⭐⭐⭐⭐⭐ AI Engineer, AI Developer, RAG , AI Agent, AI Automation Expert, LLMs, RAG Top Rated Plus AI Developer and AI Agent Developer building production-ready AI agents, RAG systems, AI chatbots, AI voice agents, AI automation systems, and AI-powered SaaS applications. If you need an experienced AI Developer who can take your AI product from idea to production, I can help. I have 4+ years of focused experience in artificial intelligence, generative AI, AI agents, RAG systems, LLM applications, AI chatbots, voice AI, and workflow automation, backed by 9+ years of full-stack software development experience. As a full-stack AI Developer and AI Agent Developer, I build complete AI products not just basic ChatGPT integrations. I can design the architecture, develop the backend, connect business data, build AI agents, integrate APIs, create dashboards, automate workflows, deploy to the cloud, and optimise the system for accuracy, speed, cost, and scalability. 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 • AI Agent Development and multi-agent systems • Generative AI and LLM application development • OpenAI API, ChatGPT API, Claude API, and Gemini API integration • AI chatbot and RAG chatbot development • AI voice agent development • AI-powered SaaS development • AI workflow and business-process automation • AI assistants, copilots, and customer-support agents • Document AI and intelligent document processing • Semantic search, embeddings, and knowledge bases • Vector database integration • Python, FastAPI, and API development • Function calling, tool calling, structured outputs, and MCP • Prompt engineering, testing, deployment, and performance optimization • Improvement and scaling of existing AI applications 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐁𝐮𝐢𝐥𝐝 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 Intelligent AI agents that understand requests, retrieve information, call APIs and tools, update databases, execute functions, and automate complete business workflows. 𝐀𝐈 𝐂𝐡𝐚𝐭𝐛𝐨𝐭𝐬 & 𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 AI chatbots and RAG systems for websites, SaaS platforms, mobile apps, WhatsApp, CRMs, internal tools, PDFs, contracts, manuals, policies, databases, and private company knowledge. I handle document processing, chunking, embeddings, vector search, hybrid retrieval, reranking, metadata filtering, and grounded response generation. 𝐀𝐈 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬 Inbound and outbound AI voice agents for appointment booking, lead qualification, reception, sales, customer support, reminders, follow-ups, and call automation. 𝐀𝐈 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 AI automation across CRMs, email, calendars, forms, databases, messaging platforms, n8n, Make, Zapier, GoHighLevel, webhooks, and custom APIs. 𝐀𝐈 𝐒𝐚𝐚𝐒 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 Complete AI SaaS products with authentication, subscriptions, dashboards, databases, payments, analytics, AI agents, AI workflows, API integrations, and cloud deployment. 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐀𝐈 Systems that extract, classify, summarize, validate, and analyze information from PDFs, contracts, invoices, reports, forms, spreadsheets, and images. 𝐀𝐈 𝐒𝐚𝐥𝐞𝐬 & 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐀𝐠𝐞𝐧𝐭𝐬 AI agents that qualify leads, answer customer questions, update CRM records, schedule meetings, send follow-ups, create tickets, and escalate complex requests. 𝐌𝐲 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 AI & LLMs: OpenAI, ChatGPT, GPT-4o, GPT-5, Claude, Gemini, Llama, Mistral, DeepSeek AI Agents: LangChain, LangGraph, CrewAI, AutoGen, OpenAI Assistants API, function calling, tool calling, structured outputs, MCP RAG & Vector Search: Agentic RAG, embeddings, semantic search, hybrid search, reranking, Pinecone, Qdrant, pgvector, ChromaDB, Weaviate, FAISS, Supabase Vector Voice AI: Retell AI, Vapi AI, Twilio, ElevenLabs, Deepgram, Whisper, OpenAI Realtime API Automation: n8n, Make, Zapier, GoHighLevel, webhooks, API automation, human-in-the-loop workflows Development: Python, FastAPI, Django, Flask, Node.js, React, Next.js, TypeScript, REST APIs, GraphQL, WebSockets Databases & Cloud: PostgreSQL, MongoDB, MySQL, Redis, Firebase, Firestore, Supabase, AWS, Azure, GCP, Docker, CI/CD, GitHub Actions As your AI Developer and AI Agent Developer, I can manage the complete AI product lifecycle from architecture and development to integration, testing, deployment, monitoring, and scaling. Send me your idea, current application, workflow, documents, APIs, or project requirements. I will review them and recommend the most practical AI development approach. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 𝐭𝐨 𝐅𝐢𝐧𝐝 𝐌𝐞 AI Developer | AI Agent Developer | Full-Stack AI Developer | Python AI Developer | Generative AI Developer | Agentic AI Developer | OpenAI Developer | AI Chatbot Developer | RAG Developer | LLM Developer | LangChain Developer | LangGraph Developer | AI Automation Developer | AI SaaS Developer | Voice AI Developer | AI Voice Agent Developer | OpenAI API Developer | ChatGPT Developer | AI Integration Developer | AI Software Developer

I’m a Game Developer specializing in Unity and Unreal Engine, building polished, scalable games and interactive experiences for PC, mobile, WebGL, VR, and mixed reality. With 7+ years of experience, I help studios, startups, and brands turn ideas, prototypes, and existing projects into production-ready experiences with a strong focus on gameplay quality, performance, scalability, and maintainable development. I can help whether you need a complete game developed from scratch, an existing project improved or optimized, multiplayer functionality, AI systems, platform integrations, or an immersive AR/VR experience. 🎮 Game Development • Unity & Unreal Engine development • C# and C++ programming • Gameplay systems and mechanics • Player controllers and interaction systems • UI/UX implementation • Mobile, PC and WebGL development • Prototyping and MVP development • Performance optimization • Build preparation and deployment • API and SDK integrations 🌐 Multiplayer & Backend • Photon PUN / Photon Realtime • PlayFab • Steamworks • Matchmaking and lobby systems • Multiplayer synchronization • Networking optimization • Player progression and backend integration 🤖 AI & Computer Vision • Game AI and behavior systems • AI API and LLM integration • OpenCV and computer vision • Voice-enabled systems • Text-to-speech integration • Lip-sync systems • AI-powered interactive experiences 🕶️ AR / VR / XR • Meta Quest / Oculus development • AR Foundation • ARCore • Vuforia • Mixed Reality experiences • Interactive 3D applications • VR training and simulation experiences 🛠 Technical Stack Unity • Unreal Engine • C# • C++ • Python • Photon Networking • PlayFab • Steamworks • OpenCV • AR Foundation • Vuforia • Git Selected Experience 🚀 Developed a multiplayer 3D party game with networking, AI-controlled players, gameplay systems, animation, and multiple interactive levels. 🚀 Worked on performance optimization involving rendering, memory usage, loading, asset management, and platform-specific improvements. 🚀 Built AI, computer vision, VR/XR, multiplayer, and real-time interactive systems across a variety of production and prototype projects. I focus on clean implementation, clear communication, reliable delivery, and building systems that can continue scaling as the project grows. If you’re building a game or interactive experience and need someone who can handle both the core development and more advanced systems such as multiplayer, AI, computer vision, or XR, feel free to send me your project details.

🚀 Executive/Administrative Virtual Assistant | Data Entry | Project Management Support | Customer Service | Xero Bookkeeper Virtual Assistant Are you looking for a reliable Virtual Assistant who can keep your operations organized, support your customers, and help your business run smoothly? I'm Anna Liezl Diego, a highly organized Virtual Assistant with 10+ years of experience in administrative support, customer service, project coordination, data entry, and business operations. I have successfully supported entrepreneurs, startups, and growing companies by handling day-to-day tasks that save time, improve efficiency, and allow business owners to focus on growth. What I Can Help You With: ✅ Virtual Assistance & Executive Support ✅ Customer Service (Email, Chat & Phone Support) ✅Freight/Logistics Operation Virtual Assistant ✅ CRM Management & Data Entry ✅ Project Management & Team Coordination ✅ Calendar & Inbox Management ✅ Lead Generation & Online Research ✅ Airtable, Trello, Asana & CRM Systems ✅ Google Workspace & Microsoft Office Suite ✅ Social Media Management & Advertising Why Clients Hire Me: ✔ Detail-Oriented & Highly Organized ✔ Strong Communication Skills ✔ Fast Learner & Problem Solver ✔ Dependable and Proactive ✔ Ability to Manage Multiple Projects Efficiently ✔ Committed to Delivering Quality Work On Time Client Feedback: ⭐⭐⭐⭐⭐ "She rose to the challenge and did an excellent job. She is precise and quick in her work." — Claire N. ⭐⭐⭐⭐⭐ "Anna has been great with a can-do attitude and flexibility." — Tony ⭐⭐⭐⭐⭐ "Her turnaround time is unbelievable. I HIGHLY recommend working with Anna." — Danny ⭐⭐⭐⭐⭐ "Excellent freelancer, have worked on multiple projects with her." — Gideon I am currently available for long-term, short-term, part-time, and full-time opportunities. If you're looking for a dependable Virtual Assistant who can help streamline operations, improve customer satisfaction, and keep your business organized, let's connect. 📩 Send me a message and let's discuss how I can support your business goals.

Great software starts with a problem worth solving, and a developer who gets your business, not just your codebase. I'm Zain, a full-stack software developer specializing in custom software development, SaaS platforms, and AI integration. The people who hire me usually fall into three groups: • Founders without a technical background who have a clear product vision and need an MVP built properly • CTOs and engineering leads who need extra senior capacity without growing the team • Operators whose day-to-day runs on messy processes that no off-the-shelf tool can untangle My work spans healthcare, fintech, construction, legal, and real estate, including regulated environments where compliance isn't a nice-to-have and mistakes carry real cost. Whether it's a product that exists only as an idea, an in-house team running past capacity, or operations that generic software can't handle, I've shipped solutions for each of these situations many times over. What I build: • Custom software and SaaS products designed to scale from day one • AI configured into actual business workflows: LLM integration, RAG pipelines, AI chatbots, AI agents • Web application development and mobile app development • Cloud infrastructure and DevOps across AWS, GCP, and Azure • Full-stack engineering with React, Next.js, Node.js, Python, and TypeScript The feedback I hear most often: I take the time to understand the problem, I ship what was agreed, and clients don't need to chase me for updates. If you know that cutting corners on the first build ends up costing double, and you want software done properly, we'll work well together. Send me a message and let's talk. Services: Custom software development SaaS development Enterprise software Web application development Mobile app development Full-stack development Systems integration Workflow automation Business process automation Product development - MVP build Platform Modernisation - rebuild API development - API integration Backend development Frontend development AI integration AI automation AI development LLM integration RAG (Retrieval-Augmented Generation) AI chatbot development Document AI AI-powered workflows Prompt engineering AI agents Data extraction automation React Next.js Node.js Python TypeScript JavaScript REST APIs GraphQL PostgreSQL AWS Google Cloud (GCP) Microsoft Azure Vercel CI/CD Cloud / DevOps Docker Terraform Cloud architecture Infrastructure as code DevOps Deployment automation Fintech Software - PCI Operations platform Internal tools CRM/ERP custom build Security best practices Compliance-ready systems Audit-friendly systems RBAC (Role-based access control) Data pipelines Dashboards & reporting Process digitization Scalability - performance optimisation Reliability engineering Monitoring - observability HIPAA compliance - healthcare software Tool consolidation Onboarding automation

I build SaaS products and AI features that ship to real users, not demos. Most of my work sits in the same place: a solid full-stack app, clean APIs, and AI workflows that have to be reliable once they are live. In one of my recent projects, CounselOps, I owned a production SaaS platform end-to-end. Real-time dashboards, role-based access, AI-generated structured analysis with validation, and audit trails on sensitive actions. Stack covered TypeScript on the front, AWS services on the back, and AI wired into an actual business workflow instead of a chatbot wrapper. In another recent project, FullFrame, I led full-stack delivery of an AI SaaS used by entertainment teams. Long documents go in, structured coverage reports come out through multi-step AI pipelines. The hard part was reliability: parallel processing, consistent outputs, and failing safely when a section went wrong. I also build multi-tenant and multi-portal products like MMKEN, with Next.js frontends, payments, and operational dashboards. Across projects, I work in React, Next.js, TypeScript, Node/NestJS, Python/Django, PostgreSQL or MongoDB, and cloud deploy on AWS, Azure, or GCP. If you need a SaaS feature built from scratch, an AI workflow inside an existing product, or a dashboard/API layer that has to stay maintainable, I can take it from plan to production. I am available in GMT/EST overlap and fine with an NDA. Portfolio: upwork.farhan.info/

Finance professional with 8+ years of experience in financial accounting & planning, cost & management accounting, and performance analysis. An Associate Cost and Management Accountant (ACMA) with a strong track record in driving cost efficiency, enhancing financial reporting, and supporting strategic decision-making. Skilled in budgeting, forecasting, variance analysis, and process improvement, with a methodical and data-driven approach to problem-solving. Committed to delivering actionable financial insights that improve operational performance and align with business objectives.

I am a Full Stack Developer specializing in .NET Core, Angular, and React, with over 8 years of experience delivering high-performing, scalable, and secure web applications. I have worked on projects ranging from enterprise SaaS solutions, CRM systems, eCommerce platforms, to API integrations. My focus is always on writing clean, maintainable code and delivering results that help businesses grow. Core Expertise: ✅ Frontend: Angular, React, NextJs, TypeScript, JavaScript, HTML5, CSS3 ✅ Backend: ASP.NET Core, Web API, C#, Entity Framework ✅ Database: SQL Server, MySQL ✅ Cloud & Tools: Azure, Git, REST APIs, Agile methodology Why clients hire me? ✅ Strong problem-solving and debugging skills ✅ Ability to modernize Angular apps and React Apps ✅ Proven track record of delivering projects on time & within budget ✅ Clear communication & long-term collaboration mindset 🚀 Let’s connect to discuss how I can bring value to your project.

I help startups and businesses build SaaS products, AI-powered applications, and custom business solutions using Python and React. With 8+ years of experience as a Senior Full Stack Developer | SaaS, AI & Automation, I've built AI assistants, multi-tenant SaaS platforms, custom dashboards, and workflow automation systems that help businesses scale efficiently. I specialize in Python, Django, FastAPI, React, OpenAI, API integrations, and cloud-based architectures, delivering scalable solutions that are reliable, maintainable, and built for long-term growth. I've partnered with startups, agencies, and growing businesses to deliver: SaaS applications and subscription-based platforms AI-powered applications and OpenAI integrations Custom dashboards and internal business tools Workflow automation and backend process optimization API integrations with payment gateways, CRMs, ERPs, Shopify, GPS services, and third-party platforms Real-time tracking systems and operational platforms 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝗱 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 Celina – AI-Powered Assistant Built an AI assistant powered by OpenAI and RAG architecture with document understanding, contextual conversations, and workflow automation. Barbera – Multi-Tenant Salon SaaS Developed a complete SaaS platform with multi-tenant architecture, role-based access control (RBAC), subscription management, dashboards, appointment scheduling, and business analytics. Barbera – Payment & WhatsApp Automation Platform Implemented payment gateway integrations, WhatsApp automation, notifications, customer engagement workflows, and backend business automation. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 Backend & APIs • Python, Django, Flask, FastAPI • REST APIs, GraphQL, WebSockets • Authentication, OAuth, JWT, RBAC • Microservices and scalable architectures Frontend Engineering • React, Next.js • TypeScript, JavaScript ES6+ • Redux, Context API • Tailwind CSS, Bootstrap • Responsive and modern UI development AI & Automation • OpenAI API integrations • RAG-based AI applications • OpenAI, RAG & AI Agents • Workflow automation • AI-powered business tools Database & Cloud • PostgreSQL, MongoDB, MySQL, Redis • AWS (EC2, S3, Lambda, RDS) • Docker, Kubernetes • CI/CD and deployment automation Third-Party Integrations • Stripe, PayPal, Twilio • Shopify, HubSpot, Salesforce • Google Maps, Mapbox • CRM and marketplace APIs I focus on building reliable and scalable solutions rather than quick fixes. My approach combines clean architecture, strong engineering practices, business understanding, and clear communication to ensure products are technically sound and commercially successful. Whether you need a SaaS platform, AI application, custom dashboard, API-driven system, workflow automation, or a scalable MVP, I'd be happy to discuss your project and help bring your ideas to life.

Mental Health & Home Healthcare Medical Billing Specialist | RCM Analyst | Benefits Verification | AR Follow-Up | Denial Management Are you looking for a reliable Medical Billing and Revenue Cycle Management (RCM) specialist who can effectively manage your claims, reduce aging AR, verify patient benefits, and maximize collections? I bring extensive experience in ♦ Mental Health Billing, Home Healthcare Billing, Insurance Verification ♦ Claims Follow-Up ♦ Denial Management ♦ Accounts Receivable Recovery ♦ With a strong background in healthcare administration and medical billing, I help providers streamline their revenue cycle, improve cash flow, and maintain compliance with payer guidelines. My proactive approach to claim resolution and insurance follow-up ensures faster reimbursements and fewer write-offs. ✅ Patient Benefits Verification & Eligibility Checks ✅ Insurance Verification (Commercial, Medicare & Medicaid) ✅ Prior Authorization & Referral Management ✅ Claims Submission (Electronic & Paper) ✅ Claims Follow-Up & Appeals ✅ Denial Management & Resolution ✅ Accounts Receivable (AR) Follow-Up ✅ Aging AR Cleanup & Recovery ✅ Payment Posting & Reconciliation ✅ Revenue Cycle Management (RCM) ✅ Provider Credentialing & Contracting ✅ Patient Scheduling & Virtual Administrative Support ♦ Specialty Experience ♦ I have successfully worked with healthcare providers across multiple specialties, including: * Mental Health / Psychiatry * Home Healthcare * Internal Medicine & Geriatrics * Pain Management * Physical Therapy * Chiropractic * Sports Medicine & Rehabilitation * Infectious Disease * Independent Laboratories * COVID-19 Services I possess comprehensive knowledge of: * Medicare * Medicaid * Commercial Insurance Plans * Managed Care Organizations * Payer Policies & Reimbursement Guidelines * Coordination of Benefits (COB) * Claim Appeals & Dispute Resolution Software & EHR Experience * eClinicalWorks (eCW) * AdvancedMD *Tebra * ModMed * CompuLink * Practice Fusion * CureMD * DrChrono * OfficeAlly * PowerChart * MyDoctorsChart * MobileMediClaim

I’m a full-stack web developer with 10+ years of hands-on experience building websites that are not just visually good but actually perform and convert. Over the years, I’ve worked extensively with WordPress, Shopify, and Webflow — handling everything from custom development to complete website builds. Whether it’s creating a custom theme, optimizing performance, or setting up an eCommerce store, I focus on clean structure, speed, and scalability. Along with development, I also help businesses streamline their processes using automation and CRM systems. I work with GoHighLevel (GHL), n8n, Make and Zapier to build complete lead generation and follow-up systems — including funnels, pipelines, email/SMS automation, and integrations. What I can help you with: ● WordPress development (custom themes, Elementor, ACF, WooCommerce) ● Shopify development (custom theme development, custom sections, Liquid, performance optimization) ● Webflow website design and development ● Claude/Cursor AI based web/workflow development ● Funnel building and CRM setup using GoHighLevel ● Automation using n8n, Make, Zapier ● API integrations and backend work using PHP & MySQL ● Building white-labeled lead generation systems I focus on delivering work that is practical, reliable, and easy to manage for the long term. Clear communication and timely delivery are always part of my process. If you’re looking for someone who can handle both development and automation side of your business, feel free to reach out.