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Every Artificial Intelligence model lives on the data that someone has collected, cleaned, transformed and served: that someone is the AI Data Engineer, whom the European needs analysis places among the most needed roles and whom businesses, according to the Union’s statistics, genuinely struggle to find. Inside a craft of architectures, data pipelines and a quality that becomes compliance.
Data do not move on their own. They do not clean themselves, do not document themselves and, above all, do not arrive on their own – in the right form and at the right time – to the models that are meant to learn from them. Everything that in Artificial Intelligence seems spontaneous is, upstream, the work of the AI Data Engineer: the figure who designs, implements and maintains the infrastructures for the management and processing of data, ensuring the scalability, quality and accessibility of information and providing reliable datasets for decisions and for training.
The craft, according to the technical sources
Google Cloud’s professional-certification profile describes it thus: “A Professional Data Engineer empowers data-driven decisions by collecting, transforming, storing, and delivering data for diverse applications […] designs and builds robust data infrastructure, optimizing for performance and security” (Google Cloud); the areas of the related exam – designing processing systems, ingesting and processing data, storing it, preparing it for analysis, maintaining and automating workloads – in fact make up the operational perimeter of the craft. As for the central tool, industry documentation defines the data pipeline as “a method in which raw data is ingested from various data sources, transformed, and then moved to a destination – such as a data lake or data warehouse – for analysis” (Databricks).
Where quality becomes compliance
There is a point at which this technical craft meets the law head-on, and it is data quality. Systematic validations, completeness and consistency checks, and traceability of origin and transformations are not merely good engineering: for systems falling within the high-risk categories of Regulation (EU) 2024/1689 (the AI Act), the governance of the training, validation and testing datasets is an express requirement, and its concrete assurance begins in the pipelines that the data engineer builds. The same holds for the protection of personal data: access control, minimisation, and retention and deletion cycles in compliance with Regulation (EU) 2016/679 (the GDPR) are achieved in the architecture, or they are not achieved at all.
The other test is operation: monitoring the flows, handling failures and recoveries, automating recurring workloads. A reliable data ecosystem is recognised on the worst days, not the quiet ones.
Much sought after, and hard to find
On the demand for this profile the European evidence is twofold, and convergent. The skills-needs analysis of the EU co-funded Artificial Intelligence Skills Alliance (ARISA) names it expressly among the most needed roles: “The AI practitioners’ roles that are needed most are data scientists, data engineers and especially machine learning engineers”. And the official statistics document the difficulty of recruitment: “In 2023, 57.5% of EU enterprises that recruited or tried to recruit ICT specialists had difficulties in filling ICT vacancies”, the most frequent cause, found in 43.24 per cent of cases, being precisely the absence of applications (Eurostat). A role flagged as among the most needed, within a category that more than half of businesses cannot recruit: it is hard to imagine a clearer market signal.
The Italian benchmark
The UNI 11621-8:2026 standard includes the AI Data Engineer among the professional role profiles of AI, with competences set out according to the methodology of the European e-Competence Framework, the UNI EN 16234-1 standard; anyone wishing to have such competences attested may undergo assessment by an accredited body under the UNI CEI EN ISO/IEC 17024 standard, within the framework of Accredia Information Circular DC No. 21/2026.
Conclusions
No Artificial Intelligence is better than the data that feed it, and no data reach the models without the engineering that collects, qualifies and serves them. The AI Data Engineer is the custodian of this chain: rarely in the spotlight, always holding up its stage; and the European market, figures in hand, competes for the few available.
In the light of the above, one wonders whether organisations will give the data foundations the priority they willingly reserve for the applications that rest upon them; every euro invested downstream, on fragile foundations, is a euro that sooner or later will present the bill.
