Data architect · engineer · independent consultant

Erwin Vanhecke

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.

ArchitectureAssessment, design and technical direction
IntegrationETL, SSIS and enterprise data flows
Relational platformsSQL Server, T-SQL and data modelling
Production systemsPerformance, reliability and maintainability

Technical focus

Data systems that have to remain understandable.

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.

01

Data architecture

Platform and integration architecture, technical assessment, relational modelling, ownership boundaries and pragmatic modernisation.

03

SQL Server

T-SQL, database design, indexing, execution plans, Query Store, Extended Events and production performance analysis.

04

Data warehouse environments

Operational data stores, loading layers, historical processing, marts and the relational foundations supporting reporting and analytics.

06

Hands-on engineering

Implementation where it reduces uncertainty: database code, integration flows, deployment paths, troubleshooting and production fixes.

Working approach

Pragmatic by design.

Newer is not automatically better. I prefer architecture that is proportionate to the problem, respects useful existing systems and makes trade-offs explicit.

01

Understand before replacing

Legacy systems often contain years of business knowledge. Replace what creates real cost or risk, not what merely looks old.

02

Design for failure

Failures should be visible, diagnosable and recoverable. Silent continuation is usually worse than an explicit stop.

03

Keep architecture close to implementation

Design decisions are stronger when they are tested against actual data volumes, failure modes, operations and deployment constraints.

04

Add complexity only when it earns its place

Cloud-native, distributed, NoSQL or AI components are useful when the requirement justifies them — not as default architecture decoration.

Selected experience

Long-running systems in real organisations.

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.

Freelance

Federale Pensioendienst / Service fédéral des Pensions

Database Specialist

Current work in a pension-system data environment.

Freelance

AW Europe / AISIN Europe

Database Designer / Senior ETL Developer

ETL architecture, SSIS, SQL Server, T-SQL, operational data stores, datamarts, performance work and SQL Server migration coordination.

Freelance

DKV Belgium

ETL Developer

ETL development in an insurance environment.

Enterprise banking

BNP Paribas Fortis

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 assignments

European Commission & European Parliament

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

Technical notes when there is something worth saying.

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.

Medium

Technical articles

Longer-form notes and practical observations on data systems and software engineering.

Read on Medium

Erwin & EVH Consult

The person and the consulting practice are related, not interchangeable.

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

Public profiles.

These are the deliberate public/professional identities linked from this profile. CryptoWinne remains a separate identity and is intentionally not included here.