With 15+ years of experience delivering enterprise software solutions, I help startups, SMBs, and Fortune-level organizations build scalable, secure, and high-performance applications that solve real business problems.
Throughout my career, I have successfully delivered 150+ enterprise projects, built applications serving 5M+ users, designed 1,000+ APIs and integrations, and led engineering teams of up to 24 software professionals. I specialize in modernizing legacy systems, designing cloud-native architectures, integrating AI capabilities, and building enterprise platforms that scale.
I don't just write code—I design technology solutions that create measurable business value.
Core Expertise
✅ Enterprise Software Development
✅ Full Stack Development (React, Node.js, .NET, Next.js)
✅ AI Solutions & LLM Integration (OpenAI, Claude, Gemini, Azure OpenAI, AI Agents, MCP)
✅ Enterprise Architecture & System Design
✅ Cloud Architecture (AWS)
✅ REST APIs & Microservices
✅ SaaS Platforms & Multi-Tenant Applications
✅ Performance Optimization
✅ Security & Authentication (OAuth2, OpenID Connect, JWT, MFA)
✅ Database Design & Optimization
✅ Technical Leadership & Agile Delivery
Technologies
Frontend
React • Next.js • Angular • JavaScript • TypeScript • HTML5 • CSS3
Backend
Node.js • C# • .NET • ASP.NET Core • REST APIs • GraphQL
AI & Automation
OpenAI • Claude • Gemini • Azure OpenAI • AI Agents • MCP • AI Chatbots • AI Voice • OCR • Intelligent Document Processing • Prompt Engineering
Cloud
AWS (EC2, ECS, EKS, Lambda, API Gateway, S3, CloudFront, Route53, RDS, DynamoDB, Aurora, SNS, SQS, SES, IAM, WAF, ALB, CloudWatch)
Databases
SQL Server • MongoDB • PostgreSQL • MySQL • Redis
Industries
✔ Insurance
✔ Healthcare
✔ LMS & EdTech
✔ CRM
✔ Enterprise SaaS
✔ E-Commerce
✔ Real Estate
✔ Franchise Management
✔ FinTech
Notable Experience
Modernized a multi-tenant insurance platform serving 1M+ users through a complete migration from ASP.NET/.NET to React.
Led the architectural evolution of the Edible Arrangements global franchise platform supporting 1,300+ stores across 8 countries.
Designed and implemented 1,000+ enterprise APIs.
Built cloud-native applications and AI-powered enterprise solutions for US-based organizations.
Why Clients Hire Me
Clients work with me because I combine technical depth with business understanding.
I take ownership from architecture and planning to development, deployment, optimization, and long-term scalability. Whether you need to build a product from scratch, modernize a legacy application, integrate AI capabilities, or architect a cloud-native enterprise platform, I focus on delivering solutions that are secure, maintainable, and built for growth.
Let's build software that scales—both technically and commercially.
Web Design
Software Development
Blockchain Architecture
Mobile Development Framework
Project Management
Project Plans
Product Management
Software Design
Product Roadmap
Project Analysis
Web Development
Blockchain Development
Agile Software Development
Game Development
iOS Development
AI Agent Development
AI Consulting
AI Development
Nidhi G.
Surat, India
$15/hr
5.0
2 jobs
I build scalable, production-ready .NET and Azure platforms — microservices, SaaS dashboards, enterprise APIs, and React/Angular frontends — delivered on time and built to last.
12+ years as a .NET Architect and Full Stack Developer, leading end-to-end architecture and delivery for Fortune 500 companies and funded startups across healthcare, finance, logistics, and e-commerce. I combine deep ASP.NET Core backend expertise with Azure cloud-native deployment and modern React/Angular frontends, so you get one engineer who owns the complete system — not a handoff between five specialists.
WHAT I BUILD
✅ Scalable microservices with .NET 8/10 — clean architecture, CQRS, event-driven design
✅ Azure PaaS deployments — App Service, AKS, Service Bus, Azure SQL, Azure DevOps
✅ React and Angular frontends — SSO, role-based access, real-time dashboards
✅ CI/CD pipelines — GitHub Actions, Azure DevOps, Jenkins — zero-downtime releases
✅ SQL Server & PostgreSQL performance tuning — deadlock resolution, query optimization
✅ HIPAA-compliant healthcare, finance, and logistics platforms
✅ ASP.NET Zero multi-tenant SaaS architecture
✅ SignalR/WebSocket real-time applications
✅ NopCommerce, Shopify, and e-commerce platform development
RECENT OUTCOMES
- Designed a healthcare practitioner search platform scaling across AWS with real-time Elasticsearch
- Led a US logistics platform revamp using .NET 10 + React + Angular, cutting deployment time significantly
- Built 20+ e-commerce platforms processing millions in transactions with ASP.NET Core and NopCommerce/Shopify
- Delivered HIPAA-compliant EHR, LIMS, and healthcare SaaS systems for US-based clients
- Managed teams of up to 12 developers on enterprise projects
- Migrated legacy .NET applications to Azure with zero production downtime
- Resolved deadlock and performance issues on SQL Server databases with 1M+ records
WHO HIRES ME
Clients bring me in as a .NET Architect, ASP.NET Core Developer, Full Stack .NET + React/Angular Developer, Azure Cloud Architect, SaaS Developer, or SQL Server Database Architect — for projects ranging from new build to legacy modernization.
TECH STACK
Backend: ASP.NET Core, ASP.NET MVC, Web API, .NET 6/8/10, C#, Entity Framework, CQRS, Clean Architecture, Microservices, Node.js, TypeScript
Frontend: React, Angular, AngularJS, TypeScript, JavaScript, HTML5, CSS3, Bootstrap, Tailwind CSS
Cloud & DevOps: Microsoft Azure, AWS, Azure DevOps, GitHub Actions, Jenkins, Docker, Kubernetes (AKS), CI/CD, Azure Service Bus, Azure SQL, Azure AD, SSO
Databases: SQL Server, PostgreSQL, Query Optimization, Database Design, Deadlock Resolution, Index Tuning, Stored Procedures, SSRS
Integrations: REST API, SignalR, WebSockets, Power BI, Elasticsearch, HubSpot, Stripe, NopCommerce, WordPress, Shopify
AI & Automation: OpenAI API, ChatGPT Integration, N8n, Automation Workflows, Real-time Data Pipelines
CERTIFICATIONS
🏅 Microsoft Certified: Azure Solutions Architect Expert
🏅 Microsoft Certified: Azure Developer Associate
🏅 Microsoft Certified Professional
Send me a message with a short project description — I typically respond within a few hours and can share a relevant architecture approach on our first call.
.NET Core
ASP.NET Web API
C#
ASP.NET MVC
Angular
React
Microsoft SQL Server
Git
Entity Framework
Azure DevOps
Azure App Service
CI/CD
Microservice
Web Design
PostgreSQL
Mohamed W.
Cairo, Egypt
$50/hr
5.0
3 jobs
I'm a senior software engineer and tech lead with 8 years of experience building highly scalable systems at Amazon.com and Microsoft. I have a proven track record of delivering results at the highest standards. I also recently earned an expert-vetted badge on Upwork, which is only awarded to the top 1% of talent.
Most recently, I founded and led the Bing Ads delivery engine team at Microsoft Egypt. I also co-founded Sahl, a successful payments startup in Egypt, where I scaled the product to serve millions of customers. Before that, I designed and scaled Amazon's demographic segment ingestion pipelines across the US and EU.
I am here on Upwork on a full-time basis for a few months to build my online software services business.
Apache Spark
API
Python
SQL
Amazon Web Services
Requirements Specification
Automated Deployment Pipeline
CI/CD
.NET Core
Team Management
Cross Functional Team Leadership
Akash L.
Ahmedabad, India
$15/hr
4.9
56 jobs
10+ Years Building Enterprise Software
Microsoft Azure Certified | AI Solutions Architect | Full Stack Technical Developer
Looking for a senior engineer who can architect, build, and scale secure, cloud-native applications with modern AI capabilities?
I help startups, SaaS companies, and enterprises transform ideas into scalable, high-performance software using Microsoft .NET, Node, Azure, AI, and modern web technologies. Whether you're building a new product, modernizing a legacy application, migrating to the cloud, or integrating Generative AI, I deliver end-to-end solutions that are secure, maintainable, and built for long-term growth.
Over the past 10+ years, I've successfully delivered enterprise applications across various industries, including Healthcare, Finance, Construction, Manufacturing, Logistics, Retail, Education, Insurance, and SaaS. I work as a Solution Architect, Technical Lead, or Senior Full Stack Engineer, depending on your project requirements.
Core Expertise
Enterprise Application Development
• Microsoft .NET (ASP.NET Core, C#)
• Node.JS
• REST APIs & GraphQL APIs
• Microservices Architecture
• Clean Architecture
• Domain-Driven Design (DDD)
• CQRS & Event-Driven Architecture
• Multi-Tenant SaaS Applications
• High-Performance & Scalable Systems
Cloud & DevOps
• Microsoft Azure
• Azure App Services
• Azure Functions
• Azure Service Bus
• Azure API Management
• Azure Key Vault
• Azure SQL & Cosmos DB
• Azure DevOps
• Docker & Kubernetes
• GitHub Actions
• CI/CD Automation
• Cloud Infrastructure & Deployment
AI & Intelligent Solutions
• OpenAI API
• Azure OpenAI Service
• Anthropic Claude
• Google Gemini
• Microsoft Copilot Integration
• AI Agents
• LangChain
• Semantic Kernel
• Retrieval-Augmented Generation (RAG)
• Model Context Protocol (MCP)
• Vector Databases
• AI Chatbots & Virtual Assistants
• AI Search & Knowledge Bases
• OCR & Document Intelligence
• Prompt Engineering
• Function Calling & Tool Integration
• Intelligent Workflow Automation
Automation & Integrations
• n8n
• Microsoft Power Automate
• Zapier
• Make
• Webhooks
• Third-Party API Integrations
• Stripe
• Twilio
• SendGrid
Frontend Technologies
• React
• Angular
• Blazor
• Next.js
• TypeScript
• JavaScript
Databases
• Microsoft SQL Server
• PostgreSQL
• MongoDB
• Redis
• Elasticsearch
Industries Served
• Healthcare
• Finance & FinTech
• Construction & Project Management
• Manufacturing
• Logistics & Supply Chain
• Retail & E-commerce
• Education
• Insurance
• Enterprise SaaS
What I Deliver
• Enterprise SaaS Platforms
• AI-Powered Business Applications
• Cloud-Native Azure Solutions
• AI Agents & Intelligent Automation
• Secure APIs & Microservices
• High-Performance System Architecture
• Legacy Application Modernization
• Multi-Tenant SaaS Platforms
• End-to-End Product Development
Why Clients Choose Me
• 10+ years of enterprise software development experience
• Solution-focused approach with strong business understanding
• Clean, maintainable, production-ready code
• Scalable architecture designed for long-term growth
• Excellent communication and proactive project ownership
• Reliable long-term technical partner
Whether you need to build an MVP, develop an enterprise platform, integrate Generative AI, migrate to Microsoft Azure, or scale an existing application, I can help you deliver reliable, high-quality software that drives real business value.
Let's discuss your project and build something exceptional together.
.NET Stack
.NET Core
Microsoft Azure
AWS Development
Microservice
AI Development
SQL
PostgreSQL
MongoDB
SaaS Development
React
Angular
Next.js
AI Platform
PaaS
TypeScript
AI Agent Development
Machine Learning
Azure DevOps Server
ASP.NET
Ivan G.
Skopje, North Macedonia
$35/hr
5.0
9 jobs
I build and run infrastructure on Azure AKS. That includes a multi tenant AI platform I run in production, LiteLLM and Azure AI Foundry as the LLM gateway layer, Langfuse v3 for observability, ArgoCD handling GitOps deployments.
CKA certified, passed at 88 percent. AZ 104 as well. 5 years running production clusters for European enterprise clients across utilities, manufacturing, and tech.
Biggest wins:
Cut AKS infrastructure costs by 50 percent through right sizing and node pool consolidation.
Cut monitoring spend by 60 percent by replacing Azure Log Analytics with self hosted Loki and Grafana.
Migrated production clusters to Azure Workload Identity. No more service principal secrets sitting in code.
What I deliver:
Multi tenant AI platform infrastructure. LiteLLM, Azure AI Foundry, Langfuse, CloudNativePG, ClickHouse, Valkey.
Production AKS ops, cost optimization, incident response.
GitOps pipelines with ArgoCD, Terraform and Terragrunt, Azure DevOps and GitLab CI.
Observability stacks. Prometheus, Grafana, Loki, Grafana Alloy.
Security hardening. Workload Identity, OIDC federation, RBAC, Trivy CVE scanning, SBOM generation with Dependency Track.
Kubernetes
Azure DevOps
GitLab
Azure OpenAI Service
Microsoft Azure Administration
Microsoft Azure SQL Database
DevOps Engineering
Linux
CI/CD
Grafana
Amazon ECS for Kubernetes
Matt T.
Granite Quarry, North Carolina
$42/hr
5.0
7 jobs
I'm the founder of AppSolo LLC where I build modern cloud applications for businesses using Azure, React, Node.js, PostgreSQL, and React Native.
Recently I designed, built, and deployed a production Survey Portal that is now live in Microsoft Azure. The platform includes secure authentication, role-based permissions, dynamic survey construction, conditional skip logic, reporting, PostgreSQL data modeling, and cloud deployment.
I enjoy solving business problems more than simply writing code. Whether that's designing APIs, building dashboards, architecting databases, or deploying scalable cloud infrastructure, my focus is delivering software that businesses actually use.
Areas I specialize in include:
• Full Stack Web Development
• Azure Cloud Architecture
• Node.js / Express APIs
• React
• PostgreSQL Database Design
• Mobile Apps (React Native / Expo)
• REST APIs
• Authentication & Authorization
• Docker
• GitHub Actions CI/CD
• Azure App Services
• Azure PostgreSQL Flexible Server
• Azure Container Apps
• Application Architecture
• SaaS Development
Past experience includes enterprise software development in healthcare, data acquisition systems, reporting platforms, Rust services, and PostgreSQL data pipelines.
If you're looking for someone who can own a project from planning through production deployment, I'd love to help.
Data Analysis
Software Development
MongoDB
HTML5
ExpressJS
CSS 3
React
Node.js
SQL
PostgreSQL
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