Hello, I am a full stack software developer, freelancing world wide. I apply SDLC, OOAD, SOLID and other software craftsmanship practices.. but not forget to use KISS principle. I’m experienced in creating web applications, web services, specializes in scalable, enterprise-level application development and engineering solutions for exceptionally high throughput. Over 10 years of experiences in technical consultant, and architect, specializes in full-stack, highly scalable, real-time data services, I have delivered top quality technical architecture, programming, testing and solutions for complex problems on-time and within budget.. I'm an Agile Kanban practitioner who loves to collaborate on development projects. Languages and Frameworks: .Net Core, C#, Nest js, Next js, Python, Node.js, Angular, ngRx, React, Redux, Mobx, Vue js, Knockout.js, Cordova , Express.js, Gulp.js, Mean Stack, ASP.Net MVC, C#, REST API, Grunt, Javascript, Jquery, HTML5, CSS, Bootstrap, Material Design, GraphQL , MongoDB, PostgreSQL, Test-driven Development (TDD), Software Architecture, SAAS, Microservices, Serverless, AWS, Azure Cloud Services, Azure Pipeline, CI/CD DevOps, Docker, Kubernetes. Highly skilled and experienced in: . Web User Interface, User Experienced modern design and implementation . Database creation, integration, and management . Using back-end frameworks to build server-side services, Web API, Restful service implemenetation and integration . Cloud server integration, especailly Azure . Content management system (CMS) development, deployment, and maintenance . Data analysis and reporting, visualization and business intelligent with Power BI . Architect .NET solutions. Well-versed in .NET frameworks, Web/Windows Services, and Team Foundation Servers, GIT . Gathering business requirements, completing key architecture design, and overseeing low-level and high-level design and documentation across the software development lifecycle. I'm working with agility, cooperation with trust and quality, experienced in Scrum Agile. I'm looking for long-term cooperation in freelancing work with you ! Thank you in advance for your time and consideration.

Building software that scales, performs, and lasts. I'm a Top Rated Plus Full Stack .NET Developer with 8+ years of experience, $100K+ earned, 5,500+ hours worked, and a 100% Job Success Score on Upwork. I help startups and established businesses design, build, modernize, and maintain enterprise applications using .NET, Angular, Azure, SQL Server, REST APIs, and AI technologies. Whether you need a new SaaS platform, a healthcare application, API integrations, cloud migration, performance optimization, or help rescuing an existing project, I focus on delivering clean, reliable, and production-ready software. What I Build Healthcare ✅ EMR / EHR Systems ✅ Patient Portals ✅ Telemedicine Platforms ✅ Remote Patient Monitoring (RPM) ✅ Clinical Dashboards ✅ Medical Device Integrations ✅ Healthcare APIs ✅ FHIR & HL7 Integrations ✅ HIPAA-Aware Applications SaaS & Enterprise Applications ✅ Multi-Tenant SaaS Platforms ✅ Enterprise Web Applications ✅ CRM & ERP Systems ✅ Customer Portals ✅ Admin Dashboards ✅ Inventory Management ✅ Reporting & Analytics ✅ Workflow Automation Robotics & IoT ✅ Fleet Management Systems ✅ Robot Monitoring Dashboards ✅ GPS Tracking Solutions ✅ Device Telemetry ✅ Real-Time Monitoring ✅ Robotics API Integrations ✅ Geotab Integrations AI & Automation ✅ OpenAI & ChatGPT Integration ✅ Azure OpenAI ✅ AI Assistants ✅ AI Chatbots ✅ Workflow Automation ✅ AI-Powered Reporting ✅ Intelligent Search ✅ AI Document Processing Technologies Backend ✅ .NET 9 ✅ .NET 8 ✅ .NET Core ✅ ASP.NET Core ✅ ASP.NET Web API ✅ C# ✅ Entity Framework Core ✅ Dapper ✅ SignalR ✅ REST APIs ✅ Microservices ✅ OAuth ✅ JWT Authentication Frontend ✅ Angular ✅ TypeScript ✅ RxJS ✅ JavaScript ✅ HTML5 ✅ CSS3 ✅ Bootstrap ✅ Angular Material ✅ DevExtreme ✅ DevExpress Database ✅ SQL Server ✅ Azure SQL ✅ Entity Framework ✅ Dapper ✅ Stored Procedures ✅ Database Optimization ✅ Performance Tuning Cloud & DevOps ✅ Microsoft Azure ✅ Azure App Services ✅ Azure Functions ✅ Azure SQL ✅ Azure Storage ✅ Azure DevOps ✅ CI/CD ✅ Docker ✅ Git ✅ GitHub Integrations ✅ REST APIs ✅ Third-Party APIs ✅ Payment Gateway Integration ✅ OAuth Authentication ✅ Geotab API ✅ Robotics APIs ✅ Medical APIs Artificial Intelligence ✅ OpenAI ✅ ChatGPT ✅ Azure OpenAI ✅ AI Assistants ✅ AI Chatbots ✅ Prompt Engineering ✅ Intelligent Workflows Why Clients Work With Me ✅ Production-ready solutions ✅ Clean, maintainable architecture ✅ High-performance applications ✅ Fast and secure APIs ✅ Clear communication ✅ Regular progress updates ✅ Performance optimization ✅ Long-term technical support I don't believe in quick fixes or unnecessary complexity. My goal is to build software that's easy to maintain, performs well in production, and continues to support your business as it grows. Industries ✅ Healthcare ✅ Medical Technology ✅ SaaS ✅ Robotics ✅ Fleet Management ✅ Logistics ✅ Manufacturing ✅ IoT ✅ Enterprise Software If you're looking for a senior developer who can build reliable software, solve complex technical challenges, and become a long-term technology partner, I'd be happy to discuss your project.

14+ YEARS EXPERIENCE | 20+ AI PROJECTS | 18,000+ HOURS | Top Rated | Risk-Free Trial I help businesses and enterprises build AI-powered products, intelligent automation, and scalable web and mobile applications that drive efficiency, reduce operational costs, and accelerate business growth. I specialize in transforming ideas into production-ready products. From autonomous AI agents and enterprise knowledge assistants to SaaS platforms and custom business applications, I deliver solutions that are secure, scalable, and built for long-term success. Whether you're validating an MVP, integrating AI into an existing product, or building an enterprise-grade platform from the ground up, I provide end-to-end development from architecture and AI strategy to deployment and ongoing optimization. ✅AI & Intelligent Automation: I build AI solutions that go beyond chatbots. ◐AI Agents & Agentic AI Systems. ◐OpenAI (GPT-5), Claude & Gemini Integrations ◐RAG (Retrieval-Augmented Generation) & Enterprise Knowledge Bases ◐LangChain, LangGraph, CrewAI & MCP ◐AI Chatbots & Virtual Assistants ◐AI Document Processing (OCR + LLM) ◐Multi-Agent Workflows & AI Orchestration ◐Workflow Automation using n8n, Make & Zapier ◐AI SaaS Platforms & Custom GPT Applications ➡️Full-Stack Product Development: From frontend experiences to cloud infrastructure, I build complete, production-ready solutions. ◐React.js, Next.js, Vue.js & Angular. ◐Node.js, Python, FastAPI, Laravel & .NET. ◐Flutter & React Native (iOS & Android). ◐REST APIs, GraphQL & Microservices. ◐PostgreSQL, MySQL, MongoDB, SQL Server & Firebase. ◐AWS, Azure, Google Cloud, Docker & Kubernetes. ➡️AI Tools & Technologies: AI Development • Agentic AI • AI Automation • OpenAI • GPT-5 • Claude • Gemini • RAG • LangChain • LangGraph • CrewAI • MCP • Python • FastAPI • Node.js • React • Next.js • Flutter • React Native • AWS • Docker • Kubernetes • PostgreSQL • MongoDB • Stripe • n8n • Make • Zapier ✅What I Can Build for You: ◐AI Sales Agent. ◐AI Workflow Automation. ◐AI Ticketing System. ◐AI enterprise internal operation. ◐Marketplace & Booking Platforms. ◐Healthcare & FinTech Applications. ◐Mobile Apps (iOS & Android). ◐Custom CRM, ERP & Workflow Solutions. ◐MVPs for Startups. ◐Legacy System Modernization. ➡️Why Clients Choose Me: ▣14+ Years of Product Engineering Experience. ▣132+ Successfully Delivered Projects. ▣18,000+ Hours of Proven Development Experience. ▣End-to-End Ownership from Idea to Production. ▣Scalable Architecture & Clean, Maintainable Code. ▣Transparent Communication & Reliable Delivery. ▣Long-Term Technical Partnership. ➡️Industries Served: SaaS • Healthcare • FinTech • EdTech • Logistics • E-commerce • Real Estate • LegalTech • Travel • Manufacturing • Marketplaces • Enterprise Software. ✅Client Reviews: ⭐ “Exceptional delivery and attention to detail. He made complex requirements simple and usable.” ⭐ “Strong communication and deep expertise. Delivered exactly what we needed.” ⭐ “Reliable, skilled, and easy to work with. We’ll continue working with him.” If you're looking for a developer who can design the AI strategy, architect the platform, build the application, integrate modern AI technologies, and deliver a production-ready solution, Send me a message, and I’ll be happy to review your requirements. I even offer a risk-free initial consultation.

I help startups and businesses design, build, and scale AI-powered applications, cloud-native platforms, and modern full-stack products. With 9+ years of Full-Stack Development and 5+ years of Cloud Architecture experience, I've worked with startups, agencies, and growing businesses to deliver scalable software, cloud infrastructure, and intelligent AI solutions. Since 2021, I've specialized in Artificial Intelligence, helping companies not only build AI-powered products from scratch, but also integrate AI capabilities into existing web and mobile applications. Whether you're adding AI chat, AI agents, workflow automation, document intelligence, recommendation engines, semantic search, or generative AI features, I can help implement solutions that fit naturally into your existing architecture. My expertise spans the complete product lifecycle—from architecture and infrastructure design to AI integration, backend development, deployment, monitoring, and production scaling. What I Can Help You With 🤖 AI Engineering & Automation - AI-powered SaaS applications - AI integration into existing products - AI feature development for web & mobile apps - AI Agents & Agentic Workflows - Workflow automation - LLM integrations (OpenAI, Claude, Gemini, Llama) - Retrieval-Augmented Generation (RAG) - AI Chatbots & Virtual Assistants - Knowledge Bases & Semantic Search - Prompt Engineering - Text, Image, Voice & Video AI - Custom AI Copilots - MCP (Model Context Protocol) - AI API integrations ☁️ Cloud Architecture & DevOps - AWS, Azure & Google Cloud - Cloud-native application architecture - Serverless solutions - Event-driven architecture - Infrastructure as Code (Terraform) - Docker & Kubernetes - CI/CD pipelines - Cloud migration & modernization - Performance optimization - Monitoring & Observability - High-availability systems - Cost optimization 💻 Full-Stack Development - Python (FastAPI, Django, Flask) - Node.js & TypeScript - React, Next.js, Vue.js & Angular - REST APIs & GraphQL - Microservices architecture - PostgreSQL, MySQL, MongoDB & Redis - Authentication & Authorization - Third-party API integrations - Performance optimization - Enterprise SaaS development 📊 Data & AI Infrastructure - Vector Databases - Pinecone, Weaviate & ChromaDB - AI Knowledge Bases - Semantic Search - Data Pipelines & ETL - AI Analytics - Recommendation Systems - Business Intelligence - Real-time Data Processing - Technology Stack - AI & Automation OpenAI • Anthropic Claude • Google Gemini • Llama • LangChain • LangGraph • CrewAI • AutoGen • MCP • RAG Backend Python • FastAPI • Django • Flask • Node.js • TypeScript • JavaScript • Express.js • REST API • GraphQL Frontend React • Next.js • Vue.js • Angular • Tailwind CSS Cloud & DevOps AWS • Microsoft Azure • Google Cloud Platform • Docker • Kubernetes • Terraform • CloudFormation • Cloudflare • CI/CD Databases PostgreSQL • MySQL • MongoDB • Redis • Supabase • Firebase Why Clients Work With Me ✔ Build AI-powered products from idea to production ✔ Integrate AI into existing applications without disrupting current workflows ✔ Design scalable cloud-native architectures ✔ Deliver clean, maintainable, and production-ready code ✔ Communicate clearly and work as a long-term technical partner ✔ Focus on measurable business outcomes—not just writing code I don't just develop software—I help businesses make the right architectural decisions, reduce technical risks, and build systems that continue to scale as the business grows. If you're looking for an AI Engineer who combines AI expertise, cloud architecture, and full-stack development to deliver reliable production systems, I'd be happy to discuss your project.

Top Rated Plus on Upwork for 6+ consecutive years, 21+ years of market research experience, and 500+ successfully delivered projects. My experience includes 12 years with Kantar, one of the world's leading market research organizations, followed by 9 years running my own market research and analytics consulting firm. Throughout my career, I have helped businesses understand customers, uncover growth opportunities, and make smarter marketing decisions through research, consumer insights, and advanced analytics. I help businesses answer questions such as: • Who are our most valuable customer segments? • What drives customer satisfaction and loyalty? • Which marketing activities generate the highest ROI? • What opportunities exist in the market? • Are our findings statistically reliable and actionable? Core Expertise ✔ Market Research & Consumer Insights Customer Segmentation, Brand Research, U&A Studies, Customer Satisfaction, Product Research, Voice of Customer, Competitive Intelligence ✔ Statistical Analysis Cluster Analysis, Factor Analysis, Conjoint Analysis, Regression, Hypothesis Testing, A/B Testing, Significance Testing, Power Analysis ✔ Marketing Strategy Market Opportunity Assessment, Brand Positioning, Pricing Research, Customer Journey Analysis, Marketing Effectiveness ✔ Dashboards & Data Visualization Power BI, Tableau, Excel Dashboards, Marketing Performance Reporting, Executive Reporting ✔ Research & Analytics Tools SPSS, R, Power BI, Tableau, Excel Clients value my ability to combine statistical rigor with practical business recommendations. I don't just analyze data; I help organizations understand what the findings mean, why they matter, and what actions should come next. If you're looking for a research and analytics partner who can transform complex data into actionable business insights, let's connect

I am a Top Rated Python and .NET Developer with 16,000+ hours on Upwork and extensive experience helping companies build reliable REST APIs, integrate AI services, and ship production-ready backend systems on AWS and Azure. If you need a Python or .NET developer who can handle AI integration (OpenAI, AWS Bedrock, Azure OpenAI, Gemini, or any LLM API), cloud automation, and REST API development without hand-holding or vague timelines, that is exactly what I deliver. What I can help you with: • Python backend services: FastAPI, Flask, REST API development • .NET and C# Web APIs using ASP.NET Core • AI integration: OpenAI, AWS Bedrock, Azure OpenAI, LLM APIs, and RAG pipelines • AWS: Lambda, S3, SQS, API Gateway, EC2, and serverless automation • Azure: Azure Functions, Azure OpenAI, cloud services, and background jobs • API integration and third-party system automation workflows • SQL Server, PostgreSQL, Redis: performance tuning and reliability • React-based admin panels when full-stack ownership is needed Clients usually hire me to: • Modernize legacy systems without breaking production • Diagnose and fix unstable APIs or backend issues • Build new backend features with clean architecture and solid validation • Add AI capabilities into existing applications in a practical, maintainable way • Improve deployment confidence, observability, and handover quality How I work: • Clear communication and fast response, so you always know where things stand • Practical planning with concrete next steps before writing a single line of code • Production-focused engineering with logging, error handling, testing, and maintainable code • Reliable delivery without unnecessary complexity If you have an existing codebase, I can quickly review the setup, identify the highest-priority issues, and propose the best path forward. If you are starting something new, I can help design and build it in a way that is clean, scalable, and easy to maintain long term. 16,000+ hours. 129 jobs. Let's build something that works.

I help businesses build AI agents, AI automation, workflow automation, and API integrations that eliminate manual work, streamline operations, and create measurable business impact. My focus is on AI automation, business process automation, AI agents automation, and LLM-powered applications that integrate seamlessly into existing workflows. I work with companies looking to move beyond simple chatbots and build intelligent systems that can actually perform tasks whether that means automating operations, handling customer interactions, processing documents, qualifying leads, managing CRM pipelines, or connecting multiple business tools into one efficient workflow. My recent work includes building solutions using OpenAI, Claude, n8n, GoHighLevel (GHL), LangChain, LangGraph, vector databases, and custom integrations to create scalable automation systems. Some of the solutions I build include: - AI agents that can reason, make decisions, and execute tasks - Business workflow automation using n8n, GoHighLevel (GHL), and custom integrations - AI chatbots and conversational assistants - Voice AI systems for real-time interactions - RAG-based knowledge assistants using internal company data - GoHighLevel CRM automation, pipeline management, and lead nurturing - CRM and lead management automation - Email, SMS, and outreach automation - Document processing and intelligent data extraction - Multi-step AI workflows that connect APIs, databases, and business tools I have extensive experience working with OpenAI, Claude, ChatGPT, n8n, GoHighLevel (GHL), LangChain, LangGraph, Pinecone, Weaviate, ChromaDB, Python, FastAPI, PostgreSQL, Selenium, and enterprise integrations. Beyond automation, I also bring strong engineering experience in data processing, web scraping, predictive systems, and scalable backend architecture. What sets my work apart is practicality. I do not build AI demos, I build systems that businesses can actually use. Whether you need an AI agent, GoHighLevel automation, business automation workflow, OpenAI or Claude-powered assistant, RAG application, chatbot, voice AI solution, or a custom automation platform, I can help design and deliver a reliable production-ready solution. I value clear communication, long-term partnerships, and building solutions that genuinely save time and improve operations. Looking forward to working together. Keywords AI LangChain Anthropic Claude API LLM Prompt Engineering GPT-4 RAG Computer Vision OCR ElevenLabs Retell AI Vapi Voice AI Speech-to-Text Text-to-Speech Automation Google Sheets Automation Airtable HubSpot Monday .com Notion API Microsoft Power Automate ActiveCampaign Kommo Zoho CRM HighLevel Gmail API Development FastAPI Next js React Supabase PostgreSQL MySQL NestJS TypeScript MongoDB

Experience in Machine Learning with Python - About 12 Months. Completed Data Science Masters Certification from SimpliLearn (Online Training and Certification provider). Had written various technical documents as part of my work earlier. Experience with Big Data Analytics - 4 Months Experience with C++ - more than 12 years Experience with C#.Net - more than 5 years Experience with SQL Programming and Databases - more than 15 years Professional with 25 years of overall experience in: 1) Data Science Masters (certified) 2) Machine Learning with Python (certified) 3) C++ Desktop Development 4) Database development 5) Data Analysis and Engineering

I help businesses turn scattered data into clear, actionable dashboards and automated systems — and increasingly, into smarter AI-powered tools on top of that data. ⭐ 100% Job Success | Top Rated on Upwork | 35 jobs, 400+ hours delivered OPEN-SOURCE LLM - Fine-tuning and adapting pre-trained models (Llama, Qwen, Gemma, BERT) for domain-specific tasks - Prompt engineering and inference optimization for production use - Comfortable with LoRA/quantization techniques to run models efficiently - Integrating fine-tuned or API-based LLMs into real applications — web apps (FastAPI/Flask backends) and Windows desktop apps (leveraging my existing .NET background) — so the model becomes a usable product, not just a notebook DATA & ANALYTICS (my core strength) - Looker Studio & Tableau dashboards that turn GA4, Google Ads, BigQuery, Shopify, and CallRail data into decisions your team can act on - BigQuery pipeline design and optimization, from raw data ingestion to reporting-ready tables - Advanced SQL: stored procedures, CTEs, aggregate functions, pivots, performance tuning - ASP.NET / VB.NET web and desktop applications with SQL Server backends AI & CHATBOTS (growing focus) - Built RAG-based chatbots and text-to-SQL assistants using LangChain, OpenAI, and vector search - Comfortable with prompt engineering and FastAPI-based backends for AI tools Recent client feedback: "Highly skilled data visualization expert... translates datasets into clear, actionable insights." "Great job, knows what he's doing." I communicate proactively, respond within hours, and deliver on time — happy to start with a small paid trial task if you want to see quality before committing to a bigger project. BigQuery, Data Visualization, Looker Studio, Tableau, SQL, Microsoft SQL Server, Data Engineering, Google Cloud Platform, ASP.NET Core, VB.NET, API Integration, Chatbot Development, Python, LangChain, RAG (Retrieval Augmented Generation), AI Development

I'm a Software & Business Developer specializing in mid to large eCommerce companies. When an eCommerce business grows beyond the startup phase, the quick, short-term solutions that once worked often start breaking down. That’s when infrastructure becomes essential — and that’s where I come in. I help growing teams build that next layer of structure by implementing real, scalable systems. My focus is on making operations more efficient, connected, and ready for scale. Some examples of what I do: Evaluating and implementing Order Management Systems (OMS) Automating internal processes that drain time and resources Building custom reporting tools for finance and accounting teams Creating integrations to connect isolated systems and platforms To get the most value from my work, I only take on projects where there's already an OMS/ERP in place, or a clear intention to implement one. I’ve worked with a range of platforms, including: Cin7, CommerceHub, Linnworks, Odoo, Sellercloud, Skubana, SKUvault, and Zentail.