QA Engineer – Hybrid Madrid: End-to-End & API Testing

UST; Madrid; Hybrid; EUR 40,000 - 55,000; Full time

Benefits offered by this job

Annual Leave (23 days)

Health Care Plan

Flexible Compensation Program

Training Platforms Access

Career Stability and Plans

Referral Compensation

Work-Life Balance Measures

Discounts on Gym Access

Job summary

UST, a leader in digital technology services, is seeking a QA Engineer to ensure end-to-end software quality across the delivery lifecycle in a hybrid setup based in Madrid. Applicants should possess strong skills in test case design and experience in Agile environments, particularly with functional and REST API testing. The position offers significant annual leave, flexible compensation programs, and a commitment to work-life balance, making UST a great place to further your career in a supportive environment.

Qualifications

• Proven experience as a QA Engineer in Agile delivery teams.
• Strong test case design (TCD) skills.
• Experience with functional, regression, and end-to-end testing.
• Experience validating REST APIs and understanding request/response flows.
• Understanding of end-to-end application flows and distributed systems.
• Experience with defect management and test management tools.
• High attention to detail and strong analytical mindset.
• Clear communication skills with both technical and non-technical stakeholders.
• Ownership of quality and accountability for delivered outcomes.
• Experience working in regulated, audit-sensitive environments.
• Fluency in English.

Responsibilities

• Ensure end-to-end software quality across the full delivery lifecycle.
• Design, execute, and maintain test cases covering functional, regression, and end-to-end scenarios.
• Perform manual and exploratory testing to validate business and technical requirements.
• Validate system integrations, including REST API testing.
• Identify, document, and track defects, ensuring proper follow-up and resolution.
• Collaborate closely with developers, Product Owners, and other stakeholders.
• Participate in backlog refinement and early validation of requirements to ensure testability.
• Execute and document tests in an audit-proof manner.
• Contribute to continuous improvement of QA practices.

Skills

QA Engineering

Agile Delivery

Test Case Design

REST API Testing

Defect Management

CI/CD Concepts

Analytical Skills

Communication Skills

Attention to Detail

Fluency in English

Tools

Xray

Job description

UST, a leader in digital technology services, is seeking a QA Engineer to ensure end-to-end software quality across the delivery lifecycle in a hybrid setup based in Madrid. Applicants should possess strong skills in test case design and experience in Agile environments, particularly with functional and REST API testing. The position offers significant annual leave, flexible compensation programs, and a commitment to work-life balance, making UST a great place to further your career in a supportive environment.