Krzysztof Słowiński

Krzysztof Słowiński

Fractional CTO with 15 years of experience in high-scale engineering. I help high-growth teams audit technical debt, architect AI-ready data foundations, and bridge the gap between legacy systems and autonomous agents.
06
Oct
Grey room lined floor to ceiling with filing drawers, a few pulled open at random, representing documents stored everywhere with no one deciding which version counts.

The documents your AI reads were never treated as data

The most valuable input to most AI features never passed through the data platform. Contracts, pricing sheets, and support tickets have no data owner and no rule for which version is current, a governance gap that sits next to the data platform rather than inside it.
4 min read
29
Sep
Corridor between towering walls of rust-red and blue stacked shipping containers narrowing to a vanishing point, representing an inherited data dependency with no clear ownership or exit.

The data contract your vendor never signed

Internal data contracts rely on shared governance and shared authority. When the data producer is outside your organisation, neither exists — external data quality is a negotiation problem, not a governance one.
4 min read
22
Sep
A dark interior staircase with vertical metal railings ascending into shadow, representing a career path that has no defined top for the data engineer climbing it.

Your data engineers are advancing on a ladder designed for someone else

Most data engineering career ladders are software engineering career ladders with the title changed. The divergence between the two disciplines — what distinguishes senior from staff, and staff from data architect — is the part most companies have never described.
4 min read
15
Sep
Dark data centre cable network photographed through server rack mesh doors, representing the dense interconnections an AI agent can traverse without a deliberately designed access boundary.

Your data access model assumes a human is asking

AI agents enumerate available data before deciding what to query. Your data access model was designed for a data consumer who arrives with a formed question.
4 min read
08
Sep
Metal structural framework photographed from below against a grey sky, evoking the hidden dependency graph behind every data migration decision.

The business question data lineage was built to answer

The answer to "what will break if we migrate this data source?" is already computed in the data lineage graph. It is rarely the first place anyone looks.
4 min read
01
Sep
A grayscale photograph of a solitary chair beside a window, its seat empty in a quiet interior, representing the vacant accountability role that sits between data delivery and business trust.

Your data product has contributors but no owner

Most data platforms have engineers accountable for whether data arrives. Almost none have anyone accountable for whether it is correct, trusted, and fit for the decision it is supposed to support — and that missing accountability is the root cause most data quality investigations never reach.
4 min read
25
Aug
An empty oval wooden conference table surrounded by chairs in a neutral-toned boardroom, representing the room where data foundation investments are defended — or quietly abandoned.

Data foundation projects don't lose sponsorship because they fail

Executive sponsorship for data foundation projects rarely collapses because something went wrong. It collapses because the business case was framed around outcomes the foundation cannot deliver before it is complete — and nobody corrected that expectation before the first quarterly review.
4 min read
18
Aug
A dark terminal screen filled with dense lines of scrolling log output, representing the monitoring data that data teams collect but lack the incident response process to act on.

Data observability without incident response is a log nobody reads

Most data teams have bought the monitoring. They have not built the process that determines what happens when the monitor fires — and without that process, data observability tooling is a detection mechanism with no one listening.
4 min read
11
Aug
A grayscale close-up of a precision measurement compass in sharp detail, representing the quality thresholds that data platforms run on when they are defined rather than inherited.

Data quality is not an engineering problem

Most data quality problems are not engineering failures. They are quality decisions nobody made — thresholds inherited by default, definitions that were never agreed, policies that exist only as institutional habit.
4 min read