.NET Developer

Astir IT Solutions, Inc.; Summit (NJ); Hybrid; USD 90,000 - 120,000; Full time

Job summary

Astir IT Solutions, Inc. in New Jersey is seeking a Mid-Level .NET Developer to join our technology team. The candidate will develop, enhance, and maintain scalable web applications using the Microsoft .NET stack.

Responsibilities include building RESTful APIs, web services, and front-end components with HTML/CSS/JavaScript (Angular/React), working with SQL Server, and contributing to the full software development lifecycle in an Agile environment.

Qualifications

• 3–6 years of professional software development experience.
• Strong proficiency in C# and the .NET stack including ASP.NET Core, MVC, and Web API.
• Experience with SQL Server, REST APIs, and Git.

Responsibilities

• Design, develop, test, and maintain applications using C#, .NET Core/.NET 6+, and ASP.NET.
• Build and maintain RESTful APIs and web services.
• Develop web applications using HTML, CSS, JavaScript (Angular/React).
• Work with SQL Server, including queries, stored procedures, and optimization.
• Participate in the complete software development lifecycle in Agile/Scrum.

Skills

C#

.NET Core/.NET 6+

ASP.NET Core

MVC

Web API

SQL Server

REST APIs

OOP SOLID

Git

Unit testing

Communication skills

Education

Tools

Azure DevOps

Azure

Docker

CI/CD

Job description

Mid-Level .NET Developer

Location: New Jersey
Employment Type: Full-Time
Experience Level: Mid-Level (5–6 years)
Work Authorization: W2, OPT, orcandidates only

Job Summary

We are seeking a skilled Mid-Level .NET Developer to join our technology team in New Jersey. The ideal candidate will have hands‑on experience developing, enhancing, and maintaining scalable web applications using the Microsoft .NET technology stack.

Key Responsibilities

• Design, develop, test, and maintain applications using C#, .NET Core/.NET 6+, and ASP.NET.


• Build and maintain RESTful APIs and web services.


• Develop web applications using HTML, CSS, JavaScript, Angular, or React.


• Work with SQL Server, including complex queries, stored procedures, and performance optimization.


• Participate in the complete software development lifecycle.


• Write clean, maintainable, reusable, and well‑documented code.


• Troubleshoot application issues and resolve production defects.


• Participate in code reviews and follow development best practices.


• Work with Git and modern CI/CD processes.


• Collaborate with QA, business analysts, architects, and other developers.


• Work effectively in an Agile/Scrum environment.

Required Qualifications

• 3–6 years of professional software development experience.


• Strong proficiency in C# and .NET / . .NET Core.


• Experience with ASP.NET Core, MVC, and Web API.


• Strong experience with SQL Server.


• Experience developing and consuming REST APIs.


• Good understanding of OOP, SOLID principles, and design patterns.


• Experience with Git and source control.


• Familiarity with unit testing and automated testing.


• Strong communication and problem‑solving skills.

Preferred Qualifications

• Experience with Angular or React.


• Experience with Microsoft Azure.


• Familiarity with Azure DevOps and CI/CD.


• Experience with Entity Framework Core and LINQ.


• Knowledge of Docker and microservices.


• Familiarity with messaging technologies such as Azure Service Bus, RabbitMQ, or Kafka.