For years, data engineers have lived with a paradox. We treat our code with the utmost discipline version control, automated testing, continuous deployment, yet the very thing that code manipulates, the data itself, is often left unmanaged.
In many organisations, especially those with complex legacy systems, data is copied, transformed, and moved with little transparency. If something breaks or numbers don’t match, the post-mortem usually involves emails, spreadsheets, and guesswork.
“Data as Code” is the idea that we should apply the same principles that revolutionised software development to the world of data.
It means treating datasets, transformations, and even business definitions as artefacts that can be versioned, tested, and deployed with the same rigor as source code.
Instead of mysterious pipelines hidden in a black box, every change to data logic becomes traceable and auditable.
The novelty here is not in the tools themselves. Concepts like data pipelines, version control, and DevOps have been around for years.
What’s new is the reframing: in the last few years, thought leaders and open-source projects have started to converge around the idea that data should be managed as if it were code. That shift, from a technical fix to a cultural paradigm, is why “Data as Code” feels fresh and urgent today.
The potential impact is enormous. Imagine a Nigerian government agency managing oil revenue reports with fully auditable data lineage, or a UK healthcare provider integrating hospital records with clear, versioned definitions of every field. Suddenly, disputes about “the right number” give way to transparent, testable, and explainable processes. In both contexts, trust is built not by assuming data is correct but by showing how it got there.
Of course, adopting this approach is not simple. It requires new tools, new workflows, and, most importantly, a mindset shift. Just as DevOps once seemed like a niche practice before becoming mainstream, Data as Code is at a similar inflection point.
For practitioners, the takeaway is clear: the future of data engineering will be written in the same disciplined, transparent way we already expect of software development. For policymakers and business leaders, the promise is just as compelling: greater trust, accountability, and resilience in the systems that run our economies and institutions.
In short, treating data as code is not just a technical trend; it’s a cultural one. And like every cultural shift in technology, its real power will lie in how quickly organisations choose to embrace it.
About Soji Olaleru
Exploring the future of data and its real-world impact.
Soji Olaleru is a data engineering and enterprise architecture professional with a focus on how emerging practices can transform the way organisations manage information. With experience at the crossroads of innovation. My work often draws on lessons from both Africa and the UK, where the challenges are different but the need for reliable, transparent data is universal
