.NET Developer

Why are you looking for a job?

If your answer ticks all the boxes, this could be the start of a great collaboration.

• You have a curious mind - You won't understand what we're talking about if you don't 🤔
• You want to learn more around technology - You won't survive if you don't 😱
• You want to make the world a bit better - We don’t like you if you don’t 😎

We happen to be just like that as well. We like hacking things here and there (you included) and create scalable solutions that bring value to the world.

SquareDev? 🐿️

We use state-of-the-art technology to build solutions for our customers and our partners' customers. We make sure we stay best-in-class by participating in **research projects across Europe , collaborating with top universities and enterprises ****on ****AI, Data, and Cloud **.

About QnR Group

**SquareDev is a member of the ****QnR Group **, a leading technology organization specializing in end-to-end custom software solutions, Artificial Intelligence, Cybersecurity, SAP, ServiceNow and FinTech solutions.

As part of QnR Group's ongoing expansion — both in Greece and internationally — we are continuously hiring across a wide range of tech roles. Successful candidates may be hired by QnR Group, or another company within the Group, depending on the role and project.

Role overview

We are looking for a .NET Developer to develop and maintain secure applications. The role covers the full development cycle: from technical design and implementation to testing, deployment, and ongoing maintenance. You will work with a team of engineers, product owners, and QA on features that go directly into production.

Requirements

The ideal candidate will be responsible for:

• Designing, developing, and maintaining backend applications using .NET and C#.
• Translating product and business requirements into scalable technical solutions.
• Building secure and high-performing RESTful APIs.
• Collaborating with Product Owners, QA engineers, and cross-functional teams during all development stages.
• Writing clean, reusable, and testable code in line with coding standards and best practices.
• Participating in sprint planning, estimations, retrospectives, and other Agile/Scrum ceremonies.
• Supporting and enhancing CI/CD pipelines, deployment flows, and test automation processes.
• Contributing to technical design discussions and architecture improvements.
• Working alongside senior engineers on system design decisions and performance optimization initiatives.

To excel in this role, you'll need:

• 3+ years of professional experience in backend development with .NET and C#.
• Strong hands-on experience building and integrating RESTful APIs.
• Good understanding of SOLID principles, object-oriented programming, and common design patterns.
• Experience maintaining backend systems and services in production environments.
• Familiarity with Docker, Azure, or another cloud platform.
• Experience with CI/CD tools and modern software delivery practices.
• Previous involvement in Agile/Scrum teams and collaborative development environments.
• Strong analytical and problem-solving skills.
• Strong English communication skills.