Salmon is a technology-driven financial company building a banking and lending platform across Southeast Asia, starting in the Philippines.
7M+ app downloads. 2M+ monthly active users. 7000+ partner stores. US$350M+ raised from top-tier investors.
Here, you get real ownership from day one, high standards, and direct communication. You'll work alongside a team that combines deep local knowledge and experience scaling regulated financial companies from scratch.
If you want to solve complex problems at scale and directly impact how millions of people access and manage money, come build with us.
Southeast Asia's fintech moment starts here.
About the role
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.
What makes you a strong fit
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.