01
2015
Teaching my three-year-old programming with Lego
A small experiment in shapes, constraints, and problem solving.
George Hadjivarnava · Cyprus
A lifelong builder
of useful things.
I work across physical things, software, systems, teams, and culture— making practical problems clearer and more workable.
A little more about meWriting since 2012
Still building
01 / About
Making things,
then making them last.
I have been making things since childhood, including woodworking from age five.
I am an engineer at heart, drawn to simple, unconventional solutions. I try to make rules and abstractions explainable, make room for conversation, and lead by example when a team needs to find its way.
The aim is to build products and operating conditions that keep working after any one person steps back. Foody, Delivery Hero, Moving Doors, and Terra are chapters where I have applied that approach with teams.
02 / Evidence from the archive
The habits behind
the work.
Writing on parenting, working method, and hands-on making: early evidence of the questions that still shape how I build.
03 / Venture chapters
Where the approach
met the work.
Recent writing on the companies, systems, and decisions where these ideas have been tested alongside other people.
01
2019 to 2026
Learning scale at Delivery Hero
What changes when local product intuition meets the systems and constraints of a global company.
02
2022 to 2025
Opening Moving Doors
How advising Staycaee led to taking equity and an active technical co-founder role before the company rebranded to Moving Doors.
03
2026 to now
Terra now
How the earlier chapters inform current work on engineering, health data and AI at Terra.
04 / Contact
Find me
elsewhere.
The simplest way to get in touch is through one of these public profiles.
