Data Engineering
Designing and building robust data pipelines, database integrations and migration flows.
Mahieu IT Consulting B.V.
Complex IT.
Made simple.
Senior data engineering, ClickHouse analytics platforms, smart web apps and software products. From legacy systems to modern platforms: clear thinking, solid delivery and technology that actually works.
What I do
Senior hands-on IT consulting for organisations that need experience, structure and reliable execution — from data platforms to practical web applications.
ClickHouse & Analytics
Fast analytical databases, event-style data models, dashboards and operational analytics platforms.
Smart Web Apps
Practical web applications that combine data, APIs, automation and clear user workflows.
Data Warehousing & BI
Structuring data for reporting, analytics and long-term maintainability.
Software & APIs
Building applications, APIs, dashboards and prototypes from idea to production.
Legacy Modernisation
Translating older systems and complex logic into clearer, modern and maintainable solutions.
Knowledge Management
Alongside our core Data & IT consultancy, we provide senior Knowledge Management expertise for organisations looking to improve how knowledge is captured, structured, governed and made accessible.
Services include enterprise knowledge governance, knowledge architecture and taxonomy, metadata and information design, content governance, search and discoverability, and AI-enabled knowledge solutions.
The capability extends beyond Knowledge Management alone. We can also support broader interim and project-based roles where programme delivery, organisational knowledge, digital platforms and stakeholder coordination come together. This includes programme and project delivery, knowledge and content leadership, digital product and platform coordination, governance and implementation, and cross-functional stakeholder management.
Support can also cover workshops, learning sessions, stakeholder engagement and event delivery — particularly in roles that sit between business, programmes, content and technology, and need someone who can bring structure to a complex environment and move initiatives from concept through implementation and adoption.
Knowledge Governance
Programme Delivery
Project Coordination
Digital Platforms
Stakeholder Management
Workshops & Events
AI-Enabled Knowledge
Available for project-based and interim engagements, either remotely or embedded within client teams.
Products & experiments
itzsoweezee is also a home for independent product ideas in data, automation, geospatial intelligence, smart web apps and practical digital platforms.
Current focus areas include ClickHouse-based analytics platforms, data automation, remote sensing, wildlife technology, smart web apps and business tools.
The approach is simple: start practical, build solid, improve continuously.
About
itzsoweezee is the trading brand of Mahieu IT Consulting B.V.
Hi, I'm Edward Mahieu. I help organisations modernise data platforms, migrate legacy systems and build practical software solutions that are clear, maintainable and useful in the real world.
With more than 20 years of experience as a senior data engineer and cloud integration consultant, my focus is on data integration, data warehousing, migration projects, software delivery and making complex technology easier to use.
The name says it all: IT does not have to be overcomplicated. Done well, itzsoweezee.
20+ years Data Engineering
Snowflake migrations
Oracle & SQL Server
Informatica PowerCenter
ClickHouse platforms
Telecom, Finance, Retail & Utilities