Full-Stack Engineer (Backend-Heavy)

Job title: Full-Stack Engineer (Backend-Heavy)

Focus: Platform Experience & Partner Ecosystem

Location: Amsterdam

Contract length: 12 months (consisting of 6 months + 6 months)

Booking.com is currently recruiting for 3 Full-Stack Engineers.

Role Overview

As a critical member of the Platform Experience team, you will be responsible for the continuous delivery of features that empower our partner ecosystem. While these are full-stack positions, the work is approximately 70% Backend and 30% Frontend.

You will lead high-stakes refactoring and maintenance of core systems—specifically the Partner Management API (PMA) and SF-Proxy—ensuring that partner data remains secure, compliant (SOX/DMA), and highly accessible across the entire organizational landscape.

We are looking for autonomous engineers who can take a well-defined task and drive it to completion independently.

Core Responsibilities

• Mission-Critical System Evolution: * PMA Refactoring: Lead the architectural refactoring of the Partner Management API. You will ensure core partner data remains the "single source of truth" while providing secure, compliant access for all dependent systems.
• SF-Proxy Management: Maintain the bidirectional bridge between Salesforce and PMA. You will ensure data integrity and security compliance (SOX) while syncing data between systems via direct API calls and database integrations.
• Software Engineering Excellence: Build robust services using Java and Spring Boot on the backend, and TypeScript, Node.js, and React on the frontend.
• End-to-End Ownership: Monitor application performance and act decisively on health metrics. You will manage the full lifecycle of services, from development to deployment, using CI/CD and experimentation frameworks.
• Technical Incident Management: Address production issues within SLA and move beyond "quick fixes" by producing long-term solutions through Root Cause Analysis (RCA) and postmortems.
• Architectural Guidance: Advise product teams on solutions, challenge design rationales, and help set the direction for technical capabilities by evaluating target architecture improvements.

Technical Stack

• Backend (Primary): Java, Spring Boot.
• Frontend: TypeScript, Node.js, React, GraphQL.
• Legacy: Minimal exposure to Perl (no prior experience required; support is provided).
• Integrations: Salesforce (Direct API/Database sync; no MuleSoft experience required).

Required Qualifications & Skills

• Strong Backend Foundation: You are a Java specialist who is comfortable and willing to work across the full stack (React/TypeScript) when needed.
• Autonomy & Leadership: Proven ability to "drive" a project or workstream independently. We value candidates who have led specific initiatives or projects within a team.
• Refactoring Expertise: Demonstrated ability to refactor legacy codebases into modern, scalable architectures without disrupting dependent services.
• Big Company Experience: Comfortable navigating the balance of independent work within a large-scale enterprise environment (including necessary bureaucracy and compliance standards).
• Compliance Awareness: While you don't need to be a specialist, you should be comfortable working within SOX/DMA compliance frameworks and participating in security-related technical discussions.
• DevOps Mindset: Comfortable with CI/CD pipelines, automated testing, and cloud-native monitoring tools.
• Experience in large-scale tech environments (e.g., Booking.com or similar) is a significant plus.

Note: There is no hands-on live coding; the focus is on high-level technical discussion and project history.

Interview Process

Single Stage: A comprehensive one-hour interview covering technical depth, behavioural fit, and past experience.

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.