[Hiring] Senior QA Automation @Salmon Group

Role Description

You'll own manual and exploratory quality coverage for card and payment backend systems — validating transaction flows, back-office processes, and integrations across a REST-based microservice architecture.

What you'll do

• Work on backend services supporting card operations and payment flows: authorizations, captures, reversals, refunds, and chargebacks.
• Validate transaction data across REST APIs, PostgreSQL, and Kafka — including event contracts, stored data, and operational workflows.
• Collaborate with developers, analysts, and product managers to investigate defects and improve test coverage as the platform scales.

What you'll own

• Test backend services and validate end-to-end transaction flows, including authorization, hold, capture, reversal, and refund scenarios.
• Verify back-office processes: 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, document findings, and drive resolution with engineering and product teams.
• Collect and track QA metrics to improve testing effectiveness and product quality.
• Contribute to API-level automation of transaction flow testing as coverage expands.

Qualifications

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