Data architecture
Platform and integration architecture, technical assessment, relational modelling, ownership boundaries and pragmatic modernisation.
Data architect · engineer · independent consultant
I design, improve and troubleshoot enterprise data systems — especially where architecture, ETL, SQL Server and integration have to keep working long after the first release.
Technical focus
My strongest work sits between architecture and implementation: understanding how data moves through an enterprise environment, choosing boundaries that remain maintainable, and going deep enough into the implementation to verify that the design actually works.
Platform and integration architecture, technical assessment, relational modelling, ownership boundaries and pragmatic modernisation.
SSIS, source-to-target design, restartability, operational visibility, reconciliation and reliable movement between heterogeneous systems.
T-SQL, database design, indexing, execution plans, Query Store, Extended Events and production performance analysis.
Operational data stores, loading layers, historical processing, marts and the relational foundations supporting reporting and analytics.
Finding the architectural, modelling and query-level causes behind slow systems instead of treating symptoms in isolation.
Implementation where it reduces uncertainty: database code, integration flows, deployment paths, troubleshooting and production fixes.
Working approach
Newer is not automatically better. I prefer architecture that is proportionate to the problem, respects useful existing systems and makes trade-offs explicit.
Legacy systems often contain years of business knowledge. Replace what creates real cost or risk, not what merely looks old.
Failures should be visible, diagnosable and recoverable. Silent continuation is usually worse than an explicit stop.
Design decisions are stronger when they are tested against actual data volumes, failure modes, operations and deployment constraints.
Cloud-native, distributed, NoSQL or AI components are useful when the requirement justifies them — not as default architecture decoration.
Selected experience
The chronology below is intentionally selective. Titles and relationship wording follow publicly supportable professional-history evidence rather than being normalised into a more impressive marketing version.
Database Specialist
Current work in a pension-system data environment.
Database Designer / Senior ETL Developer
ETL architecture, SSIS, SQL Server, T-SQL, operational data stores, datamarts, performance work and SQL Server migration coordination.
ETL Developer
ETL development in an insurance environment.
Software Developer · DBA / Business Intelligence Consultant
Application and database development followed by BI architecture, 3NF data modelling, SSIS integration, data warehouse advisory and performance work.
Consultancy: support, training & development
Consulting assignments in multilingual institutional environments, including database/application development alongside support and training responsibilities.
Earlier work also includes UNIZO and other software, infrastructure and database roles. This page is a professional profile, not a complete CV.
Writing & public work
I write about SQL Server, data modelling, ETL, architecture and the failure modes that appear when application and data design drift apart. I prefer a concrete technical observation over posting merely to maintain a publishing schedule.
Longer-form notes and practical observations on data systems and software engineering.
Read on MediumErwin & EVH Consult
I founded EVH Consult in 2012 and work through it as an independent consultant. This site is my professional profile: experience, technical focus, writing and public identities.
EVH Consult is the consulting/business presence. It owns service descriptions, project enquiries and the corporate identity. AI/R&D and Ada have their own distinct public properties as well.
Elsewhere
These are the deliberate public/professional identities linked from this profile. CryptoWinne remains a separate identity and is intentionally not included here.