Senior Software Engineer

Description

Job Summary:

We are seeking a skilled and motivated Software Developer with a strong background in Microsoft technologies, particularly .NET and C#, to join our dynamic development team. The ideal candidate will have hands-on experience building and maintaining high-quality desktop applications using technologies such as WPF, Windows Forms, and Windows Services. You will play a key role in designing, implementing, and supporting software solutions that meet business and technical requirements, with an emphasis on performance, scalability, and reliability.

Global Payments Internal Background: The Global Payments Deployed Apps team currently supports the following applications and services:

• XCharge: Windows desktop middleware payment processing application supporting integrations from a large number of partner applications. The application supports a full UI, credit, debit, EBT, check, and gift transaction types, and reporting. XCharge is written in C# and C++, with new features written in C#.
• RCM/EdgeExpress: Windows desktop service supporting integrations from a large number of partner desktop and web applications facilitating EMV transaction processing using Ingenico payment terminals. RCM is written in C#.
• EasyUpdater: Software updating service for pushing software updates to merchants. Written in C# with backend AWS services.
• Mobile iOS/Android SDKs: Mobile SDK libraries providing EMV transaction processing to partner mobile applications.
  

Key Responsibilities:

• Design, develop, and maintain software products, modules, and features using .NET C# (WPF, Windows Forms, Windows Services, etc.).
• Collaborate with cross-functional teams on agile projects to deliver high-quality software solutions.
• Develop and maintain unit tests to ensure code quality and robustness.
• Develop and maintain automated test cases.
• Support and enhance existing InstallShield-based installation packages.
• Apply object-oriented design principles to create professional-grade software.
• Troubleshoot, debug, and resolve software issues in a timely manner.
• Document software components, processes, and installation guides with clear and concise technical writing.
• Participate in code reviews and provide constructive feedback to peers.
• Integrate applications with internal systems and enterprise services.
• Use tools such as Jira, Bitbucket/GitHub, and Bamboo for task management, version control, and CI/CD pipelines.
  

Qualifications:

Required:

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent work experience.
• Professional software development experience using C# and .NET Framework.
• Strong experience with Visual Studio and Microsoft Windows development.
• Proficiency in Windows Desktop Application development (WPF, WinForms).
• Good problem-solving, research, and analytical skills.
• Solid understanding of object-oriented programming and design patterns.
• Experience working in agile/Scrum environments.
• Familiarity with unit testing frameworks and test-driven development (TDD).
• Excellent verbal and written communication skills, including basic technical documentation.
  

Preferred:

• Experience with C++ in a Windows environment.
• Basic experience with Java and Swift mobile development
• Background in the payment industry.
• Experience using Atlassian tools (Jira, Bitbucket), Bamboo CI/CD, or GitHub.
• Experience creating and maintaining InstallShield installation packages.
• Integration experience with service-oriented applications or enterprise systems.
• Knowledge of secure coding practices and industry standards, with a focus on protecting sensitive data and preventing common vulnerabilities (e.g., OWASP Top 10, PCI, etc.)