3XL-SolarSolutions.com vacatures

As the Senior Project Manager for Nion, you will work closely with the Nion Senior Technical Product Manager and sit at the critical center of our mission to transform the engine behind our Travel LLMs. You will lead the shift from training disconnected models to building a unified, travel-specific foundation and a suite of task-specific models designed to outperform generic LLMs on travel-related tasks.

Leading a high-profile program of 100 people across multiple teams, you will ensure these models are built for maximum reusability across a wide range of global use cases, eliminating organizational redundancy and fragmentation. You will bridge the gap between cutting-edge AI research and scalable product delivery, ensuring our proprietary intelligence becomes the foundational layer for the entire Connected Trip ecosystem.

We are looking for a strategic project leader with strong data and ML literacy and a solid understanding of data product development. You will partner with senior stakeholders across global, regional and site teams to surface requirements, secure buy-in and keep initiatives aligned with the goals of Booking.com, the Marketplace department and the Nion program. You will champion change in a high-velocity, agile environment where frequent releases impact many layers of the organization, designing governance frameworks from scratch, managing complex cross-functional dependencies, and maintaining a steady delivery rhythm in a high-ambiguity environment.

• Lead the execution of the Travel LLM roadmap, managing the critical path, dependencies, and resources across multiple teams to deliver a predictable, high-velocity release schedule.

• Design and implement the program operating model, including cross-functional ways of working, governance processes, and progress tracking across all matrixed workstreams.

• Partner with Product to drive the roadmap for the Travel LLM foundation, ensuring task-specific models are built with cross-departmental reusability as a core requirement.

• Define and monitor operational and model performance metrics (e.g., accuracy, latency, task effectiveness) and support the consolidation of redundant model-training efforts into the centralized Nion framework.

• Apply structured change management methodology, including stakeholder analysis, engagement plans, and communication strategies to enable adoption of Travel LLM solutions.

• Independently lead high-complexity projects from scoping and planning through execution, analysis, recommendation, and implementation, ensuring a smooth handover to BAU.

• Set up and maintain project governance and reporting, ensuring risks, dependencies, and decisions are clearly captured, communicated, and acted upon.

• Act as primary point of contact for your projects, maintaining strong engagement with stakeholders (up to Director level). Facilitate workshops and working sessions to align on scope, priorities, and solutions.

• Define clear objectives, KPIs, and success metrics for projects and workstreams, and track impact against these over time.

• Bachelor’s degree or equivalent; Agile / PMP or similar certification preferred.

• 5–8 years experience in project/program management in tech, data or product environments.

• Proven track record leading complex, cross-functional programs in a matrixed organisation.

• Experience with platform/ecosystem thinking (platform-as-a-product, central services used by many teams).

• Exposure to AI/ML initiatives and strong data & ML literacy; understands data product development.

• Strong E2E project management (scope, plan, deliver, close) and change management skills.

• Able to influence without authority and align Research, Engineering, Product and senior stakeholders.

• Highly organised, structured and hands-on, comfortable in ambiguity and high-velocity change.

• Excellent communication and stakeholder management up to Senior Manager / Director level.

• Annual paid time off and generous paid leave scheme including: parental (22-weeks paid leave), grandparent, bereavement, and care leave

• Hybrid working including flexible working arrangements, working from home furniture and ergonomic support, and up to 20 days per year working from abroad (home country)

• A beautiful sustainable HQ Campus in Amsterdam, that offers on-site meals, coffee, and snacks, multi-faith and breastfeeding rooms at the office

• Commuting allowance and bike reimbursement scheme

• Discounts & Wallet credits to spend on our products, upgrade to Booking.com Genius Level 3, and friends & family Booking.com discount vouchers

• Free access to online learning platforms, development and mentorship programs

• Global Employee Assistance Program, free Headspace membership

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

• The interview process will entail a total of 4 interviews, all conducted via Zoom video conferencing.

• This role does not come with relocation assistance.

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.

Key Skills: TO BE UPDATED

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.