Fintech QA Engineer: Payments & API Reliability

NevkaSystems; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

NevkaSystems is seeking a QA engineer to safeguard the reliability of financial product experiences across web, mobile, and API journeys. You will test customer journeys and transaction systems, investigate failures, and collaborate with engineering to bake quality into delivery.

Your role includes exploratory and regression testing, testing payment flows, and building automated API checks, with a focus on data accuracy and robust audits across platforms.

Qualifications

• Practical QA experience in fintech, payments, or transaction-heavy software.
• Experience testing REST APIs and interpreting requests, responses, and logs.
• Hands-on automation experience with a tool such as Playwright, Cypress, Selenium, or Appium.
• Working knowledge of SQL, Git, and CI/CD processes.
• Understanding of asynchronous processing, idempotency, and financial data accuracy.
• Clear written communication and ability to explain defect impact.

Responsibilities

• Plan and perform exploratory, functional, and regression testing across web, mobile, and API journeys.
• Test payment flows, balances, fees, currency precision, refunds, and reconciliation in success and failure scenarios.
• Probe edge cases such as repeated requests, delayed notifications, timeouts, retries, and interrupted transfers.
• Build and maintain automated API and end-to-end checks with repeatable environments and reliable test data.
• Work with engineers to verify access controls, sensitive-data handling, and audit records.
• Document defects with evidence, support reproduction, and confirm fixes before release.

Skills

Fintech QA experience

REST API testing

Automation testing

SQL

Git

CI/CD testing

Technical defect analysis

Tools

Playwright

Cypress

Selenium

Appium

Job description

NevkaSystems is seeking a QA engineer to safeguard the reliability of financial product experiences across web, mobile, and API journeys. You will test customer journeys and transaction systems, investigate failures, and collaborate with engineering to bake quality into delivery.

Your role includes exploratory and regression testing, testing payment flows, and building automated API checks, with a focus on data accuracy and robust audits across platforms.