Welcome to Sergey's freelance profile!

Malt gives you access to the best freelancers for your projects. Contact Sergey to discuss your project or search for other similar profiles on Malt.

Sergey Mastitsky

Experienced Data Scientist

Remote from City of London

  • 51.5073
  • -0.127647
Propose a project The project will only begin when you accept Sergey's quote.
Propose a project The project will only begin when you accept Sergey's quote.

Location and geographical scope

City of London, United Kingdom
Remote only
Works remotely most of the time


Project length
Would prefer:
  • ≤ 1 week
  • ≤ 1 month
Would prefer avoiding:
  • Between 3-6 months
  • ≥ 6 months
Business sector
  • Arts & Crafts
  • Automobile
  • Banking & Insurance
  • Cosmetics & Fashion
  • Defense & Military
+21 autres





Skills (22)

Sergey in a few words

Trained to a PhD level, I have 20 years of experience in academic and industrial
sectors, where I used Statistics and cutting-edge Machine Learning to create new knowledge and deliver measurable business outcomes. My colleagues have repeatedly acknowledged my expertise in a wide range of modern data analysis and manipulation tools (e.g. R, Python and SQL), ability to clearly explain technical concepts to a layman, high attention to detail, friendliness and professional manner. I've also authored 40+ peer-reviewed scientific articles (including a paper in Nature) and 5 books on data analysis and visualisation.

As a Data Science consultant and freelancer, I provider a variety of services, including but not limited to:
- Deep and actionable, data-driven insights into your operational processes, customers, and products;
- Accurate models for customer lifetime value and churn to power value-based
acquisition and retention campaigns;
- Predictive applications to perform planning and optimisation tasks (revenue forecasting, budget allocation, recommender systems, preventive maintenance, etc.);
- Bespoke software development for data analysis and visualisation (e.g. interactive Shiny applications, APIs, etc.);
- Personnel training and upskilling in Data Science (including introductory sessions for executives and managers, and one-to-one coaching sessions).


Belarusian State University


Assistant Professor

Minsk, Belarus

September 2004 - July 2008

- Teach Statistics and other relevant subjects to Biology students
- Conduct independent research work
- Secure funding via grant applications
- Publish research results and present them and professional meetings

Key achievements:
- Developed and delivered the following courses: “Biostatistics”, “Population Ecology”, “Bioassessment of the Quality of Environment” and “Ecological Modelling”
- Managed a group of 4 researchers and provided funding for them
- Published multiple papers in peer-reviewed academic journals
- Made presentations at numerous professional meetings and public events
lecturing research grant proposal writing paper writing teaching statistical analysis statistics ecological modelling population ecology

Great Lakes Center at Buffalo State College


Research Scientist

Buffalo, United States of America

August 2008 - October 2009

- Design and implement research projects to assess ecological impacts cased by invasive species in the Great Lakes region
- Conduct field sampling and laboratory sample processing, followed by data analysis
- Secure funding via grant applications
- Publish findings and present them at professional meetings

Key achievements:
- Research results published in a number of high-impact peer-reviewed academic journals
- Presentations made at multiple professional meetings and public events
grant proposal writing field work microscopy statistical analysis paper writing

German Cancer Research Center


Postdoctoral Researcher

Heidelberg, Germany

June 2010 - March 2012

- Analyse large multivariate datasets generated in genome-wide cancer studies in order to identify differentially expressed genes and biomarkers indicative of the disease progression
- Develop pipelines for statistical analysis of gene expression data obtained in longitudinal studies
- Publish findings and present them at professional meetings

Key achievements:
- Research results published in a number of academic papers, including a publication in Nature
- Presentations made at multiple professional meetings



Statistical Modeller

Limburgerhof, Germany

April 2012 - October 2014

External recommendations

Check out Sergey's recommendations