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

🇱🇧 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.
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.
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.
My EMBA taught me to see technology through a business lens, turning objectives into roadmaps that make sense to engineers and executives alike.
Leading a new team of four advisors and experts who help connectivity partners maximize performance and run at scale on Booking's platform.
Led a team of advisors and experts across EMEA, onboarding new partners and scaling delivery capacity to match growing demand.
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.
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.
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-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.
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.
Haigazian University · 2001 — 2006
Co-founder and editor of the Haigazian University Business Society magazine, and organizer of events hosting international business leaders.
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.
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.
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.