Test Engineer II

Booking.com; Amsterdam; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Generous leave

Hybrid work

Product discounts

Job summary

Booking.com in Amsterdam, Netherlands, is seeking a proactive Test Engineer II to join our CS SES testing team. You will work across cross-functional squads to test Pega workflows from an end-user perspective, focusing on Customer Service agents.

You will embed into Agile teams to drive risk-based testing, advocate testability early, and build deterministic automated checks for APIs and backend services, including AI testing methodologies.

Qualifications

• Experience in test design, execution, and automation in Agile environments.
• Hands-on backend and API testing plus frontend testing for low-code platforms.
• Familiar with Playwright, Rest Assured or Postman for automation.
• Experience testing AI/LLM features and models.
• Strong risk-based and exploratory testing skills.

Responsibilities

• Execute test design and risk-based testing from design to release within cross-functional Agile squads.
• Guide teams to test features early, advocating for isolated verification, shift-left testing.
• Build and maintain fast, deterministic test automation for APIs and backend services.
• Test end-to-end Pega workflows from an agent perspective with non-functional checks (performance, security, etc.).
• Explore, implement, and test AI features and LLM models within testing workflows.
• Coach and mentor less experienced test engineers on testing best practices.

Skills

Test design

API testing

Backend testing

Frontend testing

AI testing

Coaching

Stakeholder mgmt

Pega knowledge

Tools

Playwright

Rest Assured

Postman

Job description

About Us:

At Booking.com, data drives our decisions. Technology is at our core. And innovation is everywhere. But our company is more than datasets, lines of code or A/B tests. We're the thrill of the first night in a new place. The excitement of the next morning. The friends you encounter. The journeys you take. The sights you see. And the memories you make. Through our products, partners and people, we make it easier for everyone to experience the world.

About Us:

At Booking.com, data drives our decisions. Technology is at our core. And innovation is everywhere. But our company is more than datasets, lines of code or A/B tests. We're the thrill of the first night in a new place. The excitement of the next morning. The friends you encounter. The journeys you take. The sights you see. And the memories you make. Through our products, partners and people, we make it easier for everyone to experience the world.

Leadership/Team Quote:

"In Customer Service Software Engineering Services (CS SES), our focus is on empowering customer service agents with seamless Pega workflows so they can deliver world-class experiences to our travelers. As a Test Engineer on our team, you won't just execute tests—you will champion quality engineering, drive AI-driven testing innovation, and directly shape tools used by thousands of agents every day."

Role Description:

We are looking for a proactive Test Engineer II to join our CS SES testing team in Amsterdam. In this role, you will work across cross-functional squads to test Pega workflows from an end-user perspective, with Customer Service agents as your primary focus. You will embed directly into Agile teams to drive risk-based testing, advocate for early testability, and build deterministic automated checks. If you are passionate about combining strong backend/API testing with low-code front-end applications and cutting-edge AI testing methodologies, this role offers an exciting opportunity to make a real impact on our operations.

Key Job Responsibilities and Duties:

• Independently execute test design, risk-based testing, and quality practices from initial design to release within cross-functional Agile squads.
• Guide teams to make features testable early, advocating for isolated verification, shift-left testing, and sustainable root cause analysis.
• Build and maintain deterministic, fast-feedback test automation for APIs and backend services using tools like Rest Assured, Playwright, or Postman.
• Test and validate end-to‑end Pega customer service workflows from an agent perspective while integrating non-functional checks (performance, accessibility, security, or resiliency).
• Explore, implement, and test AI features and LLM models within testing workflows (e.g., using Claude Code or similar frameworks).
• Coach and mentor less experienced test engineers on testing best practices, testability, and continuous quality improvements.
• Collaborate closely with cross-functional squads and partner teams to communicate quality trade-offs clearly to both technical and business stakeholders.

Qualifications & Skills:

• Strong experience in test design, execution, and test automation across the full software delivery lifecycle in Agile environments.
• Proven hands-on experience in backend and API testing alongside front-end testing for low-code platforms,
• Practical experience with relevant test automation tools and frameworks (e.g., Playwright, Rest Assured, Postman).
• Demonstrated understanding of testing AI/LLM models and practical experience using AI tools (e.g., Claude Code) to enhance testing practices.
• Solid understanding of risk-based testing, exploratory testing, non-functional testing, and observability/troubleshooting techniques.
• Strong coaching, communication, and stakeholder management skills with a dedicated customer and end-user mindset.
• Familiarity with Pega product architecture and workflows would be good to have.

Benefits & Perks - Global Impact, Personal Relevance:

Booking.com's Total Rewards Philosophy is not only about compensation but also about benefits. We offer a competitive compensation and benefits package, as well unique-to-Booking.com benefits which include:

• Annual paid time off and generous paid leave scheme including: parent, grandparent, bereavement, and care leave.
• Hybrid working including flexible working arrangements, and up to 20 days per year working from abroad (home country).
• Industry leading product discounts - up to €1400 per year - for yourself, including automatic Genius Level 3 status and Booking.com wallet credit.

Inclusion at Booking.com:

Inclusion has been a core part of our company culture since day one. This ongoing journey starts with our very own employees, who represent over 140 nationalities and a wide range of ethnic and social backgrounds, genders and sexual orientations.

Take it from our Chief People Officer, Paulo Pisano: "At Booking.com, the diversity of our people doesn't just build an outstanding workplace, it also creates a better and more inclusive travel experience for everyone. Inclusion is at the heart of everything we do. It's a place where you can make your mark and have a real impact in travel and tech."

We ensure that colleagues with disabilities are provided the adjustments and tools they need to participate in the job application and interview process, to perform crucial job functions, and to receive other benefits and privileges of employment.

Application Process:

• Let's go places together: How we Hire
• Location: Amsterdam, Netherlands
• Relocation: This role does not come with relocation assistance or hiring sponsorship.

Booking.com is proud to be an equal opportunity workplace and is an affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We strive to move well beyond traditional equal opportunity and work to create an environment that allows everyone to thrive.

Pre-Employment Screening:

If your application is successful, your personal data may be used for a pre-employment screening check by a third party as permitted by applicable law. Depending on the vacancy and applicable law, a pre-employment screening may include employment history, education and other information (such as media information) that may be necessary for determining your qualifications and suitability for the position.