AI assistants, automation tools, Python MVPs, and AI-enabled workflows - CRM, lead capture, verified lead workflows, appointment-setting systems, GoHighLevel, Zoho CRM, forms, funnels, and marketing automation - Landing pages, analytics, conversion tracking, email/SMS/WhatsApp workflows, and lead management - UI/UX, responsive web design, Figma-to-web, product pages, checkout pages, and conversion-focused layouts - PowerPoint, pitch decks, executive presentations, educational presentations, visual storytelling, infographics, and editable business documents - Canva, Figma, Adobe-style assets, social/web graphics, product visuals, storyboards, and AI-assisted image/video concepts - Three.js, WebGL, Unity-style interactive experiences, product visualization, and marketing animation support - SQL databases, reports, authentication, booking systems, inventory tools, and operational dashboards - Hosting, cPanel/WHM, VPS, Cloudflare, SSL, DNS, Linux/Windows Server, deployment, migration, speed optimization, and troubleshooting - Business process, logistics, capacity-planning, simulation-style workflows, AnyLogic/FlexSim-style support, Excel/SQL data preparation, scenario reporting, and documentation Many projects are not only websites. They involve connecting software, data, marketing, operations, reports, presentations, APIs, cloud services, and business workflows. I help turn those moving parts into dependable deliverables. What You Can Expect: - Clear communication - Practical technical advice - Clean, scalable implementation - Business-focused problem solving - Reliable troubleshooting - Proper documentation - 1-month free support after delivery Whether you need a website, eCommerce store, app, API integration, automation workflow, CRM setup, lead generation system, dashboard, presentation deck, AI tool, server fix, creative web asset, or business process solution, I can help you build it properly. less -
Hire AariyanKA
I am a Senior Software Architect and Mobile Engineer with over 7 years of experience and a track record of 70+ successful project deployments. I specialize in building, scaling, and optimizing enterprise-grade mobile applications. My core focus is native and cross-platform mobile development, supported by deep...I am a Senior Software Architect and Mobile Engineer with over 7 years of experience and a track record of 70+ successful project deployments. I specialize in building, scaling, and optimizing enterprise-grade mobile applications. My core focus is native and cross-platform mobile development, supported by deep expertise in full-stack infrastructure, high-performance networking, and modern AI integration. Whether you need to architect a complex application from scratch or optimize, polish, and extend an existing platform, I provide end-to-end technical execution. By leveraging multi-modular Clean Architecture, I ensure your codebase remains highly testable, maintainable, and scalable under massive user loads. Furthermore, I utilize AI-driven development workflows, including Cursor and GitHub Copilot, to accelerate development timelines. This allows me to rapidly audit legacy code, safely refactor, and deliver premium results significantly faster than traditional workflows while strictly maintaining code quality. Core Technical Expertise: 1. Mobile Architecture & UI: Native Android (Kotlin, Jetpack Compose), iOS, Flutter, and Kotlin Multiplatform Mobile (KMM). 2. Enterprise System Design: Multi-modular Clean Architecture, MVVM, MVI, and strict adherence to SOLID principles. 3. Full-Stack & Advanced Networking: End-to-end backend and responsive front-end development, integrated with high-performance gRPC communication and REST APIs. 4. AI Integration & Automation: Implementing LLMs, building custom intelligent workflows, and leveraging AI coding assistants for rapid iteration. 5. Niche Hardware/OS Capabilities: Custom AOSP ROM development and OS-level modifications for specialized enterprise devices. The Strategic Value I Bring: 1. Rapid Codebase Auditing & Optimization: I excel at diving into existing projects, identifying bottlenecks, and implementing immediate performance improvements without disrupting active users. 2. End-to-End Ownership: Because my skills span from the backend network layer (gRPC) to the mobile user interface, I can architect, build, and optimize your entire stack. 3. Consultative Approach: I operate as a strategic technical partner, prioritizing proactive communication, transparency, and precise alignment with your business goals. Please reach out to discuss your project requirements, and we can map out a robust technical strategy for your application. less -
Hire bhardwaj786
Welcome to Appquipo! We are a Mobile Application Development team that is well-respected for our captivating, innovative, and one-of-a-kind mobile app designs. Our certified team of App Experts has more than 10 years of comprehensive experience in this field and has worked with some absolutely phenomenal clients to...Welcome to Appquipo! We are a Mobile Application Development team that is well-respected for our captivating, innovative, and one-of-a-kind mobile app designs. Our certified team of App Experts has more than 10 years of comprehensive experience in this field and has worked with some absolutely phenomenal clients to create a stunning portfolio of work. Through our expertise, we offer the following services: ✅Salesforce Expertise – Commerce Cloud, Marketing Cloud, Sales Cloud, Service Cloud, Analytics, Salesforce Einstein, Salesforce -- CRM, Salesforce Mobile App ✅eCommerce Expertise-- Magento 2, Shopify, BigCommerce, WooCommerce, OpenCart, Shopware, ✅Languages Expertise -- PHP(CorePHP, Laravel, Cakephp, Yii, Yii2, Symfony, CodeIgniter, Zend), Angular, Node, React ✅Mobile Platforms - iOS, Android, Xamarin, Flutter, ionic Phone-gap, React Native, All On-Demand App ✅Software – ERP & CRM Development, SaaS products, Database Solutions Management, Supply Management, HRM, Booking Software, e-Learning As you can see, our offerings encompass a number of areas, and we can confidently say that we deliver some of the best services and assets in each of these areas. Whether you need a new app built, or an existing app reconfigured or edited, we will work with you to fix all your problems. We do this through consistent communication and in-depth planning and brainstorming. We will also meet all deadlines and budgetary limits, so there never needs to be any stress about deliverables. If you’re interested in working with us, you can reach us on Freelancer, where our team will gladly answer any questions you may have about our work, portfolio, reviews, or skill set. So please, let us know how Appquipo can help you today! less -
Hire AdeelAslam4
We're BrainX, a Pakistan-based software team that builds and maintains mobile apps people actually use. Baritastic, a HIPAA-compliant bariatric care app we've maintained for over 5 years, has 500,000+ installs and a 4.6 rating on Google Play, with native iOS and Android builds, wearable integrations across Fitbit,...We're BrainX, a Pakistan-based software team that builds and maintains mobile apps people actually use. Baritastic, a HIPAA-compliant bariatric care app we've maintained for over 5 years, has 500,000+ installs and a 4.6 rating on Google Play, with native iOS and Android builds, wearable integrations across Fitbit, Garmin, and Apple HealthKit, and a provider dashboard for care teams. That's not the only one live today: • Ponder, an AI voice-therapy app on both app stores • CaloTracker, an AI-powered calorie and nutrition tracker built in Flutter, with photo and barcode scanning and Apple Health sync • LUMP, a cross-platform Flutter social meetup app with a Node.js and MongoDB backend, live on both stores • RollStrong, a Flutter fitness app with a working subscription model, live on both stores • SwapDotz, an app using native NFC integration to verify and trade physical collectibles Clients back this with real budgets: one mobile app project came in at over $17,000, another at over $4,000, both five-star reviews specifically praising our delivery and communication. AI development is core to what we build into mobile • MathAMentor, an AI maths tutor students talk to through a live avatar • Call Sling, an AI agent that answers and routes inbound calls • DocuMed, AI medical transcription with mobile, web, and offline support • RAG assistants, document and workflow automation, and support bots running across websites and WhatsApp for live clients Also part of what we do: Web Development • Next.js, React, Node.js, Python, and Laravel Shopify & Custom eCommerce • Custom storefronts and eCommerce builds UX/UI Design • Full product design from concept through interface Tell us what you're building and we'll walk you through how we'd approach your mobile app. less -
Hire reedsystems
10+ Years of Engineering Excellence | AI Specialist for Google LLM Initiatives I don't just write code; I architect systems that scale to thousands of users and solve complex business challenges. If you are looking for a Senior Architect to build a production-ready system correctly the first time, let's talk. 🚀 What...10+ Years of Engineering Excellence | AI Specialist for Google LLM Initiatives I don't just write code; I architect systems that scale to thousands of users and solve complex business challenges. If you are looking for a Senior Architect to build a production-ready system correctly the first time, let's talk. 🚀 What I Bring to Your Project: • Big Tech Pedigree: Currently contributing to Google’s LLM quality initiatives—I understand the cutting edge of AI and RLHF. • SaaS Mastery: I have architected and deployed numerous multi-tenant SaaS platforms (Fintech, Logistics, Retail). • Full-Cycle Ownership: From database design (SQL Server/PostgreSQL) to frontend (React) and cloud deployment (AWS/Docker). 🛠 Specialized Services: • FullStack Software Development • AI/LLM Integration & Fine-tuning • Scalable Multi-tenant SaaS Architecture • Real-time Logistics & GPS Tracking Systems • High-Concurrency Financial & POS Systems With more than 95% client retention rate, I focus on long-term maintainability and performance. Let's build your next success story. less -
Hire cmitexperts
CMITEXPERTS is a web and software development team helping businesses build, improve, and maintain their websites, eCommerce stores, and custom applications. We work with both new and existing projects — whether you need a small fix, a highly customized website, a new feature, an eCommerce solution, a third-party...CMITEXPERTS is a web and software development team helping businesses build, improve, and maintain their websites, eCommerce stores, and custom applications. We work with both new and existing projects — whether you need a small fix, a highly customized website, a new feature, an eCommerce solution, a third-party integration, or a complete business application built from the ground up. Our main areas of expertise include: WORDPRESS & WOOCOMMERCE • Custom WordPress website development • Highly customized themes and functionality • Elementor development and customization • Custom plugins and integrations • WooCommerce customization • Complex product, pricing and checkout requirements • Performance, security and maintenance • Figma to WordPress development WordPress is one of our strongest areas, especially when a project requires more customization than a standard theme or plugin can provide. SHOPIFY • Custom Shopify theme development • Shopify 2.0 customization • Custom Shopify apps and private apps • Shopify API and webhook integrations • Custom eCommerce functionality • Product, pricing and checkout customizations • Store improvements and performance optimization CUSTOM WEB APPLICATIONS When a project needs something beyond WordPress or Shopify, we build custom applications using modern technologies such as: • React / Next.js • Node.js / NestJS • Laravel / PHP • PostgreSQL / MySQL • REST APIs and third-party integrations • AWS • Git and CI/CD This includes admin panels, dashboards, booking systems, business management platforms, SaaS applications, customer portals, internal tools, and other custom software. DEVOPS & DEPLOYMENT We can also take care of the technical side of getting an application into production — including AWS setup, servers, deployment, Git workflows, CI/CD pipelines, environment configuration, backups, and ongoing maintenance. UI/UX & MOBILE We work with Figma to create and implement clean, responsive interfaces and can also develop mobile applications based on your product requirements. SEO & PERFORMANCE We also help improve website performance and technical SEO, including speed optimization, Core Web Vitals, technical issues, and search-engine-friendly implementation. ⭐ 500+ Five-Star Reviews 🚀 2,000+ Projects Delivered 🌍 Working with businesses worldwide What matters to us is understanding what you actually need before jumping into development. For some projects, WordPress or Shopify is the right solution. For others, a custom application makes more sense. We choose the approach based on the requirements rather than forcing every project into the same technology. Whether you need a quick fix, an existing website or application improved, or a complete system developed from scratch, we're happy to take a look. Send us the requirements, even if they're not fully defined yet. We'll review them and suggest a practical way forward. less -
Hire AwaisChaudhry
*Click Contact to discuss your project* We are ZAWN Tech, a software and engineering team helping businesses turn complex ideas into reliable, production-ready products. Since 2014, we have delivered web platforms, mobile applications, SaaS products, AI/ML solutions, enterprise systems, automation, blockchain...*Click Contact to discuss your project* We are ZAWN Tech, a software and engineering team helping businesses turn complex ideas into reliable, production-ready products. Since 2014, we have delivered web platforms, mobile applications, SaaS products, AI/ML solutions, enterprise systems, automation, blockchain applications, IoT/embedded systems, and custom software for clients worldwide. With 349+ client reviews, a 4.9/5 rating, 95% on-time delivery, and 99% on-budget performance, our focus is simple: understand the business problem, build the right technical solution, and deliver it reliably. What we specialize in • AI & Machine Learning — computer vision, AI applications, automation, LLM integrations • Web & SaaS — React, Next.js, Node.js, Python, PHP and custom platforms • Mobile Apps — iOS, Android and cross-platform applications • Enterprise Software — business management systems, APIs, integrations and automation • Blockchain & Web3 — smart contracts, wallets, exchanges and custom blockchain solutions • IoT & Engineering — connected devices, embedded systems and industrial applications • Cloud & DevOps — deployment, infrastructure, APIs, databases and scalable architectures Why clients work with us ✅ 10+ years of experience on Freelancer ✅ 349+ completed client reviews ✅ 4.9/5 overall rating ✅ 95% on-time delivery ✅ 99% on-budget delivery ✅ Experienced multi-disciplinary technical team ✅ Full project lifecycle — strategy → design → development → testing → deployment → support We are particularly suited to projects where technical complexity, reliability and long-term maintainability matter. If you have an idea, an existing product that needs improvement, or a complex system that needs to be built from scratch, send us the requirements and we'll help you determine the best technical approach. less -
Hire rinsadsl
If you are seeking a strategic technology partner who delivers modern, scalable, and intelligent digital solutions, you are in the right place. We are a forward-thinking team specializing in Software Engineering, Web & Mobile Development, AI Solutions, and Intelligent Automation. Our approach is focused on building...If you are seeking a strategic technology partner who delivers modern, scalable, and intelligent digital solutions, you are in the right place. We are a forward-thinking team specializing in Software Engineering, Web & Mobile Development, AI Solutions, and Intelligent Automation. Our approach is focused on building future-ready systems that combine clean architecture, performance, and business impact. Our technical expertise spans PHP, Node.js, Angular, Flutter, React, React Native, C#, VB.NET, and leading platforms such as WordPress, WooCommerce, Magento, and PrestaShop, supported by enterprise-grade databases including MySQL, PostgreSQL, Oracle, and SQL Server. Beyond development, we help businesses scale through AI-driven innovation and automation, including: - AI chatbots, voice agents, and virtual assistants - Workflow and process automation using Make.com (Integromat), n8n, and custom solutions - AI-powered data processing, content generation, and decision support - CRM, marketing, and operations automation to reduce costs and increase efficiency We have strong expertise in API-based integrations and ecosystem automation, connecting platforms such as Amazon, eBay, Shopify, Walmart, Lazada, Wish, and logistics providers including USPS, UPS, FedEx, and DHL, enabling seamless commerce and fulfillment workflows. Our focus is not just on delivery, but on measurable outcomes, speed, reliability, scalability, and long-term value. We thrive on complex challenges and continuously adopt the latest AI and automation trends to keep our clients ahead of the curve. Review our portfolio below and let our work demonstrate the standard we uphold. We are committed to delivering solutions that are intelligent, efficient, and built for growth. less
