01 / Website operator
Ricardo Teixeira Zein
Independent AI, DevOps and software consultant
Matosinhos, Portugal
This site presents professional experience and independent consulting services. Its content is general information, not a binding offer, professional guarantee or substitute for advice based on a complete technical assessment.
Browsing the site, sending an email or booking an introductory call does not create a client relationship. Any engagement is governed by a separate written proposal or agreement.
02 / Client work and trade marks
The delivery relationship stays explicit.
Company names and logos identify platforms to which Ricardo contributed through Vorttex or Airfleet. The relevant agency attribution appears beside the work. Unless a page explicitly says otherwise, those companies did not contract with Ricardo directly.
Names, logos and trade marks belong to their respective owners and are used only to identify the referenced organisations and work context. Their inclusion does not imply ownership, sponsorship, endorsement or a current commercial relationship.
No confidential client information, internal documentation or non-public performance data is intended to appear on this site. A rights holder can request a correction or removal through the contact address above.
03 / Privacy notice
Only the data needed to run the site and respond to contact.
Ricardo Teixeira Zein is the data controller for personal data handled through this website and related business communication.
Site delivery and security
The hosting provider may process request data such as IP address, browser and device information, requested URL, referrer and timestamp to deliver, protect and diagnose the site.
- Legal basis
- Legitimate interests in providing and securing the site.
- Retention
- According to the hosting provider's operational and security retention periods.
Email and enquiries
If you make contact, the message, contact details and related correspondence are used to respond, assess the request and prepare any requested proposal.
- Legal basis
- Pre-contractual steps at your request or legitimate interests in business communication.
- Retention
- Until the enquiry is closed, then only as required for an engagement, legal obligations or the defence of legal claims.
Call scheduling
Booking happens on Cal.com. The details you submit are processed for scheduling and may be synchronised with the connected Google Calendar.
- Legal basis
- Pre-contractual steps at your request.
- Retention
- As needed to arrange and follow up the call, subject to the providers' own retention settings.
Service providers and international processing
The site relies on Netlify for hosting, opens in a new tab, Cal.com for booking, opens in a new tab, a calendar provider and an email provider. If analytics is allowed, it also uses Google Tag Manager and Google Analytics 4, opens in a new tab. These providers may process data outside the European Economic Area under the safeguards described in their privacy terms.
This site has no contact form, user account, newsletter or automated decision-making. External links only transfer you to another service when you choose to follow them.
05 / Your rights
You can ask what is held and how it is used.
Depending on the circumstances, data-protection rights can include access, rectification, erasure, restriction, portability, objection and withdrawal of consent. Withdrawing consent does not affect processing that was lawful before withdrawal.
Use the contact address above to exercise a right. Reasonable information may be requested to verify identity without collecting more data than needed.
You may also lodge a complaint with Portugal's Comissão Nacional de Proteção de Dados, opens in a new tab.
Last updated: 27 August 2026.