FRATCH

Recommended expert

Slovenia

Experience

May 2016 - Present

9 years 11 months

United Kingdom

Lead Data Scientist

Self-employed

Identified cost saving opportunities for Capita / O2 partnership – estimated at £750m.
Developed around fifty bespoke analytical solutions and automated the processes.
Integrated non-technical members into project teams for B2B clients.
Overall responsibility for commercial success of data analytic solutions.
Team management of data professionals including data scientists and data engineers.

Mar 2014 - Apr 2016

2 years 2 months

London, United Kingdom

Senior Data Scientist

Self-employed

Designed efficient data management solutions, bespoke models and supervised their deployment into production.
Increased response rate to Google’s advertising campaign by 15%.
Improved data science capability by introducing new concepts and practices.
Managed a team of five to ten analytics and data professionals.

Feb 2012 - Feb 2014

2 years 1 month

London, United Kingdom

Lead Data Analyst

Self-employed

Built bespoke statistical solutions and partnered with project teams within the company (BBC).
Mentored and managed senior analysts, stakeholders and clients.

Apr 2010 - Dec 2011

1 year 9 months

Marlow, United Kingdom

Senior Data Modelling Analyst

Dun & Bradstreet

Built fully automated bespoke analytical solutions for clients.
Managed junior analysts and partnered with the sales team to ensure analytic costs were correctly priced.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Professional Services (11.5 years), Telecommunication (10 years), Advertising (2 years), and Media and Entertainment (2 years).

Professional Services

Telecommunication

Advertising

Media and Entertainment

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Business Intelligence (16 years), Information Technology (2 years), and Sales (1.5 years).

Business Intelligence

Information Technology

Sales

Summary

Accomplished data scientist and people manager, with a passion for delivering valuable insights through analytical and data science solutions. Committed to helping companies advance by developing robust strategic data plans and bespoke analytical solutions using predictive modelling of complex data sets.

Skills

Strategic Planning
Leadership
Project Management
Mentoring
Statistics
Data Science
Modelling
Machine Learning
Natural Language Processing
Recommender System
Large Language Models
Data
Mentoring
Dimensionality Reduction
Time Series Analysis
Clustering
Python
Numpy
Scipy
Pandas
Scikit-learn
Pytorch
Nltk
Transformers
R
Databricks
Sas
Sql
Tableau

Languages

Slovenian

Native

English

Advanced

Education

University of Ljubljana

D.Sc., Quantitative Methods · Quantitative Methods · Ljubljana, Slovenia

University of Ljubljana

M.Sc., Quantitative Methods · Quantitative Methods · Ljubljana, Slovenia

Profile

Created

December 2025

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Frequently asked questions

Do you have questions? Here you can find further information.

What languages does Tomaž speak?

Tomaž speaks the following languages: Slovenian (Native), English (Advanced).

How many years of experience does Tomaž have?

Tomaž has at least 16 years of experience. During this time, Tomaž has worked in at least 4 different roles and for 2 different companies. The average length of individual experience is 4 years and 11 months. Note that Tomaž may not have shared all experience and actually has more experience.

What roles would Tomaž be best suited for?

Based on recent experience, Tomaž would be well-suited for roles such as: Lead Data Scientist, Senior Data Scientist, Lead Data Analyst.

What is Tomaž's latest experience?

Tomaž's most recent position is Lead Data Scientist at Self-employed.

What companies has Tomaž worked for in recent years?

In recent years, Tomaž has worked for Self-employed.

Which industries is Tomaž most experienced in?

Tomaž is most experienced in industries like Professional Services, Telecommunication, and Advertising. Tomaž also has some experience in Media, Entertainment and Publishing.

Which business areas is Tomaž most experienced in?

Tomaž is most experienced in business areas like Business Intelligence, Information Technology (IT), and Sales.

Which industries has Tomaž worked in recently?

Tomaž has recently worked in industries like Professional Services and Telecommunication.

Which business areas has Tomaž worked in recently?

Tomaž has recently worked in business areas like Business Intelligence.

What is Tomaž's education?

Tomaž holds a Doctorate in Quantitative Methods from University of Ljubljana and a Master in Quantitative Methods from University of Ljubljana.

What is the availability of Tomaž?

Tomaž is immediately available for suitable projects.

What is the rate of Tomaž?

Tomaž's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.