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Mostrando 70 resultados
Freelancers Patrocinados
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Full-stack Software Engineer with over 7 years of experience building scalable, high-performance web applications, with a specialization in eCommerce and cloud-native systems. Expert in React, Node.js, Shopify, Web3 and AWS/Azure. Delivered production-grade solutions across industries including dental, education,...Full-stack Software Engineer with over 7 years of experience building scalable, high-performance web applications, with a specialization in eCommerce and cloud-native systems. Expert in React, Node.js, Shopify, Web3 and AWS/Azure. Delivered production-grade solutions across industries including dental, education, crypto, AI and logistics, serving thousands of users and streamlining operations. Adept at cross-functional collaboration, legacy modernization, and API integrations. menos
Contratar dnuzhny
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Mkaits Technologies is a leading IT Firm committed to delivering a range of services that span the entire spectrum of IT Industry. Since 2019, we have specialized in providing Blockchain solutions, AI & Machine Learning, Big Data Analytics, Web & Mobile development, E-commerce, and Custom Software Solutions. We...Mkaits Technologies is a leading IT Firm committed to delivering a range of services that span the entire spectrum of IT Industry. Since 2019, we have specialized in providing Blockchain solutions, AI & Machine Learning, Big Data Analytics, Web & Mobile development, E-commerce, and Custom Software Solutions. We excel in blockchain technologies, offering DEX, DAPP, Web3, NFT, smart contracts, and DeFi solutions, using platforms like ETH, BSC, and Polygon. Our web & app development services cover Java, Python, PHP, JavaScript frameworks (Reactjs, Nodejs, Angular, Vuejs), and mobile platforms (React Native, Flutter). We also provide e-commerce solutions with expertise in WooCommerce, Shopify, and Magento. Our custom software solutions include AI, machine learning, and data science, using advanced technologies like TensorFlow and AWS. Whether you need blockchain integration, web & mobile development, e-commerce platforms, or custom software solutions, Mkaits is your trusted partner! menos
Contratar mughiraaa
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I don’t just write code — I build systems that work in the real world. I’m a senior Full-Stack & AI Engineer with extensive experience designing, building, and scaling production-grade software across AI automation, SaaS platforms, data pipelines, and high-volume e-commerce systems. I approach every project with both...I don’t just write code — I build systems that work in the real world. I’m a senior Full-Stack & AI Engineer with extensive experience designing, building, and scaling production-grade software across AI automation, SaaS platforms, data pipelines, and high-volume e-commerce systems. I approach every project with both an engineering and business mindset, ensuring solutions are not only technically sound but also practical, maintainable, and ROI-driven. ✓ What I do best – AI & Automation • LLM integrations (OpenAI, RAG pipelines, embeddings, copilots) • Intelligent workflow automation and data processing • AI-powered internal tools and dashboards – Backend & Data Engineering • Custom APIs and event-driven architectures • PostgreSQL at scale (partitioning, optimization, analytics) • ETL pipelines across Shopify, Salesforce, ERP, and custom systems • Node.js, Python, TypeScript – Frontend Development & UX • Modern, responsive frontends built for real users • React, Next.js, and component-driven UI architecture • Data-heavy dashboards with performance in mind • Clean UI/UX that balances usability, speed, and clarity • Frontends tightly integrated with backend and analytics layers – Mobile App Development • Cross-platform mobile apps (iOS & Android) • React Native, Flutter, and modern mobile stacks • Secure API integration and real-time data sync • Apps designed for performance, stability, and growth – Cloud, DevOps & Reliability • Docker / Podman, CI/CD pipelines, secure deployments • Observability, logging, and performance tuning • Systems designed to scale without constant maintenance ✓ How I work • Clear communication and structured milestones • Production-ready code — no shortcuts or fragile builds • Proactive technical guidance when I see risks or better paths • Long-term thinking: solutions that grow with your business Clients bring me in when systems become too complex, too slow, or unreliable, or when an AI idea needs to become a real, production-ready product — not just a prototype. If you need a senior engineer who can own frontend, backend, data, and AI end-to-end, and deliver clean, scalable results — let’s build it right. menos
Contratar Hubready
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Senior Full-Stack Developer with 13+ years building production systems across AI, Web3, mobile, and backend infrastructure. Design and ship software end to end — backend architecture, AI integrations, mobile applications, and on-chain systems. Clean architecture, secure implementation, and delivery grounded in...Senior Full-Stack Developer with 13+ years building production systems across AI, Web3, mobile, and backend infrastructure. Design and ship software end to end — backend architecture, AI integrations, mobile applications, and on-chain systems. Clean architecture, secure implementation, and delivery grounded in real-world constraints. Comfortable owning the full stack so projects move without coordination overhead. 🎯 SYSTEMS THINKING - Scalable, modular architecture - Edge cases addressed early - Long-term maintainability over quick patches AI & AUTOMATION - LLM-based systems, RAG pipelines, AI agents - OpenAI API and custom model integrations - Workflow automation and data pipelines BACKEND & WEB - FastAPI, RESTful APIs, authentication systems - React and Next.js applications - Real-time and event-driven architecture 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
Contratar diogos47
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danielboggs danielboggs
$60 Dólares / hora
Exceed Your Expectation! Let's Do It Together!!United StatesInteligência Artificial, Depuração , Flutter, Desenvolvimento iOS, Processamento de Linguagem NaturalWe deliver custom software solutions across AI, web, mobile, e-commerce, blockchain, and automation. Our team brings 10+ years of experience designing and developing scalable digital products for startups, growing businesses, and modern online platforms. What we do: • AI automation and business workflow...We deliver custom software solutions across AI, web, mobile, e-commerce, blockchain, and automation. Our team brings 10+ years of experience designing and developing scalable digital products for startups, growing businesses, and modern online platforms. What we do: • AI automation and business workflow systems • Custom web and mobile app development • E-commerce platforms and custom store functionality • API development and backend integration • Blockchain applications and smart contract solutions • UI/UX-driven product implementation • Performance tuning, monitoring, and system improvement • QA, security, and CI/CD processes We believe strong products come from clear communication, practical engineering, and consistent execution. Our goal is to build solutions that are not only functional, but dependable, scalable, and ready for real business use. menos
Contratar danielboggs
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stanislavm37 stanislavm37
$39 Dólares / hora
Full-Stack & Mobile | React • Python • Rust • AWSUkraineReact + React Native + Python + Rust | AWS | APIs | AI 🚀 Senior Full-Stack & Mobile Engineer (React, TypeScript, Python, Rust) If you're building a modern web or mobile app, scaling backend APIs, or adding AI features with AWS infrastructure, I can help. I specialize in: 🔹 Frontend (React / TypeScript) ▪ React...React + React Native + Python + Rust | AWS | APIs | AI 🚀 Senior Full-Stack & Mobile Engineer (React, TypeScript, Python, Rust) If you're building a modern web or mobile app, scaling backend APIs, or adding AI features with AWS infrastructure, I can help. I specialize in: 🔹 Frontend (React / TypeScript) ▪ React (Hooks, Context, Suspense) ▪ Next.js (SSR, SSG, ISR, App Router) ▪ TypeScript (strict typing, scalable architecture) ▪ State: Redux Toolkit, Zustand, React Query ▪ UI: TailwindCSS, Shadcn UI, MUI ▪ Forms: React Hook Form, Zod ▪ Auth: JWT, OAuth, NextAuth ▪ Testing: Jest, RTL, Playwright ▪ Performance, SEO, responsive UI ▪ REST, GraphQL, WebSockets, SSE 🔹 Mobile App Development (iOS / Android) ▪ React Native (Expo + CLI) ▪ Cross-platform apps (iOS + Android) ▪ Swift (native iOS) ▪ Flutter (Dart cross-platform) ▪ Navigation (React Navigation) ▪ State management (Redux Toolkit, Zustand) ▪ API integration (REST / GraphQL) ▪ Push notifications (Firebase / Expo) ▪ App Store & Google Play deployment ▪ OTA updates (Expo EAS) ▪ Performance optimization 🔹 Backend (Python / APIs / Microservices) ▪ FastAPI, Django, DRF, Flask ▪ REST APIs (OpenAPI, versioning) ▪ Auth: JWT, OAuth2, RBAC ▪ PostgreSQL (schema design, optimization) ▪ Redis (caching, rate limiting) ▪ Background jobs: Celery ▪ Queues: SQS, RabbitMQ ▪ File uploads, S3 storage ▪ Stripe, Twilio, SendGrid integrations ▪ Testing: Pytest 🔹 Rust (High-Performance Services) ▪ Axum / Actix ▪ Tokio async systems ▪ High-throughput APIs ▪ SQLx / Diesel ▪ Reliable microservices 🔹 AI Infrastructure / LLM Systems ▪ OpenAI, Anthropic, OSS models ▪ RAG pipelines + embeddings ▪ Pinecone, Qdrant, FAISS ▪ Streaming AI (SSE / WebSockets) ▪ Prompt workflows + structured outputs ▪ Cost control + rate limiting 🔹 DevOps / AWS ▪ AWS: EC2, S3, RDS, Lambda, API Gateway ▪ Docker / Docker Compose ▪ CI/CD (GitHub Actions) ▪ Nginx, Linux, SSL ---------------------------------------------------- ✅ I help teams: ▪ Build MVPs fast ▪ Design scalable APIs & microservices ▪ Improve performance (PostgreSQL & APIs) ▪ Build secure auth systems ▪ Deploy reliable AWS infrastructure ▪ Add AI features (RAG, LLM workflows) ▪ Refactor legacy code into clean architecture ---------------------------------------------------- ⚙ Tech Stack React • React Native • TypeScript • Next.js • Redux Toolkit • Zustand • React Query • TailwindCSS • Shadcn UI • FastAPI • Django • DRF • Python • Rust • Axum • Actix • PostgreSQL • Redis • Celery • Docker • AWS • EC2 • S3 • RDS • Lambda • API Gateway • CI/CD • WebSockets • SSE • REST • GraphQL • Stripe • OAuth • JWT • Microservices • LLM • RAG • Pinecone • Qdrant • OpenAI • Expo • iOS • Android • Firebase • Push Notifications • Swift • Flutter menos
Contratar stanislavm37
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I build AI-driven backend systems that think, learn, and scale. Most companies use AI in fragments—a chatbot here, an automation there. I help startups and enterprises build complete AI ecosystems by integrating Large Language Models (LLMs) into robust, production-grade backend architectures. Whether you are building...I build AI-driven backend systems that think, learn, and scale. Most companies use AI in fragments—a chatbot here, an automation there. I help startups and enterprises build complete AI ecosystems by integrating Large Language Models (LLMs) into robust, production-grade backend architectures. Whether you are building an AI SaaS MVP from scratch or adding RAG-based intelligence to an existing platform, I deliver clean, maintainable, and secure code. What I bring to your project: 1. AI Integration: Expert in OpenAI (o1/GPT-4), Claude 3.5, and Gemini 2.0. I specialize in RAG (Retrieval-Augmented Generation) and AI Agent workflows using LangChain and CrewAI. 2. Backend Excellence: Scalable microservices built with FastAPI, Python, or NestJS. I focus on high-concurrency, security, and performance. 3. Vector Infrastructure: Implementation of Pinecone, Weaviate, or PGVector for efficient data retrieval. 4. SaaS Architecture: Multi-tenant database design, Stripe subscription logic, and RBAC (Role-Based Access Control). Why work with me? - Speed to MVP: I focus on getting your AI SaaS to market in 3–6 weeks without technical debt. - Product Thinking: I don't just follow tickets; I ask "Why?" to ensure the feature actually drives user value. - Security First: I ensure your AI integrations are prompt-injection resistant and GDPR/SOC2 compliant. TECHNICAL STACK: - AI & LLM: OpenAI API, LangChain, RAG, Prompt Engineering, Vector DBs (Pinecone) - Backend: Python (FastAPI, Django), Node.js (NestJS, Express), Go - Databases: PostgreSQL, MongoDB, Redis, Supabase - Cloud & DevOps: AWS (Lambda, ECS), Docker, GitHub Actions, Vercel - Integrations: Stripe, Auth0, Twilio, HubSpot, Slack API menos
Contratar yuriihal
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Arte para Jogos 2D, Design de jogos, Desenvolvimento de Jogos, iPhone, Desenvolvimento de Aplicativos MóveisMy name is Patrick Aguilar, and I’ve been working with clients around the world for over 7 years. I enjoy building software because if I can imagine a solution, I can usually turn it into something real and useful. I strongly believe that the best results come from helping clients achieve their goals, not just writing...My name is Patrick Aguilar, and I’ve been working with clients around the world for over 7 years. I enjoy building software because if I can imagine a solution, I can usually turn it into something real and useful. I strongly believe that the best results come from helping clients achieve their goals, not just writing code, and that mindset has shaped my long term client relationships. Core Skills & Expertise •Python, AI/ML, Chatbots, Telegram Bots, Automation •Web & Backend: Django, FastAPI, Go, C#/.NET, Node.js, REST APIs •Frontend: React, Vue, modern UI development •Mobile Apps: React Native, Flutter, native integrations •Cloud & Integrations: AWS, Severless, Azure, Firebase, third-party APIs, custom workflows menos
Contratar patrickag1214
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I’m a full-stack and mobile app engineer with 11+ years of experience building AI-driven, scalable, and user-friendly web and mobile applications. I help startups and businesses turn ideas into production-ready products quickly and efficiently. I specialize in: - Frontend: React, Next.js, Angular, Vue, Svelte,...I’m a full-stack and mobile app engineer with 11+ years of experience building AI-driven, scalable, and user-friendly web and mobile applications. I help startups and businesses turn ideas into production-ready products quickly and efficiently. I specialize in: - Frontend: React, Next.js, Angular, Vue, Svelte, Tailwind, MUI - Backend: FastAPI, Django, Node.js, NestJS, Spring Boot - Mobile: React Native, Flutter, PWA, Swift - AI & Automation: Gen AI, N8N, Make, Zapier, Twilio, ElevenLabs - Payments: Stripe, Paypal, Authorize.net, Crypto payments (CEX/DEX) - Databases: PostgreSQL, MongoDB, MySQL, MariaDB - DevOps & Cloud: Docker, AWS, CI/CD, Linux deployments I’ve helped clients: - Build AI chatbots that reduce support costs by 40% - Develop cross-platform mobile apps for SaaS products - Automate workflows across CRM, ATS, and payment systems I’m committed to delivering clean, maintainable code, on-time, and helping your project succeed from concept to launch. Let’s build something amazing together. menos
Contratar lucasd139
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zeeshan5121472 zeeshan5121472
$20 Dólares / hora
Full stack | AI | Mobile | Flutter |Web DeveloperPakistan🚀 Welcome & Thank You for Visiting My Profile I’m an experienced Full-Stack Software Engineer with 8+ years of proven success in designing, building, and scaling high-performance solutions across web, mobile, AI, and blockchain. My mission is simple: turn your vision into reliable, scalable, and future-ready...🚀 Welcome & Thank You for Visiting My Profile I’m an experienced Full-Stack Software Engineer with 8+ years of proven success in designing, building, and scaling high-performance solutions across web, mobile, AI, and blockchain. My mission is simple: turn your vision into reliable, scalable, and future-ready technology. I thrive on challenges: transforming concepts into production-ready products, modernizing legacy systems, or creating next-gen AI and blockchain platforms. My approach is collaborative, agile, and transparent — you’ll always know where we are and where we’re heading. ⭐ Core Technical Expertise 🔹 Full-Stack Web Development Frontend: React.js, React + TypeScript, Next.js, Vue.js, TailwindCSS, wordpress. Backend: Node.js, Express.js, Nest.js Databases: MongoDB, MySQL, PostgreSQL, Firebase, Supabase Web Design: UI/UX, interactive prototypes, responsive layouts 🔹 Mobile App Development Cross-Platform: Flutter, FlutterFlow Native Integrations: Kotlin & Swift for deep platform features IoT & AI: Smart, connected ecosystems with real-time data 🔹 Python & AI/ML Development Frameworks: Django, Flask, FastAPI, DRF AI/ML: Custom ML models, LLM integrations, NLP, automation APIs & Data: RESTful APIs, GraphQL, pipelines, scraping 🔹 Blockchain & Web3 Development Smart Contracts: Solidity, Hyperledger, Truffle, Hardhat DApps & DeFi: NFT platforms, decentralized exchanges, staking pools Token Development: ICOs, wallets, governance, security audits 🔹 UI/UX & No-Code Development Design Tools: Figma, Adobe XD, Sketch No-Code Platforms: FlutterFlow, Bubble.io, Builder.io for rapid MVPs 🔹 Cloud & DevOps Providers: AWS, Azure, Google Cloud Scalability: Docker, Kubernetes Automation: GitHub Actions, Jenkins, GitLab CI 💡 Why Work With Me? End-to-End Partner – From ideation to launch & beyond Scalable & Secure – Optimized for performance and reliability AI-Driven Innovation – Automating and enhancing workflows Web3 Expertise – Building decentralized, future-proof systems User-Centric Delivery – Engaging UI/UX with seamless journeys Agile Collaboration – Transparent, milestone-based progress 🌍 Selected Client Success Stories 🚀 Delivered a fintech mobile banking app with biometric login — cut onboarding time by 40%. 🤖 Built an AI-powered healthcare platform using NLP — reduced manual admin by 60%. 🖼️ Launched a Web3 NFT marketplace with staking & wallets — scaled to 10k+ users in 3 months. 🛒 Developed a cross-platform e-commerce app with Stripe & PayPal — boosted sales by 55%. 🤝 Let’s Build Together Whether you’re: Launching a Web3 startup, Developing a next-gen AI product, Building a cross-platform mobile app, or Modernizing your enterprise system, I’ll bring the technical expertise, creativity, and dedication to deliver a world-class, production-ready solution. 👉 Let’s connect and turn your ideas into impact. menos
Contratar zeeshan5121472
