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Sarah Tomori Oyebo

Sarah Tomori Oyebo

Data Scientist

Valcon A/S


My Portfolio Highlights

My New Course

Introduction to Python

My New Project

The Android App Market on Google Play

Data virtuoso, playing the strings of information to create harmonious insights.

My Work

Take a look at my latest work.


Data Manipulation with pandas


Introduction to Python


Intermediate Python

DataCamp Course Completion

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

My Work Experience

Where I've interned and worked during my career.

Valcon | May 2022 - Present

Senior Data Specialist

Senior Specialist in the Data Platform Team at Valcon with a particular focus on building Data Science and Data Platform (Data Engineering) solutions. • Contributed to a better understanding of client's networking capital and implemented the business logic, did data transformations of ERP data using SQL in the client's database. The final solution were Power BI dashboards based on a new data model, which were used as a tool to improve liquidity, e.g. by optimising payment terms and renegotiating contracts with customers and suppliers where necessary. • Handled large volumes of data in client's SQL database via stored procedures with the purpose of exploratory data analysis to understand current situation. Built a k-prototype algorithm in Python to identify churn behaviours among customers. The solution required an understanding of the business problem and was used to support client's customer retainment and acquisition strategy. • Collaborated closely with the client and their IT department to get familiarized with and understand the needs of a new data platform. The end goal was to have a centralized overview of data from different critical data sources and to use this for decision making. As a part of the project, it also involved covering main data management needs, such as assessing data responsibilities, data quality and handling of data confidentiality. Identified and created data flows (old vs. new). • Did process mapping of the planning process to understand delay's in work tasks. Applied data analysis and visualization using R to identify i.e. lead time. The project was a building block for a new case management system to enhance transparency and collaboration between all parties involved in the planning process.
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Carve Consulting P/S | May 2019 - May 2022

Management Consultant (Data Scientist)

Project experience i.a. in the following areas: • Data analysis (e.g. reporting based on financial data) • Procurement (enrolling new procurement platforms) • Finance (creating economics reports, inventory management etc.) • Project management in client projects • Data science/ML (for internal ML projects) • Creating and presenting educational content (e.g. data science, data analysis, accounting) Some of the sectors I've done projects in involve: • Financial sector • The healthcare sector (privat and public) • The educational sector • The housing sector Besides working on a broad range client projects, I continuously try to upskill myself and I'm particularly passionate about the different topics of data science, ML and AI. For this reason I try to keep up with the trends in the field and I regularly follow courses to enhance my technical skills further.

Copenhagen Business School | Jan 2019 - May 2019

Research Assistant - Department of Accounting

Primary tasks: • Data analysis and visualisation • Performance measurement • Research • Constructed a KPI-system for benchmarking in 3 different areas for the Department of Accounting, using data

Vertex Energy Ltd | Jan 2018 - Apr 2018

Student Researcher

Fieldwork for my research on the Nigerian banking sector in Lagos, Nigeria. • My thesis topic was “The Determinants of Performance in the Nigerian Banking Sector” and was based on statistical and econometric analysis, using financial and macroeconomic data. • I combined this with interviews with key persons in some of Nigeria’s largest banks and investment banks to enrich my research with subject matter insights. • I received the grade 12 (highest grade on the Danish scale) for the defense of my thesis

Furesø Kommune | Jul 2011 - Jan 2018

Social- and healthcare assistant (substitute)

I worked as a social healthcare assistant during much of my time as a student (part-time) and during a period in my gap year (full-time), where I was not travelling abroad or taking courses. My main tasks were: • Managing patients’ partially/fully medication • Assisting with the planning of patients’ daily activities • Preparation of meals • Providing moral support to patients • Collaborating with colleagues in tasks too demanding for one person. Although not directly related to my studies, this line of work taught me a lot about the healthcare sector and dealing with different kinds of people. It matured me significantly, as it gave me a lot of responsibility at a very young age.

Landsforeningen Frie Børnehaver og Fritidshjem | Dec 2014 - Apr 2015

Accounting Student Worker

While working in the job, my main responsibilities were: • Accounting and bookkeeping • Invoice payments • Salary payments • Facilitating communication with and between clients and creditors

Ebenezer Orphanage | Jul 2014 - Aug 2014

Mathematics/English Teacher (Volunteer)

I volunteered at Ebenezer Orphanage in Arusha, Tanzania, where I: • Was teaching children in Mathematics and English • Prepared classwork and homework for the children • Planned other activities for the children during break time

Tumaini Healthcare Centre | Jul 2014 - Jul 2014

Health care assistant (Volunteer)

I assisted the local doctors, e.g. by managing statistics of patient diagnoses to identify the frequencies of different diseases. Additionally, I helped with other practical health related tasks. During my stay in Tanzania (2 months in total) I managed to learn basic Swahili.

Xidian Primary School | Oct 2012 - Jan 2013

English Teacher (Volunteer)

I was eaching English at a Chinese primary school in Xi'an, Shaanxi, China while learning Mandarin. I was responsible for classes consisting of 40-50 students, along with classwork preparation, assignments and other activities. In addition, assisting local teachers with possible language difficulties such as grammar and other challenges related to teaching methods. Furthermore, I taught English and arranged interactive games in a Chinese evening school for children who needed additional lessons.

My Education

Take a look at my formal education

Professional Certificate, Data ScienceHarvard University | 2020
Speak to Lead - Toastmaster's Club for Public Speaking | 2020
Master's degree, Accounting, Strategy and ControlCopenhagen Business School | 2018
Master's degree (Exchange semester), Finance and InvestmentUniversity of the Witwatersrand | 2017
Bachelor's degree (Exchange semester), Business Administration and Management, GeneralIÉSEG School of Management | 2015

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