Full Stack Microsoft Developer

This is a hands-on technical consulting role focused on building and maintaining scalable, AI-enhanced web solutions on Microsoft Azure, with deep PostgreSQL API development and NetSuite ERP integrations through Celigo. Develop and optimize RESTful/GraphQL APIs with PostgreSQL as the primary database, including Entity Framework Core, Dapper, advanced querying, indexing, and performance tuning.

We are seeking an experienced Full-Stack Microsoft Developer for a part-time consulting engagement to support the continued development, enhancement, and integration of our core web applications and enterprise systems. This is a hands-on technical consulting role focused on building and maintaining scalable, AI-enhanced web solutions on Microsoft Azure, with deep PostgreSQL API development and NetSuite ERP integrations through Celigo.You will work directly with our internal engineering and business teams on a flexible schedule, delivering high-impact solutions without full-time overhead.Key Responsibilities

• Design, develop, and maintain full-stack web applications using Microsoft technologies (.NET 6/8, C#, ASP.NET Core, Blazor or React with .NET backend).
• Architect and deploy scalable solutions on Azure Cloud (App Services, Azure Functions, Azure SQL/PostgreSQL Flexible Server, Key Vault, Azure AD B2C, Application Insights, etc.).
• Build and enhance AI-powered websites and features using Azure AI services (OpenAI, Azure Cognitive Services, Semantic Kernel, or custom ML models).
• Develop and optimize RESTful/GraphQL APIs with PostgreSQL as the primary database, including Entity Framework Core, Dapper, advanced querying, indexing, and performance tuning.
• Design, implement, and maintain bi-directional integrations between custom applications and NetSuite ERP using Celigo (Integrator.Io), including real-time and batch data syncs, custom flows, and error-handling frameworks.
• Provide technical consulting on architecture, code reviews, DevOps/CI-CD pipelines (Azure DevOps or GitHub Actions), and cloud cost optimization.
• Troubleshoot, debug, and resolve production issues across the full stack.
• Document technical designs, API specifications, and integration patterns.

Required Qualifications

• 5+ years of hands-on full-stack development experience with Microsoft technologies (.NET ecosystem).
• Strong expertise in Azure Cloud services and architecture (certifications such as AZ-204 or AZ-400 a plus).
• Proven experience building AI-enhanced web applications (chatbots, intelligent search, content generation, or recommendation engines).
• Advanced experience with PostgreSQL database design, performance tuning, and API development (REST + GraphQL).
• Direct, demonstrable experience integrating with NetSuite ERP using Celigo (Integrator.Io) —this is a hard requirement.
• Solid understanding of secure authentication (Azure AD, OAuth2, JWT), API security, and data privacy best practices.
• Strong communication skills and ability to work independently in a consulting capacity.

Preferred Experience

• Previous consulting or fractional CTO-level work.
• Experience with Blazor WebAssembly/Server or modern frontend frameworks (React + TypeScript).
• Familiarity with microservices, event-driven architecture, and Azure Event Grid/Service Bus.
• NetSuite SuiteScript or Celigo advanced mapping/transformations.
• Exposure to additional ERP/CRM platforms (Salesforce, Dynamics 365) is a bonus.