05/18/2025 updated

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Senior Developer & Architect | Gen AI Expert

Wroclaw, Poland
Worldwide
Bachelors of Engineering
Wroclaw, Poland
Worldwide
Bachelors of Engineering

Profile attachments

Diwakar_Kumar_Resume.pdf

ASP.NETApplication Programming Interfaces (APIs)Artificial IntelligenceAmazon Web ServicesData AnalysisArchitectureHTML5AutomationMicrosoft AzureC Sharp (Programming Language)Cascading Style Sheets (CSS)Software as a ServiceCloud ComputingDatabasesDjangoDocument ProcessingDocument RetrievalUser Interface DesignPython (Programming Language)PostgreSQLMachine LearningMicrosoft SQL ServersMongoDBNode.jsNext.jsChatbots.NET CoreReact.jsLarge Language ModelsGenerative AIBackendFastAPIAngularJSKubernetesFull Stack DevelopmentCosmos DBFront End Software DevelopmentRegion ManagementReact ReduxRestful ApiGPTApi ManagementServerless ComputingDockerWeb ApiMicroservices
Overview
Experienced Developer and Solution Architect with 10+ years of hands-on expertise in designing, developing, and deploying complex cloud-based solutions using Python, C#, ReactJS, AngularJS, Web API, and Azure Cloud.
Specialized in Generative AI (LLMs, RAG, OpenAI, LangChain, Hugging Face) and AI-driven automation, with a strong background in microservices, serverless architectures, and scalable cloud applications.
Proven track record of delivering high-performance, secure, and cost-efficient solutions for enterprises and startups.
Core Skills & Expertise
Cloud & Backend Development
✔ Cloud Platforms: Azure (Functions, App Services, AKS, Cognitive Services), AWS (Lambda, ECS), GCP
✔ Backend: Python (Django, FastAPI), C# (.NET Core, ASP.NET), Node.js (NextJS)
✔ API & Microservices: RESTful APIs, Azure API Management
✔ Database: SQL Server, Cosmos DB, PostgreSQL, MongoDB

Frontend & Full-Stack Development
✔ Frontend Frameworks: ReactJS, AngularJS, Next.js
✔ UI/UX: HTML5, CSS3, TailwindCSS, Material-UI
✔ State Management: Redux, NgRx, Context API

Generative AI & Machine Learning
✔ LLM Integration: OpenAI GPT, LangChain, LlamaIndex, Hugging Face
✔ AI Solutions: RAG (Retrieval-Augmented Generation), Chatbots, AI Agents, Document Processing

Solution Architect | Senior Full-Stack Developer
Freelance (Upwork & Private Clients) | 2018 – Present
  • Designed and deployed AI-powered SaaS platforms using Gen AI (OpenAI, LangChain) for automated content generation and data analysis.
  • Built scalable cloud applications on Azure (App Services, Functions, AKS) with Python, C#, and ReactJS.
  • Developed enterprise-grade microservices with .NET Core, Docker, and Kubernetes for high-availability systems.
  • Integrated LLM-based chatbots with RAG architecture for real-time document retrieval and response generation.

Experience

Professional experience10+ years
Freelancer since2020

Languages

EnglishFluent

Project history

Solution Architect | Senior Full-Stack Developer

Private Clients
Freelance (Private Clients) | 2020 – Present
  • Designed and deployed AI-powered SaaS platforms using Gen AI (OpenAI, LangChain) for automated content generation and data analysis.
  • Built scalable cloud applications on Azure (App Services, Functions, AKS) with Python, C#, and ReactJS.
  • Developed enterprise-grade microservices with .NET Core, Docker, and Kubernetes for high-availability systems.
  • Integrated LLM-based chatbots with RAG architecture for real-time document retrieval and response generation.


Key Projects Delivered
✅ AI-Powered Legal Document Analyzer – Built a Gen AI (GPT-4 + LangChain) solution to extract, summarize, and answer queries from legal contracts.
✅ Cloud-Based Healthcare Analytics Platform – Developed a Python + ReactJS dashboard with Azure Functions & Cosmos DB for real-time patient data insights.
✅ Automated Invoice Processing System – Used Azure Form Recognizer + OpenAI to extract and process invoices with 95% accuracy.
✅ Enterprise E-Commerce Portal – Architected a .NET Core + AngularJS platform with Azure Kubernetes (AKS) for scalability.

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