Ruby Developers para contratar
Mostrando 36 resultados
Freelancers patrocinados
-
Contratar Ahmed0666
Hey! I’m Muhammad Ahmed, a Full-Stack Developer and Creative UI/UX Designer with 13+ years of freelance experience, helping businesses build high-performance websites, powerful e-commerce stores, and impactful brand designs. I’ve successfully worked with 700+ clients worldwide with a 97% project completion rate,...Hey! I’m Muhammad Ahmed, a Full-Stack Developer and Creative UI/UX Designer with 13+ years of freelance experience, helping businesses build high-performance websites, powerful e-commerce stores, and impactful brand designs. I’ve successfully worked with 700+ clients worldwide with a 97% project completion rate, delivering scalable, modern, and conversion-focused digital solutions. My goal is simple: build fast, beautiful, and high-converting digital products that help your business grow. * Website Development & CMS Solutions (SEO-Optimized) I design and develop modern, fast, and scalable websites that not only look great but also perform, rank, and convert. My expertise includes: • WordPress Development – Custom Themes & Plugin Development • Shopify Store Development – Conversion-Focused E-commerce Stores • Wix & Webflow Design – Clean, Modern Website Experiences • CMS Development & Migration • SEO-Optimized Website Architecture • Core Web Vitals & Speed Optimization • Mobile-First & Responsive Design I build secure, scalable, and performance-driven websites designed to rank higher on search engines and convert visitors into customers. * Graphic Design, Branding & Visual Identity Strong design builds strong brands. I create eye-catching visuals and memorable brand identities that make businesses stand out. Design Services • Logo Design • Brand Identity & Brand Guidelines • UI/UX Design • Mascot & Character Design • 2D Illustrations • T-shirt & Merchandise Design • Social Media Graphics • Marketing Materials Tools I Use • Adobe Photoshop • Adobe Illustrator • Adobe InDesign My designs are clean, modern, and strategically crafted to elevate your brand presence. Why Clients Love Working With Me ✔ 13+ Years of Proven Freelance Experience ✔ 700+ Successful Projects Delivered ✔ Conversion-Focused Design & Development ✔ Fast Communication & Reliable Delivery ✔ Long-Term Client Partnerships Let’s Build Something Great Have a website, e-commerce store, branding project, or custom development idea? Click the (Hire Me) button and let’s discuss your project. I’d love to help you turn your ideas into powerful digital solutions. Looking forward to working with you! Best Regards, Muhammad Ahmed menos -
Contratar sloker18
I am efficient, easy to work with, reliable, and detail oriented. Proven track record with ⭐⭐⭐⭐⭐ reviews, proficient in using Microsoft Office and Google Applications to deliver reports and data automation, such as: - Excel - Word - Powerpoint - Outlook - MS Access - Google Sheet My top priority is to provide a...I am efficient, easy to work with, reliable, and detail oriented. Proven track record with ⭐⭐⭐⭐⭐ reviews, proficient in using Microsoft Office and Google Applications to deliver reports and data automation, such as: - Excel - Word - Powerpoint - Outlook - MS Access - Google Sheet My top priority is to provide a high quality of work, I listen to your needs closely, I am willing to fully devote my time and energy to improve the service offered, with timely, accurate and professional results. Building trust and a long term relationship with customer is my main objective. Thank you for visiting my profile, please do not hesitate to contact me, you can click the "Hire Me/Request Quote" button, I will be happy to have open discussion about your needs. menos -
Contratar saeedme26
Hello, I am Muhammad Saeed. Welcome ! Here's what I can build for you: ✔ Full-Stack Development 👍 CRM Front-end & Back-end project layout design and development 👍 Payment gateway experience for Stripe, Google pay, Paypal, Apple Pay and etc .. 👍 Storefront Project development using third-party API such as shopify and...Hello, I am Muhammad Saeed. Welcome ! Here's what I can build for you: ✔ Full-Stack Development 👍 CRM Front-end & Back-end project layout design and development 👍 Payment gateway experience for Stripe, Google pay, Paypal, Apple Pay and etc .. 👍 Storefront Project development using third-party API such as shopify and etc .. 👍 Landing Page development required dynamic animation and transition for several elements using modern JS frameworks and several additional libraries such as GSAP and etc .. ✔ CMS Development 👍 Development Full-stack site with WordPress. 👍 Shopify theme customization(Horizon, Dawn) for smooth luxury and beaty Shops 👍 Shopify CRO(conversion rate optimization) improvement. 👍 WordPress plugin customization for pixel-perfect design and performance optimization. 👍 Develop variant Landing pages and Portfolios with WordPress and Webflow, etc... ✔ CRM Automation Development 👍 Development Booking site use Custom Modules 👍 Connecting CRM with e-commerce 👍 Implement Automated Responses system with openAI 👍 Implement automated business processes using WhatsApp and OpenA 👍 Implement Shopify customer CRM Automation ✔ AI Model TTS and Integration 👍 Development health business coaching platform use Integration TTS model. menos -
Contratar lazarr4
Thank you for taking the time to view my profile. I enjoy seeing the things I build actually help people, and that is one of the main reasons I’ve continued working in this field. For over 7 years, I’ve been involved in developing e-commerce websites using Shopify and WordPress, as well as SaaS products and various...Thank you for taking the time to view my profile. I enjoy seeing the things I build actually help people, and that is one of the main reasons I’ve continued working in this field. For over 7 years, I’ve been involved in developing e-commerce websites using Shopify and WordPress, as well as SaaS products and various web-based systems. What I Can Help With ✅ Web Design - Responsive Web design - Modern and Clean design - Powerful UI/UX ✅ Shopify App Development - Shopify Theme Development - Custom Shopify Apps (Node.js, React, Laravel) - Shopify API (REST & GraphQL) - App Extensions & Shopify Functions ✅ WordPress Development - WooCommerce E-Store Development - Customize WordPress Theme - WordPress Theme and Plugin Development ✅ Python & Node.js Development - Scalable Marketplace Development with Django and React. - Flexible E-Commerce Platform with Node and Next. ✅ SEO & Digital Growth Optimization - Comprehensive SEO Audit & Growth Strategy - Technical SEO Implementation - Keyword Research & Competitor Analysis - On-Page & Off-Page SEO Optimization - Search Engine Visibility Improvement ✅ AI Integration & Intelligent Solutions - AI Chatbot Development & Customer Support Automation - RAG Architecture with Vector Databases (Pinecone, Qdrant) - AI Agents & Autonomous Workflow Automation - LLM Integration with Web Applications & SaaS Platforms - Serverless AI Architecture & Scalable API Integration It’s not just about making something look good. I always think about the people on the other side of the screen — what they need to know, what might make them hesitate, and what will help them take the next step. For a long time, I thought development work ended once a project was completed. But after working with clients and their services over the long term, my perspective gradually changed. Once a website or system is actually being used, you start to notice things that weren’t obvious during development. “Is this really easy to understand?” “Why does this have to be done manually every time?” “Couldn’t this be made simpler?” I really enjoy finding these small pain points, improving them one by one, and seeing how the experience gets better each time. Even at that scale, I still find it incredibly rewarding to see the systems I’ve built make someone’s work easier and contribute to the steady growth of their business. You don’t need to have everything figured out before reaching out to me. Even if you’re simply thinking, “I’m not sure what I need to build yet,” that’s completely fine. I’ll listen, ask the right questions, and work through the possibilities with you. I don’t want to be someone you work with once and never hear from again. I want to be the person you can come back to whenever something comes up — someone you can confidently think, “Let’s ask them about this.” Being able to watch a client’s business grow while continuing to grow alongside them is, for me, one of the most rewarding parts of this work. menos -
Contratar taraskkorol
I build modern web applications and AI-powered SaaS products from idea to production. My focus is creating reliable, scalable systems that are easy to maintain and ready for real users. I work across frontend, backend, APIs, and AI integrations, helping startups and businesses turn concepts into working products...I build modern web applications and AI-powered SaaS products from idea to production. My focus is creating reliable, scalable systems that are easy to maintain and ready for real users. I work across frontend, backend, APIs, and AI integrations, helping startups and businesses turn concepts into working products quickly and cleanly. What I can help with: • Full-stack web development • AI features and automation • SaaS architecture and MVP builds • API integrations and performance optimization - Mobile App development with AI Integration I value clear communication, realistic timelines, and delivering solutions that actually solve business problems. menos -
Contratar trangtruong1994
Hello! My name is Trang Truong and I am a full-stack developer with over 5 years of experience in building and developing websites and APIs. I have worked on various projects such as video translation and dubbing, online interviews, data crawling, information management websites, e-commerce platforms, gaming live...Hello! My name is Trang Truong and I am a full-stack developer with over 5 years of experience in building and developing websites and APIs. I have worked on various projects such as video translation and dubbing, online interviews, data crawling, information management websites, e-commerce platforms, gaming live stream and communication services, and transport applications. I have experience with technologies such as PHP, Ruby on Rails, VueJS, NodeJS, Lambda-Python, and ReactJS, Python. I am also experienced in server architecture and infrastructure management with AWS and Azure. I am currently working at HeiTech a startup at Finland as a full-stack developer where I am responsible for building and developing websites and APIs for video translation and dubbing projects. Prior to that, I worked at CO-WELL ASIA where I developed products for online interviews, managed applicants, crawled data from recruitment websites in Japan, managed university sports clubs’ websites, developed website plugins for e-commerce sites, provided technical support for Ruby on Rails and ReactJS, and led a team of 4 Ruby developers for gaming live stream and communication services. I also worked as a full-stack developer at Freelance Outsource where I developed products for managing transportation companies including driver app, supervisor app and admin website. Additionally, I worked at CÔNG TY CỔ PHẦN CÔNG NGHỆ WEWE where I developed mobile apps such as Voiz FM and Webooks. And now it has become one of the top audiobook apps in Vietnam. Thank you for considering my profile! menos -
Contratar senbhavin
Founders come to me when they need one engineer who owns the entire product: React, Next.js, Node.js, Python, AI integration, mobile app, and deployment. I build AI-powered SaaS products, MVPs, and full-stack web and mobile applications from architecture to production deployment. In 10+ years, I have shipped...Founders come to me when they need one engineer who owns the entire product: React, Next.js, Node.js, Python, AI integration, mobile app, and deployment. I build AI-powered SaaS products, MVPs, and full-stack web and mobile applications from architecture to production deployment. In 10+ years, I have shipped products used by real businesses: → Built multi-tenant SaaS platforms with schema-based data isolation, role-based access control, Stripe subscription billing, and full admin dashboards deployed and running in production. → Integrated OpenAI, Claude, Azure OpenAI, and LangChain into real products, building AI agents, RAG pipelines, and speech-to-text workflows. → Engineered custom NLP engines with 93.3% entity accuracy, sub‑20ms responses, and scalable processing across 500+ products in a 5‑step state machine. → Developed React Native and Flutter apps with real-time features, third-party payment, and map integrations, delivered simultaneously on iOS and Android. → Engineered real-time architectures using WebSockets, SignalR, and Socket IO for platforms handling 10,000+ concurrent users without performance degradation. → Built and integrated complex third-party systems, DocuSign contract workflows, IMAP email ingestion, government compliance APIs, G2A catalog sync, and multi-system automation pipelines. → Worked across SaaS, healthtech, logistics, e-commerce, sports, fintech, and real estate, adapting quickly to domain requirements without hand-holding. → Maintained Preferred Freelancer badge with Top Rated Freelancer, across 150+ completed projects with long-term client relationships and on-time delivery. My stack covers the full product: → AI & LLM Integrations • OpenAI, Claude, Gemini API Integration • LangChain, Pinecone, Weaviate, FAISS • Custom AI Agents, Intelligent Workflows, RAG Architecture → Frontend Development • React, Next.js (App & Pages Router), Vue.js, Angular • Tailwind CSS, Material UI, Chakra UI, Framer Motion • Redux, Context API, React Query → Backend Development • Node.js, Express.js, Nest.js • Python, Django, FastAPI, Flask • Supabase, Firebase, REST APIs, GraphQL • WebSockets, Socket IO, JWT/OAuth Authentication → Mobile Development • React Native (Expo & CLI), Flutter • Real-time chat & video (Twilio, Agora, WebRTC) • Third-party integrations (Stripe, Maps, Push Notifications) → Database & Cloud • PostgreSQL, MySQL, MongoDB, Redis • AWS (S3, EC2, Amplify), Google Cloud I work best with founders and technical leads who need one reliable engineer to own the build end-to-end. I communicate clearly, flag blockers early, and treat your deadline as mine. Send me a message with your requirements, and we can outline your technical roadmap on a quick call. Bhavin Sen menos -
Contratar melopgabriel
I'm a Full-Stack Web, Mobile, Blockchain & AI Expert with extensive experience building modern, scalable, and high-performing digital products from concept to deployment. I specialize in building AI-powered chatbots and conversational agents — from customer support and lead-qualification bots to RAG-based knowledge...I'm a Full-Stack Web, Mobile, Blockchain & AI Expert with extensive experience building modern, scalable, and high-performing digital products from concept to deployment. I specialize in building AI-powered chatbots and conversational agents — from customer support and lead-qualification bots to RAG-based knowledge assistants — integrating LLM APIs (OpenAI, Claude) into production-ready backends. I help startups, agencies, and businesses transform ideas into production-ready applications by combining clean development practices with the latest AI and automation technologies. Whether you need a custom web platform, mobile application, AI-powered solution, or workflow automation, I deliver reliable, maintainable solutions focused on performance, scalability, and user experience. ⭐⭐⭐⭐⭐What I can help you with ⭐ AI Chatbots & AI Agents ⭐ AI Integration (OpenAI, Claude, Gemini, LangChain, MCP) ⭐ Workflow Automation (n8n, Make.com, Zapier) ⭐ Full-Stack Web Development (React, Next.js, Vue.js, Laravel, Node.js, PHP) ⭐ REST APIs & Third-Party API Integrations ⭐ Mobile App Development (React Native, Flutter, Android, iOS) ⭐ Database Design (PostgreSQL, MySQL, Supabase, Firebase) ⭐ Blockchain Development (Solidity, Go, Flutter) and ICO handling ⭐ WordPress & WooCommerce Development ⭐ Shopify Store Development & Customization ⭐ AWS, Vercel, DigitalOcean & Cloud Deployments ⭐ Performance Optimization & Bug Fixing ⭐⭐⭐⭐⭐Why clients work with me ⭐ Clean, scalable, and well-documented code ⭐Strong communication and regular progress updates ⭐ Detail-oriented with a focus on quality ⭐Fast turnaround without compromising reliability ⭐Long-term support after project delivery ⭐Problem-solving mindset for complex technical challenges I believe great software is more than just writing code—it's about understanding business goals and building solutions that create measurable value. I take ownership of every project and work closely with clients to ensure the final product exceeds expectations. If you're looking for a dependable developer who can build, improve, or automate your business with modern web, mobile, blochain and AI technologies, I'd be happy to discuss your project. menos -
Contratar himanshus642
Desarrollo de IA, Desarrollo de Chatbots con IA, Desarrollo de Aplicaciones para Android, Automatización, PHPI’m a Full Stack Developer with 5+ years of experience helping startups and businesses build scalable, secure, and automation-driven web & mobile applications. I specialize in: ✔ SaaS platforms & dashboards ✔ AI automation & intelligent workflows ✔ FinTech systems & secure payment integrations ✔ API-driven and...I’m a Full Stack Developer with 5+ years of experience helping startups and businesses build scalable, secure, and automation-driven web & mobile applications. I specialize in: ✔ SaaS platforms & dashboards ✔ AI automation & intelligent workflows ✔ FinTech systems & secure payment integrations ✔ API-driven and high-performance applications I help businesses: • Automate manual operations • Build reliable financial platforms • Launch fast, scalable web & mobile products • Integrate AI (Chatbots, OpenAI, RPA) into real workflows Tech Stack: React, Next.js, Node.js, Python, PHP AI & Automation (OpenAI, Chatbots, RPA) FinTech & Payment APIs MySQL, MongoDB, Firebase AWS, Cloud, CI/CD I follow a milestone-first approach, focus on clean architecture, security, and performance, and ensure clear communication throughout the project. If you’re looking for a reliable, verified developer who understands both technology and business goals, let’s discuss your project. menos -
Contratar diogos47
Senior Full-Stack & Embedded System Engineer with 13+ years building production systems across embedded IoT, AI, Web3, mobile, and backend infrastructure. Design and ship software end to end — from bare-metal board bring-up and custom Linux distributions to cloud-connected backend systems and user-facing...Senior Full-Stack & Embedded System Engineer with 13+ years building production systems across embedded IoT, AI, Web3, mobile, and backend infrastructure. Design and ship software end to end — from bare-metal board bring-up and custom Linux distributions to cloud-connected backend systems and user-facing applications. Clean architecture, secure implementation, and delivery grounded in real-world hardware constraints. Comfortable owning the full stack — from kernel space to cloud infrastructure — so projects move without coordination overhead. 🎯 SYSTEMS THINKING - Scalable, modular architecture - Edge cases addressed early - Long-term maintainability over quick patches EMBEDDED LINUX & IoT - Custom Linux distributions (Yocto, Buildroot, BSP) — board bring-up, kernel development, driver integration across x86, ARM, and RISC-V - OTA update infrastructure, A/B partitioning, secure boot, TPM 2.0 encryption, read-only rootfs, fleet provisioning - Peripheral and connectivity protocols — UART, SPI, I2C, CAN bus, USB, BLE, MQTT, cellular, LoRa - Production targets — industrial gateways, POS terminals, medical devices, kiosk appliances, edge compute nodes AI & AUTOMATION - LLM-based systems, RAG pipelines, AI agents - OpenAI API and custom model integrations - Edge AI inference — TensorFlow Lite, ONNX Runtime on embedded targets - Workflow automation and data pipelines BACKEND & WEB - FastAPI, RESTful APIs, authentication systems - React and Next.js applications - Real-time and event-driven architecture - Full LEMP/LAMP stack deployment and optimization MOBILE APPS - API-first mobile architecture - Secure authentication and real-time features - Production-ready builds and deployment WEB3 - Smart contracts in Solidity and Rust - EVM and Solana ecosystems - DeFi protocols, token mechanics, on-chain integrations If you need someone who can take ownership, reduce moving parts, and ship cleanly without constant supervision, we'll work well together. menos
