Summary
Overview
Work History
Education
Skills
COURSES
Timeline
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Olha Trofimova

Data Analyst
Kiev,Ukraine

Summary

Hardworking and passionate Data Analyst with strong communication skills and more than 7-year experience in data analysis, eager to help team make the right quality decisions based on data. I'm excited about the data, and motivated to learn, grow and excel. Eager to improve other people's lives and also passionate about psychology and neurobiology. Open to switching fields to Data Science

Overview

14
14
years of professional experience
2
2
Languages

Work History

Senior Data Analyst

Evo company (Prom.ua) - Ukrainian marketplace
Кiev
11.2018 - 06.2022
  • Analyzing large amounts of data to identify trends and find patterns, signals and hidden stories within data.
  • Supporting and controlling entire cycle of AB experiment: hypothesis formulation, research and calculation of necessary metrics, formulation of task for development of functionality and tracking, research and interpretation of results of A/B tests, and providing insights for improvement
  • Root-cause analysis on data-related system problems to recommend or execute corrective action
  • CRO (search for weak points, recommendations for improvement, or testing)
  • Data mining and automation of reports with Python
  • Creating and developing reports and dashboards to monitor key product metrics
  • Development of tool for competitive analysis for marketplace sellers
  • Supporting of different teams (marketing, product) with ad-hoc and in-depth analysis
  • Close cooperation with data scientists, engineers, architects, and project/product owners to understand data flow and customer needs to provide data/analysis for better decision making
  • Hiring and mentoring new analysts for other teams in company
  • Minor experience in data exploration using ml algorithms: regression models, tree-based models, multi-dimensional clusterization

Projects

Building an inner a/b testing platform from scratch

  • managing all process
  • design of ETL, data architecture of platform
  • creating scripts and functions for calculation, aggregation, clining data
  • creating complex dashboards both for quick and clear decision-making and in-depth data analysis
  • writing detailed documentation

Web Analyst

HotelFriend - German Travel Startup
Кiev
03.2018 - 11.2018
  • Setting up analytics solution from scratch (GTM, GA)
  • Target audience analysis
  • Defining and setting goals (GA, GTM)
  • Close cooperation with development team
  • Visualization, creating KPI dashboards in Google Data Studio
  • Build, analyze and optimize funnel
  • Hypothesis formulation and testing
  • Conversion rate optimization

Assistant of Head of Research and CTO

PsyQuation - Australian Financial Technology startup
Кiev
10.2017 - 03.2018
  • Writing scripts to calculate financial statistics for community of traders
  • Building interactive graphs (Bokeh)
  • Dependence analysis of time of opening transactions
  • Writing content for blog posts based on research results
  • Work with databases
  • Analysis of behavior of traders, search for strategies leading to losses
  • Work with large amount of information, processing, structuring data

Web Analyst

Promo.ua - Digital Performance Marketing Agency
Кiev
09.2016 - 08.2017
  • Customize analytics for eCommerce projects
  • Setting up Enhanced eCommerce
  • Writing scripts on R to automate reporting
  • Configure funnels, goals, events in Google Analytics, Tag Manager
  • Work with Google BigQuery database
  • Visualization of results in Google Data Studio
  • Analyzed, identified, and helped to enhance features and functionalities of various websites.
  • Conversion rate optimization

Projects

multiplex.ua, lifecell.ua, gold.ua, foxtrot.com.ua, vuso.ua, 925.com.ua, med-magazin.com.ua, eldorado.ua, oh.ua

SEO-specialist, Project Manager

Indigo Internet Development Group
Кiev
01.2011 - 01.2016

Projects

PlanetofHotels, HotelsBukovel, HotelsLvov, HotelsKiev

Marketer/Commercial Director Assistant

«Bumazhniy zmey» ltd.
Кiev
01.2008 - 01.2011

Education

Master of Science - Computer Networks And Systems

National Aviation University
Kyiv
04.2001 -

Skills

    A/B testing

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COURSES

  • EXPF: intensive in data analysis, mathematical statistics and a/b testing
  • DataCamp: Intro to Python for Data Science, Introduction to R, Introduction to Machine Learning, Data Manipulation in R with dplyr
  • Stepik: Basics of statistics - 3 parts, Basics of programming on R, Data analysis in R - link to the profile, Introduction to Data Science and Machine Learning
  • Coursera: Data Science Johns Hopkins University (in progress), Understanding the Brain: The Neurobiology of Everyday Life

Timeline

Senior Data Analyst

Evo company (Prom.ua) - Ukrainian marketplace
11.2018 - 06.2022

Web Analyst

HotelFriend - German Travel Startup
03.2018 - 11.2018

Assistant of Head of Research and CTO

PsyQuation - Australian Financial Technology startup
10.2017 - 03.2018

Web Analyst

Promo.ua - Digital Performance Marketing Agency
09.2016 - 08.2017

SEO-specialist, Project Manager

Indigo Internet Development Group
01.2011 - 01.2016

Marketer/Commercial Director Assistant

«Bumazhniy zmey» ltd.
01.2008 - 01.2011

Master of Science - Computer Networks And Systems

National Aviation University
04.2001 -
Olha TrofimovaData Analyst