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ResultStackRE

Senior Software Engineer – POS Modernization

ResultStack specializes in custom software and application development, focusing on ROI-driven solutions and enhancing user satisfaction across various industries.

ResultStack

Employee count: 11-50

United States only

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📍 Remote (U.S. Only) | Full-Time | Immediate Start

We’re looking for a Senior Software Engineer to help modernize and support legacy point-of-sale (POS) and fuel system software for a major retail technology platform. This is a high-impact role focused on real-world systems that drive in-store transactions and fuel operations at scale.

You’ll work primarily in C++, C#, and .NET environments, supporting and extending core business-critical platforms. This is not a web development role — it’s ideal for engineers who enjoy deep systems work, modernizing legacy infrastructure, and solving problems in complex, high-volume environments.

🛠 What You’ll Do

  • Modernize and support store-level POS and fuel control systems

  • Translate legacy software into modular, maintainable code

  • Troubleshoot production issues across hardware/software integrations

  • Collaborate with engineers and product managers to scope modernization efforts

  • Participate in code reviews, platform documentation, and refactoring legacy components

  • Support system reliability and performance in high-transaction retail environments

🧠 What You Bring

  • 5+ years of professional software engineering experience

  • Strong hands-on experience with C++ and/or C# (.NET)

  • Experience working on or modernizing legacy enterprise systems, ideally in retail, fuel, or POS industries

  • Familiarity with hardware integration (e.g., payment terminals, barcode scanners, fuel pumps)

  • Self-starter mindset with the ability to take ownership of legacy-to-modernization projects

  • Bonus: Experience with NCR platforms (Radiant, R10, StorePoint), Gilbarco, Verifone, or similar systems

🧰 Tools & Environment

  • Languages: C++, C#, .NET

  • Version Control: GitHub

  • Infrastructure: Docker, Windows-based systems

  • (Optional bonus stack: React, Node.js, AWS — exposure helpful but not required)

💡 Why Join Us?

This is a unique opportunity to work on the software backbone of retail and fuel operations — where reliability, speed, and modernization have real-world impact. You’ll be joining a small, experienced engineering team with full ownership of critical systems used nationwide.

If you enjoy solving problems, diving into complex software environments, and bringing older platforms into the future — we’d love to hear from you.

About the job

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Job type

Full Time

Experience level

Senior

Location requirements

Hiring timezones

United States +/- 0 hours

About ResultStack

Learn more about ResultStack and their company culture.

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ResultStack is dedicated to creating business value through custom software solutions tailored to meet the demands and expectations of a diverse clientele. Our primary focus lies in delivering software that not only meets functional requirements but also drives significant ROI and creates positive user experiences. As passionate engineers and designers, we work together to build innovative digital systems that solve complex challenges for brands we trust and admire.

Whether working on consumer-grade applications or comprehensive enterprise software solutions, ResultStack excels in deploying agile methodologies that allow for rapid iterations and quick adjustments in project scope. Our approach emphasizes close collaboration with clients, where understanding their goals and responding to their unique needs becomes paramount. By leveraging cutting-edge technologies, we effectively navigate the complexities of software development—from initial concept discussions through to final deployment—and commit to maintaining and supporting our solutions for the long haul. With a growing portfolio that includes high-profile clients, ResultStack continues to innovate and implement strategies that foster business growth and operational excellence.

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ResultStack

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