.NET Developer (Mid/Senior)

Quality & Reliability S.A. (QnR); Kentucky; On-site; USD 90,000 - 110,000; Full time

Job summary

Quality and Reliability (QnR) is seeking a .NET Developer to design, develop, and maintain secure applications across the full cycle. You will work with engineers, product owners, and QA to ship features to production, applying best practices and modern tooling.

The ideal candidate has 3+ years in backend development with .NET/C#, builds RESTful APIs, and participates in Agile/Scrum ceremonies. Docker and Azure experience and strong English communication are valued.

Qualifications

• Experience designing and maintaining backend apps with .NET/C#.
• Experience building secure RESTful APIs and cloud integration.
• Familiar with SOLID, OOP, and common design patterns.
• Experience with Agile/Scrum and CI/CD.

Responsibilities

• Design, develop, and maintain backend applications using .NET and C#.
• Translate requirements into scalable technical solutions.
• Build secure, high-performing RESTful APIs.
• Collaborate with Product Owners, QA, and cross-functional teams.
• Write clean, reusable, testable code following standards.
• Participate in sprint planning, estimations, retrospectives, and Agile ceremonies.
• Support and enhance CI/CD pipelines and deployment flows.
• Contribute to design discussions and architecture improvements.
• Work with senior engineers on system design decisions and performance optimization.

Skills

.NET/C# backend development

RESTful APIs

SOLID/OOP principles

Agile/Scrum practices

Problem solving

English communication

Tools

Docker

Azure

CI/CD tools

Job description

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.

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