Senior Test Engineer (Revenue & Financial Data Platform)

Sigma Software

14d•Remote

About The Position

Are you passionate about ensuring accuracy in complex financial systems where every calculation matters? We are looking for a Senior Manual QA Engineer with a strong analytical mindset to join a product focused on revenue operations and financial data validation. At Sigma Software, you will work alongside engineers and product stakeholders to ensure the correctness of revenue-related workflows, calculations, and business-critical functionality. This is a remote-friendly opportunity for specialists who enjoy investigative testing, deep analysis, and independent decision-making. You will have the opportunity to work on a high-impact financial platform, influence quality processes, and contribute to a collaborative engineering culture focused on precision and continuous improvement. The Customer develops a modern revenue platform designed for finance and accounting teams. The product operates with business-critical financial data where accuracy, consistency, and reliability are essential across all workflows and calculations. The project focuses on validating and improving a revenue management platform that handles complex business logic, financial formulas, and transactional data. The role requires investigative testing, deep validation of calculations, and close collaboration with engineering and product teams to identify discrepancies and ensure system correctness.

Requirements

5+ years of experience in Manual Quality Assurance
Solid experience with SQL for database validation
Experience testing REST APIs using Postman
Strong analytical and problem-solving skills
Experience validating complex business logic, calculations, or financial data
Ability to investigate issues beyond standard test execution
Understanding of expected versus incorrect system behavior
Excellent attention to detail and commitment to software quality
Strong communication skills and ability to work independently in a remote environment
Experience working in Agile Scrum teams
Upper-Intermediate level of English

Nice To Haves

Experience with test automation using Playwright
Experience with TypeScript
Familiarity with observability and monitoring tools such as PostHog, Sentry, and Datadog
Experience working with financial or accounting systems

Responsibilities

Perform comprehensive manual testing of new features, enhancements, and bug fixes
Validate revenue calculations, financial formulas, and data accuracy with high precision
Investigate discrepancies in financial data and determine root causes
Analyze application behavior, database records, and API responses
Execute full regression testing for production releases
Verify bug fixes and provide timely feedback to engineering teams
Collaborate closely with Product Managers and Software Engineers throughout the development lifecycle
Create and maintain detailed test cases, test scenarios, and defect reports
Work independently to drive quality throughout the sprint
Identify potential risks and contribute to QA process improvements
Support future test automation initiatives