Application Security Engineer II

About Us

uses data to drive decisions. Technology is at our core, and we strive to make it easier for everyone to experience the world through our products, partners and people.

About the team 's Application Security team protects the world's largest travel platform against attacks targeting our application stack. The team develops and maintains signals, tools and infrastructure used to secure products and defines secure coding practices for all developers. We work with product and engineering teams to ensure customer data remains safe through secure-by-design software architecture.

Role Description

As an Application Security Engineer, you will play a key role in safeguarding the security and privacy of customers. You will build and operate advanced security tooling, automate remediation, analyze security indicators, and partner with product teams to embed security throughout the software development lifecycle. Your expertise will contribute to the detection, prevention and response to application security threats across 's global platform.

Key Job Responsibilities and Duties

• Provide ongoing technical assistance and application security guidance for new products and technologies used at
• Develop, configure, and implement software related to security controls that protect against potential threats
• Build software tools and services for automated security response and remediation
• Develop standards, methodologies, procedures, and documentation for 's Software Development Lifecycle (SDLC)
• Conduct application security assessments and source code reviews
• Analyze, assess, and respond to application security threats and incidents
• Partner closely with product and engineering teams to improve security architecture and practices

Role Qualifications and Requirements

• Bachelor's or Master's degree in Computer Science or a related field, or equivalent practical experience
• 3+ years of relevant industry experience
• Strong coding experience for tooling development and security code reviews
• Bonus: Java, Perl, JavaScript, Python, or Go
• Extensive knowledge of web application security and/or mobile security
• Experience analyzing large-scale data sets
• Strong understanding of the Software Development Lifecycle with emphasis on security integration (SAST, DAST, threat modeling, security testing)
• Excellent communication skills; fluent in English (written and spoken)
• Strong team player with a collaborative mindset and commitment to shared success

Benefits & Perks

• Annual paid time off and generous paid leave scheme including: parent, grandparent, bereavement, and care leave
• Hybrid working including flexible 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 Genius Level 3 status and wallet credit
• Living and working in Amsterdam, a cosmopolitan city in Europe
• Contributing to a high-scale, complex, world-renowned product with real-time impact on millions of travelers worldwide
• Working in a fast-paced and performance-driven culture
• Opportunity to utilize technical expertise, leadership capabilities and entrepreneurial spirit
• Promote and drive impactful and innovative engineering solutions
• Technical, behavioral and interpersonal competence advancement via on-the-job opportunities, experimental projects, hackathons, conferences and community participation
• Competitive compensation and benefits package and some great added perks of working in the home city of

Diversity, Equity and Inclusion (DEI) at

Diversity, Equity & Inclusion have 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 backgrounds, genders and sexual orientations.

Take it from our Chief People Officer, Paulo Pisano: "At , the diversity of our people creates a better and more inclusive travel experience for everyone. Inclusion is at the heart of everything we do."

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
• This role does not come with relocation assistance

is proud to be an equal opportunity workplace and 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 that may be necessary for determining your qualifications and suitability for the position.