Senior QA Engineer – API Testing

We are a global technology consulting company specializing in IT solutions, cloud-based platforms, mobile and web applications, and training and support services. With over 14 years of experience and a multicultural team of more than 100 professionals, we deliver projects for complex industries such as pharmaceuticals, diagnostics, healthcare, and consumer goods.

At our company, we value international talent, diversity, flexibility, and a collaborative environment that fosters professional growth and personal well-being.

Nuvolar is looking for a Senior QA Engineer to join a healthcare project, working on digital health solutions that support complex workflows and critical software platforms. You will be part of a technical team responsible for ensuring the quality of a platform that manages sensitive healthcare information, integrations, and services within a complex digital health ecosystem. This role is a great opportunity for a QA Engineer who enjoys understanding complex products, defining quality strategies, designing meaningful test scenarios, and collaborating closely with developers and product teams to deliver reliable software.

As the first QA Engineer joining this product team, you will shape how quality is built into the product from the early stages. Rather than joining an established QA function within the team, you will define testing strategies, introduce best practices, and help embed quality throughout the development lifecycle while working closely with developers and product stakeholders.

• Define and execute the QA strategy for backend services, APIs, integrations, and key product workflows.
• Understand the product domain and translate business requirements into effective test scenarios.
• Design, maintain, and execute test plans covering functional testing, regression testing, integration testing, exploratory testing, and edge cases.
• Perform backend and API testing using tools such as Postman and OpenAPI/Swagger specifications.
• Validate REST APIs, data consistency, error handling, authentication flows, and integration scenarios.
• Work with relational databases such as PostgreSQL to validate data integrity and support testing activities.
• Contribute to test automation initiatives by maintaining and improving automated test suites.
• Analyse logs, traces, and system behaviour using monitoring and observability tools.
• Collaborate closely with developers, Product Owners, and technical stakeholders to identify risks early and ensure release readiness.
• Drive continuous improvement of QA practices and help establish quality standards within the team.

• Proven experience as a QA Engineer working on software products, backend services, REST APIs, or integration-heavy platforms.
• Strong experience with API testing using Postman, Swagger/OpenAPI, or similar tools.
• Experience creating, maintaining, or improving automated test suites.
• Solid understanding of QA methodologies, test design techniques, regression testing, exploratory testing, integration testing, and defect management.
• Experience working with relational databases and SQL to validate data integrity and application behaviour.
• Knowledge of cloud environments, ideally AWS, with a practical understanding of services such as DynamoDB, SQS/SNS, and Secrets Manager.
• Experience working with Git Hub and CI/CD workflows, ideally Git Hub Actions.
• AI literacy, including familiarity with AI-assisted tools, AI agents, or the practical use of AI to improve testing, automation, and documentation.
• Ability to understand complex technical environments, identify quality risks, and work collaboratively with developers and product teams.
• Experience working in Agile/Scrum environments.
• Professional level of English, both written and spoken.

• Experience working in healthcare, digital health, medical software, or other regulated environments.
• Previous experience with patient data, identity management, or clinical workflows.
• Knowledge of Spring Boot, Java, Maven, or Java backend ecosystems.
• Experience with Playwright.
• Experience replacing or modernising existing automation frameworks.
• Experience with contract testing,…