Senior .NET Engineer: Azure, Microservices & APIs

Valiant Technologies LLC; Boston (MA); On-site; USD 100,000 - 140,000; Full time

Job summary

Valiant Technologies LLC is seeking a skilled .NET developer to design, build, and maintain scalable web applications. You will work with C#, ASP.NET Core, REST APIs, and cloud services to deliver enterprise solutions.

You will implement business logic, integrate with frontend apps (Angular/React), and optimize database access using EF Core and SQL Server. Join a collaborative Agile team and contribute to DevOps practices.

Qualifications

• Experience designing and developing scalable web applications using C# and .NET technologies.
• Hands-on experience with RESTful services and backend integration.
• Proficiency with SQL Server, stored procedures, and ORM (EF/EF Core).
• Familiarity with modern frontend frameworks and integrating with backend APIs.
• Knowledge of authentication/authorization mechanisms (JWT, OAuth2).
• Experience with Azure cloud services and DevOps tooling.

Responsibilities

• Design, develop, and maintain scalable web applications using C# and .NET Stack.
• Build RESTful Web APIs to support enterprise integrations.
• Implement business logic, OOP patterns, and reusable components.
• Develop database objects and optimize SQL queries for performance.
• Use EF/EF Core for data access and ORM operations.
• Integrate frontend apps with backend APIs (Angular/React).
• Ensure security with Identity, JWT, OAuth2, and RBAC.
• Develop microservices for scalability and resilience.
• Collaborate in Agile/Scrum with QA and analysts.
• Write tests with xUnit, NUnit, and Moq; perform code reviews.

Skills

C#

.NET

ASP.NET Core

REST APIs

SQL Server

Entity Framework

Angular

React

Azure

Git

CI/CD

Authentication

Tools

Azure App Services

Azure Functions

Azure SQL Database

Job description

Valiant Technologies LLC is seeking a skilled .NET developer to design, build, and maintain scalable web applications. You will work with C#, ASP.NET Core, REST APIs, and cloud services to deliver enterprise solutions.

You will implement business logic, integrate with frontend apps (Angular/React), and optimize database access using EF Core and SQL Server. Join a collaborative Agile team and contribute to DevOps practices.