C# POS & API Engineer — On-Site Plano

Stelvio Inc.; Plano (TX); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

On-site parking

Job summary

Stelvio Inc. in Plano, TX is seeking a mid-level C# Application Developer to join the POS & Integrations team.

You will develop and maintain C# applications, build integrations for POS platforms, and work on real-time payment processing and APIs, using AI-assisted tools to enhance efficiency. The role emphasizes hands-on development across thousands of restaurant locations nationwide, with collaboration across QA, Product, and Infrastructure teams and active Agile practices.

Qualifications

• 3–5 years of professional software development experience.
• Experience building and consuming REST APIs.
• Experience with third-party integrations.
• Strong debugging and problem-solving skills; proficient in Git.
• Experience with AI-assisted coding/development tools; on-site Plano TX.

Responsibilities

• Develop and maintain applications using C# and .NET/.NET Core.
• Build integrations between POS platforms and third-party systems.
• Develop and consume RESTful APIs.
• Work on software supporting real-time payment processing and transaction workflows.
• Integrate with payment processors, loyalty platforms, and restaurant management systems.
• Troubleshoot application, API, and integration issues.
• Use AI tools within engineering workflow.
• Work with QA, Product, and Infrastructure teams.
• Participate in Agile/Scrum ceremonies and code reviews.
• Contribute to automations to improve development and integration processes.

Skills

REST APIs

Third-party integrations

Debugging

Git

Agile/Scrum

AI-assisted coding

Education

B.S. in Computer Science or related field

Tools

GitHub Copilot

Cursor

Claude Code

Job description

Stelvio Inc. in Plano, TX is seeking a mid-level C# Application Developer to join the POS & Integrations team.

You will develop and maintain C# applications, build integrations for POS platforms, and work on real-time payment processing and APIs, using AI-assisted tools to enhance efficiency. The role emphasizes hands-on development across thousands of restaurant locations nationwide, with collaboration across QA, Product, and Infrastructure teams and active Agile practices.