Gert Nelissen

Looking at the bigger picture in a systemic way, Gert aims to have a sustainable end-to-end impact. With a growth mindset, he resolves inefficiencies in organisations, processes, data and IT architectures, so that full potential can be unlocked.

Recent Posts

Putting the learning organisation into practice: the Crypto Currency Competition

By Gert Nelissen on 16 November 2018

The world we live in today is highly competitive. Competitors lurk around every corner, customers become increasingly demanding and new technologies are able to devour your existing business model. Knowledge, and - even more importantly - sharing it, are essential in such times. Organisations and people who learn faster and more efficiently take the pole position.

Equally within AE the acquisition and sharing of knowledge is important. There are several different ways to do this. In this blog post, we introduce you into how we creatively tackled this in our financial service community via an in-house crypto competition.

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Ingesting data with Spark using a custom Hadoop FileInputFormat

By Gert Nelissen on 24 March 2016

Together with a large organization, we’re building a platform that presents company data to its data scientists so they can use it to develop innovative applications.

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How to use Composite Indexes

By Gert Nelissen on 13 June 2014

You might be a developer like me. You might also wander around in the deep and dark layers of relational database systems. You might've been face to face with this thing some call a composite index.

Why are you talking in this denigrating tone?

Because in the fairly limited experience I have, I have seen some grave cases of index abuse. Of them, badly designed composite indexes - or multi-column indexes - were always the most aggravating ones.

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