Full Stack Engineer II

At Booking Holdings, 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 make. The journeys you take. The sights you see. And the food you sample. Through our products, partners and people, we make it easier for everyone to experience the world.

Business Overview

The Tax Tech track within Financial Systems owns, manages and develops the various pillars of the tax platform, used by BKNG systems to collect taxes accurately and in a compliant way from our supply partners. The team is directly responsible for delivering critical Must-Do priorities and looking for a driven engineer to help realise the long term architectural and business vision.

Role Description

As a Full Stack Engineer II, you are responsible for the development, performance, and scaling of internal systems. You will work independently and will also be responsible for making technical decisions within a team.

What You’ll Be Doing

• Design and implement end-to-end product features.

• Evaluating customer needs and coming up with ideal solutions for it, assessing different languages (Java, Javascript, etc), architecture and risks.

• Rapidly developing next-generation scalable, flexible, and high-performance systems, with end-to-end ownership by monitoring and adjusting SLIs and SLOs.

• Continuously learn and apply modern development methodologies and tools

• Deploy and maintain software in production

• Proactively propose improvement ideas to reduce technical debt and increase business impact of your team

• Solving issues with internal systems, prioritizing based on customer and business impact

• Acting as an intermediary for problems, with both technical and non-technical audiences

What You’ll Be Bringing

• 5+ years of software development experience working with at least one server-side programming language (Java, Scala etc), Javascript, HTML, CSS and one of the modern frameworks (React, Vue, Angular etc.) using modern tools and methodologies.

• Experience with AWS/Azure/GCP cloud native solution.

• Experience in designing and delivering complex frontend applications.

• Demonstrable experience with relational and non-relational databases.

• Experience with Docker and Kubernetes is a plus.

• Experience with Typescript and GraphQL is a plus.

• Deep understanding of cross-browser and cross-platform development (feature compatibility, responsive design, graceful degradation, progressive enhancement).

• Experience in delivering and maintaining software in production with basic understanding of scalability, security and reliability aspects.

• You own your systems end-to-end and are comfortable performing incident management.

• Operational Excellence: Demonstrated ability to keep critical systems up and running, with a strong grasp of reliability, troubleshooting, and incident management.

Where You’ll Be

This role offers a flexible hybrid model.