Full Stack Microsoft Developer

GTN Technical Staffing

We are seeking an experienced Â Full-Stack Microsoft Developer Â 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#, Â ASP.NET Â Core, Blazor or React with .NET backend).
Architect and deploy scalable solutions on Â Azure Cloud Â (App Services, Azure Functions, Azure SQL/PostgreSQL Flexible Server, Key Vault, Azure AD B2C, Application Insights, etc.).
Build and enhance Â AI-powered websites Â and features using Azure AI services (OpenAI, Azure Cognitive Services, Semantic Kernel, or custom ML models).
Develop and optimize RESTful/GraphQL APIs with Â PostgreSQL Â 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 Â NetSuite ERP Â using Â Celigo Â ( 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 Â Azure Cloud Â services and architecture (certifications such as AZ-204 or AZ-400 a plus).
Proven experience building Â AI-enhanced web applications Â (chatbots, intelligent search, content generation, or recommendation engines).
Advanced experience with Â PostgreSQL Â database design, performance tuning, and API development (REST + GraphQL).
Direct, demonstrable experience integrating with Â NetSuite ERP Â using Â Celigo Â ( Integrator.io ) â 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.

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Vacancy posted 6 days ago

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