Application Developer

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

C# Application Developer - POS & Integrations

We’re partnering with an established and growing restaurant technology company in Plano that is looking for a mid-level C# Application Developer to join its POS & Integrations engineering team.

This is a hands-on development role working on technology deployed across thousands of restaurant locations nationwide, with a particular focus on POS applications, payment processing, third-party integrations, and APIs.

The team is also actively adopting AI-assisted development tools, so they’re looking for someone comfortable using modern AI tooling to improve development, debugging, and engineering efficiency.

What You'll Be Doing

• 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 tools such as GitHub Copilot, Cursor, Claude Code, or similar AI development tools within your engineering workflow.


• Work closely with QA, Product, and Infrastructure teams.


• Participate in Agile/Scrum ceremonies, sprint planning, and code reviews.


• Contribute to improving development, debugging, and integration processes through automation.

What We're Looking For

• 3-5 years of professional software development experience.


• Experience building and consuming REST APIs.


• Experience working with third-party integrations.


• Strong debugging and problem-solving skills.


• Experience using Git and working within an Agile development environment.


• Practical experience using AI-assisted coding/development tools.


• Ability to work on-site in Plano, Texas.

A Computer Science, Software Engineering, or related degree is preferred, although equivalent practical experience will also be considered.

Particularly Relevant Experience

Candidates with exposure to any of the following will stand out:

• Restaurant or hospitality technology


• Loyalty platform integrations


• High-volume transactional applications


• Embedded or device-side software


• CI/CD and automated testing

Why Consider It?

This is a strong opportunity for a C# developer who wants to work on real-world, high-volume technology rather than purely internal applications.

You’ll be developing software that directly supports restaurant transactions and payment experiences across thousands of physical locations, while joining a team that is actively investing in modern engineering and AI-assisted development practices.

The position is full-time and on-site in Plano, TX.