Constantine Nikolaou

I've spent 25 years building systems. The hardest ones are teams.

Professional Services Manager, EMEA — Booking.com
Executive MBA · University of Amsterdam
Connect on LinkedIn
Portrait of Constantine Nikolaou

The Journey

🇱🇧 مرحبا, I'm Constantine.

I grew up between languages and countries, Lebanese, Greek, French, and English around the dinner table, and I've been navigating between worlds ever since. I carried that through the startup world, across multiple places and countries, and into Booking.com, where I've been for seven years. Somewhere along the way I learned the real lesson. The hardest systems aren't the technical ones. They're the teams and organizations behind them, and that's the thread that runs through my whole career.

After years as an individual contributor, in the startup world and later as a Solutions Architect at Booking.com, I was ready to level up. I wanted to operate strategically, not just technically. The EMBA at the University of Amsterdam gave me the frameworks, the knowledge, and the space to shift from execution to strategic thinking, to shape direction instead of just delivering it. It validated what my years as an IC had taught me, and it prepared me to lead multidisciplinary teams with real impact. My thesis, Balancing Profitability and Sustainability: How multinationals manage their dual mission tensions, explored how multinationals pursue two strategic objectives at once and the cultural tensions that come with it.

Today, I lead the Professional Services Connectivity Partnerships, EMEA team at Booking.com, based at the headquarters in Amsterdam. It's a new team, built to help partners connect to Booking's platform in the best way possible, so they perform at their best and run at scale. The thing my thesis was about, multinationals balancing dual missions and cultural tensions, turned out to be my day job. As for what's next, I'm building the Professional Services function to scale across EMEA, and designing how Booking.com supports partners at the strategic level.

What I Bring

Technical Architecture

I've designed and shipped systems that run at global scale, from the platforms I taught myself to build to the connectivity infrastructure at Booking.com.

People Leadership

I lead a team of advisors and experts across EMEA who help partners get the most out of Booking's platform, and I've learned that a team that trusts each other ships faster than any well architected system.

Business Strategy

My EMBA taught me to see technology through a business lens, turning objectives into roadmaps that make sense to engineers and executives alike.

Experience

Professional Services Manager, EMEA · Oct 2025 — Present

Booking.com

Leading a new team of four advisors and experts who help connectivity partners maximize performance and run at scale on Booking's platform.

Manager, Business Solutions Architect · Apr 2024 — Oct 2025

Booking.com

Led a team of advisors and experts across EMEA, onboarding new partners and scaling delivery capacity to match growing demand.

Solutions Architect · Nov 2019 — Apr 2024

Booking.com

Led the implementation of hotel management APIs for large hotel chains, automating room rate setup on Booking.com's marketplace, cutting setup time from weeks to hours and reducing manual errors.

Senior Solutions Architect · May 2018 — Oct 2019

Mobiquity

Led the migration of BPI Bank's public website infrastructure in the Philippines to a scalable platform, with zero downtime for over 4 million online customers across 23 public websites. Architected the launch of ILA, Bahrain's first fully online bank, on AWS with a headless CMS and an AI-powered digital assistant.

Solutions Architect · Aug 2016 — Apr 2018

Keeward

Worked with the engineering team to transform and scale the business of selling books online. Designed solutions to scale the data platform, decomposed a large Oracle database into smaller data cubes, and ran tech executive workshops to align roadmaps with business objectives.

Co-founder & CTO · Jan 2013 — Mar 2016

Referd

Co-founded a startup between Beirut and Paris. Led technical development of the mobile app and platform backend, validated the business model through customer discovery, and drove product strategy and go-to-market.

Education

UNIVERSITY
OF AMSTERDAM

Executive MBA

Amsterdam Business School, University of Amsterdam · 2022 — 2024

Focused on quantitative finance and strategic leadership, with a thesis on how multinationals balance profitability and sustainability. The program gave me the frameworks to shift from execution to strategic thinking.

Bachelor of Arts, Management Information Systems

Haigazian University · 2001 — 2006

Co-founder and editor of the Haigazian University Business Society magazine, and organizer of events hosting international business leaders.

Community & Impact

MENA Devs — Founder

Founded 2015

Founded a Slack group connecting developers, designers, and computer enthusiasts across the MENA region. Built it into a community of 300+ members before stepping back.

Speaking & Events

APIdays Paris · Dec 2025 · APIdays New York · May 2025

Panelist and speaker at APIdays conferences in Paris and New York, sharing perspectives on APIs, connectivity, and platform partnerships.

What I'm Reading

1
The Leadership Pipeline
The classic on how leadership changes at every level, and why most leaders struggle until they unlearn the level below. It framed my own shift from individual contributor to manager. Ram Charan, Stephen Drotter, James Noel
2
Thinking in Systems
Systems thinking without the jargon. It shaped how I see organizations as interconnected systems, not just boxes on an org chart. Donella Meadows
3
Good Strategy, Bad Strategy
The clearest definition of what strategy actually is, and the discipline behind it. It's the lens I use to separate real strategy from the fluff that calls itself strategy. Richard Rumelt

Let's Connect

Open to conversations about scaling professional services, building partner ecosystems, and the future of connectivity in the age of AI. Let's talk on LinkedIn.