QA Engineer (Payments)

Location: Remote, Metro Manila, Philippines

Company

Salmon is a technology-driven financial company building a banking and lending platform across Southeast Asia, starting in the Philippines.

What you will do

• Test backend services supporting card operations and payment flows, including authorizations, holds, captures, reversals, refunds, and chargebacks.
• Validate transaction data across REST APIs, PostgreSQL, and Kafka, including event contracts, stored data, and operational workflows.
• Verify back-office processes such as reconciliation, corrections, and operational workflows.
• Execute regression testing during releases, infrastructure changes, and platform migrations.
• Create and maintain test cases, checklists, and test documentation.
• Analyze defects, track QA metrics, drive resolution with engineering and product teams, and contribute to API-level automation.

Requirements

• Experience testing backend systems and REST APIs.
• Confident use of Postman or similar API testing tools.
• Experience with PostgreSQL, including writing queries and validating stored data.
• Experience with Kafka, including event validation, topic analysis, and contract verification.
• Understanding of card processing and payment flows: authorization, hold, capture, reversal, and chargeback.
• Ability to read code in Java, Kotlin, JavaScript, or similar languages.
• Strong understanding of software testing principles, defect investigation, and test design techniques.

Culture & Benefits

• Remote full-time role based in Metro Manila.
• Opportunity to work on a banking and lending platform serving Southeast Asia.
• Direct collaboration with developers, analysts, and product managers.
• Ownership from day one, high standards, and direct communication.
• Work on financial products used by millions of monthly active users.