FastAPI Developers For Hire
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Sponsored Freelancers
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Hi, I'm Oleksii a Senior Web & Mobile Developer with over 9 years of experience building fast, scalable, and user-centered applications for startups and enterprises. I specialize in crafting modern digital products that work seamlessly across platforms from responsive web apps to high-performance mobile solutions....Hi, I'm Oleksii a Senior Web & Mobile Developer with over 9 years of experience building fast, scalable, and user-centered applications for startups and enterprises. I specialize in crafting modern digital products that work seamlessly across platforms from responsive web apps to high-performance mobile solutions. My focus is always on clean architecture, maintainable code, and delivering an exceptional user experience. Whether you need a complete product built from the ground up, a CMS-powered website, or a cross-platform mobile app, I bring both technical depth and a practical, results-driven mindset to every project. Core Skills & Expertise - Frontend: React, Next.js, Flutter, React Native - Backend: Node.js, Express, REST, GraphQL, Firebase - CMS & Web Platforms: WordPress, Strapi, Sanity, headless CMS integrations - Mobile: Android (Kotlin), iOS (Swift), Flutter cross-platform apps - Cloud & DevOps: AWS, Google Cloud, Vercel, Netlify, CI/CD pipelines - Other Expertise: API integrations, real-time features, authentication, testing & optimization If youre looking for a reliable engineer who can handle both web and mobile development with precision, scalability, and great communication Id be glad to help bring your project to life. less
Hire AlexVydrin
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I am a seasoned software engineer with a proven track record of delivering cutting-edge, user-centric digital solutions for startups, enterprises, and global brands. My work spans the entire software development lifecycle — from ideation and architecture to deployment and optimization — with a focus on modern web,...I am a seasoned software engineer with a proven track record of delivering cutting-edge, user-centric digital solutions for startups, enterprises, and global brands. My work spans the entire software development lifecycle — from ideation and architecture to deployment and optimization — with a focus on modern web, mobile, and AI-driven applications. Over the years, I’ve mastered the art of blending aesthetics, performance, and scalability, ensuring every project I touch not only meets technical requirements but also drives measurable business growth. 🔹 My Core Expertise Web Development (Frontend & Backend) Modern JavaScript frameworks: React.js, Vue.js, Next.js Backend mastery: Node.js, Django, FastAPI, Laravel Styling & UI: Tailwind CSS, Material UI, custom component libraries REST & GraphQL APIs, real-time applications, PWA development Mobile Development Cross-platform excellence: React Native, Expo High-performance native integrations Pixel-perfect, responsive mobile UI/UX Artificial Intelligence & Machine Learning Natural Language Processing (NLP), computer vision, predictive modeling Custom model training & deployment (TensorFlow, PyTorch, scikit-learn) GPT, Vertex AI, OpenAI API integrations for chatbots, automation & intelligent decision-making Data pipelines, analytics dashboards, AI-powered automation Cloud & DevOps AWS, GCP, Azure deployment & scaling Docker, Kubernetes, CI/CD pipelines, serverless architectures PostgreSQL, MySQL, MongoDB, Firebase 💼 Why Clients Choose Me Proven Delivery: Successfully led 50+ full-scale projects from concept to production. Business-Driven Mindset: I translate technical complexity into real-world business outcomes. Scalable Solutions: Architected systems that support millions of users without compromising performance. Transparent Communication: Clear, proactive, and client-focused at every stage. Whether you’re launching a high-growth SaaS platform, building an AI-powered mobile app, or modernizing your digital ecosystem, I bring a unique blend of deep technical expertise and strategic thinking to turn complex visions into flawless reality. less
Hire xuezhe315
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Thank you for visiting my profile. I am an AI Developer with over ten years of professional experience in software engineering. I began my career as a Full Stack Web and Mobile Engineer, working extensively with technologies such as JavaScript, TypeScript, React, C#, Python, and modern backend and cloud platforms,...Thank you for visiting my profile. I am an AI Developer with over ten years of professional experience in software engineering. I began my career as a Full Stack Web and Mobile Engineer, working extensively with technologies such as JavaScript, TypeScript, React, C#, Python, and modern backend and cloud platforms, and I have successfully delivered scalable web and mobile applications across industries including business, education, e-commerce, and enterprise environments. In recent years, my professional focus has shifted fully toward the artificial intelligence field, where I have built strong, hands-on expertise designing and deploying production-ready AI solutions. I specialize in developing AI-powered systems such as intelligent chatbots, AI agents, and virtual assistants using GPT and modern large language models. My experience includes advanced prompt engineering, fine-tuning and training machine learning models, retrieval-augmented generation (RAG), vector databases, embeddings, semantic search, and contextual memory systems. I design and implement end-to-end AI workflows using frameworks such as LangChain, integrating AI capabilities seamlessly into real-world products and business processes. I also develop AI-driven automation systems, including intelligent bots and workflows for platforms such as WhatsApp, Slack, and Telegram, as well as scalable business automation solutions using tools like n8n and Zapier to improve efficiency and customer engagement. My background as a full-stack engineer allows me to build AI solutions that are not only intelligent but also reliable, secure, and scalable. I am highly experienced in deploying AI systems to cloud environments such as AWS, Google Cloud Platform, and Firebase, and in integrating AI services into web and mobile applications. In addition, I work with AI-enhanced Web3 and blockchain solutions, including smart contracts, decentralized applications, AI-assisted trading bots, and automation within Ethereum, EVM-based ecosystems, and Solana. I am committed to delivering high-quality AI solutions with clear communication, timely delivery, and long-term technical support. If you are looking for an AI developer with a strong engineering foundation and proven AI expertise, please feel free to send me a private message to discuss your project. less
Hire ska234
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I am a passionate AI-Driven Web Solution Expert focused on building modern, scalable, and intelligent digital products. I combine clean UI/UX design, robust backend systems, and AI-powered solutions to create high-performance applications that solve real-world problems. I specialize in turning ideas into...I am a passionate AI-Driven Web Solution Expert focused on building modern, scalable, and intelligent digital products. I combine clean UI/UX design, robust backend systems, and AI-powered solutions to create high-performance applications that solve real-world problems. I specialize in turning ideas into production-ready platforms using cutting-edge technologies and best engineering practices. Core Skills Frontend: React.js | Next.js | HTML5 | CSS3 | Tailwind CSS | Responsive UI/UX Design | Figma Integration AI / Machine Learning: OpenAI APIs | LLM Integration | LangChain | Model Fine-tuning | NLP & Chatbots, Computer Vision Backend: Node.js | Express.js | Python | FastAPI | Authentication & Security | REST APIs & GraphQL Database: MongoDB | PostgreSQL | Supabase | Firebase | Redis DevOps & Cloud: AWS | Azure | GCP | Docker | CI/CD Pipelines | Kubernetes Services I Offer ╰⪼ Full Stack Web Development ╰⪼ AI-Powered Applications ╰⪼ Custom Chatbots & Assistants ╰⪼ SaaS Platform Development ╰⪼ E-commerce Solutions ╰⪼ Data Dashboards ╰⪼ API Development & Integration Why Choose Me? ✔️ Clean & Scalable Code ✔️ Performance Optimized Apps ✔️ Modern UI/UX ✔️ Secure Architecture ✔️ AI Integration Expertise ✔️ Production-Ready Systems "Building intelligent systems that look beautiful and perform flawlessly." less
Hire borcerne
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With over 8 years of experience in full-stack development, I specialize in creating scalable web applications and intelligent automation systems. My expertise spans modern web technologies, AI/ML integration, and cloud infrastructure. I'm passionate about leveraging artificial intelligence to solve complex business...With over 8 years of experience in full-stack development, I specialize in creating scalable web applications and intelligent automation systems. My expertise spans modern web technologies, AI/ML integration, and cloud infrastructure. I'm passionate about leveraging artificial intelligence to solve complex business problems and create innovative solutions that drive real-world impact. My approach combines technical excellence with creative problem-solving. less
Hire huy287
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I collaborate with startups and enterprises to build robust, scalable web applications that deliver measurable business outcomes—from concept to production. I don’t just build features; I deliver production-ready software that stands up to real users, real traffic, and real complexity. As a Full-Stack Developer and...I collaborate with startups and enterprises to build robust, scalable web applications that deliver measurable business outcomes—from concept to production. I don’t just build features; I deliver production-ready software that stands up to real users, real traffic, and real complexity. As a Full-Stack Developer and AI Specialist, I bring a unique advantage: I design and build the complete product end-to-end—clean UX, reliable APIs, secure infrastructure—then layer in AI where it genuinely drives ROI (automation, intelligence, personalization, and speed). From full SaaS platforms and marketplaces to internal tools and admin dashboards, I handle the full engineering lifecycle: architecture, implementation, deployment, monitoring, and iteration. And when AI is part of the product, I make sure it’s not just a prototype—it’s stable, scalable, and integrated into real workflows. 🚀 My Core Expertise & Services 1) End-to-End Full-Stack & SaaS Development (Primary) - Building modern web apps with Next.js, MERN, and Ruby on Rails, Fastapi, Django - SaaS platforms, marketplaces, multi-tenant apps, and admin dashboards - Secure backends with JWT, RBAC, scalable API design (REST/GraphQL), and clean architecture - Production deployment, performance optimization, logging/monitoring, and long-term maintainability 2) AI Systems & Automation (Secondary) - AI Agents & Multi-Agent Systems with LangChain, LangGraph, AutoGen, and CrewAI - RAG Systems using Pinecone, ChromaDB, FAISS, and Qdrant for real-time knowledge retrieval - LLM integration (GPT-5, Claude, Gemini, Llama, Mistral) for customer support, ops, analytics, and internal tools - AI chatbots & voice agents with Twilio, Vapi, Livekit, VoiceFlow, ElevenLabs, and WebSockets 3) Workflow Automation & Integrations - No-code/low-code automation with n8n, Make.com, Zapier - CRM integrations (HubSpot, Salesforce, GoHighLevel) for onboarding, lead scoring, and sales automation - Connecting tools like Slack, Notion, Airtable, DocuSign, and more ✅ Why Clients Hire Me - Full-Cycle Ownership: From planning and architecture to deployment and optimization - Speed to Market: I can deliver an investor-ready MVP in as little as 10 days - Business-First Engineering: I build what moves metrics—revenue, conversion, automation, cost reduction, and retention 📩 Let’s Build Together If you need a developer who can build the full product end-to-end—and bring AI when it meaningfully improves outcomes—click “Invite” or “Send Message” and let’s talk. less
Hire AnjosGustavo
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Expertise in statistical and probabilistic modeling, deep learning, model compression, distributed learning, etc.Expertise in statistical and probabilistic modeling, deep learning, model compression, distributed learning, etc. less
Hire homAfra
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════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Greetings, I am Daniel, a dedicated and seasoned freelancer specializing in computer solutions. With a wealth of experience in Windows platforms, I am deeply committed to delivering top-tier solutions to my clientele. As the founder of Danysys, I boast a...════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Greetings, I am Daniel, a dedicated and seasoned freelancer specializing in computer solutions. With a wealth of experience in Windows platforms, I am deeply committed to delivering top-tier solutions to my clientele. As the founder of Danysys, I boast a proven track record of consistently achieving outstanding outcomes. My expertise spans a wide array of areas including malware removal, software development in various languages such as C, C++, C#, VB, .Net, Pascal, FreeBasic, PureBasic, Python, PHP, PowerShell, AutoIt, InnoSetup, Scraping, and Scripting. Moreover, I am always open to expanding my skill set by learning and incorporating new technologies beyond those listed. My unwavering dedication lies in ensuring job satisfaction and surpassing client expectations. Let us collaborate to breathe life into your project! ════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Saludos, soy Daniel, un freelancer dedicado y experimentado especializado en soluciones informáticas. Con una gran experiencia en plataformas Windows, estoy profundamente comprometido a brindar soluciones de primer nivel a mi clientela. Como fundador de Danysys, me enorgullezco de tener un historial comprobado de lograr resultados sobresalientes de manera constante. Mi experiencia abarca una amplia gama de áreas, incluyendo la eliminación de malware, el desarrollo de software en varios lenguajes como C, C++, C#, VB, .Net, Pascal, FreeBasic, PureBasic, Python, PHP, PowerShell, AutoIt, InnoSetup, Scraping y Scripting. Además, siempre estoy abierto a ampliar mi conjunto de habilidades aprendiendo e incorporando nuevas tecnologías más allá de las enumeradas. Mi inquebrantable dedicación radica en garantizar la satisfacción laboral y superar las expectativas de los clientes. Colaboremos para dar vida a tu proyecto. less
Hire dany3j
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manchothomas9 manchothomas9
$55 USD / hour
Full Stack AI | Automation | MERN Stack | ScrapingUnited StatesAI-Powered Python Back-End Systems • AI-driven backend services using Python, FastAPI, REST APIs • LLM integrations for classification, enrichment, lead scoring, and decision logic • Secure auth, async jobs, background workers, and scalable architecture • Backend systems designed to plug directly into CRMs and...AI-Powered Python Back-End Systems • AI-driven backend services using Python, FastAPI, REST APIs • LLM integrations for classification, enrichment, lead scoring, and decision logic • Secure auth, async jobs, background workers, and scalable architecture • Backend systems designed to plug directly into CRMs and automations ✔️ CRM Automation & System Integration • Deep experience with CRMs (GHL, HubSpot-style flows, custom CRMs) • AI-powered lead handling, enrichment, tagging, and routing • Automated CRM syncing across tools using APIs and webhooks • Clean data models that keep CRMs fast, accurate, and usable ✔️ Automation & Workflow Orchestration • End-to-end automation using n8n, Zapier, Make, and custom workflows • AI-enhanced workflows for leads, onboarding, follow-ups, and ops • Reliable automations that replace repetitive manual processes • Error-handling, retries, logging, and production-grade stability ✔️ Web Scraping & Data Engineering • Advanced scraping systems using Playwright, Scrapy, BeautifulSoup • Anti-bot handling, proxy rotation, and scalable scraping architecture • Clean data pipelines feeding AI models, CRMs, and internal tools • Structured data ready for automation and decision systems ✔️ AI + CRM + Automation Integration • AI-assisted decision systems embedded into real business workflows • API-first integrations between CRMs, platforms, and internal services • Intelligent triggers that turn raw data into automated actions 🤝 Why Work With Me? I don’t just write scripts. I design systems that businesses rely on daily. I focus on long-term reliability, clean architecture, CRM data integrity, and business ROI. I communicate clearly, think proactively, and deliver solutions that continue working after deployment. If you need AI-powered automation, CRM-focused backend systems, or scraping pipelines that actually hold up, I’m ready to help. less
Hire manchothomas9
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Welcome to my profile! 👋 I am Don, a Full Stack Developer with 8+ years of experience building high-performance, modern, and scalable web applications that deliver real business results. I specialize in Full Stack Development using the MERN Stack (MongoDB, Express.js, React.js, Node.js) along with powerful...Welcome to my profile! 👋 I am Don, a Full Stack Developer with 8+ years of experience building high-performance, modern, and scalable web applications that deliver real business results. I specialize in Full Stack Development using the MERN Stack (MongoDB, Express.js, React.js, Node.js) along with powerful technologies like Next.js, NestJS, TypeScript, and JavaScript to create fast, secure, and user-friendly digital solutions. I take pride in crafting clean, maintainable code - focusing equally on front-end excellence and back-end stability. My development approach combines technical precision with creative problem-solving to bring your ideas to life in the most efficient way possible. What I Can Do for You ✅ Build modern, responsive, and pixel-perfect web apps using React, Next.js, Redux, and Tailwind CSS ✅ Design secure and scalable back-end systems with Node.js, Express.js, and NestJS ✅ Develop custom RESTful APIs and GraphQL integrations ✅ Manage and optimize databases - MongoDB, MySQL, PostgreSQL, Firebase, and Supabase ✅ Create seamless E-commerce websites with smooth checkout experiences ✅ Set up CI/CD pipelines, version control with Git, and deployment automation ✅ Ensure top-notch UI/UX, performance optimization, and cross-platform compatibility My Development Focus ✦ Full-Stack Web Application Development ✦ API Design & Integration ✦ Front-End Optimization (React, Next.js, Redux) ✦ Back-End Architecture (Node.js, Express.js, NestJS) ✦ Database Management & Security ✦ Responsive Design using HTML5, CSS3, Tailwind, and Bootstrap ✦ E-commerce & SaaS Platforms Why Work With Me ✨ 8+ years of hands-on experience across front-end and back-end technologies ✨ Reliable, communicative, and deadline-focused ✨ Always write clean, well-structured, and reusable code ✨ Passionate about building intuitive user experiences ✨ Dedicated to long-term client success 🌐 Let’s Build Something Awesome Together Whether it’s a custom web application, e-commerce platform, or modern business dashboard, I’ll bring your vision to life with precision, performance, and purpose. Let’s connect and turn your ideas into a product that stands out! less
Hire dons51
