Senior .NET Developer WPF/MAUI

Shift4 (NYSE: FOUR) is boldly redefining commerce by simplifying complex payments ecosystems across the world. As the leader in commerce-enabling technology, Shift4 powers billions of transactions annually for hundreds of thousands of businesses in virtually every industry. For more information, visit www.shift4.com.

What you will do. A glimpse into your role:

As a Senior .NET Developer is responsible for designing, developing, testing, deploying, and supporting .NET WPF/MAUI applications and .NET web services . This role contributes to delivering high-quality solutions that meet business requirements and align with technology standards. The position plays a key role in technical reviews, architecture improvements, and implementing best practices within an Agile team environment.

Every action has an impact. You will make a difference here if you:

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Design, develop, test, deploy, and support .NET WPF/MAUI applications and services.

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Participate in technical reviews and recommend improvements, upgrades, and architecture changes.

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Research and evaluate software technologies and products.

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Implement best practices, standards, and procedures for quality and delivery.

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Ensure compliance with documented software processes throughout the product lifecycle.

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Collaborate with peer developers, Development Leads, and Product Managers to define functionalities and implementations.

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Work within an Agile team setup (6–9 members) and actively contribute to improvement initiatives.

Key competencies to empower your journey. You’ll thrive in this role if you have:

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Strong analytical and problem-solving skills.

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Ability to work independently and in a team.

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Excellent communication skills in English.

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Excellent TEAM player.

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Excellent problem-solving skills.

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Enjoy working in a multi-cultural environment.

Skills

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Strong expertise in .NET Technologies: C#; .NET WPF; .NET Xamarin/MAUI; WCF Services; and Web API / REST, MVC

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Good understanding of concepts like authentication/authorization, client and server-side caching, multithreading, and performance optimization.

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HTML, JavaScript, Angular 12+ is a plus.

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Software Security Development principles.

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Strong understanding of OOP, design patterns, and enterprise architecture.

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Experience with TDD, unit and integration testing, and CI/CD pipelines.

Qualifications and education requirements

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Bachelor’s or Master's degree in Computer Science or related technical field.

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A senior-level software developer with strong and successful technical experience (7+ years of experience)

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Hands-on experience within agile software development methodologies in a multi-division processing company.

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Experience with Testing and CI; TDD, automated unit/functional/integration testing

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Strong understanding of Software Design Patterns and Enterprise Design Patterns, MS SQL Server skills or similar, especially in performance-related areas.

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Strong English language skills (oral and written)

Location:

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Be currently located in Hungary and legally authorized to work in Hungary .

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Be available to work in a hybrid model, attending our Vienna office two times per month.