Software Engineer

Building software applications

Bachelor’s Degree in Computer Science or related field
3+ years of experience as a software engineer using a server side programming languages, preferably Java
Is able to build software applications by using relevant development languages and applying knowledge of systems, services and tools appropriate for the business area
Is able to write readable and reusable code by applying standard patterns and using standard libraries
Is able to maintain data security, integrity and quality by effectively following company standards and best practices
Help grow the business and/or accelerate software development by applying engineering techniques (e.g. prototyping, spiking and vendor evaluation) and standards

Software Systems Design

Evaluate possible architecture solutions by taking into account cost, business requirements, technology requirements and emerging technologies
Describe the implications of changing an existing system or adding a new system to a specific area, by having a broad, high-level understanding of the infrastructure and architecture of our systems
Meet business needs by designing solutions that meet current requirements and are adaptable for future enhancements

Critical Thinking

Find solutions to difficult or complex issues by applying different skills and techniques like analytical thinking, lateral thinking, and logical reasoning
Constructively improve existing ideas, plans and solutions by reviewing them in a critical yet constructive manner, initiating concrete improvements and articulating their rationale
Continuous Quality and Process Improvement
Identify opportunities for process, system, and/or structural improvements, by applying an understanding of process flows and the methods that can be used to boost effectiveness and efficiency

Effective Communication

Deliver clear, well-structured, and meaningful information to a target audience by using suitable communication mediums and language tailored to the audience
Achieve mutually agreeable solutions by staying adaptable, communicating ideas in clear coherent language and practicing active listening

Protect Millions. Power Trust. Build the Future of Secure Travel.

At Booking Holdings, we make it easier for everyone to experience the world. Behind that seamless experience is a powerful security infrastructure and we want you to help make it stronger.

Join our mission-critical team as a Software Engineer, where you'll design and build the systems that defend against evolving cyber threats. You’ll be at the heart of securing the world’s largest travel platform, creating high-performance scalable solutions that protect user accounts, prevent data breaches, and uphold customer trust across the globe.

We’re not just looking for coders; we’re looking for engineers who are passionate about security, care about clean, resilient architecture, and are ready to face real-world challenges with smart, innovative solutions.

What you’ll do:

Build robust high-volume backend systems that detect, respond to, and prevent security threats, mainly using Java, Kafka, Cassandra, DynamoDB and other scalable technologies.
Partner closely with security and platform teams to deliver tools that keep our users and data safe.
Scale and harden our platform while maintaining performance and reliability.
Leverage AWS to deploy and operate secure, cloud-native infrastructure.

Tech you’ll use:

Languages: Mainly Java, with a touch of Python & Perl
Data & Messaging: Kafka, Cassandra, DynamoDB, Redis, MySQL
Cloud & Infra: AWS, Docker, Kubernetes, Terraform
Monitoring: Grafana, OpenTelemetry

This role provides a hybrid way of working with an on-site presence of 2 days/week.

Key Job Responsibilities and Duties

Writes software to support internal and customer-facing applications.
Plays a key role in building distributed software applications to enrich our analysis and machine learning models for prevention, detection, and remediation mechanisms.
Focuses on innovation to address complex technical issues associated with distributed systems.
Own the solution end to end, from design and implementation to deployment and monitoring in production.
Contributes to the development of our organization by communicating improvement ideas and proposals to partners across multiple other teams.

Benefits:

• Health insurance
• Prepaid medical subscription (Regina Maria)
• Life insurance
• Meal vouchers
• Learning wallet
• Travel benefit
• Annual vacation leave of 25 business days, pro rata with the working period
• Birthday day off
• Summer break (short Fridays during summer)
• Work from Abroad program (up to 20 days/year in EU)
• Floating days off
• 2 Volunteer days/ year
• Home office one-time bonus
• Bookster
• Linkedin learning platform
• Headspace
• Employee discounts (travel, gym, dental, vision)