Senior ASP.NET Developer | FORFIRM

FORFIRM CONSULTING SAGL; Lugano; On-site; CHF 110,000 - 160,000; Full time

Job summary

FORFIRM CONSULTING SAGL in Lugano is seeking a Senior ASP.NET Developer to design and implement web applications and backend services using C# and ASP.NET Core. The candidate should have strong SOLID, design patterns, and modern architectures, with experience in distributed systems, NServiceBus, and RabbitMQ.

The role involves building REST APIs, EF Core, SQL Server, and Azure-based services, along with testing using xUnit/NUnit.

Qualifications

• Proven experience as a Senior ASP.NET Developer.
• Strong knowledge of SOLID principles and design patterns.
• Experience with asynchronous messaging and distributed systems.
• Hands-on with REST APIs, EF Core, and SQL Server.

Responsibilities

• Analyze functional and technical requirements.
• Design robust, scalable software solutions.
• Develop web applications and REST APIs using ASP.NET Core.
• Apply SOLID principles and design patterns effectively.
• Implement asynchronous processes using NServiceBus and RabbitMQ.
• Design components following Clean Architecture principles.
• Collaborate with Business Analysts, Project Managers, and other developers.
• Ensure software quality through unit testing, code reviews, and best practices.

Skills

SOLID principles

Design Patterns

Clean Code

Distributed Systems

Tools

C#

ASP.NET Core

.NET 8/9/10

Entity Framework Core

SQL Server

REST APIs

Git

Unit Testing (xUnit, NUnit)

Job description

We are looking for a Senior ASP.NET Developer with proven experience in developing web applications and backend services using C# and ASP.NET Core.

The ideal candidate has a strong background in software design, with a solid understanding and practical application of SOLID principles, key Design Patterns, and modern software architectures.

Experience in building distributed systems and implementing asynchronous communication using NServiceBus and RabbitMQ is also required.

Technologies

• C#
• ASP.NET Core
• .NET 8, 9, or 10
• Entity Framework Core
• SQL Server
• REST APIs
• Git
• Unit Testing (xUnit, NUnit)

Software Development Principles

• SOLID
• Clean Code

Design Patterns

• Repository Pattern
• Unit of Work
• Factory Pattern
• Strategy Pattern
• Builder Pattern
• Mediator Pattern
• CQRS
• Repository

Architectures and Design Approaches

• Clean Architecture
• Domain-Driven Design (DDD)
• Event-Driven Architectures
• Distributed Systems
• Asynchronous Service Communication

Preferred Skills

• NServiceBus
• RabbitMQ
• Queue and Message Management
• Message Processing Error Handling
• Retry Mechanisms and Dead Letter Queues
• Consumer Idempotency
• Asynchronous Events and Commands
• Microsoft Azure

Responsibilities

• Analyze functional and technical requirements.
• Design robust and scalable software solutions.
• Develop web applications and REST APIs using ASP.NET Core.
• Apply SOLID principles and Design Patterns effectively.
• Implement asynchronous processes using NServiceBus and RabbitMQ.
• Design components following Clean Architecture principles.
• Collaborate with Business Analysts, Project Managers, and other developers.
• Ensure software quality through unit testing, code reviews, and development best practices.