Dmitry Kisler, M.Sc.
Data Warehouse Team Lead at Spark Networks SE



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+49 173 522 8056

Bramfelder Weg 49B, 22159 Hamburg, DE


Work Experience

09.2018 - ongoing

Data Warehouse Team Lead
Spark Networks SE (Berlin, DE)

04.2018 - 09.2018

Data Scientist
GoodGame Studios (Hamburg, DE)

As a part of the Strategic Projects and Data Science teams, I provide my ML and analytical skills for building an A.I. solution for the company marketing workflow and users conversion optimization.


✓ Data Science team and projects coordination

✓ ML algorithms development

✓ Definition and implementation of the new sets of KPIs for more precise user LTV evaluation

✓ Storytelling: clear analysis results exposure to stakeholders

✓ Marketing, monetization and development teams support towards data driven decisions



• Development of an ML solution to predict LTV of marketing campaigns and marketing-acquired users

• Development of a recommendation engine to improve marketing managers workflow for steering marketing campaigns


Technologies: R, Python, no-/SQL, Tableau, bash scripting, Apache Hadoop, AWS, JupytherLab, RStudio Server, Shiny Server

11.2017 - 09.2018

Data Warehouse Manager
GoodGame Studios (Hamburg, DE)

As a reinforcement of the data warehouse team, I maintain, develop and refactor the DWH data pipelines handling jobs/logic in order to adjust them to the needs of the BI, Marketing, Monetization and BizDev teams as well as handle DWH tasks on-request.



• Development of the new Marketing back-end DWH layout


Technologies: bash scripting, Apache Hadoop, Cloudera, RabbitMQ, Python, SQL (HPE Vertica, MySQL), java

08.2017 - 04.2018

Data Analyst
GoodGame Studios (Hamburg, DE)

As a part of the Strategic Projects team, I supply it with analytics expertise for data driven solutions towards the company products optimization in terms of major BI/Tech KPIs (e.g. Login2Reg and Reg2Pay).


✓ Supporting Monetization, Marketing and Development teams in terms of numerous projects

✓ Development of the clients retention funnel model based on the clients actions tracking KPIs

✓ Development, maintenance and ownership of numerous BI and technical dashboards (Tableau, R + shiny)

✓ Storytelling: clear analysis results exposure to stakeholders

✓ Ad-hoc analysis

✓ A/B tests analysis



• Development of the client accessibility tracking dashboard (in cooperation with Monetization team)

• Development of the email campaigns evaluation dashboard (in cooperation with CRM/Marketing team)

• Development of the technical KPIs monitoring dashboard to support the products servers migration

• Evaluation of existing tracking system for its successful integration into upcoming products


Technologies: R, Python, SQL (HPE Vertica), Tableau, bash scripting, Apache Hadoop

11.2016 - 08.2017

Data Scientist
Maritime Data Systems GmbH (Hamburg, DE)

✓ Data aggregation, consolidation and analysis for (R, PostgreSQL, AWS)
✓ R algorithms development for vessels AIS data analysis:
• Studies of the vessels reliability under different sea state conditions (ts data mining + clustering)
• Vessels docking forecast, events building (e.g. vessels visits into shipyard area)
✓ Building the ML based docking recommendation system
✓ Restful APIs development
✓ Development of a novel method for ships hydrodynamics calculation based on vessels AIS data analysis (R&D)
✓ Co-ordination of the outsource company work

01.2015 - 01.2017

Deutsches Elektronen-Synchrotron (Hamburg, DE)

DESY: Si detectors R&D for the future CMS Tracker in terms of LHC Phase II Upgrade. Experimental studies of the properties of irradiated and non-irradiated Si sensors of different types. Development and integration of a part of the analysis framework called Eutelescope.
CERN: CMS Tracker off-line data quality monitoring (DQM) and management of the off-line DQM team. CMS Tracker operation management.


Major skills:
✓ Data acquisition, storage and handling
✓ Big data handling (several hundreds of samples, ~1Gb each sample )
✓ Data mining
✓ Programming
✓ Physics processes simulation
✓ Reports writing
✓ Results presentation in front of the team
✓ Ion detection systems
✓ Precise electronics
✓ 3D design
✓ Strong interpersonal skills
✓ Co-supervision of students
✓ Frequent work trips
✓ Availability 24/7 on shift basis

09.2013 - 12.2014

CERN (Geneva, CH)

Leading projects related to the development of the ion beam diagnostic detection systems for studying exotic nuclides using the Penning-trap mass spectrometer ISOLTRAP at ISOLDE-CERN.


Major skills:
✓ Data acquisition, storage and handling
✓ Physics processes simulation
✓ Reports writing
✓ Results presentation in front of the team and on conferences
✓ Ion detection systems
✓ Ultra-high vacuum
✓ Cryogenic systems
✓ Precise electronics
✓ Laser system
✓ 3D design
✓ Strong interpersonal skills
✓ Co-supervision of students


Phys. Rev. Lett. 115, 232501 (2015)Phys. Rev. C 96, 014310 (2017)


09.2012 - 10.2013

Université Paris-Sud XI (Orsay, Paris, FR)
Master of Science Degree in Research in Science, Technology and Health in Fundamental Physics specialized in Nuclei, Particles, Astroparticles and Cosmology

09.2011 - 08.2012

École Polytechnique (Palaiseau, Paris, FR)
Master of Science M1 in Nanotechnologies, Laser optics, Non-linear optics

09.2007 - 07.2011

Novosibirsk State University (Novosibirsk, RU)
Bachelor Degree in Plasma and Nuclear Physics, Mathematical Methods in Physics and Real Life, Statistics