C# Application Developer — POS & Integrations (on-site)

Ziosk; Plano (TX); On-site; USD 80,000 - 100,000; Full time

Job summary

Ziosk, based in Plano, is seeking a mid-level C# Application Developer to enhance our POS and integrations team. In this role, you will develop and maintain applications that power real-time payment processing across numerous restaurant locations.

The ideal candidate will have 3–5 years of experience in software development, proficiency in C#, and familiarity with RESTful APIs. This position requires attention to detail and the ability to thrive in a fast-paced environment.

Join us to make a significant impact by leveraging AI tools and developing top-notch solutions!

Qualifications

• 3–5 years of professional software development experience.
• Proficiency in C# application development (.NET framework or .NET Core).
• Hands-on experience using AI-assisted development tools.

Responsibilities

• Develop and maintain C# applications for Ziosk’s POS and payments platforms.
• Build and integrate with third-party APIs for payment processing.
• Participate in Agile/Scrum ceremonies and sprint planning.

Skills

C# application development

RESTful API development

AI-assisted development tools

Agile/Scrum processes

Attention to detail

Education

Bachelor’s degree in Software Engineering or Computer Science

Tools

Git

CI/CD pipelines

Job description

C# Application Developer — POS & Integrations (on-site) - Plano

Welcome to Ziosk, where we empower restaurants to focus on what matters most: the guest experience! Have you ever used a tablet to pay at a restaurant? We pioneered the pay-at-the-table concept and we’re cooking up a plan to transform the restaurant industry. Our recipe for success has been adapting and growing to exceed the needs of our clients, such as Olive Garden, Texas Roadhouse, Chili’s and more – helping them create an experience that keeps guests coming back. Today we have a full menu of solutions, from hardware to software to cloud-based and AI-driven products, all focused on helping them create the best guest experience possible to grow their bottom line. Our secret sauce? Our people! Every day, they’re cooking up bold solutions, making Ziosk the leading pay-at-the-table provider in the industry.

Want a seat at our table? Ziosk is looking for a mid-level C# Application Developer to join our POS & Integrations team. You will build and maintain the software powering real-time payment processing, third-party integrations, and the core POS experience across thousands of restaurant locations nationwide. In this role, you will also leverage AI-assisted development tooling to accelerate coding, debugging, and integration work — helping the team ship faster and more reliably. The successful candidate is self-motivated with strong attention to detail and the ability to manage priorities in a fast-paced, deadline-driven environment.

Key Responsibilities

• Develop and maintain C# applications powering Ziosk’s POS, payments, and loyalty platforms.
• Build and integrate with third-party APIs including payment processors, loyalty providers, and restaurant management systems.
• Contribute to core POS interface development, ensuring a seamless payment experience for millions of restaurant guests.
• Use AI-assisted development tools (e.g., Cursor, Claude-Code, LLM-based code assist) as part of daily engineering workflow to accelerate development and reduce repetitive coding tasks.
• Identify recurring integration patterns and contribute to AI-assisted automation to reduce manual debugging and integration effort.
• Participate in Agile/Scrum ceremonies, sprint planning, and peer code reviews.
• Collaborate with cross-functional teams including QA, product, and infrastructure to deliver reliable, scalable software.
• Share knowledge of application development best practices and AI tooling usage across the engineering team.

Required Skills & Qualifications

• 3–5 years of professional software development experience.
• Proficiency in C# application development (.NET framework or .NET Core).
• Experience building and consuming RESTful APIs.
• Hands-on experience using AI-assisted development tools (e.g., GitHub Copilot, LLM-based workflows) as part of day-to-day engineering work.
• Familiarity with Agile/Scrum development processes and version control (Git).
• Strong attention to detail and ability to manage priorities in a fast-paced, deadline-driven environment.
• Bachelor’s degree in Software Engineering, Computer Science, or equivalent practical experience.

Nice to Have

• Experience with Point of Sale (POS) systems, payment processing, or loyalty platform integrations.
• Familiarity with EMV payments and payment processing workflows.
• Practical experience building or contributing to AI-driven automation workflows, such as log analysis or task automation.
• Exposure to embedded or device-side software development.
• Experience working with restaurant technology or hospitality industry systems.
• Knowledge of CI/CD pipelines and automated testing practices.

Ziosk is an Equal Opportunity employer offering competitive benefits and compensation. Candidates must be eligible to work in the U.S. and be able to commute daily to Plano, TX. No agencies or third-party recruiters, please.