Oleksandr Zozulya

Google

Oct. 2018 - May. 2023

Software Engineer

• Various projects withing Google Assistant.

Zalando

Sep. 2016 - Sep. 2018

Research Engineer

• Implementation of the end-to-end machine learning system for personalzaion of Zalando’s homepage.

3T labs

Aug 2015 - Jul. 2016

Software Engineer

• Development of the market leading graphical user interface for MongoDB database.

Pixformance

Aug 2013 - Jul. 2015

Software Engineer

• Development of award winning automated personal fitness training experience based on Kinect.

EPFL

Jan 2012 - Mar 2013

Postdoctoral Research Engineer

• Research and implementation of algorithms in machine learning, natural language processing, using semantic databases for ScienceWISE.info project.

Crystalix GmbH

Feb 2011 - Jan 2012

Research Engineer

• Research and development of algorithms for 3D stereo-reconstruction of human faces.

Institute of theoretical physcis, University of Amsterdam

Sep. 2005 - Sep. 2009

PhD researecher

• teaching assistnat in Quantum Mechenics and Statistical Mechanics courses.

• researh in theoretical physics, primarily in quantum entanglement and topological order.

Bogolyubov Institute for Theoretical Physics

Sep. 2001 - Aug. 2003

Research engineer, part-time

• Research in high energy partricle physics, statistical description of nucleus-nucleus collisions.

Ukrainian Physics and Mathematics Lyceum

Sep. 1999 - Jun. 2003

Physics teacher, part-time

• Teaching high-school olympiad level physics; member of the jury of the Ukrainian Physics Olympiad.

University of Amsterdam, PhD in Theoretical Phyiscs.

Sep. 2005 - Sep. 2009

• Thesis title - Entanglement and Order in Many-Body Physics.

• Exploration of the role of entanglement measures to charaterize order in varous system, especially with topological order.

Utrecht University, Masters in Theoretical Physics.

Feb. 2004 - Jun. 2006

• {“Thesis title”=>nil}

GPA: 8.5/10

National Kyiv University, Bachelor in Physics

Sep. 1999 - Jun. 2003

GPA: 4.9/5.0

• Development QR code based login system

• Automatic camera calibration based on SIFT points

• Video loop generation based on frame similarity detection

• Technology Used: C++, Python, OpenCV, Direct2D, Kinect, C#

• Creation, deployment and maintenaace of the frist ML models in production to personalize Zalando’s homepage.

• Running and evaluating A/B tests to measure impact of ML models on user metrics.

• Model selection,feature engineering and significance testing.

• Technology Used: Spark, Scala, AWS EMR, Python, Sckit-learn, Pandas, DynamoDB, Docker

• Rollout of personalized content ranking on Nest Hub devices.

• Development and deployment of ML based ranking of correction suggestions in Google Assistant querries.

• Data piplines to create corpus and monitoring metrics for on-device speech recognition personalization.

• [1] M. I. Gorenstein, M. Gaździcki, O. S. Zozulya, “Fluctuations of strangeness and deconfinement phase transition in nucleus–nucleus collisions,” Physics Letters B, vol. 585, no. 3-4, pp. 237–242, 2004.

• [2] V. V. Begun, M. Gaździcki, M. I. Gorenstein, O. S. Zozulya, “Particle number fluctuations in a canonical ensemble,” Physical Review C, vol. 70, no. 3, p. 034901, 2004.

• [3] V. V. Begun, M. I. Gorenstein, A. P. Kostyuk, O. S. Zozulya, “Particle number fluctuations in the microcanonical ensemble,” Physical Review C, vol. 71, no. 5, p. 054904, 2005.

• [4] V. V. Begun, M. I. Gorenstein, O. S. Zozulya, “Fluctuations in the canonical ensemble,” Physical Review C, vol. 72, no. 1, p. 014902, 2005.

• [5] A. Keränen, F. Becattini, V. V. Begun, M. I. Gorenstein, O. S. Zozulya, “Particle number fluctuations in statistical model with exact charge conservation laws,” Journal of Physics G: Nuclear and Particle Physics, vol. 31, no. 6, p. S1095, 2005.

• [6] V. V. Begun, M. I. Gorenstein, M. Hauer, V. P. Konchakovski, O. S. Zozulya, “Multiplicity fluctuations in hadron-resonance gas,” Physical Review C, vol. 74, no. 4, p. 044903, 2006.

• [7] V. V. Begun, M. I. Gorenstein, A. P. Kostyuk, O. S. Zozulya, “Quantum gases in the grand microcanonical ensemble near the thermodynamic limit,” Journal of Physics G: Nuclear and Particle Physics, vol. 32, no. 7, p. 935, 2006.

• [8] M. Haque, O. S. Zozulya, K. Schoutens, “Entanglement entropy in fermionic Laughlin states,” Physical Review Letters, vol. 98, no. 6, p. 060401, 2007.

• [9] O. S. Zozulya, M. Haque, K. Schoutens, E. H. Rezayi, “Bipartite entanglement entropy in fractional quantum Hall states,” Physical Review B, vol. 76, no. 12, p. 125310, 2007.

• [10] O. S. Zozulya, M. Haque, K. Schoutens, “Particle partitioning entanglement in itinerant many-particle systems,” Physical Review A, vol. 78, no. 4, p. 042326, 2008.

• [11] O. S. Zozulya, M. Haque, N. Regnault, “Entanglement signatures of quantum Hall phase transitions,” Physical Review B, vol. 79, no. 4, p. 045409, 2009.

• [12] M. Haque, O. S. Zozulya, K. Schoutens, “Entanglement between particle partitions in itinerant many-particle states,” Journal of Physics A: Mathematical and Theoretical, vol. 42, no. 50, p. 504012, 2009.

• A. Boyarsky, O. Ruchayskiy, Z. Yang, O. Zozulya, M. Charlaganov, P. De Los Rios, “From scientific papers to the scientific ontology: dynamical clustering of heterogeneous graphs and ontology crowdsourcing.” 2nd Workshop on Discovering Meaning on the go in Large, Heterogenous Data, ISWC, 2012.

• O. S. Zozulya, “Entanglement and order in many-body systems,” PhD dissertation, Universiteit van Amsterdam, 2011.

FIBO Innovation Award

Mar 2014

As a part of the Pixformance team. More details.

Gold Medal

Jul 1999

International Physics Olympiad