Manual QA Engineer - Retail POS Tax Validation

Capgemini • Bellevue, WA

6d • Onsite

About The Position

We are seeking a detail-oriented Manual QA Engineer with strong experience testing retail Point-of-Sale (POS) systems and validating U.S. sales tax calculations across multiple jurisdictions. This role is responsible for ensuring the accuracy of tax-related business rules, transaction processing, and end-to-end retail workflows, including sales, returns, promotions, and payment processing. The ideal candidate will possess a strong understanding of retail operations, tax compliance requirements, and manual testing best practices in a fast-paced Agile environment.

Requirements

• 4+ years of hands-on Manual QA experience with strong expertise in retail POS application testing.
• Proven experience validating U.S. sales tax calculations, tax compliance requirements, and jurisdiction-specific tax rules.
• Strong understanding of tax exemptions, tax holidays, tax-inclusive and tax-exclusive pricing models, and tax rounding methodologies.
• Experience testing retail transaction workflows including sales, returns, exchanges, refunds, voids, promotions, discounts, and gift card processing.
• Familiarity with third-party tax engines such as Vertex, Avalara, or similar tax calculation solutions.
• Working knowledge of payment processing and tender types, including credit cards, mobile wallets, stored value cards, and gift cards.
• Experience working in Agile/Scrum environments with proficiency in defect management tools.

Nice To Haves

• Knowledge of SQL, API testing, and Postman is highly preferred.

Responsibilities

• Design, execute, and maintain comprehensive manual test cases and test scenarios for POS tax calculation and transaction processing functionality.
• Validate U.S. sales tax calculations across state, county, city, district, and special tax jurisdictions to ensure regulatory compliance.
• Test tax-related business scenarios involving merchandise, food and beverage items, gift cards, discounts, promotions, loyalty rewards, and digital transactions.
• Verify tax behavior and calculations for sales, refunds, exchanges, returns, voids, reversals, and post-void transactions.
• Perform end-to-end testing across POS, payment processing, back-office systems, tax engines, and reporting platforms.
• Investigate, document, and track defects, tax discrepancies, and edge-case scenarios using Jira, Azure DevOps, or similar tools.
• Collaborate with Product Owners, Business Analysts, Developers, and Tax Compliance teams to support requirements validation, defect resolution, regression testing, and release readiness.

Benefits

• Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade
• Company paid holidays
• Personal Days
• Sick Leave
• Medical, dental, and vision coverage
• Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
• Life and disability insurance
• Employee assistance programs
• Other benefits as provided by local policy and eligibility

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed