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About

A builder’s mindset.
A leader’s perspective.

I’m Maciej Brzek, a technology leader and product builder based in Spain. My background spans software quality engineering, leadership and customer trust. Alongside leading globally distributed teams, I build products and businesses of my own. That combination gives me a practical understanding of what it takes to turn strategy into something that works.

Based in
Spain
Working languages
English and Polish
Teams
Experience leading distributed teams
Maciej Brzek, black-and-white portrait in a dark jacket

01Story

Where the two sides meet

For the past 14 years, I’ve led quality across organisations and industries, including The Economist and Reapit. That work has taught me to question assumptions, look for evidence and understand how software behaves when real people rely on it. Those habits still shape how I build products and lead teams.

My experience spans quality strategy, test automation, distributed teams and improving how organisations deliver software. At The Economist and as Head of QA for the UK and EMEA at Reapit, I helped teams strengthen their testing and release practices. As Head of Customer Trust at Smartcat, I’ve extended that work into AI workflows, checking whether agents actually achieve the intended outcome. The question running through it all is simple: can customers rely on what we ship?

Alongside those roles, I’ve developed the creative and commercial side of my work by building businesses and products of my own. I’m developing YoMaxi, a life-organisation app, bringing together the product concept, brand, user experience and implementation. I co-founded Deal Wizard, an AI product venture, and I run City Dreams, a property management business where I’ve worked across branding, booking systems, operations and the guest experience.

Building my own ventures means making the decisions I help other teams make: what to prioritise, where to invest time and when something is ready to launch. It brings my experience in engineering and leadership together with the practical work of creating something people want to use.

02Roles

Selected roles

Employment, most recent first (a selection rather than a full CV).

  1. Smartcat

    Head of Customer Trust

    AI workflow quality and release confidence.

    Case studyMaking AI evaluations trustworthy at an AI-native language-technology platform.

  2. Reapit

    Head of QA, UK & EMEA

    Quality strategy and distributed leadership across the UK and EMEA.

    Case studyModernising quality engineering at a UK property-technology company.

  3. The Economist

    Senior QA/QE Manager

  4. ALDI eCommerce

    Quality engineering

    Earlier quality engineering experience: the hands-on foundations of the later leadership roles.

  5. Cotality (formerly CoreLogic)

    Quality engineering

    Earlier quality engineering experience in test and release quality.

03Principles

How I work

Four habits that hold whether I am leading a team or building something myself.

  1. Understand the problem

    Before proposing a solution, I want to know who has the problem, what they do about it today and what would count as better.

  2. Make progress visible

    Work lands in small, shippable steps that people can see and react to, so direction is corrected early rather than at the end.

  3. Verify real outcomes

    A change is done when its effect is observed, not when the code is merged, and what was measured stays separate from what was hoped for.

  4. Keep the process useful

    Process earns its place by helping the team deliver; when a ritual, tool or gate stops doing that, it is changed or removed.

04Own work

Independent work

Products and businesses of my own, alongside employment. Each page states the actual stage and my contribution.

  • YoMaxi

    Making everyday progress feel rewarding.

    A life-organisation app that brings goals, habits and tasks across the areas of life into one daily loop with a friendly sidekick, under active development.

    Contribution
    Founder, Product Creator & Creative Lead
    Stage
    In development
  • Deal Wizard

    Property deals, analysed by AI.

    An AI-powered property investment analysis platform that turns a listing into a structured investment report. I co-founded Deal Wizard and led its product design, development and implementation.

    Contribution
    Co-founder & Product Lead
    Stage
    Launched
  • City Dreams

    Turning a property business into a platform.

    The systems behind a London short-let and property-management business: one system of record, the sales channels and dynamic pricing, then a direct-booking site of its own.

    Contribution
    Founder, owner and operator
    Stage
    Launched

All work

05Writing

Published writing

Pieces on quality engineering and AI, published on LinkedIn.

06Elsewhere

Music, photography and film

Outside technology, I’m drawn to music, photography and filmmaking, including drone footage, and to the experience of a place. I use photography and film to capture the places and moments that catch my attention.

A leadership role, or a focused problem?

Tell me about the remit or the challenge, and where you are in the process.