.NET Developer (Mid/Senior)

Quality and Reliability (QnR) is a leading Technology Group, with more than 30 years of presence in the market, delivering mission-critical digital transformation across Greece, Europe, and the broader EMEA region. QnR is an Athens Stock Exchange-listed technology Group currently undergoing a period of significant growth and transformation, having completed five acquisitions within the last 18 months.

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