Senior QA Automation Engineer – API & Microservices (Remote)

Qualysoft GmbH; United States; Remote; USD 110,000 - 150,000; Full time

Benefits offered by this job

Premium medical package

Lunch Tickets & Pluxee Card

Bookster subscription

13th salary/yearly bonuses

Flexible working program

Job summary

Qualysoft GmbH is seeking a Senior QA Automation Engineer with a strong background in API testing and test automation to join the Loan Processor team. You will design and implement scalable test automation for complex lending workflows, integrations, and microservices supporting loan origination and processing lifecycles.

You will lead API validation, contract testing, and CI/CD integration, collaborating with developers, product owners, and QA peers in an Agile environment.

Qualifications

• 5+ years of QA Automation experience.
• 3+ years of API test automation experience.
• Experience testing enterprise applications with multiple integrations.
• Experience working in Agile/Scrum environments.
• Strong knowledge of REST APIs, JSON, HTTP/HTTPS.
• Authentication mechanisms (OAuth2, JWT, Basic Auth).
• Swagger/OpenAPI.
• Experience with API automation tools such as RestAssured, Postman/Insomnia.

Responsibilities

• Design, develop, and maintain automated test frameworks for API and backend services.
• Develop reliable automated tests covering functional, integration, regression, and end-to-end scenarios.
• Review and improve existing automation suites for maintainability and efficiency.
• Define automation standards, best practices, and coding guidelines.
• Validate RESTful APIs, event-driven integrations, and microservices.
• Perform contract and integration testing across multiple systems.
• Analyze API payloads, logs, and system interactions to identify defects.
• Participate in requirements and design reviews to identify risks early.
• Define test strategies and coverage for new features.
• Ensure adequate test coverage for critical loan processing flows.

Skills

QA Automation

API test automation

Agile/Scrum

C#

REST APIs

OAuth2/JWT

Tools

RestAssured

Postman

Insomnia

Swagger/OpenAPI

TestNG/JUnit/NUnit/xUnit

Jenkins

GitHub Actions

Git

Kafka

RabbitMQ

Job description

Qualysoft GmbH is seeking a Senior QA Automation Engineer with a strong background in API testing and test automation to join the Loan Processor team. You will design and implement scalable test automation for complex lending workflows, integrations, and microservices supporting loan origination and processing lifecycles.

You will lead API validation, contract testing, and CI/CD integration, collaborating with developers, product owners, and QA peers in an Agile environment.