Remote QA Automation Engineer (Kotlin) – Core Banking APIs

Salmon Group; Athens (GA); Remote; USD 85,000 - 125,000; Full time

Benefits offered by this job

Stock options

Fully remote

Tools & equipment

Medical insurance

Vacation & holidays

Beach house week

Job summary

Salmon Group is seeking a QA Automation Engineer to strengthen testing across our core banking systems, including tariffs, deposits, and B2B payments. You will design and execute manual and automated tests for APIs, databases, and backend services, extending our Kotlin-based framework and validating data and business rules.

With 3+ years of backend/API QA experience, you’ll collaborate with developers, product, and DevOps to improve test coverage.

Qualifications

• 3+ years of experience in QA automation on backend/API-focused systems.
• Strong hands-on experience with manual API and backend testing.
• Experience with integration, regression, and end-to-end testing of backend systems.
• Experience writing and running SQL queries for data validation.
• Ability to work with Kotlin and contribute to existing automated test suites.
• Experience testing financial systems, payment systems, or other transactional products.
• Experience with core banking, deposits, tariffs, fees, billing, payments, or lending products.

Responsibilities

• Test core banking systems spanning tariffs, deposits, B2B payments, and other backend financial flows.
• Run manual and automated testing across APIs, databases, backend services, and integrations.
• Extend our existing Kotlin-based automation framework, adding new tests by following established patterns.
• Design, maintain, and execute test cases for new functionality and regression scenarios across core banking systems.
• Validate APIs, backend integrations, business rules, calculations, transaction flows, and data consistency.
• Analyze logs, database records, and system behavior to identify, reproduce, and document defects.
• Build and maintain API automated tests using the existing Kotlin-based framework.
• Partner with developers, analysts, product, and DevOps to investigate defects and improve test coverage.
• Contribute to test documentation, regression coverage, and quality processes as the product scope grows.

Skills

QA automation

Backend testing

API testing

SQL queries

Kotlin

Tools

Kotlin

Java

SQL

Job description

Salmon Group is seeking a QA Automation Engineer to strengthen testing across our core banking systems, including tariffs, deposits, and B2B payments. You will design and execute manual and automated tests for APIs, databases, and backend services, extending our Kotlin-based framework and validating data and business rules.

With 3+ years of backend/API QA experience, you’ll collaborate with developers, product, and DevOps to improve test coverage.