VITSAM

Data analytics consultancy · Gent

From raw source to a decision you can trust.

I design and build the full data chain: the warehouse, the models, the dashboards and the project that ties them together. One person who understands every layer, so nothing gets lost between them.

SOURCES MODELS · DBT DASHBOARDS erp crm billing excel files dim_customer fct_invoices mart_finance Qlik Sense Power BI Tableau
extractmodel & testvisualise

Services

Every layer of the data stack, under one roof.

Bring me in for one piece, or for the whole chain. Either way you get someone who knows what happens upstream and downstream of the part you asked for.

Data warehousing & modelling

A warehouse that people can actually query. Clean dimensional models, tested transformations and documentation that stays in sync with the code.

dbtSQLKimballRedshift

Dashboards & self-service BI

Reports that answer the question the business is asking. I build in the tool you already own and set it up so your team can extend it without me.

Qlik SensePower BITableau

Data governance & lineage

Know where every number comes from. Ownership, definitions and lineage from source table to dashboard tile, so a changed field never breaks a report unnoticed.

lineagedata qualitydefinitions

Project & backlog management

Data projects fail on scope more often than on code. I run the backlog, translate business needs into stories and keep delivery predictable.

backlogagile deliveryteam lead

AI & MCP

Put AI to work on your own data.

AI assistants are only as good as the data they can reach. With the Model Context Protocol (MCP), assistants such as Claude or Copilot can query your warehouse, read your dbt documentation and use your BI definitions, safely and with the right permissions.

I connect the two worlds: a solid data foundation and AI that can use it.

MCPLLMsAI assistantsagents
  • MCP servers for your data

    I set up and build MCP servers that expose your warehouse, models and business definitions to AI assistants, with access control and audit in place.

  • AI on a governed foundation

    Clear definitions and lineage are what make AI answers correct. I make sure the assistant uses the same "revenue" as your dashboards.

  • Practical AI in the data team

    Generated documentation, SQL and dbt assistance, data quality checks and automated workflows that save your team real hours.

  • Advice and first steps

    Not sure where AI fits? We start with one use case, test it on your own data and decide together what is worth scaling.

Toolkit

Tools I work with every week.

No preferred vendor. I pick the tool that fits your landscape and your team's skills.

Transformationdbt, SQL, incremental models, tests and docs
VisualisationQlik Sense, Power BI, Tableau
WarehouseAmazon Redshift, SQL Server, cloud data platforms
IntegrationERP and CRM replication, API and file ingestion
AIMCP servers, AI assistants, LLM-driven automation
DeliveryBacklog management, functional analysis, handovers
-- models/marts/consultant.sql
select
    'Jan'              as consultant,
    'data everything'  as role,
    skill,
    years_hands_on
from {{ ref('vitsam_skills') }}
where skill in (
    'dbt', 'sql',
    'qlik', 'power_bi', 'tableau',
    'data_modelling',
    'mcp', 'ai_integration',
    'project_management'
)
order by business_impact desc

Approach

How a project runs.

  1. Understand

    We start with the decisions you need to make, then trace back to the data that supports them.

  2. Model

    I design the data model and agree on definitions, so "revenue" means the same thing everywhere.

  3. Build

    Pipelines, dbt models and dashboards, delivered in short iterations you can review along the way.

  4. Hand over

    Documentation, lineage and training, so your team owns the result when I step back.

About

Hi, I'm Jan.

I'm a data analytics consultant based in Gent. I like to call myself a data everything guy: I've designed warehouse architectures, written the SQL, built the dashboards and led the teams that deliver them. Today that also means connecting AI to the data, so it gives answers you can rely on.

That range is the point. Most data problems sit between layers, where the model doesn't match the report or the backlog doesn't match the business. I work across all of them.

analytics architect→project lead→team lead

Contact

Got a data question that needs an answer?

Send a short note about your situation. I'll reply within two working days.

jan@vitsam.be +32 488 43 49 72
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