.NET Developer (Mid/Senior)

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.NET Developer | Quality & Reliability (QnR), the parent company of QnR Group

Role overview

We are looking for a .NET Developer to join Quality & Reliability (QnR) and design, develop and maintain secure applications. The role covers the full software development lifecycle, from technical design and implementation to testing, deployment and ongoing maintenance. You will work closely with engineers, Product Owners and QA teams on features that are delivered directly into production.

About QnR Group

QnR Group is a technology group with 35 years of experience, 8 companies, 4 delivery centers and 210+ professionals across Greece, Belgium, Cyprus and Poland. Listed on the Athens Stock Exchange since 2000, we deliver mission-critical digital transformation projects for the public and private sector. The Group’s capabilities covers software engineering, enterprise and generative AI, cybersecurity, cloud infrastructure, SAP and ServiceNow solutions, core banking and maritime intelligence.

Requirements

What you'll work on:

• 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

What you bring:

• 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