Senior backend engineer with 15+ years of hands-on experience. Also ship mobile (Flutter, React Native, Kotlin, Swift) and web (React, Next.js, NestJS) through AI-assisted workflows using Codex, Claude Code, and Cursor. Core strength: - C# / .NET: ASP.NET Core, ASP.NET MVC, WinForms, WPF, Entity Framework, EF Core, LINQ, Dapper, Windows Services, .NET Framework 2.0 through .NET 8 - SQL Server: 2000-2022, T-SQL, stored procedures, query tuning, indexing, performance optimization - Architecture: CQRS, DDD, SOLID, Clean Architecture, Repository Pattern, Microservices, Event-Driven AI-assisted delivery: Mobile (Flutter, React Native, Kotlin, Swift) and AI features (OpenAI API, LangChain, LangGraph, RAG, MCP exploration) are shipped via Codex, Claude Code, and Cursor. I drive architecture, specs, diff review, QA, and deployment. AI accelerates the non-C# syntax. I am transparent about which stacks I write directly vs. which I deliver via AI tooling. What I've built and shipped: - WinRest POS: 20+ year production C# .NET codebase. I maintain and extend it with Uber Eats, Clover, Moneris GO, SkipTheDishes integrations. OAuth 2.0, webhooks, zero-downtime deployments. - GrocerKey: ASP.NET Core multi-tenant e-commerce for 10+ US grocery retailers (Fareway, Kowalski's, Stew Leonard's). CQRS, EF Core, Stripe, RabbitMQ, ElasticSearch, SignalR. Eliminated peak-traffic EF query timeouts. - Pepsi Cola Primary Sales MIS: C# WinForms + SQL Server. Reduced year-end closing from 2+ days to under 1 hour via optimized stored procedures. - 35+ mobile apps shipped to App Store and Play Store (Flutter, React Native, Kotlin, Xamarin) - ExtraMiles Loyalty Suite: 5 NestJS microservices + Next.js admin + Flutter consumer app + POS terminal - Pt Pal: HIPAA-compliant physiotherapy app (ML Kit, CameraX, BiometricPrompt) - 6 self-published Chrome extensions (ScreenSolver with OpenAI vision API, Daraz Smart Shopper, Upwork Job Insights, and more) - 2 Custom GPTs published on OpenAI platform Trader companion & utility apps: Position sizing calculators, Forex session trackers, signal alerts, stock lookup tools — StoreKit 2, Play Billing, subscriptions, IAP. Industries: Restaurant POS & Food Delivery, E-Commerce & Retail, Healthcare (HIPAA), Loyalty & Rewards, Enterprise SaaS, Trader Companion Utilities, Legal Tech. Availability: 9 AM - 11 PM PKT (UTC+5). Full 8-hour overlap with UK / EU / Middle East. 4-5 hour morning overlap with US East & Central. 40+ hrs/week.

Top Rated on Upwork, 100 percent job success, over 1000 hours delivered across 18 jobs. I am a Senior Full Stack Developer with over 10 years of experience helping startups and businesses turn ideas into secure, production ready products across AI SaaS, healthcare, e-commerce, SportsTech, real estate and recruiting industries. Clients work with me because I deliver clean, working code, communicate clearly and stay reliable from the first call to final launch. I build using Next.js, React, Node.js, NestJS, Express.js, TypeScript, Python, FastAPI, PostgreSQL, Supabase, MongoDB, AWS, Docker, Stripe and modern cloud technologies. AI SaaS Development, LLM Integration and RAG Systems I have developed AI powered products including Executioner, ChatFaster, and GovDoc AI, working with OpenAI, Claude, Anthropic, AWS Bedrock, LangChain, AI Agents, AI Assistants, AI Chatbots, Retrieval Augmented Generation, Recommendation Systems, Prompt Engineering, Semantic Search, Vector Databases, Embeddings, OCR, NLP, AI Document Processing, Conversational AI, Intelligent Search and Workflow Automation. SaaS Platforms and Startup MVP Development I have built and launched SaaS products including GovDoc AI, ScoreHub, OurWellnessLife, LetsPadel, and CutsLikeAKnife, delivering customer portals, admin dashboards, multi tenant architecture, authentication, role based access control, subscription billing, workflow automation, REST API development, third party integrations and scalable cloud infrastructure. Healthcare Software and HIPAA Compliant Platforms I have delivered secure healthcare platforms including LumnBio, ClinicScribe, OurWellnessLife, and IntegraHC, building HIPAA compliant applications with patient management, provider dashboards, AI assisted recommendations, audit logs, secure authentication, medical workflows, reporting, and healthcare data management. SportsTech Platform Development I have developed SportsTech platforms including LetsPadel, ScoreHub, and TikiTaka, building player management systems, tournament management, rankings, scheduling, analytics, subscriptions, community platforms, and mobile applications. E-commerce and Marketplace Development I have worked on platforms including Everlane, Ruggable, MVMT, Exclusive Customs, and BrokerHub, delivering product catalogs, shopping carts, secure checkout, Stripe payment integration, inventory management, order management, vendor portals, and customer dashboards. Real Estate Platform Development I have contributed to real estate platforms including Doorvest, RentCast, The Trusted Buyer, and Elysium Grand Apartments, building property management systems, investment dashboards, CRM integrations, reporting tools, and customer portals. Recruiting and Talent Acquisition Platform Development I have built recruiting platforms including Eximius, SafetyTalent, and Recruit, delivering applicant tracking systems, employer dashboards, candidate management, hiring workflows, job boards, recruitment automation, and reporting solutions. Technical Expertise Frontend: Next.js, React, TypeScript, Vue, JavaScript, Tailwind CSS, HTML5, CSS3 Backend: Node.js, NestJS, Express.js, Laravel, PHP, Fastify, Python, FastAPI Databases: PostgreSQL, Supabase, MongoDB, MySQL, Redis AI: OpenAI, Claude, Anthropic, AWS Bedrock, LangChain, AI Agents, AI Chatbots, RAG, Recommendation Systems, Prompt Engineering, Semantic Search, Vector Databases Cloud: AWS, Docker, Vercel, Railway, Render, DigitalOcean Integrations: Stripe, Twilio, Mailgun, SendGrid, Resend, Firebase, Google APIs, Webhooks If you are building an AI SaaS platform, a healthcare application, an e-commerce store or any production ready web or mobile product, message me and let us discuss your project. I am available now and ready to start.

⭐⭐⭐⭐⭐ TOP RATED PLUS ON UPWORK #14+ Years of Experience in Meta CAPI, Google Ads Tracking Expert, GA4 Setup, Google Ads Server Side Tracking, FB Conversion API, Facebook Meta Pixel Setup, Google Ads Enhanced Conversions, Google Analytics 4 Migration and Ecommerce Conversion Tracking, Google Tag Manager, Google Data Studio, Google Ads Tracking, Bing Tracking, FB Pixel Tracking, IG Tracking, Outbrain Tracking, Pinterest Tracking, LinkedIn Tracking, UA to GA4 Migration, GTM, GTM GA4 Expert, Google Analytics Server Side Tracking, Server Side Tracking Via Stape, Google Looker Studio, Upgrade Shopify Checkout Extensibility Tracking Using GTM, Setup Google Consent Mode Version 2, Cookiebot, Stape Tracking Setup, GDPR or CCPA Cookie Consent Mode V2 Implementation Via Google Tag Manager, Google Tag Gateway Setup, GoHighLevel Tracking Setup, Sierra Interactive Tracking, GHL Tracking, Google & YouTube Tag App Setup/Migration, GoHighLevel Meta Pixel Tracking CAPI. ✅ I am ⭐⭐⭐⭐⭐ TOP RATED PLUS FREELANCER ## Why Choose Me? ✅ Top Rated Plus Freelancer ✅ Available as per the USA working hours ✅ Google Ads, GA4 & GTM Tracking Expert ✅ Google Partner Certified ✅ 14+ Years of Experience in Digital Marketing & Conversion Tracking ✅ Proven Track Record Across Lead Generation & Ecommerce Businesses ✅ Server Side Tracking & Privacy-First Measurement Specialist ✅ Experience Across Shopify, WooCommerce, WordPress, Magento, Wix, Squarespace, ClickFunnels, GoHighLevel & Custom Platforms --- ## Services That I Offer ### Google Ads Management - Google Ads Campaign Setup - Google Ads Campaign Optimization - Google Ads Account Audit - Search Campaigns - Performance Max (PMax) - Shopping Ads - Display & Remarketing - Google Ads Reporting ### Google Tag Manager (GTM) - Google Tag Manager Setup - Custom Event Tracking - Data Layer Implementation - Form Tracking - Iframe Tracking - Funnel Setup - Goal Setup and Lead Tracking - Filter Implementation - Cross-Domain Tracking - Subdomain Tracking ### Google Analytics 4 (GA4) - Google Analytics 4 Setup - GA4 Server Side Tracking - Google Analytics Server Side Tracking - Enhanced Ecommerce Google Analytics 4 Tracking - Google Analytics Goal, Event & Ecommerce Tracking Setup - Funnel Tracking & Analysis - Attribution and Reporting ### Google Ads Tracking - Google Ads Conversion Tracking and Event Setup - Google Ads Enhanced Conversions Tracking - Google Ads Server Side Tracking - Dynamic Remarketing Google Ads - Google Ads Dynamic Remarketing Setup - Google Call Forwarding Tracking - Offline Conversion Tracking - Dynamic Purchase Value Tracking ### Server Side Tracking - Server Side Tracking Via Stape - Stape Server Side Tracking - First-Party Tracking Solutions - Enhanced Data Accuracy - Conversion Modeling Improvements - Google Analytics 4 Server Side Tracking - Google Tag Gateway Setup - Enabling Google Tag Gateway ### Meta Pixel & Conversion API - Meta Pixel Tracking - Facebook Meta Pixel Setup - FB Meta Pixel - Facebook Conversion API - FB Conversion API - Instagram Pixel Setup and Tracking - GoHighLevel Meta Pixel Tracking CAPI ### Ecommerce Tracking - GA4 Shopify Ecommerce Tracking - WooCommerce Ecommerce Tracking Setup - Shopify Ecommerce Tracking Setup - Magento 2 Ecommerce Tracking - Wix Ecommerce Tracking - OpenCart Ecommerce Tracking - BigCommerce Ecommerce Tracking - Squarespace Ecommerce Tracking - Prestashop Ecommerce Tracking - WineDirect Ecommerce Tracking - Shopify Customer Event - Shopify Custom Pixel - Upgrade Shopify Checkout Extensibility Using GTM - Follow Shopify Official Documents to Build DataLayer - Enable Custom DataLayer and Push DataLayer Into LAX Sandbox - Dynamic Purchase Value Tracking With Custom JS ### Landing Page & Funnel Tracking - ClickFunnels Tracking Setup - Unbounce Tracking Setup - Leadpage Tracking Setup - Typeform Tracking - ThriveCart Tracking - SamCart Tracking - Smart Cart Tracking ### Booking & Call Tracking - Booking Tracking - Mindbody Tracking - Booker Tracking - Calendly Booking Tracking on GA4 and Google Ads - Acuity Scheduling Tracking Google Analytics - CallRail Tracking - Call Tracking Matrix - Avanser Call Tracking Tools ### Social Media & Advertising Platform Tracking - LinkedIn Tracking - Twitter Tracking - Pinterest Tracking - AdRoll Tracking - TikTok Tracking - Bing Ad Conversion Tracking - Microsoft Ads Tracking - Microsoft Tracking - Outbrain Tracking ### Reporting & Analytics - Google Looker Studio Reports - Google Data Studio Reports - Custom Report Building - Attribution and Reporting - Google Looker Studio Dashboard Setup ### CRM & Platform Tracking - GoHighLevel Tracking Setup - GHL Tracking - Sierra Interactive Tracking - Google & YouTube Tag App Setup/Migration I help businesses collect accurate data, improve attribution, eliminate tracking gaps, and make better advertising decisions through reliable Google Ads, GA4, GTM, Meta Pixel, Conversion API, and Server Side Tracking implementations.

With 25+ years of hands-on technology leadership experience, I serve as a Fractional CTO specializing in AI/ML, Cloud Architecture, Cybersecurity, and Application Development. I’ve worked with global brands including Walmart, FIFA, Porsche, Deloitte, and Covestro, helping them solve complex technical challenges and deliver high-impact solutions. I specialize in three core areas: AI & Machine Learning — Over a decade of real-world experience building AI solutions long before it became mainstream. Application Development — Designing and delivering robust web, mobile, and backend applications that turn ideas into reality. Cybersecurity — Architecting secure systems and maintaining ongoing security excellence through regular testing and best practices. As a Fractional CTO, I provide high-level strategic leadership without the full-time cost. I help companies: Align technology with business goals Build scalable, secure architectures (AWS & Azure) Reduce technical debt Accelerate product development Strengthen cybersecurity posture Whether you need interim leadership, a technology roadmap, AI implementation, or help scaling your systems securely — I deliver practical, results-driven solutions that drive real business growth. I’m known for clear communication, deep technical expertise, and the ability to bridge the gap between business needs and technical execution. Let’s talk about how we can work together to move your technology forward.

💎𝗧𝗼𝗽-𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 𝗦𝗘𝗢 𝗘𝘅𝗽𝗲𝗿𝘁 | 𝗧𝗼𝗽 𝟭% 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 SEO is evolving, but the fundamentals still matter. I help SaaS, eCommerce, and content-driven businesses grow sustainable organic traffic and revenue by building SEO systems that remain effective even as search becomes more AI-driven. I’m a senior SEO strategist with 10+ years of hands-on experience helping SaaS, eCommerce, and content-driven businesses grow sustainable organic traffic and revenue. My approach blends core SEO fundamentals with a deep understanding of how AI is reshaping modern search results. I don’t chase hacks or short-term spikes. I build SEO systems that survive algorithm updates and perform consistently in today’s AI-influenced SERPs. 🧠 𝗪𝗵𝗮𝘁 𝗜 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲 𝗜𝗻 =================== 🔧 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗘𝗢 - Crawlability, indexation, and site architecture optimization - Canonicals, pagination, internal linking, and log analysis - Fixing complex issues that block rankings and growth 🔑 𝗞𝗲𝘆𝘄𝗼𝗿𝗱 & 𝗦𝗲𝗮𝗿𝗰𝗵 𝗜𝗻𝘁𝗲𝗻𝘁 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆 - Keyword research mapped to real user and business intent - Opportunity analysis for high-converting, low-waste traffic - Modern SERP analysis including featured snippets and AI summaries 📝 𝗖𝗼𝗻𝘁𝗲𝗻𝘁 & 𝗢𝗻-𝗣𝗮𝗴𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 - Content optimization for rankings, snippets, and AI visibility - Structuring pages for trust, relevance, and topical authority - SEO-friendly content briefs that writers and editors can execute 🤖 𝗔𝗜-𝗘𝗿𝗮 𝗦𝗲𝗮𝗿𝗰𝗵 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 - Optimizing for AI Overviews, answer engines, and rich results - Schema and structured data strategy - Preparing sites for conversational and intent-driven search behavior 🏆 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 & 𝐏𝐫𝐨𝐨𝐟 =================== 📌 10+ years in SEO across multiple industries 📌3+ Thousands of hours worked on Upwork 📌 Strong client feedback for audits, strategy, and execution 📌 Trusted by clients looking for long-term SEO partners, not quick fixes 🤝 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 ============= ✅ Start with a focused audit to identify quick wins ✅ Fix structural and technical blockers first ✅ Build scalable keyword and content frameworks ✅ Execute with clarity, transparency, and measurable KPIs No jargon. No guesswork. Just clean SEO execution. 📞𝗟𝗲𝘁’𝘀 𝗚𝗲𝘁 𝗦𝘁𝗮𝗿𝘁𝗲𝗱 If you’re looking for an SEO partner who understands both classic SEO and the realities of AI-driven search, I’d be happy to start with:- - A quick SEO + AI SERP audit, or - A strategy call to identify immediate growth opportunities 📩 Send a message and let’s see how we can improve your organic performance.

I build custom, high-performing websites on WordPress, Shopify, Webflow, and Squarespace. 1,080+ completed projects, 9,700+ hours worked, 98% Job Success Score, Top Rated Plus on Upwork. Every project starts with the problem: low conversions, slow load times, outdated design, or a site that isn't generating business results. I wireframe in Figma, mock up in Photoshop, then build clean, responsive, Core Web Vitals-optimised sites that perform in production, not just in preview. What I build: Custom WordPress websites and WooCommerce stores Shopify store development and theme customisation Webflow website design and development Squarespace website design Landing pages built to convert Website redesigns and rebuilds Custom theme/app development (PHP, ACF, platform APIs) Speed optimisation and Core Web Vitals fixes On-page SEO setup (schema, sitemaps, meta) Third-party integrations (CRM, Zapier, APIs) I don't default to one platform. WordPress for full control and custom functionality. Shopify for scalable ecommerce. Webflow for design-led builds. Squarespace for fast, manageable sites. The platform fits the brief, not the other way around. Tech stack: WordPress, WooCommerce, Elementor Pro, Divi, PHP, ACF · Shopify, Liquid, Shopify API · Webflow, CMS Collections · Squarespace · Figma, Photoshop, Cloudflare, Git, GA4, GTM I work with US-based small businesses, agencies, and founders who need a website that performs, not just one that exists. Most projects are $2,000+. If your site isn't converting, isn't fast enough, or doesn't reflect your business anymore, send me a message. Primary Services Custom Website Design & Development (WordPress, Shopify, Webflow, Squarespace) Landing Page Design & Development Website Redesign & Refresh Shopify Store Setup & Customisation WooCommerce Setup & Development Speed Optimisation & Plugin/App Audit

𝙃𝙚𝙡𝙥𝙞𝙣𝙜 𝘽𝙪𝙨𝙞𝙣𝙚𝙨𝙨𝙚𝙨 𝙂𝙧𝙤𝙬 𝙬𝙞𝙩𝙝 𝘿𝙖𝙩𝙖-𝘿𝙧𝙞𝙫𝙚𝙣 𝙎𝙀𝙊 𝙎𝙩𝙧𝙖𝙩𝙚𝙜𝙞𝙚𝙨 𝙏𝙝𝙖𝙩 𝙄𝙣𝙘𝙧𝙚𝙖𝙨𝙚 𝙊𝙧𝙜𝙖𝙣𝙞𝙘 𝙏𝙧𝙖𝙛𝙛𝙞𝙘, 𝙇𝙚𝙖𝙙𝙨 & 𝙍𝙚𝙫𝙚𝙣𝙪𝙚 If you're looking for an SEO expert who delivers measurable business results, not just higher rankings, you're in the right place. I'm a Senior SEO Expert with 8+ years of experience helping startups, local businesses, eCommerce brands, law firms, healthcare providers, and service-based companies improve their online visibility through strategic SEO. My approach is simple: understand your business, identify growth opportunities, fix what limits your organic performance, and build a long-term SEO strategy that generates sustainable results. 𝗠𝘆 𝗦𝗘𝗢 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜𝗻𝗰𝗹𝘂𝗱𝗲: - Technical SEO Audits & Error Fixes - Local SEO & Google Business Profile Optimization - AI SEO & GEO (Generative Engine Optimization) - On-Page SEO & Content Optimization - Keyword Research & SEO Strategy - Competitor Analysis & Content Gap Analysis - Shopify SEO & WooCommerce SEO - Website Migration SEO - Schema Markup Implementation - Core Web Vitals & Page Experience Recommendations - Google Search Console & Google Analytics 4 Setup - Weekly/Monthly SEO Reporting & Growth Planning 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲: - 8+ Years of Professional SEO Experience - White-Hat SEO Strategies Only - Customized SEO Plans - No Generic Templates - Clear Communication & Weekly Progress Updates - Focus on Long-Term Organic Growth & ROI 𝗧𝗼𝗼𝗹𝘀 𝗜 𝗨𝘀𝗲: Google Search Console • Google Analytics 4 • Ahrefs • SEMrush • Screaming Frog • Google Business Profile • Google Tag Manager • PageSpeed Insights • Looker Studio Whether you need to recover lost rankings, improve local visibility, optimize your website for AI-powered search, or build a complete SEO strategy from scratch, I'll create a solution tailored to your business goals. 𝗟𝗲𝘁'𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗮𝗻𝗱 𝗯𝘂𝗶𝗹𝗱 𝗮𝗻 𝗦𝗘𝗢 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝘆 𝘁𝗵𝗮𝘁 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘀 𝗺𝗲𝗮𝘀𝘂𝗿𝗮𝗯𝗹𝗲 𝗿𝗲𝘀𝘂𝗹𝘁𝘀.

Completed 50+ world-class 3D product configurators across various industries. With 20 years of experience in computer graphics and computational geometry, I help businesses turn complex 3D and visual data into interactive, production-ready software — from AI-powered computer vision pipelines to real-time 3D configurators and digital twins. On the 3D configurator and e-commerce side, I create web-based experiences where users can load, customize, and augment products in real-time using WebGL/Three.js and modern JavaScript, then purchase directly through the website — turning static product pages into interactive sales tools. My technical foundation covers both precision CAD work (STEP/IGES) and mesh-based pipelines (STL/OBJ), using geometry kernels like Parasolid, Open Cascade, CGAL, and IGL, graphics libraries like VTK and OpenGL, and languages including C++, C++/CLI, C#, and JavaScript, with UI frameworks like Qt and MFC for desktop tools. On the computer vision and AI side, I build systems that extract measurements, detect defects, and verify manufacturability directly from images, scans, or CAD models — including photogrammetry pipelines that reconstruct accurate 3D models from real-world photos for digital twin and inspection use cases. Whether the challenge is reconstructing real-world geometry through photogrammetry, building a digital twin that mirrors physical assets, training a vision model to inspect or measure parts, or shipping a configurator that helps customers buy with confidence, I bring deep geometry expertise together with modern AI and graphics tooling to deliver solutions that solve real engineering and business problems.

👋 Hi, I’m Serhii Korzhenko — Top 3% Google Ads & Meta Ads Expert on Upwork (100% Job Success) with 10+ years in digital marketing and 5+ years focused on ecommerce performance & paid media scaling. I help e-commerce and DTC brands grow revenue profitably, improve ROAS, and turn paid traffic into predictable sales growth. 🥇 What I specialize in • E-commerce Ads Scaling (ROAS-focused) • Meta Ads (Facebook & Instagram) • Google Ads (Shopping, Performance Max, Search) • TikTok Ads • Full-Funnel Strategy (TOF / MOF / BOF) • Conversion Tracking (GA4, GTM, Meta Pixel) 📊 Experience & credibility • 100+ ecommerce & PPC projects (USA, Canada, UK, EU, AU) • 200+ campaigns launched & optimized • $1K – $50K+/month ad spend managed • Google Ads Certified • Proven experience in fashion, jewelry, home decor, lifestyle, DTC 💎 What you get by working with me • Clear ecommerce ads strategy & scaling roadmap • Full-funnel campaign structure • Audience testing & remarketing • ROAS & CPA optimization • Transparent performance reporting & insights 📈 Selected results • 33.9x ROAS — Meta Ads | Home Decor Ecommerce (Norway) • 4.16x ROAS — Meta Ads | Jewelry Ecommerce (Australia) • $21.32 CPA — Google Ads | EdTech (USA) 📌 More case studies available in my portfolio below. If you’re looking for a performance-driven e-commerce ads manager, click Invite and let’s scale your ads profitably 🚀

🏆 Top Rated Plus | $300K+ Earned | 82% Job Success | 18+ Years Experience I'm Amir, an AI Engineer and Full Stack Developer with strong experience in building AI automation platforms SaaS products web applications chatbots and AI powered business tools. - AI Engineer with hands on experience in AI ML and automation systems - Full Stack Developer with strong Python Django Node.js React experience - Built AI chatbots AI bots AI agents and workflow automation tools - Experienced with OpenAI APIs LangChain RAG vector databases and LLM integrations - Skilled in backend APIs dashboards SaaS platforms and scalable cloud deployments 𝐀𝐈 𝐁𝐨𝐭𝐬 / 𝐀𝐈 𝐂𝐡𝐚𝐭𝐛𝐨𝐭𝐬 / 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬: - AI Chatbots for customer support lead generation internal teams and business workflows - AI Agents for task automation data processing search workflows and multi step actions - RAG based assistants using company documents websites PDFs CRMs and knowledge bases - AI automation tools that connect APIs databases dashboards emails and third party platforms - LLM integrations using OpenAI Claude Gemini LangChain LlamaIndex and custom prompts 𝐀𝐈 / 𝐌𝐋 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: - Machine learning workflows using Python Scikit learn Pandas NumPy and data pipelines - AI model integration evaluation prompt testing and production optimization - AI powered recommendation engines content analysis classification and prediction systems - Experience with Pinecone FAISS Chroma Qdrant Weaviate and PostgreSQL based AI search 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐒𝐤𝐢𝐥𝐥𝐬: - Python Django Flask FastAPI and REST API development - Node.js Express.js NestJS and scalable backend architecture - PostgreSQL MySQL MongoDB Firebase Firestore and Redis - Authentication role based access payment integrations and third party APIs - Docker AWS EC2 S3 Lambda CloudWatch and deployment workflows 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐒𝐤𝐢𝐥𝐥𝐬: - React.js Next.js TypeScript JavaScript HTML CSS and Tailwind CSS - Admin dashboards SaaS platforms customer portals and internal business tools - Responsive UI development with clean user friendly interfaces - API integrations real time updates forms charts and frontend state management 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: - OpenAI API Claude Gemini LangChain LlamaIndex Hugging Face - Pinecone FAISS Chroma Qdrant Weaviate PostgreSQL pgvector - Python Django FastAPI Node.js NestJS React Next.js - AWS Docker GitHub GitHub Actions Vercel Firebase Supabase - Stripe Twilio SendGrid Zapier Make webhooks and custom API integrations 📩 LET'S TALK If you're building something serious and want a senior developer who genuinely cares about your outcome, let's talk.