-.Net developer

SFE; Pennington (NJ); On-site; USD 100,000 - 140,000; Full time

Job summary

SFE is seeking a .NET Developer to design, develop, and maintain high‑quality C#/.NET applications. You will build RESTful APIs and microservices, implement security and authentication, and work with SQL Server to optimize data access.

Join a collaborative team using Agile methodologies, participate in code reviews, and contribute to CI/CD pipelines and DevOps practices while ensuring scalable and performant solutions.

Qualifications

• Strong experience with C#, ASP.NET Core, and .NET technologies.
• Hands-on with RESTful APIs, microservices, and cloud integration.
• Deep knowledge of SQL Server, stored procedures, functions, and performance tuning.
• Experience with MVC architecture, Razor Pages, Blazor, and DI/design patterns.
• Familiarity with authentication/authorization (OAuth2, JWT, OpenID Connect, SSO).

Responsibilities

• Design, develop, and maintain C#/.NET applications.
• Develop and consume RESTful APIs and microservices.
• Create and optimize SQL Server databases, queries, stored procedures, and views.
• Collaborate with analysts, architects, QA, and stakeholders to deliver solutions.
• Participate in architecture discussions, design reviews, and code reviews.
• Implement security best practices and authentication mechanisms.
• Troubleshoot issues and perform root cause analysis.
• Develop automated unit and integration tests.
• Support CI/CD pipelines and DevOps practices.
• Participate in Agile ceremonies and sprint planning.
• Ensure scalability, performance, and maintainability of applications.

Skills

C#

ASP.NET

ASP.NET Core

NET Framework

EF/LINQ

ADO.NET

SQL Server

Stored Procedures

Performance Tuning

MVC

Razor Pages

Blazor

DI

Design Patterns

Azure

RabbitMQ

Azure Service Bus

Kafka

OAuth2

JWT

OpenID Connect

SSO

Git

Azure DevOps

CI/CD

Docker

Kubernetes

Unit Testing

NUnit

xUnit

MSTest

Agile/Scrum

Tools

Angular

React

JavaScript

TypeScript

HTML5

CSS3

Bootstrap

jQuery

Job description

.Net Developer

Must Have Technical/Functional Skills

Technical Skills

• Strong experience in C#, ASP.NET, ASP.NET Core, .NET Framework, .NET 6/7/8
• Hands‑on experience with Web API, RESTful Services, Microservices Architecture
• Proficiency in Entity Framework (EF), LINQ, ADO.NET
• Strong knowledge of SQL Server, Stored Procedures, Functions, and Performance Tuning
• Experience with MVC Architecture, Razor Pages, and Blazor
• Familiarity with Dependency Injection (DI) and Design Patterns
• Experience with Azure Cloud Services (App Services, Functions, Storage, Key Vault)
• Knowledge of Message Queues (RabbitMQ, Azure Service Bus, Kafka)
• Experience with Authentication & Authorization (OAuth2, JWT, OpenID Connect, SSO)
• Hands‑on experience with Git, Azure DevOps, CI/CD Pipelines
• Understanding of Docker, Kubernetes, Containerization
• Experience with Unit Testing using NUnit, xUnit, MSTest
• Knowledge of Agile/Scrum methodologies

Front-End Skills (Preferred)

• Angular, React, JavaScript, TypeScript
• HTML5, CSS3, Bootstrap
• jQuery

Soft Skills

• Strong analytical and problem-solving abilities
• Excellent communication and stakeholder management
• Ability to work in Agile teams
• Experience in code reviews and mentoring junior developers

Roles & Responsibilities

• Design, develop, and maintain applications using C#, ASP.NET Core, and .NET technologies.
• Develop and consume RESTful APIs and Microservices.
• Create and optimize SQL Server databases, queries, stored procedures, and views.
• Collaborate with business analysts, architects, QA teams, and stakeholders to deliver high-quality solutions.
• Participate in system architecture, technical design, and code reviews.
• Implement security best practices, authentication, and authorization mechanisms.
• Troubleshoot application issues and perform root cause analysis.
• Develop automated unit and integration tests.
• Support CI/CD pipelines and DevOps practices.
• Participate in Agile ceremonies including sprint planning, stand-ups, and retrospectives.
• Ensure application scalability, performance, and maintainability.