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Bartosz Sękiewicz

Bartosz Sękiewicz

Certified

Freelancer

Data Scientist Bartosz Sękiewicz | Kraków

Technologies

My Portfolio Highlights

My New Project

Exploring NYC Public School Test Result Scores

My New Course

Introduction to Python

My New Certification

Data Engineer Associate

My New Project

Exploring NYC Public School Test Result Scores

Data enthusiast, turning information into intelligence with a smile.

My Work

Take a look at my latest work.

course

Introduction to SQL

course

Introduction to Python

certification

Data Engineer Associate

course

Introduction to SQL

My Certifications

These are the industry credentials that I’ve earned.

Data Engineer Associate

Data Engineer Associate

Data Scientist Associate

Data Scientist Associate

Data Analyst Associate

Data Analyst Associate

DataCamp Course Completion

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

Courses

Introduction to Python
Introduction to SQL
Introduction to Power BI
Introduction to R

My Work Experience

Where I've interned and worked during my career.

Data Scientist Bartosz Sękiewicz | Oct 2017 - Present

Freelancer

- Specialize in automating data collection, processing, and analysis processes. - Completed nearly 50 contracts on UpWork with a 100% Success Rate, assisting clients across various industries in solving data-related issues. Selected Contracts 2017 – Present | HTA Consulting - Designed and implemented an advanced data collection and processing system based on the OVH cloud, which automated and optimized data retrieval processes for the European pharmaceutical market that were previously done manually. This system significantly reduced the work needed for data handling while increasing the information's scope and quality. - Utilized the collected data to power the IKAR PRO search engine (https://ikarpro.pl), which integrates and displays data about medicines and substances from various European sources in one place and supports the creation of valuable reports and analyses for clients through internal databases. 2021 | UpWork Client - Built an environment for collecting and analyzing data related to greyhound racing in Australia. - Developed a predictive model using ML techniques to forecast race outcomes and identify critical factors influencing race performance. 2021 | DataWorkshop - Carried out a project identifying website visitors based on cookie data. 2020 | Graphene Partners - Collaborated on creating a tool for predicting the sales of products for an international retail chain.
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HTA Consulting | Mar 2011 - Sep 2017

Analyst / Programmer

- As an Analyst, I created pharmacoeconomic analyses by automating report-related processes. I developed an advanced VBA tool for automatically generating pharmacoeconomic models based on Markov models and microsimulations. This tool significantly improved model consistency among different projects, increased clarity, and streamlined the analysis and validation process, enhancing report efficiency and quality. - As an Independent Specialist, introduced improvements in company data collection and processing processes. I optimized the removing duplicate abstracts process, reducing the time required for this operation by several person-days per analysis.

My Education

Take a look at my formal education

Master's Degree in Applied MathematicsFaculty of Mathematics and Computer Science, Jagiellonian University | 2012

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