Data Engineering · Cardiff
Data Engineering in Cardiff
Building and running the data infrastructure a Cardiff organisation's reporting and AI work depends on. It is the least visible part of any data programme and the part that determines whether the rest survives — analysts and models are only as reliable as the pipelines feeding them.
Why this comes up
The problem
Analysts spend most of their time collecting and cleaning data rather than analysing it. Every new question means another manual extract, and the same cleaning gets redone each time.
What you get
What we deliver
- Ingestion from your source systems on a schedule, monitored and alerting
- A transformation layer in version control, tested rather than run by hand
- Data quality tests at load, so bad data fails loudly instead of spreading
- Modelled tables analysts can use without re-deriving the same logic
- Lineage documented, so any number can be traced to its origin
- Orchestration handling dependencies and retries without someone watching
Want this scoped for your business in Cardiff?
Thirty minutes, no charge, no sales script. You leave with a written summary of what data engineering would actually involve — whether or not you use us.
Working in Cardiff
Wales
Cardiff has a significant broadcast and media sector alongside a large public-sector presence, and Welsh-language provision is a genuine requirement on public-facing work here rather than a nice-to-have.
Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option.
Sectors we work with in Cardiff
- Media & Broadcasting
- Financial Services
- Public Sector
- Higher Education
- Sport
What we work with
Technologies and platforms
- Python
- dbt
- Airflow
- SQL
- BigQuery
Who we work with
Industries we serve
- Retail
- Financial services
- Manufacturing
- Healthcare
- Energy and utilities
Why us
Why Cardiff businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in Cardiff
Looking for the full picture? See our Data Engineering services, everything we do in Cardiff or browse everything we do.
Data Engineering in Cardiff — common questions
- How is this different from ETL work?
- ETL is the movement of data; engineering covers the whole platform — orchestration, testing, modelling, lineage and monitoring. Pipelines that move data correctly but cannot be tested or traced still leave you unable to trust the output.
- Why do our analysts spend so long on data preparation?
- Because the cleaning has not been done once, upstream. When each analyst prepares the same source themselves, the effort is repeated and their definitions diverge — which is also why two analyses of the same thing disagree.
- What do data quality tests actually catch?
- Nulls where values are required, duplicate keys, referential breaks, and volumes outside expected ranges. Most are simple assertions, and running them at load turns silent corruption into a visible failure — which is the whole point.
- Do we need this before doing AI work?
- Largely yes. Retrieval systems and models are downstream of data quality, and an AI project built on unreliable pipelines fails in ways that look like model problems. The unglamorous work usually determines whether the visible work succeeds.
- Do you work with businesses across Cardiff?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including Cardiff and the surrounding Cardiff area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of Cardiff businesses do you usually work with?
- Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option. Beyond that we work across Media & Broadcasting, Financial Services, Public Sector, Higher Education and Sport.
- Do you cover the areas around Cardiff?
- Yes — we work throughout Wales, including Bristol, Swansea. Cardiff is an urban area of roughly 490,000+, and we take on work across the wider Cardiff region rather than the city boundary alone.
Talk to us about Data Engineering in Cardiff
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise