Backend Developers For Hire
Showing 583 results
Sponsored Freelancers
-
Hire kareemmaize
Great software starts with more than good code. It takes the right architecture, clear technical decisions, and someone who can carry the product from idea to production without losing sight of the business goal. I’m a Senior Full-Stack & AI Engineer with 10+ years of experience building complex web platforms, mobile...Great software starts with more than good code. It takes the right architecture, clear technical decisions, and someone who can carry the product from idea to production without losing sight of the business goal. I’m a Senior Full-Stack & AI Engineer with 10+ years of experience building complex web platforms, mobile applications, AI-powered products, enterprise systems, and connected-device solutions. Core Expertise: React / Next.js, Node.js / NestJS, Python / FastAPI, .NET, Laravel, Flutter, React Native, Kotlin | AI / LLM / RAG | SaaS Platforms | Cloud Architecture | Embedded & IoT | ESP32, Arduino, BLE / GATT, MQTT What I Can Build: ✅ AI & Intelligent Automation LLM-powered applications, RAG systems, AI assistants, document processing, workflow automation, predictive solutions, and AI integrations ✅ SaaS & Full-Stack Platforms Marketplaces, subscription platforms, payment systems, dashboards, admin portals, role-based applications, and real-time products ✅ Mobile Applications iOS and Android apps, Flutter, React Native, native Android, BLE-connected apps, subscriptions, in-app purchases, and store release support ✅ Embedded & IoT Solutions ESP32, Arduino, BLE/GATT, MQTT, sensors, firmware integration, device control, telemetry, OTA workflows, and device-to-cloud systems ✅ Enterprise & Third-Party Integrations ERP/CRM integrations, SharePoint, NetSuite, Stripe, Supabase, APIs, automation platforms, cloud services, and custom business workflows ✅ Production Engineering Existing codebase audits, architecture improvements, performance optimization, security hardening, deployment, release issues, and complex debugging How I Work I take ownership of the technical side of a project, communicate clearly, and focus on building solutions that are reliable, maintainable, and ready for real users. Whether you’re starting with an idea, scaling an existing product, or dealing with a system that needs experienced technical direction, I can step in and move it forward. If you’re looking for an engineer who can understand the bigger picture, handle the difficult technical details, and deliver with confidence, send me your project requirements and let’s build it the right way. less -
Hire owebest
Award-Winning Software Development & AI Solutions Company 150+ Experts | 1000+ Projects Delivered | Clients Across 25+ Countries | CMMI Level 3 Company Owebest Technologies Pvt. Ltd. is a trusted technology partner helping startups, SMEs, and enterprises build innovative digital products, automate business processes,...Award-Winning Software Development & AI Solutions Company 150+ Experts | 1000+ Projects Delivered | Clients Across 25+ Countries | CMMI Level 3 Company Owebest Technologies Pvt. Ltd. is a trusted technology partner helping startups, SMEs, and enterprises build innovative digital products, automate business processes, and accelerate growth through modern software solutions and artificial intelligence. From MVP development to large-scale enterprise platforms, our team delivers secure, scalable, and high-performance solutions tailored to your business goals. ⭐ Why Owebest? ✅ Award-Winning & Top-Rated Development Team ✅ AI-First Product Development Approach ✅ Dedicated Developers, Designers & AI Engineers ✅ Agile Development & Transparent Communication ✅ Long-Term Support & Product Maintenance ✅ Enterprise-Grade Architecture & Security ✅ Fast Response & Reliable Delivery ## Artificial Intelligence & Automation ✅ AI Agents & Multi-Agent Systems ✅ OpenAI, Claude, Gemini & LLM Integrations ✅ RAG (Retrieval-Augmented Generation) ✅ AI Chatbots & Virtual Assistants ✅ Workflow & Business Process Automation ✅ OCR & Intelligent Document Processing ✅ Computer Vision & Image Recognition ✅ Predictive Analytics & Custom AI Solutions ## Web & Software Development ✅ Laravel ✅ Node.js ✅ Python ✅ Django ✅ FastAPI ✅ ASP.NET ✅ REST APIs ✅ GraphQL ✅ Enterprise Applications ✅ SaaS Platforms ## Mobile, TV & Emerging Technologies ✅ Flutter ✅ React Native ✅ Android ✅ iOS ✅ Android TV ✅ Apple TV (tvOS) ✅ Wearable Applications ✅ Smart Watch Applications ✅ AR (Augmented Reality) ✅ VR (Virtual Reality) ✅ Cross-Platform Applications ## Frontend Technologies ✅ React.js ✅ Next.js ✅ Vue.js ✅ Angular ✅ TypeScript ✅ Tailwind CSS ## ERP, CRM & Enterprise Solutions ✅ Custom ERP Development ✅ CRM Development ✅ Manufacturing ERP Solutions ✅ Garment ERP Solutions ✅ Inventory Management Systems ✅ Merchant & Vendor Management Platforms ✅ Salesforce ✅ Zoho ✅ Odoo ✅ HubSpot ✅ Klaviyo ## Blockchain & Web3 Development ✅ Smart Contracts ✅ DeFi Applications ✅ NFT Platforms ✅ Cryptocurrency Wallets ✅ Token Development ✅ Ethereum ✅ Solana ✅ Polygon ✅ Binance Smart Chain (BSC) ✅ Web3 Integrations ## Cloud, DevOps & Infrastructure ✅ AWS ✅ Google Cloud Platform ✅ Microsoft Azure ✅ Docker ✅ Kubernetes ✅ CI/CD Pipelines ✅ Linux Server Administration ✅ High Availability & Performance Optimization ## Databases ✅ MySQL ✅ PostgreSQL ✅ MongoDB ✅ Redis ✅ Pinecone ✅ Weaviate ✅ ChromaDB ✅ pgvector ✅ Quadrant ## E-Commerce & CMS ✅ Shopify ✅ WooCommerce ✅ WordPress ✅ Headless CMS ✅ Custom E-Commerce Platforms ✅ Shopware ✅ Magento ## Industries We Serve 🏭 Manufacturing 🏥 Healthcare 🎓 Education ✈️ Travel & Hospitality 🛒 E-Commerce & Retail 🚚 Logistics & Supply Chain 💳 FinTech 🏋️ Sports & Fitness 🏢 Real Estate and Many more.... Let's discuss your project and explore how Owebest can help turn your vision into a successful digital product. less -
Hire diektech
Exceed Your Expectation! Let's Do It Together!! Hi, I'm Elias, founder of Reupped Technologies LLC. Most software projects don't fail because of poor development—they fail because the wrong problems are solved first. That's why every project begins by understanding your business, your users, and the workflow behind...Exceed Your Expectation! Let's Do It Together!! Hi, I'm Elias, founder of Reupped Technologies LLC. Most software projects don't fail because of poor development—they fail because the wrong problems are solved first. That's why every project begins by understanding your business, your users, and the workflow behind the idea before writing a single line of code. For more than 20 years, I've helped startups, entrepreneurs, and established businesses build software that is reliable, scalable, and designed to grow with them. Whether it's a SaaS platform, AI-powered application, mobile app, marketplace, ERP, CRM, fintech product, or custom business system, my focus is always the same: build software that solves real problems while keeping future growth in mind. I handle the complete development process, including: • Product planning • UI/UX • Web development • Mobile apps • Backend architecture • API integrations • AI solutions • Blockchain • Cloud deployment • Long-term support What clients appreciate most isn't just our technical expertise—it's our ability to simplify complex ideas, ask the right questions, and recommend solutions that make sense for the business. If you're looking for a development partner who values communication, thoughtful planning, and long-term success just as much as clean code, I'd be happy to discuss your project. less -
Hire sufyanasmat38
Turn your ideas into scalable digital products and automated business solutions. Fourge is a software engineering team specializing in AI development, automation, LLM applications, SaaS platforms, and modern full-stack development. We help startups, businesses, and enterprises transform ideas into reliable digital...Turn your ideas into scalable digital products and automated business solutions. Fourge is a software engineering team specializing in AI development, automation, LLM applications, SaaS platforms, and modern full-stack development. We help startups, businesses, and enterprises transform ideas into reliable digital products, from MVPs and dashboards to intelligent applications, automation systems, and custom business platforms. Our Core Expertise: AI & Generative AI: AI Agents, LLM integrations, RAG, chatbots, automation Full-Stack Development: Next.js, React, TypeScript, Node.js, REST APIs SaaS & Web Applications: Dashboards, admin panels, CRM, business platforms Workflow Automation: n8n, Zapier, webhooks, API integrations Cloud & Backend: AWS, scalable APIs, databases, cloud infrastructure Mobile Development: iOS, Android & cross-platform applications Embedded & IoT: Firmware, IoT systems, hardware-software integration We handle the complete development lifecycle, including architecture, development, integrations, testing, deployment, and ongoing improvements. Whether you are building a new product, scaling an existing platform, or automating a complex workflow, we provide end-to-end engineering support focused on quality, scalability, and reliability. Have an idea or an existing system that needs improvement? Let's build it. less -
Hire infowider11
✔️ 11+ Years of Professional Experience ✔️ 250 projects Delivered ✔️ Web & Mobile Apps Expert ✔️ Affordable rate with Expertise ✔️ Serving Clients form North America, Europe, Oceania, Middle East I am Shweta Agarwal having 11 years of Experience in IT Service Provider specially serving in Web & Mobile Apps...✔️ 11+ Years of Professional Experience ✔️ 250 projects Delivered ✔️ Web & Mobile Apps Expert ✔️ Affordable rate with Expertise ✔️ Serving Clients form North America, Europe, Oceania, Middle East I am Shweta Agarwal having 11 years of Experience in IT Service Provider specially serving in Web & Mobile Apps Development. In these years I developed more then 250+ Apps which includes - Custom Dashboard, SaaS Platforms, Ed tech Web Apps, Streaming Web Apps, Medical & Healthcare web apps, Desktops solutions, CRM, ERP, Custom Web Apps, Glossary Mobile Apps, Game App development, Dating Apps, and other mobile apps. I deal in from UI Design, Development, Deployment and Maintenance and ongoing support. My Services - ❇️ Mobile App Development ✔️ Flutter App Development ✔️ React Native App Development ✔️ Android App Development ✔️ iOS App Development ✔️ Cross-Platform Mobile Applications ✔️ Firebase Integration ✔️ Push Notifications (FCM & OneSignal) ✔️ Google Maps & GPS Tracking ✔️ Real-Time Chat & Messaging ✔️ Payment Gateway Integration (Stripe, Razorpay, PayPal) ✔️ Offline Data Synchronization ✔️ App Store & Google Play Deployment ✔️ Game Apps Development ✔️ Streaming Apps development ✔️ Dating apps Development ✔️ Other Mobile Apps Development ❇️ Web App Development Technologies ✔️ Node.js ✔️ React ✔️ Express.js ✔️ Laravel ✔️ PHP ✔️ HTML5 ✔️ CSS3 ✔️ JavaScript ✔️ TypeScript ✔️ Bootstrap ✔️ Tailwind CSS ✔️ REST API Development ✔️ GraphQL APIs ✔️ Authentication (JWT, OAuth, Firebase) ✔️ MySQL ✔️ PostgreSQL ✔️ MongoDB ✔️ AWS & Cloud Deployment ❇️Types of Web app I have Build ✔️ Full Stack Development ✔️ Front End Development ✔️ Back End Development ✔️ Custom Web app development ✔️ Marketplace development ✔️ Custom Dash board Development ✔️ Saas Development ✔️ Desktop App Developement ✔️ ERP Development ✔️ CRM Development ✔️ Progressive Web Apps (PWA) ✔️ Responsive Website Development ❇️ AI Development & Automation ✔️ AI Chatbots ✔️ OpenAI GPT Integration ✔️ Gemini AI Integration ✔️ Claude AI Integration ✔️ AI Voice Assistants ✔️ AI Agents ✔️ Custom AI Solutions ❇️ CMS & E-commerce Development ✔️ WordPress Development ✔️ WooCommerce ✔️ Shopify Development ✔️ Magento Development ✔️ Custom E-commerce Solutions ❇️ UI/UX Design ✔️ Figma ✔️ Mobile App UI/UX ✔️ Dashboard Design ✔️ Responsive Web Design ❇️ Industries Served ✔️ AI & Automation ✔️ Healthcare & Telemedicine ✔️ Food Delivery ✔️ E-commerce ✔️ Marketplace Platforms ✔️FinTech ✔️ Logistics✔️ Real Estate ✔️ Education ✔️ Social Networking ✔️ Booking & Reservation Systems ✔️ On-Demand Services ✔️ Travel & Hospitality Whether you need a Flutter or React Native based mobile App, AI Chatbot, SaaS Platform, Marketplace, GPS Tracking System, Healthcare Application, or a complete Full Stack Web Application, I can help you build a reliable, scalable, and future-ready solution. Let's discuss your project and bring your vision to life. Thanks, Shweta less -
Hire programmatis
programmatis programmatis
$100 USD / hour
Your fractional co-founders and digital engine.United StatesYou don’t need another developer. You need a digital co-founder. Most businesses stall out online because they treat technology like a box to check rather than the core engine of growth. If you are looking for a massive, slow-moving agency to bill hours or a junior ticket-taker who needs hand-holding, you are in the...You don’t need another developer. You need a digital co-founder. Most businesses stall out online because they treat technology like a box to check rather than the core engine of growth. If you are looking for a massive, slow-moving agency to bill hours or a junior ticket-taker who needs hand-holding, you are in the wrong place. For nearly two decades, we have stepped in to bootstrap, architect, and scale entire digital businesses from the ground up. We operate at the intersection of high-end software engineering, brutal technical honesty, and holistic business operations. We do not just write code—we build, run, and future-proof your entire digital footprint so you can focus entirely on scaling your vision. No outsourced communication delays, no fluff, and zero technical debt. Just senior-level execution that acts as your unfair competitive advantage. What We Own & Build For You End-to-End Digital Operations: We do not just build the product; we set up, optimize, and run the online architecture of your entire business. Full-Stack SaaS & Web Architecture: From custom software engineering and enterprise hubs to high-converting marketing engines, we build secure, blazing-fast infrastructure designed to scale. Fractional CTO & Strategic Roadmap: We align your core business goals with bulletproof architecture, mapping out growth while keeping you from burning cash on bad tech stacks. Workflow Automation & AI Integration: We eliminate manual drag by embedding modern AI, OCR systems, and smart workflows that smash operational objectives ahead of schedule. Ecosystem Integration & APIs: We connect disparate software seamlessly—from payment gateways and custom APIs to unified CRMs so your data flows effortlessly. Technical Rescues & Stabilization: Inherited a broken codebase or a bloated legacy nightmare? We audit, untangle, and stabilize infrastructure while maximizing site performance and technical SEO. Core Stack & Capabilities: AI & Machine Learning | SaaS Development | Custom API Design | CRM Implementation | Payment Infrastructure | WordPress Solutions | Technical SEO & Conversion Architecture less -
Hire johnnier3
Hi, I'm Johnnie Reece, a Preferred Freelancer and senior full-stack engineer. For 10+ years I've shipped web, mobile, and emerging tech for startups and Fortune 500 companies, on time and without surprises. What I build: - Pixel-perfect web and mobile apps (React, Next.js, React Native, Flutter) scoring 98-100 on...Hi, I'm Johnnie Reece, a Preferred Freelancer and senior full-stack engineer. For 10+ years I've shipped web, mobile, and emerging tech for startups and Fortune 500 companies, on time and without surprises. What I build: - Pixel-perfect web and mobile apps (React, Next.js, React Native, Flutter) scoring 98-100 on Lighthouse - Secure, scalable backends in Node.js/NestJS, Java/Spring Boot, .NET, and Python - High-performance Shopify and WordPress stores, custom apps, and headless setups - Blockchain dApps, smart contracts, and Web3 integrations - Automation bots, scrapers, and AI workflows - AWS infrastructure with 99.99%+ uptime and auto-scaling How I work: Daily updates, live demos, direct access (no middlemen). I act as your technical partner, flagging risks early and writing clean, documented code built to last. Clients come back because I ship faster, cleaner, and more reliably. Ready to start? Message me. I reply fast and can begin immediately. less -
Hire saifsolutions
saifsolutions saifsolutions
$30 USD / hour
Full Stack dev | Web & Mobile Apps, WordPress, WixPakistanWelcome to my profile. I'm Saifullah, a Full Stack Developer and digital product specialist with 8+ years of experience building complex web applications, SaaS platforms, eCommerce systems, CRM solutions, automation workflows, data-driven applications, and mobile solutions for startups, businesses, and growing...Welcome to my profile. I'm Saifullah, a Full Stack Developer and digital product specialist with 8+ years of experience building complex web applications, SaaS platforms, eCommerce systems, CRM solutions, automation workflows, data-driven applications, and mobile solutions for startups, businesses, and growing brands. ⚡ Core Services: Full Stack Development Building scalable web and mobile applications with MERN, React.js, Next.js, Node.js, PHP, Laravel, Python, TypeScript, JavaScript, HTML5, CSS3, Tailwind CSS, Bootstrap, LESS/SASS, REST APIs, authentication, PostgreSQL, MySQL, MongoDB, admin dashboards, business logic, third-party integrations, API development, and production-ready application architecture. WordPress, Wix, Shopify & eCommerce Developing custom WordPress, WooCommerce, Shopify, and Wix solutions, multilingual websites, landing pages, plugin customization, PSD/Figma to WordPress conversion, and complete eCommerce solutions. AI & Data Science Developing production-ready AI, ML, and data solutions including generative AI, LLM integration, RAG, AI agents, NLP, predictive analytics, machine learning, data science, data engineering, data pipelines, data readiness, vector databases, intelligent search, AI-powered workflows, chatbots, process automation, model integration, and intelligent business systems. DevOps, Cloud & DevSecOps Deploying and operating production applications with AWS, Azure, Docker, Kubernetes, Terraform, CI/CD, cloud architecture, infrastructure automation, monitoring, logging, scalability, server configuration, security hardening, DevSecOps, and secure production deployments. CRM, Email Marketing & Business Automation Developing CRM solutions, customer portals, sales pipelines, workflow automation, dashboards, reporting tools, and integrations with HubSpot, Salesforce, Zoho CRM, GoHighLevel, Mailchimp, Klaviyo, ActiveCampaign, Brevo, and MailerLite. UI/UX & Mobile App Development Designing UI/UX, wireframes, prototypes, and user flows in Figma while developing websites and cross-platform React Native applications for Android and iOS. Digital Marketing & SEO Providing SEO, keyword research, local SEO, Google Analytics, Search Console, conversion optimization, performance tracking, blog writing, and digital marketing strategies. Social Media & Content Marketing Managing social media accounts, content strategies, posts, scheduling, community management, paid advertising, content writing, copywriting, blogs, landing pages, email campaigns, and product descriptions. Website Optimization & Performance Optimizing website speed, Core Web Vitals, accessibility, security, analytics, audits, and overall performance. Branding & Creative Design Creating logos, brand identity, social media creatives, banners, brochures, flyers, presentations, business cards, book covers, book layouts, eBook/PDF designs, print-ready files, and other marketing materials. less -
Hire NewJersey
Greetings from Hightstown, New Jersey! Our primary focus is AI Development and Machine Learning solutions, complemented by expertise in Web, WordPress, e-Commerce, Salesforce, Custom Web Application, and Mobile App Development. We cater to businesses of all sizes across diverse industries. Our core competencies...Greetings from Hightstown, New Jersey! Our primary focus is AI Development and Machine Learning solutions, complemented by expertise in Web, WordPress, e-Commerce, Salesforce, Custom Web Application, and Mobile App Development. We cater to businesses of all sizes across diverse industries. Our core competencies include: AI Development & Machine Learning: Custom AI models, neural networks, natural language processing, and predictive analytics. Comprehensive WordPress Services: WooCommerce integration, custom plugin and theme development. Full-Stack Web Development: .NET, PHP, HTML, CSS, JavaScript frameworks, and CodeIgniter. Salesforce.com Development: Certified Salesforce developer (APEX, Lightning Components, integrations). Google Sheets Automation: Custom scripts, add-ons, and workflow automation. Hybrid Mobile App Development: React Native and Flutter solutions for iOS and Android. Responsive Design & Frontend Frameworks: Bootstrap, Tailwind CSS, and modern UI/UX best practices. Backend & Database Expertise: Microsoft Access, MS SQL Server, MySQL, PostgreSQL. E-Commerce Platforms: BigCommerce, Shopify, Magento setup, customization, and optimization. Graphic & Interface Design: UI/UX wireframes, prototyping, and visual branding. Whether you need to harness AI for intelligent automation or build robust, scalable applications, our team is equipped to deliver end-to-end solutions tailored to your requirements. less -
Hire CVInfotech
Custom Software, AI and SaaS Product Studio. 14 Years, One Platform. We have built exclusively on Freelancer.com for 14 years. 500+ projects delivered. 5.0 rating across 500+ reviews. 23% repeat hire rate. This is our only sales channel, so every project gets our full attention, not overflow from an agency spread...Custom Software, AI and SaaS Product Studio. 14 Years, One Platform. We have built exclusively on Freelancer.com for 14 years. 500+ projects delivered. 5.0 rating across 500+ reviews. 23% repeat hire rate. This is our only sales channel, so every project gets our full attention, not overflow from an agency spread across ten platforms. What we build Custom software and SaaS platforms. Full-stack, scalable, and built to hand off cleanly. AI native products. ChatGPT, Claude and Gemini integrations, AI chatbots, voice agents, workflow automation. Ecommerce and marketplaces. Shopify, WooCommerce, multivendor platforms. WordPress, Laravel, React, Next.js and Node.js. Production-grade, not template work. You will work directly with Akash (CTO, 14 years on this platform) and Shubham or Divya (client relationship leads, named by clients in reviews going back years). The same people from your first message to final delivery. No account handoffs, no rotating project managers. 152 professional recommendations back that consistency. 100% in house team. No outsourcing. We treat every project as if we are the ones maintaining it three years from now, because often we are. Some clients have stayed with us since 2012. If your project does not need custom development, we will tell you before you spend the money. Core expertise Frontend: React, Next.js, Vue, Angular, TypeScript Backend: Node.js, Express, NestJS, Laravel, FastAPI, Core PHP Mobile: React Native, Flutter Databases: PostgreSQL, MongoDB, MySQL, Supabase Cloud: AWS, Google Cloud, Docker AI and Automation: OpenAI, Claude and Gemini APIs, RAG pipelines, LangChain, AI agents CMS and Ecommerce: WordPress, Shopify, WooCommerce, Wix, Squarespace, BigCommerce, Magento, Joomla, OpenCart, Weebly, Webflow, GoDaddy Website Builder, headless CMS Payments, Billing and Subscriptions: Stripe, Stripe Connect, PayPal, Razorpay, WooPayments, NOWPayments, ccBill, LemonSqueezy, Peppol Voice and Telephony: VAPI for inbound and outbound call orchestration with function calling, Twilio for phone number provisioning CRM and Automation: HubSpot, Zapier Lead Generation and Landing Pages: HubSpot, Odoo, Webflow, GoHighLevel, Apify, Outscraper Email and Communication: Postmark, Nodemailer, Mailivery, Gmail API, Microsoft Graph API, Yahoo IMAP, SendGrid AI Assisted Development: Cursor, Replit, Bubble, WeWeb, Lovable, Bolt, Base44 Let's talk about what you are trying to build. less
