Hybrid .NET Back-End Engineer — REST APIs

Crionet; Monterotondo; Hybrid; EUR 25,000 - 35,000; Full time

Job summary

Crionet in Monterotondo (Rome) is seeking a mid-level Software Developer with strong C#/.NET and web app experience to own features end-to-end. You will design, implement, test, and deploy web applications, RESTful APIs, and data access layers while collaborating with product teams to deliver reliable, scalable solutions.

The role requires 3–5 years of hands-on development, proficiency in SQL and EF Core, and a pragmatic, autonomous approach to problem-solving.

Qualifications

• Solid professional experience in software development, 3–5 years, with C#, ASP.NET Core and web app development using Razor Views (MVC).
• Experience designing and developing RESTful APIs and back-end services.
• Strong knowledge of relational databases (SQL Server or PostgreSQL).
• Experience with ORM frameworks such as Entity Framework Core.
• Solid understanding of object-oriented programming, SOLID principles, and design patterns.

Responsibilities

• Web app development using C# and .NET (Razor Views).
• API development: RESTful APIs integration and security.
• Technical ownership from requirements to deployment and maintenance.
• Database development: SQL queries, relational databases, ORM data access.
• Debug, troubleshoot, and optimize existing applications.
• Code quality: reviews and engineering best practices.
• Architecture and performance: scalability and security considerations.
• Mobile development: cross-platform contributions when needed.
• Collaborate with product teams and stakeholders.
• Maintain technical documentation.

Skills

C#

ASP.NET Core

RESTful APIs

SQL Server

Entity Framework Core

SOLID principles

Git

Cloud architectures

Debugging

Architecture & performance

Tools

Docker

Kubernetes

React

Azure

AWS

Job description

Crionet in Monterotondo (Rome) is seeking a mid-level Software Developer with strong C#/.NET and web app experience to own features end-to-end. You will design, implement, test, and deploy web applications, RESTful APIs, and data access layers while collaborating with product teams to deliver reliable, scalable solutions.

The role requires 3–5 years of hands-on development, proficiency in SQL and EF Core, and a pragmatic, autonomous approach to problem-solving.