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$30 USD / hour
Flag of NETHERLANDS
amsterdam, netherlands
$30 USD / hour
It's currently 7:04 AM here
Joined June 11, 2015
0 Recommendations

Sjoerd D.

@desjoerdhaan

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$30 USD / hour
Flag of NETHERLANDS
amsterdam, netherlands
$30 USD / hour
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Data professional

I develop data solutions for clients. I am specialised at - Web scraping - Predictive algorithms - Data visualizations for the web - Data driven web applications I present the client a rudimentary solution in an early stage. After feedback of the client, I improve the prototype in an incremental fashion. Feedback of the customer is crucial in this cycle.

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Experience

Quantitative researcher

Independent View
Dec 2014 - Present
Developing trading strategies for a futures Hedgefund. Developing dashboard that visualise the current state and the history of the investment strategies. Based on Python/flask, angularJS and D3.

Predictive model builder

Datameister
I developed price recommendation algorithms for hotel rooms. My responsibilities were ● Designing database scheme (MySQL) ● Writing automated reports (knitR) ● Explanatory data analysis (R) ● Implementing statistical methods in the database (SQL) ● Creating predictive models for the hotel market (Sci-kit learn) ● Creating price optimization algorithms (Sci-kit)

Education

PhD in physics

Rijksuniversiteit Groningen, Netherlands 2010 - 2014
(4 years)

MSc in Mathematics

University of Cambridge, United Kingdom 2009 - 2010
(1 year)

Publications

Zwei-Dreibein Gravity: A Two-Frame-Field Model of 3D Massive Gravity

Phys.Rev.Lett. 111 (2013) 11, 111102, Phys.Rev.Lett. 111 (2013) 25, 259902
I wrote this article during my PhD in theoretical physics. It introduces a new and elegant model for gravity in three spacetime dimensions. My other articles can be found here http://inspirehep.net/search?ln=en&p=sjoerd+de+haan&of=hb&action_search=Search&sf=earliestdate&so=d

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