FastAPI Developers zum Anheuern
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Gesponserte Freelancer
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We are new here on Freelancer BUT old players in our fields. We have debt hands in HTML5, Bootstrap, jQuery, React.js, Next.js, PHP, Python, MySQL, PostgreSQL, Laravel, Django, FastAPI, and more and we are experts in the backend. Don't trust us? Check out our Portfolio & Reviews to build some. <u> Because we need it...We are new here on Freelancer BUT old players in our fields. We have debt hands in HTML5, Bootstrap, jQuery, React.js, Next.js, PHP, Python, MySQL, PostgreSQL, Laravel, Django, FastAPI, and more and we are experts in the backend. Don't trust us? Check out our Portfolio & Reviews to build some. <u> Because we need it the most </u> When someone asks us about who we are and what we do, we use to say "Four minds(left the logical mind and right creative mind) are gathered together to make the web fun and beautiful." And we are not here only to earn some smart money but most importantly we always look to create something innovative and useful. We have some principles for our work, the most important one is the full satisfaction of our client is our first priority... So if you have any great idea or startup, let us help you to take that idea up where you want it to be. Let us use our skills for your project to make it successful. Let's create something Creative!! weniger
codingWWW
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I’m a results-driven Python Developer & Software Architect with 8+ years of experience building scalable, secure, and high-performance applications. I specialise in Website Development, Mobile App Development, Web Applications, SaaS Platforms, and CRM Systems, delivering clean architecture and business-focused...I’m a results-driven Python Developer & Software Architect with 8+ years of experience building scalable, secure, and high-performance applications. I specialise in Website Development, Mobile App Development, Web Applications, SaaS Platforms, and CRM Systems, delivering clean architecture and business-focused solutions. From AI-powered systems to full-scale web and mobile platforms, I help startups and enterprises turn complex ideas into reliable, production-ready products. ✅ Core Specialisations - Website Development – Modern, responsive, high-converting websites - Mobile App Development – Cross-platform & native mobile solutions - Web Applications / SaaS / CRM Development – Scalable SaaS platforms, custom CRM systems, enterprise-grade web apps - Automation & Workflow Systems – N8n, Make.com, Zapier, Zoho, OpenClaw integrations and custom workflow architecture ✅ What I Offer - AI & Machine Learning Solutions - Custom Chatbots & Conversational AI - NLP & Generative AI Applications - AI Agents & Intelligent Workflow Systems - Predictive Models & Data-Driven Solutions ✅ Web Design & Development - Professional Website Design (Modern UI/UX) - Full-Stack Web Development - RESTful & GraphQL API Development - Scalable backend systems (Django, Flask, FastAPI, Node.js) - Software Architecture & System Design ✅ E-Commerce & Shopify - Shopify Store Development & Customization - Custom E-Commerce Platforms - Payment Gateway & Third-Party Integrations ✅ Mobile Application Development - Cross-Platform & Native App Development - API Integration & Backend Connectivity - App Deployment & Optimization ✅ Automation & Engineering - Web Scraping & Data Extraction - Workflow Automation - Microcontroller Programming & Integration - AI-Driven Process Automation ✅ Testing & Quality Assurance - Website Testing - Software Testing & QA - Performance & Security Optimization ✅ Administrative & Data Services - Data Entry & Data Processing - Administrative Support - System & Workflow Organization ✅ My Tech Stack - Languages: Python, JavaScript, C#, Dart, Java, Swift - Backend: Django, Flask, FastAPI, Node.js, NestJS, ASP.net Core - Frontend: React, Vue.js, Next.js, Angular - Mobile: Flutter, Native Technologies - Databases: PostgreSQL, MongoDB - DevOps & Cloud: Docker, Kubernetes, AWS, GCP - AI & ML: PyTorch, Scikit-learn, OpenAI - Automation Platforms: N8n, Make.com, Zapier, Zoho, Lovable, OpenClaw ✅ Why Work With Me? 8+ Years of Proven Experience Clean, Scalable & Maintainable Architecture Strong Communication & Remote Collaboration Business-Focused & Results-Driven Approach On-Time Delivery with High-Quality Standards I don’t just build applications — I architect digital systems that scale, automate, and drive measurable growth. Let’s build something extraordinary together. ✅Message me to discuss your project. weniger
mannanmaan1425
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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. weniger
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, Flutter 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 20+ 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. weniger
xuezhe315
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Need to turn your idea into a working AI product quickly? I help startups and companies go from concept to MVP - fast - and then scale into full, revenue-generating systems. Whether it’s a web-based AI app or an embedded AI device, I build intelligent systems that learn, adapt, and perform. 🌟 What I Build ✅ AI...Need to turn your idea into a working AI product quickly? I help startups and companies go from concept to MVP - fast - and then scale into full, revenue-generating systems. Whether it’s a web-based AI app or an embedded AI device, I build intelligent systems that learn, adapt, and perform. 🌟 What I Build ✅ AI Software ✔ AI Web/Mobile App Development, full SaaS development(fast MVP, scale to real-product) ✔ AI Sales & Marketing Agents - automate customer engagement and follow-up ✔ AI Customer Service Bots - 24/7 chat, voice, and email automation ✔ Voice AI Assistants - for calls, appointments, and orders ✔ CRM & Funnel Integrations - HubSpot, GoHighLevel, Salesforce, Zoho ✔ Custom ML Models - trained for prediction, NLP, and automation tasks ✅ Embedded AI & Electronics ✔ Edge AI Systems – ML models running directly on devices (ESP32, Jetson, Raspberry Pi) ✔ IoT Device Prototypes – connected sensors, controllers, and data pipelines ✔ Embedded Vision & Audio AI – on-device image and voice recognition ✔ Hardware + Cloud Integration – send real-time sensor data to AI dashboards ✔ Rapid Hardware MVPs – prototype boards, firmware, and control apps 🌟 Tech & AI Stack ✔ AI/ML: OpenAI GPT, Claude, Llama, Hugging Face, PyTorch, TensorFlow, scikit-learn ✔ Automation: LangChain, Make.com, Zapier, n8n ✔ Embedded: Arduino, ESP-IDF, Raspberry Pi, Jetson, MicroPython, Edge TPU ✔ Cloud: AWS, GCP, Azure – scalable & secure deployment ✔ DevOps: Docker, Kubernetes, GitHub Actions for CI/CD ✔ Languages: Python, TypeScript, C/C++, Node.js, C# 🌟 Why Work With Me ✔ I build complete systems - from AI logic to working hardware ✔ Fast prototyping for startups - MVPs that can grow into real products ✔ End-to-end delivery - hardware, software, and cloud working together ✔ Startup speed with enterprise-level reliability Let’s turn your idea into a smart AI-powered product - from chip to cloud. Build fast. Launch faster. Scale confidently. weniger
DngPhgNam
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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. weniger
ska234
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<-- Why Choose Me --> As a Senior Full Stack Engineer with over 7 years of experience, I specialize in building scalable, secure, and high-performance Agentic AI-driven web applications. My expertise spans across a wide array of technologies including: - Java / Spring Boot / Spring MVC - React / Vue / Node /...<-- Why Choose Me --> As a Senior Full Stack Engineer with over 7 years of experience, I specialize in building scalable, secure, and high-performance Agentic AI-driven web applications. My expertise spans across a wide array of technologies including: - Java / Spring Boot / Spring MVC - React / Vue / Node / Experss.js / Nest.js - Python / FastAPI / Django - C# / .NET / ASP.NET Core / ASP.NET MVC / Angular - PHP / Laravel / Symfony / WordPress - Docker / Kubernetes - AWS Lambda / AWS EC2 / Azure - GitHub / GitLab Actions - Claude Code / Cursor / Lovable / Bolt.new / V0 Throughout my career, I have delivered mission-critical solutions for over 50+ companies, driving improvements in both operational efficiency and customer experience. I excel in building both frontend and backend systems, from complex database architectures to responsive user interfaces. I have successfully reduced system downtimes by up to 40% through proactive monitoring and optimized performance across various platforms. My experience in AI, system integrations, and cloud services (AWS, Azure) has enabled me to consistently enhance the value of the products I build. <-- My Accomplishments --> - Led the development of a scalable microservices architecture for an e-commerce platform, resulting in a 30% increase in system efficiency and 25% faster load times. - Reduced server costs by 40% by migrating legacy systems to cloud infrastructure (AWS, Azure), achieving more reliable and cost-effective hosting. - Developed and deployed an AI-powered recommendation engine that increased user engagement by 35% and conversion rates by 15% for an e-commerce platform. - Implemented advanced CI/CD pipelines, reducing deployment time by 60% and minimizing errors in production systems for clients in fintech and e-commerce industries. - Successfully integrated payment systems and third-party APIs for 20+ enterprise applications, optimizing payment processing and increasing transaction reliability. weniger
borcerne
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Full-Stack Developer | React, Next.js, Node.js, Web3, Cloud | 10+ Years Experience I am a results-driven Senior Full-Stack Developer with 10+ years of experience building scalable, secure, and high-performance web applications for startups and enterprises. My core expertise spans React, Next.js, TypeScript,...Full-Stack Developer | React, Next.js, Node.js, Web3, Cloud | 10+ Years Experience I am a results-driven Senior Full-Stack Developer with 10+ years of experience building scalable, secure, and high-performance web applications for startups and enterprises. My core expertise spans React, Next.js, TypeScript, Node.js, NestJS, PostgreSQL, Docker, and cloud platforms (AWS, Vercel, Netlify). I specialize in transforming complex business requirements into clean, maintainable, production-ready solutions. What I deliver: Modern, responsive UI/UX with React, Tailwind CSS, TypeScript Robust backend APIs using Node.js, NestJS, and Python (FastAPI) Secure authentication, REST & GraphQL integrations Web3 & blockchain solutions (Solidity, Ethers.js, wallet integrations) Scalable deployments, CI/CD, and cloud optimization Clear communication, ownership, and on-time delivery I have led architecture design, optimized systems by 80%+ performance gains, and collaborated closely with designers, product owners, and cross-functional teams. I dont just write code I solve business problems. If youre looking for a developer who combines technical depth, strategic thinking, and reliability, lets build something great together. weniger
TungC86
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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. weniger
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. weniger
AnjosGustavo
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