Lead Data Engineer
Current
May 2023 - Present
AeroLeads people directory · profile
Wietsche Calitz Email & Phone Number
Freelance Data & ML Engineer
at
Dataminded
1 work email found
@realimpactanalytics.com
LinkedIn matched
✓ Verified July 2026
4 data sources
Profile completeness 100%
Current company
Role
Freelance Data & ML Engineer
Location
City of Cape Town, Western Cape, South Africa
Company size
Who is Wietsche Calitz? Overview
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Quick answer
Wietsche Calitz is listed as Freelance Data & ML Engineer at Dataminded, a with 14 employees, based in City of Cape Town, Western Cape, South Africa. AeroLeads shows a work email signal at realimpactanalytics.com and a matched LinkedIn profile for Wietsche Calitz.
Wietsche Calitz previously worked as Lead Data Engineer at Dataminded and Head of Prediction and Portfolio Services at Jumo. Wietsche Calitz holds Bachelor Of Engineering (B.Eng.), Electrical And Electronics Engineering from University Of Stellenbosch.
Company email context
Email format at Dataminded
This section adds company-level context without repeating Wietsche Calitz's masked contact details.
{first}.{last}@realimpactanalytics.com
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AeroLeads found 1 current-domain work email signal for Wietsche Calitz. Compare company email patterns before reaching out.
Profile bio
About Wietsche Calitz
Wietsche Calitz is a Freelance Data & ML Engineer at Dataminded. They possess expertise in business intelligence, machine learning, big data, database design, data warehousing and 21 more skills.
Listed skills include Business Intelligence, Machine Learning, Big Data, Database Design, and 22 others.
Current workplace
Wietsche Calitz's current company
Company context helps verify the profile and gives searchers a useful next step.
Dataminded
11 roles · 22 years
Wietsche Calitz work experience
A career timeline built from the work history available for this profile.
Head Of Prediction And Portfolio Services
Jul 2022 - Feb 2023
Head Of Ml Engineering
May 2020 - Jul 2022
Head Of Data Engineering
Responsibilities: * Aligning a global team of approximately 10 people (Engineers and Product Owners) to company objectives * Prioritising of work with stakeholders* Building the team though hiring* Goal setting and performance management Highlights:* Learning to delegate and empower direct reports with appropriate autonomy* Learning how to deal with organisationals change as a manager* Keeping team unity and building trust over 3 geographical locations (South Africa, Kenya and U.K.)* Implementing Kanban, gaining 4X efficiency through limiting Work in Progress
Apr 2019 - May 2020
Head Data Architect
Responsibilities: * Aligning Data Warehouse and Data Lake systems with company objectives* Maintain data systems roadmap for scaling with the business* Technical leadership to junior Data Engineers* Create and maintain Data Models per business domain Highlights* Implementing a petabyte-scale data lake in AWS* Implementating a federated query layer over Data Warehouse and Data Lake* Implementating a realtime credit score predictor (ML inference on a Kinesis stream)* Driving standardisation of Mobile Money wallet data * Learning how cross-border data transfer should be managed given regulations and opinions of stakeholders
Jan 2017 - Mar 2019
Data Architect
Responsibilities:* Designing Business Intelligence platform integrated into B2B Applications * Coaching of Engineers on BI systems * Technical support during client integrations * Pre-sales support to Business Development teamHighlights* Introducing Kimball Star schemas to RIAKTR and leading implementation though systematic refactoring* Reducing license costs by bringing Talend on board as open source ETL tool* Part of a pre-sales team that secured business with DSTV in South Africa
Dec 2015 - Dec 2016
Business Intelligence Architect
Busii - Business Intelligence Integrators
Business Intelligence Architecture consulting to various clients.
May 2008 - Nov 2015
Data Architect (Consulting)
2014 - 2015
~1 yr
Business Intelligence Architect (Consulting)
2008 - Apr 2013
Business Intelligence Specialist
Global Vision It
Business Intelligence Architecture and Developement in a CRM environment.
2006 - 2008
~2 yrs
2005 - 2006
~1 yr
Team & coworkers
Colleagues at Dataminded
Other employees you can reach at dataminded.be. View company contacts for 14 employees →
WB
Wim Berchmans
Colleague at DatamindedBrussels Metropolitan Area, Belgium
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MD
Michiel De Muynck
Colleague at DatamindedDeinze, Flemish Region, Belgium
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JT
Johannes Teunissen
Colleague at DatamindedLeuven, Flemish Region, Belgium
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SI
Sofia Iamskaia
Colleague at DatamindedBrussels, Brussels Region, Belgium
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DD
Dylan Darby
Colleague at DatamindedBrussels Metropolitan Area, Belgium
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JM
Juan Macías
Colleague at DatamindedBrussels, Brussels Region, Belgium
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WG
Wouter Gins
Colleague at DatamindedLeuven, Flemish Region, Belgium
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SL
Siyan Luo
Colleague at DatamindedBrussels, Brussels Region, Belgium
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PC
Pierre Crochelet
Colleague at DatamindedBrussels, Brussels Region, Belgium
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TJ
Tarik Jamoulle
Colleague at DatamindedBrussels Metropolitan Area, Belgium
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Wim Berchmans
Colleague at DatamindedBrussels Metropolitan Area, Belgium
View →
MD
Michiel De Muynck
Colleague at DatamindedDeinze, Flemish Region, Belgium
View →
JT
Johannes Teunissen
Colleague at DatamindedLeuven, Flemish Region, Belgium
View →
SI
Sofia Iamskaia
Colleague at DatamindedBrussels, Brussels Region, Belgium
View →
DD
Dylan Darby
Colleague at DatamindedBrussels Metropolitan Area, Belgium
View →
JM
Juan Macías
Colleague at DatamindedBrussels, Brussels Region, Belgium
View →
WG
Wouter Gins
Colleague at DatamindedLeuven, Flemish Region, Belgium
View →
SL
Siyan Luo
Colleague at DatamindedBrussels, Brussels Region, Belgium
View →
PC
Pierre Crochelet
Colleague at DatamindedBrussels, Brussels Region, Belgium
View →
TJ
Tarik Jamoulle
Colleague at DatamindedBrussels Metropolitan Area, Belgium
View →
2 education records
Wietsche Calitz education
Bachelor Of Engineering (B.Eng.), Electrical And Electronics Engineering
Master Of Engineering (M.Eng.), Digital Signal Processing
FAQ
Frequently asked questions about Wietsche Calitz
Quick answers generated from the profile data available on this page.
What company does Wietsche Calitz work for?
Wietsche Calitz works for Dataminded.
What is Wietsche Calitz's role at Dataminded?
Wietsche Calitz is listed as Freelance Data & ML Engineer at Dataminded.
What is Wietsche Calitz's email address?
AeroLeads has found 1 work email signal at @realimpactanalytics.com for Wietsche Calitz at Dataminded.
Where is Wietsche Calitz based?
Wietsche Calitz is based in City of Cape Town, Western Cape, South Africa while working with Dataminded.
What companies has Wietsche Calitz worked for?
Wietsche Calitz has worked for Dataminded, Jumo, Jumo.World, Real Impact Analytics, and Busii - Business Intelligence Integrators.
Who are Wietsche Calitz's colleagues at Dataminded?
Wietsche Calitz's colleagues at Dataminded include Wim Berchmans, Michiel De Muynck, Johannes Teunissen, Sofia Iamskaia, and Dylan Darby.
How can I contact Wietsche Calitz?
You can use AeroLeads to view verified contact signals for Wietsche Calitz at Dataminded, including work email, phone, and LinkedIn data when available.
What schools did Wietsche Calitz attend?
Wietsche Calitz holds Bachelor Of Engineering (B.Eng.), Electrical And Electronics Engineering from University Of Stellenbosch.
What skills is Wietsche Calitz known for?
Wietsche Calitz is listed with skills including Business Intelligence, Machine Learning, Big Data, Database Design, Data Warehousing, Apache Spark, Solution Architecture, and Databases.
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