Sr. .NET Developer

FSS Gov Solutions; Woodlawn (KY); On-site; USD 120,000 - 160,000; Full time

Job summary

FSS Gov Solutions seeks a Senior .NET Developer to join our team supporting a new contract with a Federal agency. You will design, build, and evolve modern, scalable applications using ASP.NET Core, while expanding your expertise in Microsoft Azure and the latest AI technologies.

You will collaborate with cross-functional teams in an Agile environment, contribute to RESTful API design, DevOps practices, and cloud-native development to deliver secure and performant software solutions for

Qualifications

• Strong expertise in C# and ASP.NET Core (5+ years).
• Experience building REST APIs and with SQL Server or PostgreSQL.
• Familiarity with Azure cloud services and AI tools.
• Experience with front-end frameworks (Angular, React, or Blazor).
• Experience with Infrastructure as Code (Bicep or Terraform).
• Docker and containerization knowledge.

Responsibilities

• Design, develop, and maintain scalable web applications using .NET 8 / ASP.NET Core.
• Architect and implement RESTful APIs and backend services with clean, maintainable code.
• Build and deploy cloud-native solutions on Microsoft Azure.
• Integrate and work with Azure AI services, including Azure OpenAI, Azure AI Studio, and Semantic Kernel.
• Collaborate with cross-functional teams to deliver new features using Agile methodologies.
• Participate in DevOps practices, including CI/CD pipelines, automated testing, and Infrastructure as Code.
• Continuously improve application performance, security, and scalability.

Skills

C#

ASP.NET Core

REST APIs

Azure

AI/NLP

Azure OpenAI

Semantic Kernel

Front-end frameworks

Python

Node.js

Terraform

Bicep

Docker

Azure DevOps

Tools

Azure DevOps

Terraform

Bicep

Docker

Job description

We are looking for a Senior .NET Developer to join our growing team supporting brand new contract in partnership with Microsoft supporting new product development (both software/hardware) for a Federal agency.

You will play a key role in designing, building, and evolving modern, scalable applications using ASP.NET Core while gaining deep exposure to Microsoft Azure and the latest Microsoft AI technologies.

This is an excellent opportunity for a strong .NET professional who wants to expand their expertise into cloud-native development and Artificial Intelligence within the Microsoft ecosystem.

Key Responsibilities:

• Design, develop, and maintain high-quality, scalable web applications using .NET 8 / ASP.NET Core
• Architect and implement RESTful APIs and backend services with clean, maintainable code
• Build and deploy cloud-native solutions on Microsoft Azure
• Integrate and work with Azure AI services , including Azure OpenAI, Azure AI Studio, and Semantic Kernel
• Collaborate with cross-functional teams to deliver new features using Agile methodologies
• Participate in DevOps practices, including CI/CD pipelines, automated testing, and Infrastructure as Code
• Continuously improve application performance, security, and scalability

What You’ll Gain Exposure To:

• Microsoft Azure Platform (App Services, Functions, Cosmos DB, Blob Storage, Container Apps, etc.)
• Microsoft AI Ecosystem (Azure OpenAI, Azure AI Services, Copilot Studio, and modern AI patterns)
• Modern cloud architecture and event-driven systems

Technical Requirements:

• Strong expertise in C# and ASP.NET Core (minimum 5+ years preferred)
• Deep experience building REST APIs with .NET 6 / .NET 7 / .NET 8
• Solid understanding of clean architecture, Domain-Driven Design, and modern development patterns
• Strong SQL skills with relational databases (SQL Server or PostgreSQL)

Valued Experience:

• Hands-on experience with Azure cloud services
• Exposure to Azure OpenAI or other AI/ML services
• Experience with front-end frameworks (Angular, React, or Blazor)
• Familiarity with Python or Node.js (a plus for AI-related tasks)
• Experience with Infrastructure as Code (Bicep or Terraform)
• Docker and containerization knowledge
• Azure DevOps and CI/CD pipelines

What We Offer You:

• Work on impactful projects combining .NET , Azure , and AI
• Structured learning path and hands-on mentorship in Microsoft’s AI ecosystem
• Opportunity to work with cutting-edge technologies in a supportive environment
• Career growth into Cloud Solution Architect or AI Engineer roles

Work Location: In person