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Yahia M.
$60/hr
91% Job Success
$10K+ earned
Available now
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👋 I help startups and businesses build and scale full-stack web applications, SaaS products, and AI-powered platforms using React, Next.js, Node.js, and modern API integrations like Stripe, PayPal, and OpenAI. With 5+ years delivering secure, high-performance full-stack solutions, I ensure your product is fast, reliable, and built to scale. 🔹 What I Can Help You With Full-stack web app development (React, Next.js, Node.js, TypeScript) SaaS product development (multi-tenant, subscriptions, dashboards) Payment gateway integrations (Stripe, PayPal, Paddle, LemonSqueezy) REST & GraphQL API development and third-party integrations AI integrations (OpenAI, ChatGPT API, RAG, chatbots, document extraction) Workflow automation (n8n, Zapier, Make, Python scripts) Database design & optimization (PostgreSQL, MySQL, MongoDB) 🛠 Tech Stack Frontend: React, Next.js, TypeScript, Tailwind CSS Backend: Node.js, Express.js, NestJS, Laravel Databases: PostgreSQL, MySQL, MongoDB, Firebase, Supabase Payments: Stripe, PayPal, Paddle, webhooks, subscriptions AI & ML: OpenAI API, Hugging Face, LangChain, vector databases Automation: n8n, Zapier, Make, Python DevOps & Tools: Docker, GitHub, GitLab, Vercel, AWS, REST APIs, Swagger ⭐ Why Clients Choose Me Strong communication & fast response Clean, well-structured, production-ready code Full-stack ownership from database to UI Focus on business results, not just code Reliable delivery & long-term collaboration Let's discuss your project and build something solid.
Yahia M. has worked .
Vanchit K.
$16/hr
100% Job Success
$5K+ earned
Available now
Offers consultations
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🔥 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 ⭐𝗙𝗨𝗟𝗟 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 𝗖𝗬𝗖𝗟𝗘 ⭐ 𝟰+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝘂𝘀𝗶𝗻𝗴 𝗥𝗲𝗮𝗰𝘁 𝗷𝘀, 𝗝𝗮𝘃𝗮𝘀𝗰𝗿𝗶𝗽𝘁, 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁, 𝗣𝘆𝘁𝗵𝗼𝗻, 𝗗𝗷𝗮𝗻𝗴𝗼, 𝗙𝗹𝗮𝘀𝗸🔥 ☛ With 4+ years of extensive experience as a full-stack developer, I have successfully delivered high-performance, scalable, and user-centric applications across various industries. My expertise spans both front-end and back-end technologies, ensuring seamless development workflows and efficient API integrations. 🌐 𝐅𝐫𝐨𝐧𝐭-𝐄𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐌𝐚𝐬𝐭𝐞𝐫𝐲 ✅ React.js & Next.js: Used to focus on component-based architecture, state management, and server-side rendering for optimal performance. ✅ Tailwind CSS & Bootstrap: For crafting responsive, visually appealing UIs, ensuring pixel-perfect designs and mobile-first development. ✅ TypeScript & JavaScript: Proficient in using TypeScript for type-safe development, along with JavaScript for adding complex interactivity and enhancing the user experience. ✅ WebSocket Integration: Experience with Websockets for building real-time features like live chat, notifications, and streaming data, enhancing user engagement. 💻 𝐁𝐚𝐜𝐤-𝐄𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ✅ Python, Django & Django Rest Framework:- Used to handle complex business logic. ✅ Flask & FastAPI: Developed lightweight, high-performance web applications using Flask and FastAPI, focusing on fast routing and minimal overhead. ✅ Database Management: Expert in PostgreSQL, MySQL, MongoDB, and Supabase. I use advanced features like query optimization, migrations, and data integrity checks. ✅ Version Control: Git, GitHub, GitLab 🔗 𝐀𝐏𝐈 𝐃𝐞𝐬𝐢𝐠𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 ✅ Restful APIs: I create and integrate RESTful APIs using Django Rest Framework, Flask, and FastAPI, providing efficient communication between the front-end and back-end. ✅ Third-Party API Integration: I have integrated various third-party services like payment gateways, cloud storage, and analytics tools into web applications, enhancing functionality. ✅ Real-Time Features: Leveraging WebSockets, I build real-time data streaming and communication features, from live dashboards to chat applications. ☁️ 𝐂𝐥𝐨𝐮𝐝 𝐚𝐧𝐝 𝐃𝐞𝐯𝐎𝐩𝐬 𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 ✅ AWS | GCP | Azure: Proficient in cloud architecture, including deployment, scaling, and managing web applications on AWS, Google Cloud Platform, and Microsoft Azure. ✅ Docker & Kubernetes: I use Docker for packaging applications into lightweight containers, and I am familiar with Kubernetes for orchestrating containerized applications. ✅ CI/CD Pipelines: I build continuous integration and delivery pipelines for automatic testing, building, and deployment, ensuring fast iteration cycles and reduced downtime. 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞? ☛ I am passionate about delivering high-quality, scalable applications that transform ideas into reality. I focus on performance optimization, security, and maintaining clean, maintainable code. With a solid understanding of the full development lifecycle, from conceptualization to deployment, I am committed to driving success for every project I undertake. 🤝 Let’s connect to bring your project to life with cutting-edge technology and industry-leading practices. Best Regards Vanchit 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗸𝗶𝗹𝗹𝘀 [𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀] React, React Js, React developer, React Expert, Redux, Firebase, Next.js, Next.js developer, TypeScript, TailwindCSS, Html, CSS, Javascript, Tailwind CSS, RESTful API, Redux Framework, API, front-end developer, back-end developer, full-stack developer, python developer, python expert, python django, python full stack developer, backend developer, django developer, django expert, django react, django rest framework, full stack django developer, python aws, aws
Vanchit K. has worked .
Maaz A.
$15/hr
100% Job Success
$20K+ earned
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Hi, I'm here to build web applications for your business to solve real problems, simplify operations, or handle the pressure of growth. Building a new product or improving an existing one, the objective stays the same: reliable performance and room to grow. With 6+ years of hands-on experience as a Full Stack Developer, I’ve built web and mobile applications from scratch, optimized large SaaS platforms, and integrated complex third-party APIs. I’ve worked extensively with platforms such as Shopify, Amazon SP-API, Stripe, and MUX, delivering reliable, production-ready solutions for startups and growing companies. As a professional web developer, I work across modern JavaScript stacks, selecting the right technology for each project, including MERN, MEAN, and MEVN architectures. Alongside full-stack development, I specialize in business process automation using n8n and Make. I build intelligent workflows that connect your existing tools, automate repetitive tasks, integrate AI, and reduce manual effort across your business. What I offer: * AI & Workflow Automation: n8n, Make, OpenAI, Claude AI, Webhooks, AI Agents, Business Process Automation * Front-End Development: React.js, Next.js, Vue.js, Angular * Back-End APIs & Architecture: Node.js (Express.js, NestJS), Python (FastAPI, Django) * Mobile Apps: React Native * API Integrations: REST APIs, GraphQL, Third-Party APIs, Payment Gateways, Webhook Integrations * Cloud & DevOps: AWS (EC2, Lambda, ECS, Fargate, SQS, SES, S3), Docker, DigitalOcean * Databases: PostgreSQL, MySQL, MongoDB, DynamoDB * Custom Software Solutions: SaaS platforms, internal tools, dashboards, and business applications As a Full Stack Developer, I don’t limit my responsibility to code alone. I take full ownership of the product, communicate clearly, and propose improvements that result in better UX, performance, and outcomes. Why clients choose me: * Clean, scalable codebases with best practices * Proven track record with scalable SaaS apps, enterprise solutions, and startup MVPs. * Timely delivery and clear progress updates * Post-deployment support and performance tuning * End-to-end ownership: from planning to launch You’re not just paying for a website. You’re paying for strategy, experience, problem-solving, and results that actually grow your business. Ready to build something amazing? Let’s connect and make it happen.
Maaz A. has worked .
Siam H.
$40/hr
100% Job Success
$90K+ earned
Available now
Offers consultations
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𝐒𝐞𝐧𝐢𝐨𝐫 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 & 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 | 𝟏𝟎+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | 𝟓𝟎+ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 ━━━━━━━━━━━━━━━━━━ 𝐄𝐍𝐃-𝐓𝐎-𝐄𝐍𝐃 𝐏𝐑𝐎𝐃𝐔𝐂𝐓 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 ━━━━━━━━━━━━━━━━━━ ◆ Startup MVP Development Services ◆ SaaS Product Development Solutions ◆ Custom Web Application Development ◆ AI Agents, LLM Apps & Smart Chatbots ◆ Business Process Automation & Integration ◆ Remote Patient Monitoring (RPM) Systems ◆ Electronic Health Records (EHR) Solutions ━━━━━━━━━━━━━━━━━━ 𝐀𝐈-𝐏𝐎𝐖𝐄𝐑𝐄𝐃 𝐒𝐎𝐋𝐔𝐓𝐈𝐎𝐍𝐒 𝐏𝐎𝐑𝐓𝐅𝐎𝐋𝐈𝐎 ━━━━━━━━━━━━━━━━━━ ◆ ConnexGuard – Problem: Manual staff scheduling and compliance. Solution: Developed an AI workforce management platform. Impact: Reduced operational overhead by 25%. ◆ DM Clinical – Problem: Slow clinical trial recruitment. Solution: Built AI voice agents for outreach, screening, and scheduling. Impact: Faster recruitment with reduced manual effort. ◆ America First Healthcare – Problem: Manual patient engagement and appointment booking. Solution: Created an AI voice assistant for calls and scheduling. Impact: Increased qualified appointments. ◆ SupplementScribe – Problem: Generic supplement recommendations. Solution: Developed an AI-powered personalized recommendation platform. Impact: Delivered evidence-based health guidance. ◆ GaapIQ – Problem: Time-consuming financial research. Solution: Built an AI platform for search and automated memo generation. Impact: Accelerated research workflows. ◆ FLIT – Problem: Inefficient hiring and candidate matching. Solution: Built an AI-powered talent marketplace. Impact: Streamlined recruitment workflows. ◆ LifeWeaver – Problem: Limited personal data insights. Solution: Created an AI analytics platform for wellness and digital footprint tracking. Impact: Enabled privacy-focused long-term analytics. ━━━━━━━━━━━━━━━━━━ 𝐇𝐎𝐖 𝐈 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 𝐒𝐂𝐀𝐋𝐄 𝐅𝐀𝐒𝐓𝐄𝐑 ━━━━━━━━━━━━━━━━━━ Healthcare Operations ◆ Automate patient booking, screening, and follow-ups to save staff time ◆ Reduce manual hospital work with smart automation systems ◆ Help teams handle patients faster and more efficiently Insurance & Billing Work ◆ Simplify insurance-related data handling and coordination ◆ Reduce delays and mistakes in paperwork and communication ◆ Make back-office healthcare work faster and more organized Automation & Efficiency ◆ Automate staff scheduling and daily hospital operations ◆ Build AI tools that handle repetitive tasks automatically ◆ Help healthcare teams work with less manual effort Patient Communication ◆ Automate patient calls, messages, and reminders ◆ Help patients book appointments and get faster responses ◆ Improve communication between hospitals and patients Scalable Systems ◆ Build systems that can grow from small clinics to large hospitals ◆ Make healthcare platforms faster, stable, and easy to manage ◆ Connect different tools and systems into one workflow ━━━━━━━━━━━━━━━━━━ 𝐇𝐎𝐖 𝐈 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 𝐒𝐂𝐀𝐋𝐄 𝐘𝐎𝐔𝐑 𝐁𝐔𝐒𝐈𝐍𝐄𝐒𝐒 ━━━━━━━━━━━━━━━━━━ ◆ Build scalable SaaS platforms from MVP to production-ready systems ◆ Design multi-tenant SaaS architectures for long-term scalability ◆ Integrate AI features, LLM workflows, RAG pipelines & intelligent automation ◆ Optimize backend systems for performance, reliability & scalability ◆ Develop HIPAA-ready healthcare platforms with secure data handling ◆ Build complex role-based systems with real-time workflows & APIs ◆ Reduce technical debt with clean, maintainable engineering practices ━━━━━━━━━━━━━━━━━━ 𝐂𝐎𝐑𝐄 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐈𝐄𝐒 & 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 ━━━━━━━━━━━━━━━━━━ ◆ AI & LLMs: GPT-4, OpenAI APIs, LangChain, RAG Pipelines, AI Agents, Pinecone, FAISS ◆ Backend Development: Python, Django, FastAPI, Node.js, REST APIs, GraphQL, WebSockets ◆ Frontend Development: React.js, Next.js, Modern UI/UX Interfaces ◆ Databases: PostgreSQL, MongoDB, Redis, Vector Databases ◆ Cloud & DevOps: AWS, Docker, CI/CD Pipelines, Serverless Architecture ◆ Security & Compliance: HIPAA-ready systems, RBAC, JWT, OAuth 2.0, SSO ━━━━━━━━━━━━━━━━━━ 𝐋𝐄𝐓’𝐒 𝐁𝐔𝐈𝐋𝐃 𝐒𝐎𝐌𝐄𝐓𝐇𝐈𝐍𝐆 𝐒𝐂𝐀𝐋𝐀𝐁𝐋𝐄 & 𝐇𝐈𝐆𝐇-𝐈𝐌𝐏𝐀𝐂𝐓 ━━━━━━━━━━━━━━━━━━
Siam H. has worked .
NeuroOceans AI
Associated with
NeuroOceans AI
Saurabh K.
$15/hr
100% Job Success
$70K+ earned
Available now
Offers consultations
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📩 𝗟𝗲𝘁’𝘀 𝗯𝘂𝗶𝗹𝗱 𝘆𝗼𝘂𝗿 𝗻𝗲𝘅𝘁 𝗔𝗜 𝗯𝗿𝗲𝗮𝗸𝘁𝗵𝗿𝗼𝘂𝗴𝗵 — 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝘁𝗼 𝗴𝗲𝘁 𝘀𝘁𝗮𝗿𝘁𝗲𝗱 𝘁𝗼𝗱𝗮𝘆. 🔹 Availability: Full-time (𝟰𝟬–𝟱𝟬 𝗵𝗿𝘀/𝘄𝗲𝗲𝗸) | Open to long-term and enterprise AI projects. 🔹 Trusted AI/ML Engineer with 𝟴+ 𝘆𝗲𝗮𝗿𝘀 of Exp. delivering intelligent solutions for startups, SaaS 🔴 I am in the 𝗧𝗼𝗽 𝟭% overall on Upwork. 🔴 I am in the 𝗧𝗼𝗽 𝟮% overall on StackOverflow. 🔹8+ Years of Experience as a Fullstack AI/ML Developer. 🔹 $70K+ Billing done over upwork. 🔹 5404+ Hours on Upwork | 30+ Successful Projects Delivered. 🔹 Worked with Fortune 100 Companies. 🔹 Performance-Driven, Scalable & SEO-Optimized Web Applications. 𝗜’𝗺 𝗦𝗮𝘂𝗿𝗮𝗯𝗵 𝗞𝘂𝗺𝗮𝗿, 𝗮 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗔𝗜/𝗠𝗟 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 & 𝗜 𝗵𝗮𝘃𝗲 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝘄𝗶𝘁𝗵 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗮𝗻𝗱 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁... 🔹 Fine Tuning: Specialized in persona writing, QnA, medical, legal using mistral, llama3 🔹 LLM Synthetic Dataset Generation 🔹 LLM Evaluation Framework 🔹 LLM Deployment: On Cloud platforms like RunAPod, AWS, GCP 🔹 AI Agents / Voice Bots: Proficient with CrewAI/AutoGen, Amazon Polly, Deepgram. 🔹 OS LLM Deployment: On AWS/GCP/RunPod using SkyPilot (vLLM/TGI) 🔹Python (Flask, Fast API, Django, GPT API, Pytest, BeautifulSoup, Selenium) 🔹 Web Scraping, Data Mining, Web Crawling, Data Parsing, Automation, Bots 🔹 Fullstack (JavaScript, MongoDB, Express.js, React, Node.js) 🔹 DevOps - Ansible, Docker, Kubernetes, GitLab CI\CD (AWS/Azure/DO/GCP). 🔹 API integration: Binance API, Telegram API, OpenAI API, BetFair API, OddsJam API, Stripe API. 🔹 API development: RESTful API, Web Services, HTTP Methods, JSON/XML, API Security, OAuth, API Documentation, API Testing, Postman, Swagger, API Gateway, Microservices, Endpoint Design 📌 𝗠𝘆 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲 📌 ⚙️ Web Scraping | Data Mining | Data Extraction ⚙️ Web Automation | Data Cleaning | Data Collection ⚙️ Crypto Trading Automation | Automate Trading Strategy ⚙️ Interactive Brokers Bot | Crypto Trading Bot | Dashboard ⚙️ Data Analysis | Data Visualization | Data Entry ⚙️ Auto Fill Web Forms (Just a click away!) ⚙️ Merge Multiple CSV Files into a Master File ⚙️ Custom Scripting for Your Specific Needs 𝗠𝘆 𝗦𝗸𝗶𝗹𝗹𝘀𝗲𝘁: ⤵️ AI Agents, Voice Agents, CrewAI, AutoGen, Hugging Face, LLaMA 3, Mistral 7B, PEFT, LoRA, QLoRA, Prompt Engineering, RAG Pipelines, LangChain, Vector Databases, FastAPI, Flask, Django, Streamlit, Azure OpenAI, OpenAI API, vLLM, GPTQ, Trading Bots, Binance API, Telegram Bot API, Python, Selenium, Scrapy, Playwright, BeautifulSoup, Regex, REST APIs, Pandas, NumPy, Scikit-learn, PostgreSQL, Firebase, MongoDB, Data Analysis, Data Engineering 📌 𝗔𝗜 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 & 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀:📌 🔹𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 / 𝗩𝗼𝗶𝗰𝗲 𝗔𝗴𝗲𝗻𝘁𝘀: CrewAI, AutoGen, Amazon Polly, Deepgram. 🔹L𝗟𝗠 𝗙𝗶𝗻𝗲𝘁𝘂𝗻𝗶𝗻𝗴 & 𝗧𝗿𝗮𝗶𝗻𝗶𝗻𝗴: PEFT, LoRA, QLoRA, RLHF, DPO with Unsloth, Axolotl, Hugging Face. 🔹𝗢𝗽𝗲𝗻-𝗦𝗼𝘂𝗿𝗰𝗲 𝗟𝗟𝗠𝘀: LLaMA 3, Mistral 7B, Mixtral 8x7B. 🔹𝗙𝗮𝘀𝘁 𝗜𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲 & 𝗦𝗲𝗿𝘃𝗶𝗻𝗴: vLLM, TGI, DeepSpeed. 🔹𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: API-first architecture, Streamlit, Gradio, LangChain, CrewAI. 🔹𝗣𝗿𝗼𝗺𝗽𝘁 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 & 𝗥𝗔𝗚 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀: Custom GPT-4 workflows, Multi-agent orchestration, vector search integration. Quantization & Optimization: AWQ, GPTQ, GGUF, GGML. I believe in creating lasting partnerships with my clients by delivering projects on time and exceeding expectations. I look forward to bringing my technical expertise and passion for software development to your project and making a meaningful impact. Thanks Saurabh Kumar
Saurabh K. has worked .
$12/hr
100% Job Success
$300+ earned
Available now
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I help businesses eliminate repetitive tasks, connect disconnected systems, and scale operations through AI-powered automation and machine learning. If your team is drowning in data entry, switching between tools, or answering the same questions on repeat, I build the systems that fix it. 𝐖𝐡𝐨 𝐈 𝐀𝐦 I am an AI/ML Engineer and Automation Specialist with deep expertise in machine learning, large language models (LLMs), AI agents, workflow automation, and Python development. I don't just write code, I understand business operations, ask the right questions, and deliver production-ready systems that solve real problems. My background spans custom AI/ML solutions, conversational AI, predictive models, backend development, and end-to-end automation pipelines. I have successfully delivered AI-powered platforms for service businesses, agencies, clinics, manufacturing operations, and e-commerce companies. 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 𝟏. 𝐀𝐈/𝐌𝐋 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 – Predictive analytics, classification, recommendation systems, anomaly detection, custom ML pipelines, and fine-tuning LLMs (Llama, Mistral, OpenAI) on proprietary data. 𝟐. 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 – LLM-powered applications, autonomous AI agents, RAG (retrieval-augmented generation), function calling, and tool use with OpenAI GPT-4o, Claude, Gemini, and Llama. 𝟐. 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 – Inbound/outbound voice agents (VAPI, Retell AI, Twilio), AI chatbots for websites, WhatsApp, Slack, and SMS, plus omnichannel AI assistants with unified context. 𝟒. 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 – n8n, Make, and Python-based automations connecting CRMs, databases, email, Slack, and hundreds of other tools. AI-powered workflows using LLMs for classification, extraction, and content generation. 𝟓. 𝐏𝐲𝐭𝐡𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 – RESTful APIs, data pipelines (ETL), web scraping, custom automation scripts, and backends for AI applications using FastAPI, Django, or Flask. 𝐑𝐞𝐚𝐥 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐈 𝐇𝐚𝐯𝐞 𝐁𝐮𝐢𝐥𝐭 𝐒𝐨 𝐒𝐩𝐞𝐜𝐢𝐚𝐥 𝐌𝐨𝐛𝐢𝐥𝐞 𝐌𝐞𝐜𝐡𝐚𝐧𝐢𝐜 – AI-infused mobile application and operational platform including dispatch, customer tracking, automated notifications, and backend dashboards. 𝐀𝐥 𝐀𝐫𝐚𝐛𝐢 𝐂𝐨𝐦𝐩𝐚𝐧𝐲 – Dispatch system for operations and maintenance management with real-time job assignment, status tracking, and reporting. 𝐌𝐲𝐬𝐭𝐢𝐜𝐚𝐥 𝐀𝐠𝐞𝐧𝐜𝐲 & 𝐈𝐧𝐭𝐞𝐫𝐨 𝐃𝐢𝐠𝐢𝐭𝐚𝐥 – AI automation and proposal generation systems that reduced proposal creation time from two days to under two hours. 𝐂𝐥𝐢𝐧𝐢𝐜 𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 – AI chatbot for appointment booking, prescription reminders, FAQs, and patient follow-ups, fully integrated with their scheduling system. 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐑𝐞𝐜𝐨𝐦𝐦𝐞𝐧𝐝𝐚𝐭𝐢𝐨𝐧 𝐄𝐧𝐠𝐢𝐧𝐞 – Custom ML model for product recommendations based on browsing and purchase history. Each of these systems typically includes AI/ML models, AI agents, automation pipelines, mobile apps, dashboards, and backend integrations. 𝐌𝐲 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐒𝐭𝐚𝐜𝐤 - Languages: Python (primary), JavaScript/Node.js, SQL - ML & AI Frameworks: TensorFlow, PyTorch, scikit-learn, Hugging Face, LangChain, LlamaIndex - LLMs: OpenAI GPT-4o, Claude, Gemini, Llama, Mistral - Workflow Automation: n8n, Make, Zapier - Voice AI: VAPI, Retell AI, Twilio - Vector Databases: Pinecone, Weaviate, Chroma, FAISS - Data & ETL: Pandas, NumPy, SQLAlchemy, Airflow - Backend: FastAPI, Django, Flask, Node.js - Databases: PostgreSQL, MySQL, MongoDB, Redis - Cloud: AWS (SageMaker, Lambda, EC2), GCP (Vertex AI), Azure, Docker 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤 I approach every project with a structured, collaborative process: 1- Discovery – I provide a clear checklist of inputs, decisions, and data needed from you. 2- Design & Build – I configure, develop, and test the system. For ML projects, I start with rapid prototyping. 3- Review & Revise – You test. I revise. We iterate until it's right. 4- Launch – I help you execute a clean cutover with minimal disruption. 5- Documentation – You receive clear documentation on what was built and how to maintain it. 𝐈𝐝𝐞𝐚𝐥 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 - You are a great fit if you: - Are a business owner, operations manager, product manager, or technical founder - Have outgrown manual processes or disconnected tools - Need AI/ML models for predictions, classification, recommendations, or anomaly detection - Want AI voice agents, LLM-powered chatbots, or autonomous AI agents - Need workflow automation across CRMs, databases, and messaging platforms - Require custom software, backend systems, or mobile applications - Want clear communication and on-time delivery 𝐋𝐞𝐭'𝐬 𝐓𝐚𝐥𝐤 If you are ready to bring AI/ML-powered automation into your operations, send me a message or invite me to your project. I will reply within 24 hours with thoughtful questions and a clear path forward.
Yousaf M. has worked .
Sergei A.
$20/hr
100% Job Success
$200K+ earned
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Your AI prototype works in a notebook. Making it survive production (async queues, retry logic, latency budgets, real users), - that's where I come in. Backend: - Production-ready APIs (FastAPI, Django, Flask) - Database design and performance tuning (PostgreSQL, Supabase) - Secure authentication, roles, and permissions - Refactoring unstable or experimental AI-heavy codebase - Dockerized deployments and cloud readiness AI and LLM systems - LLM-powered automation - Custom AI agents and assistants (LangChain) - Optimizing AI pipelines for latency, reliability, and cost - Hardening AI features for production use Automation and AI Workflows - AI-driven workflow orchestration (human-in-the-loop, fallback logic) - End-to-end automation using n8n, Zapier, Make - Connecting AI systems to internal services and third-party APIs My tech stack: Claude Code (yes, I use it a lot to save time and be productive!), Python, FastAPI, Django, Flask, PostgreSQL, Supabase, Docker, Git, LangChain, Kubernetes, GCP, Azure. My recent production projects: • AI Support Ticket Processing System Built an end-to-end backend for an AI system that automates ticket routing and resolution. Focused on latency optimization and building reliable fallback mechanisms so the LLM doesn't hallucinate critical client data. (Tech: FastAPI, LLMs, PostgreSQL) • Back-end developer at a Czech fintech company (Fair Play). Developed and shipped critical features in a high-stakes environment on GCP/Kubernetes. Improved test coverage from 60% to 92%, reduced deployment failures by 80%, and optimized services to handle peak loads with zero downtime. Result: Faster feature releases and enhanced system reliability in a compliance-heavy industry. • Part-time Python back-end developer in a foreign company Glasswall Solutions. Worked on unit tests, bug fixes and project features. We were using Azure as our cloud service provider. Dealt with Paramiko Python library. • Custom CRM development at Hyperbach company This is an internal CRM / HRM platform. It includes 3rd-party API integrations, REST API development, and DB management. It is being written from scratch in Python, Flask, Alembic, PostgreSQL, Docker, Vue.js. Delivered a robust internal tool that automated HR processes, saving the team 20+ hours/week in manual work and scaling to support 500+ users seamlessly. • Custom FastAPI backend for SaaS business I designed and implemented a production-grade FastAPI backend for a mid-size internal SaaS tool used by a distributed team. The project required a clean, scalable architecture capable of supporting multiple user roles, growing feature sets, and third-party integrations. The backend was built using an asynchronous, modular structure, allowing the system to handle high loads and remain maintainable as new features are added over time. If you have an AI prototype that needs to become a real product or you need a solid backend built from scratch, let's talk.
Sergei A. has worked .
Aliasgher N.
$35/hr
100% Job Success
$60K+ earned
Available now
Offers consultations
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# 🚀 Senior AI & Full Stack Developer | AI Agents • OpenAI • Claude • LangGraph • Python • Node.js 💬 "Aliasgher delivered an AI-powered solution that automated hours of manual work and exceeded expectations." 💬 "Strong AI engineering skills combined with solid full-stack expertise. Rare to find someone who can build both the AI and the product around it." Hi, I'm Aliasgher — a Senior AI Engineer and Full Stack Developer with 10+ years of software development experience and expertise in building AI-powered applications, autonomous agents, chatbots, workflow automation systems, and SaaS platforms. I help startups and businesses transform ideas into production-ready AI products using OpenAI, Claude, Gemini, LangChain, LangGraph, Python, Node.js, React, and AWS. ## 🤖 AI Development Expertise ### AI Agents & Agentic Workflows * OpenAI Agents SDK * LangGraph * LangChain * Multi-agent systems * Autonomous workflows * Tool calling & function calling * Human-in-the-loop systems ### LLM Applications * OpenAI GPT-4o * Claude * Gemini * DeepSeek * Custom AI assistants * AI copilots * Conversational AI ### RAG & Knowledge Systems * Retrieval-Augmented Generation (RAG) * Vector databases * Pinecone * Weaviate * Qdrant * Semantic search * Enterprise knowledge bases ### AI Automation * Business process automation * AI customer support agents * AI appointment setters * AI lead qualification systems * CRM integrations * Workflow automation ## 💻 Full Stack Engineering ### Backend * Python (FastAPI, Django, Flask) * Node.js * Express.js * NestJS * REST APIs * GraphQL * WebSockets ### Frontend * React * Next.js * TypeScript * Tailwind CSS * Redux * Modern UI development ### Cloud & Infrastructure * AWS * Docker * CI/CD * Serverless Architecture * PostgreSQL * MongoDB * Redis ## 🏆 Experience * Top Rated Plus on Upwork * 1500+ Upwork Hours * 26+ Successful Projects * Master's in Computer Science * 10+ Years of Professional Development Experience ## ✅ What I Can Build * AI Chatbots * AI Customer Support Agents * AI Appointment Scheduling Systems * AI Voice Agents * RAG Applications * AI SaaS Platforms * Internal AI Tools * AI Workflow Automation * Custom GPT Solutions * Multi-Agent Systems * AI-Powered CRMs * Knowledge Base Assistants ## Why Clients Work With Me * AI-first product development approach * Production-ready architecture, not just prototypes * Strong software engineering foundation * Scalable cloud deployments * Clean, maintainable code * Fast communication and reliable delivery Whether you need an AI agent, RAG system, chatbot, automation platform, or a complete AI-powered SaaS product, I can help take it from idea to production. 📩 Let's build your next AI product.
Aliasgher N. has worked .
Hassaan Z.
$30/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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⭐Top Rated Plus | Top 3% Globally on Upwork in Full Stack SaaS and AI Development. If you shoot me a invitation or direct message i'll send you a personalized loom video back on how i may be able to help you! Your AI SaaS works in the demo, then breaks the moment real users hit it. I build production ready web applications and Full Stack SaaS platforms that don't, the kind running production right now, moving 10,000+ messages a day at 99% delivery and saving one client $200k+ a year. From AI automation and RAG systems that don't hallucinate to scalable backend systems, multitenant architectures and secure enterprise software,I build products that stay reliable as they grow. And where it matters most, in regulated healthcare and fintech, that's the work I'm known for. Over the last 10+ years, I've delivered Full Stack Development FinTech, Health Tech, HR Tech and Ed Tech, designing and delivering SaaS Development projects, AI-powered applications, MVP Development, workflow automation systems, cloud-native applications and enterprise platforms. As a Top Rated Plus on Upwork with 1000+ billed hours and a consistent 5 star track record, I focus on building systems and products that remain reliable as your user base grows. WHAT MAKES ME DIFFERENT: Most developers focus on delivering features. I focus on delivering systems that can operate in production. Before writing code, I help founders and product teams make the right technical architecture, system architecture, scalability, AI integration, compliance, infrastructure and long term maintainability decisions. My focus is delivering scalable architecture and production ready software rather than simply shipping features. Whether you're launching MVP, modernizing a legacy web application, building an AI SaaS platform, creating a new software product, or integrating AI into existing business, I help define the technical roadmap and execute the entire product development lifecycle. My work frequently involves: • AI native SaaS products, SaaS Development, multi- tenant platforms • AI Agents, AI Voice Agents, AI Automation • Retrieval-Augmented Generation (RAG) systems, knowledge assistants, LLM applications • Healthcare SaaS & HIPAA-compliant web applications • Fintech platforms & payment systems • Enterprise API Development & API Integration • Cloud Infrastructure, DevOps & Backend Development What Client Says: "This developer did an outstanding job and exceeded our expectations in every way. They quickly became a lead developer, taking ownership of complex requirements and delivering high-quality, well-structured work consistently." "Very responsive, professional, and communicative. Will be working with them again soon!" WHAT I BUILD FOR YOU: → AI-powered SaaS platforms, Full Stack Web Applications, startup MVPs, MVP Development, multi-tenant SaaS applications, enterprise software, Stripe billing, RBAC, ABAC, audit logs, row-level security. → AI Agents, AI Voice Agents, AI Automation, RAG systems, knowledge assistants, AI copilots, custom LLM workflows. → Full-Stack Web Applications Development using Next.js, React, TypeScript, Node.js, Python, FastAPI, scalable backend systems and cloud-native architectures → Healthcare SaaS solutions including HIPAA-compliant web applications, patient engagement systems, secure healthcare workflows, and enterprise software. → FinTech software products including payment systems, subscription platforms, financial dashboards, transaction processing and compliance-focused architecture. → API Development, Backend Development and API Integration with OpenAI, Stripe, Twilio, HubSpot, Salesforce, CRMs, ERPs and third-party SaaS platforms. → Workflow Automation using n8n, AI-powered business processes, customer support automation, onboarding automation, and sales automation → Cloud Infrastructure, AWS deployments, Docker, CI/CD pipelines, monitoring, production rollouts, and scalable backend systems CORE STACK & KEYWORDS: Full Stack Development, Web Application Development, SaaS Development, AI SaaS, Platform Development, Technical Architecture, System Architecture, Database Architecture, Backend Development, Software Architecture, Scalable Architecture, Enterprise Software, Cloud Infratructure, Product Development, Next.js, React, TypeScript, Node.js, Nest.js, Python, FastAPI, Django • Open AI, GPT-4, Claude, Gemini, LangChain, LangGraph, AI Agents, AI Voice Agents, RAG, Vector Database, pgvector, Pinegone • PostgreSQL, Supabase, MongoDB, Redis, Firebase • AWS, Docker, Kubernetes, CI/CD • Stripe, Twilio, HubSpot, Salesforce, • Multi-tenant SaaS, MVP Development, SaaS Architecture, Workflow Automation, HIPAA, SOC2, PCI-DSS, OAuth2, RBAC, ABAC, Row Level Security
Hassaan Z. has worked .
Tensor Labs
Associated with
Tensor Labs
Abid H.
$30/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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I build production AI agents, RAG systems, and workflow automation on the Large Language Models such as Claude, OpenAI, Gemini, Grok APIs. Not demos that die after the pitch meeting: systems with guardrails, human review steps, and escalation logic that run every day without babysitting. Over the past few years I've shipped autonomous AI agents, RAG pipelines, chatbots and conversational AI workflows running live on WhatsApp, Instagram, and Line, plus full AI-native products: web apps, custom CRMs, and analytics dashboards designed around LLMs from day one instead of having AI bolted on later. Everything in TypeScript/Node.js or Python, deployed on GCP and AWS. One recent build: a contract analysis pipeline for the music industry. Specialized agents for Producer, Mixer, Featured Artist, and Publishing deals run under a LangGraph supervisor on Cloud Run. Document review that took hours per deal now takes minutes. Problems clients bring me: - Business process automation: lead capture and qualification, CRM updates, email and document processing, wired together with n8n, custom code, and LLM APIs. Anything that writes to your real data goes through an approval step first. - Customer-facing chatbots and support agents on WhatsApp, Instagram, Line, and web, with real memory, answers grounded in your own knowledge base so they don't invent things, and clean handoff to a human when confidence drops. - AI agents and multi-agent systems for workflows too complex for a single prompt, built on LangGraph and the Claude Agent SDK. - RAG pipelines and semantic search at production scale with Pinecone, PGVector, and ChromaDB. - CRM and ERP integrations: GoHighLevel, Follow Up Boss, Gmail and Google Workspace, third-party APIs. - AI-native SaaS end to end. I built and shipped ReserveNova, an AI booking platform for hospitality. - Document intelligence: contract analysis, invoice and data extraction, real-time LLM-powered dashboards. How I work is simple. I scope the architecture before writing a line of code, get you a working prototype within 48 to 72 hours so you can validate direction early, then build toward production with proper error handling, evaluation, logging, and observability. Everything runs in your accounts, documented well enough that your team can maintain it without me. You own it all at handoff. My background runs deeper than the LLM wave: years of hands-on NLP work with transformers and spaCy before agents became the trend. That's why my pipelines handle messy real-world language instead of breaking on it. Stack: TypeScript/Node.js, Python, React/Next.js, Claude API, OpenAI API, LangGraph, LangChain, LlamaIndex, CrewAI, MCP, Pinecone, PGVector, ChromaDB, n8n, GCP Cloud Run, AWS Lambda, Docker. I keep my project load small so each build gets real attention. If you're building an AI product from scratch, adding agents or RAG to an existing app, or drowning in a document-heavy workflow, send an invite and tell me what you're trying to build. I'll tell you honestly whether it's a fit.
Abid H. has worked .
NexhubAI
Associated with
NexhubAI