C# Application Developer for POS & API Integrations

Stelvio Inc.; Plano (TX); On-site; USD 80,000 - 110,000; Full time

Job summary

Stelvio Inc. in Plano, Texas is seeking a mid-level C# Application Developer to join our growing technology business focused on high-volume POS, payment, and integration platforms used across locations.

You will build and maintain C#/.NET applications, develop REST API integrations, and help enhance real-time payment experiences. The team embraces AI-assisted development tools like GitHub Copilot, Cursor, and Claude Code to boost productivity.

Qualifications

• 3–5 years of software development experience.
• Proficient in C# and .NET / .NET Core.
• Experience building and consuming REST APIs.
• Hands-on use of AI-assisted coding tools.
• Git and Agile/Scrum experience.

Responsibilities

• Build and maintain C#/.NET applications.
• Develop third-party API integrations.
• Help improve real-time payment experiences.
• Collaborate with a team using AI-assisted development tools.

Skills

3–5 years of software development

C# & .NET / .NET Core

REST API development & consumption

AI-assisted coding tools

Git & Agile/Scrum

Tools

GitHub Copilot

Cursor

Claude Code

Job description

Stelvio Inc. in Plano, Texas is seeking a mid-level C# Application Developer to join our growing technology business focused on high-volume POS, payment, and integration platforms used across locations.

You will build and maintain C#/.NET applications, develop REST API integrations, and help enhance real-time payment experiences. The team embraces AI-assisted development tools like GitHub Copilot, Cursor, and Claude Code to boost productivity.