POS & Payments QA Engineer & Tech Writer

United Merchant Services, Inc.; Hackensack (NJ); On-site; USD 70,000 - 95,000; Full time

Job summary

Bluu, Inc. in Hackensack, NJ is seeking a QA & Technical Documentation Specialist to ensure the quality and reliability of our POS systems while maintaining accurate User and Technical Documentation.

This role combines Software QA, Payment QA, Hardware/Device Testing, API & Integration Testing, and Technical Documentation. The ideal candidate can identify product issues, validate new features, and translate complex technical functionality into clear documentation.

Qualifications

• Experience in Software QA / Software Testing.
• Experience with POS, Restaurant, Retail, or Payment Systems.
• Experience testing Windows and/or Android applications.
• Experience creating test cases and technical documentation.
• Basic knowledge of SQL and API testing.

Responsibilities

• Perform functional, regression, integration, and release testing for POS systems.
• Test Windows/Android applications, payment systems, hardware, APIs, and third-party integrations.
• Test payment transactions, including EMV, NFC/contactless, refunds, reversals, and settlement.
• Create and maintain test cases, test scenarios, and regression test suites.
• Identify, document, and verify software defects and production issues.
• Create and maintain User Manuals, Technical Manuals, Installation/Configuration Guides, Troubleshooting Guides, FAQs, and Release Notes.
• Ensure documentation is updated with new features, UI changes, hardware configurations, and software releases.
• Collaborate with Development, Product, Support, and Implementation teams to improve product quality and documentation.

Skills

Bilingual Korean/English

Software QA / Testing

POS / Payment Systems

Windows / Android testing

Test cases creation

Technical documentation

SQL

API testing

Job description

Bluu, Inc. in Hackensack, NJ is seeking a QA & Technical Documentation Specialist to ensure the quality and reliability of our POS systems while maintaining accurate User and Technical Documentation.

This role combines Software QA, Payment QA, Hardware/Device Testing, API & Integration Testing, and Technical Documentation. The ideal candidate can identify product issues, validate new features, and translate complex technical functionality into clear documentation.