QA Engineer: Functional & API Testing Specialist

GBL Tech; Lisboa; On-site; EUR 42,000 - 56,000; Full time

Job summary

GBL Tech is seeking a mid-level QA Engineer to join a collaborative software development environment focused on delivering high-quality solutions. You will contribute to functional and API testing, ensuring applications behave as expected from both business and technical perspectives.

Ideal candidates have 4–5 years of QA experience, strong API testing and a proven ability to translate requirements into comprehensive test cases within Agile teams.

Qualifications

• 4–5 years of professional QA experience.
• Hands-on API testing experience with understanding of HTTP methods, status codes and data validation.
• Strong functional, regression, integration and end‑to‑end testing capabilities.
• Ability to translate business requirements into test scenarios and acceptance criteria.
• Analytical, detail oriented with structured defect investigation.
• Experience working in Agile/Scrum teams.

Responsibilities

• Design and execute functional test scenarios for application features and user journeys.
• Perform hands-on API testing across services, validating requests and responses.
• Translate requirements into clear test cases, scenarios and acceptance criteria.
• Identify, document and track defects, collaborating with development to validate fixes.
• Execute regression and integration tests to ensure new changes don’t impact existing functionality.
• Collaborate with Developers, Product Owners and stakeholders to promote quality mindset.

Skills

QA Experience

API Testing

Functional Testing

Requirements Analysis

Problem Solving

Agile Environment

Job description

GBL Tech is seeking a mid-level QA Engineer to join a collaborative software development environment focused on delivering high-quality solutions. You will contribute to functional and API testing, ensuring applications behave as expected from both business and technical perspectives.

Ideal candidates have 4–5 years of QA experience, strong API testing and a proven ability to translate requirements into comprehensive test cases within Agile teams.