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Matej Mavricek

Manager of Data and Product Analytics

SkyHive @ Cornerstone

Technologies

My Portfolio Highlights

My New Course

Introduction to Python

My New Course

Introduction to Python

Data virtuoso, orchestrating symphonies of information.

My Work

Take a look at my latest work.

course

Object-Oriented Programming in Python

course

Working with the OpenAI API

course

Introduction to Python

course

Object-Oriented Programming in Python

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

Courses

Introduction to Python
Intermediate Python
Data Manipulation with pandas
Introduction to Tableau

My Work Experience

Where I've interned and worked during my career.

SkyHive by Cornerstone | Nov 2023 - Present

Senior Manager, Data and Product Analytics

Analyzing a global dataset of hundreds of millions of job postings and resumes/CVs/profiles. Building new data products, reports, views of data, and dashboards.
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True Fit Corporation | Mar 2021 - Oct 2023

Sr. Data Scientist, Manager

• Specified, designed, and developed of a complete AB test analysis tool to understand impacts on internal and external AB tests in collaboration with Science, Product & Customer Success. Developed a way to understand impacts by branch, device, locale, etc. while accounting for significance and power, as well as correcting for number of tests (Bonferroni correction). Provided test integrity metrics on branch splits, branc contamination, and load times per branch. • Built funnel reports to understand user interaction through a series of actions, such as registration flows in different versions of the UX. • Provided support, QA and analysis to multiple cross-functional squads, including engineering squads focused on reporting, TF recommendations, and UX squad.

True Fit Corporation | Jan 2019 - Mar 2021

Analyst Manager

• Supervised two analysts in continued work on internal reports & insights, external reports shared with clients, developing software tools and data health checks, data visualization tools and board reporting. Managed a hiring process for new analysts, as well as dealt with company downsizing during Covid. • Worked as part of a cross-functional reporting team to develop a new data dashboard for customer KPIs that can be accessed in real time with daily data updates. • Developed prototypes, contributed to design and implementation, and completed QA work on a wide range of metrics including: sessions, checkouts, conversion, daily & monthly active users, sessions per user, revenue per visitor, etc. • Built reports & metrics with concern with privacy concerns of user data (GDPR, CCPA) including cookie cycling, data purges and user opt-outs. • Taught, mentored and tutored analysts, data scientists, engineers and delivery members on returns reporting, conversion metrics, sales & returns data, data quality issues, and Tableau reports.

True Fit Corporation | May 2018 - Jan 2019

Senior Data Analyst

• Developed and improved reports of TF impact on client sales & returns, using segmentation of users by recommendation, gender, department & category of items, and sampling behavior using Pyspark, Jupyterhub notebooks and SQL. • Developed, maintained, and improved a python library with checks for data quality and worked with engineering, client success, and delivery to optimize & automate alerts, their impact and actions following an alert trigger. Used Jenkins to automate job checks. • Developed custom and ad-hoc reports to answer client questions in collaboration with Customer Success Managers. • Improved internal reporting through investigating legacy code, creating documentation and improving data pipeline process checks to ensure complete, accurate and reliable information for use in customer reporting, including high value reports like ROI.

Burning Glass Technologies | Feb 2017 - May 2018

Research Manager

• Led occupation taxonomy development on the Knowledge Architecture team. Included managing data quality of current taxonomies, updating categories, creating new data elements and maintaining internationalization of taxonomies with UK, CAN, ANZ, SGP. • Developed testing scripts and protocols for machine learning algorithms in R and Python. • Developed mappings and cross-walks between occupations, degrees, majors, titles, including public data such as IPEDS, ACS, BLS, StatsCan, UK Census, etc. • Enhanced occupational coding to better support products and clients and leveraging machine learning techniques to more accurately categorize job postings and resumes with the correct occupational tags. • Managed one full time team remote team member (Italy), and one remote part-time member (New Zealand) and one remote consultant (US).

Burning Glass Technologies | Jun 2014 - Feb 2017

Research Analyst

• Researched real time job market data. • Developed formal and ad-hoc reports on trends in job demand, skills requested by employers, geographic locations and across the last 5 years. • Used SQL, R and Python to extract, clean, analyze and visualize labor market data sets (postings & resumes). •Developed & maintained R functions & packages to assist analysis by other members. • Taught seminars and courses, and mentored coworkers in R, SQL & Excel. Utilized Confluence and JIRA for project development, maintenance and cross-team communication. • Prepared, validated and curated datasets for use in products such as JobPulse, Labor Insight, and Program Insight. • Developed new insights and metrics for product enhancement based on team and customer feedback. Public Projects Contributed to listed below.

My Education

Take a look at my formal education

M.S., Environmental Science and Public PolicyUniversity of Chicago | 2011
B.S. in Management, Information Systems, Operations ManagementTulane University - A.B. Freeman School of Business | 2008

About Me

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