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Maciej BrzekBuilder & technology leader

I build, launch and improve
digital products.

Maciej Brzek, black-and-white portrait in a dark jacket

I’m Maciej Brzek, a technology leader and hands-on product builder based in Spain, with 14 years in software quality and engineering leadership. I’ve led distributed teams, improved delivery practices and brought my own ideas into products and businesses.

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Meet Maciej

01Experience

Experience across product, engineering and
customer trust.

Selected roles at

  • The Economist
  • Reapit
  • Smartcat
  • Cotality

02Selected work

Ideas made
real.

Products and businesses that bring together how I think, build and lead.

View all work
  1. 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.    In development
  2. 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.    Launched
  3. 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.    Launched

03Expertise

From concept to
confidence.

  1. Product
    Creation

    Turn an idea into a focused product, connecting discovery, user experience and hands-on development.

  2. Brand
    & Growth

    Give the product a clear identity and a considered route to market, from positioning and visual direction to launch content.

  3. Quality
    & Scale

    Build confidence in how software behaves and how teams deliver it, through practical quality engineering, automation and AI evaluation.

Practical help from idea
to delivery.

From the first idea to the systems behind a reliable release, I connect product development, brand thinking and engineering quality.

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04Results

The work behind
the claims.

View case studies

The EconomistSenior QA/QE Manager, mobile and content delivery

Sustaining quality across two mobile apps and their content delivery platform.

The Economist app, the Espresso app and the platform behind them: regression for the flagship app went from 4–5 days to 1–2 hours of automated test execution, while collaboration, layered automation, platform integration testing and physical-device coverage helped sustain ratings of 4.9 on the App Store and 4.8 on Google Play.

Starting point
4–5 days per regression cycle
Result
1–2 hours of automated test execution
My contribution
I connected quality across the mobile apps and the platform behind them: making testing repeatable, performance and stability measurable, and release decisions grounded in evidence.
What the figures do not show
The end point is the time the automated tests took to run, not the length of a whole regression cycle. Both figures are approximate ranges; the period and method of measurement are not published, and no percentage improvement is claimed. Store ratings are public averages that move over time.

What are you
building next?

If you’re shaping a product, improving delivery or looking for a technology leader, let’s talk.

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