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I'm Nikola Greb, a data scientist and AI educator dedicated to turning complex data into practical business value. I love building AI solutions and translate insights into actionable recommendations across industries. I enjoy creating PoCs, translating research into real products, and sharing knowledge through training, tutorials, and workshops. I’ve published work on ML methods and wellbeing topics and keep exploring how data science can improve decision making, processes, and user experiences.…I'm Nikola Greb, a data scientist and AI educator dedicated to turning complex data into practical business value. I love building AI solutions and translate insights into actionable recommendations across industries. I enjoy creating PoCs, translating research into real products, and sharing knowledge through training, tutorials, and workshops. I’ve published work on ML methods and wellbeing topics and keep exploring how data science can improve decision making, processes, and user experiences.

Nikola Greb

Data Scientist, AI Engineer, AI Developer, +2

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I'm Nikola Greb, a data scientist and AI educator dedicated to turning complex data into practical business value. I love building AI solutions and translate insights into actionable recommendations across industries. I enjoy creating PoCs, translating research into real products, and sharing knowledge through training, tutorials, and workshops. I’ve published work on ML methods and wellbeing topics and keep exploring how data science can improve decision making, processes, and user experiences.…I'm Nikola Greb, a data scientist and AI educator dedicated to turning complex data into practical business value. I love building AI solutions and translate insights into actionable recommendations across industries. I enjoy creating PoCs, translating research into real products, and sharing knowledge through training, tutorials, and workshops. I’ve published work on ML methods and wellbeing topics and keep exploring how data science can improve decision making, processes, and user experiences.

Available to hire

Zagreb, Croatia

I’m Nikola Greb, a data scientist and AI educator dedicated to turning complex data into practical business value.

I love building AI solutions and translate insights into actionable recommendations across industries. I enjoy creating PoCs, translating research into real products, and sharing knowledge through training, tutorials, and workshops.

I’ve published work on ML methods and wellbeing topics and keep exploring how data science can improve decision making, processes, and user experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

AI Educator and Data Scientist at Vectaron

June 1, 2023 - November 7, 2025

Providing training on UI-based AI tool usage; consulting on AI implementation. Developed text translation and linguistic analysis pipelines using Google Cloud Platform. Built a PoC for Croatian language speech-to-text conversion.

Data Scientist at Omnicom Media Group d.o.o.

October 1, 2025 - October 1, 2025

Built unsupervised learning recommender systems that suggested profitable products. Developed internal reporting using T-SQL, DAX, and Power BI enabling near real-time insights on key products.

Data Scientist at Evocenta GmbH

March 1, 2025 - March 1, 2025

Proposed and implemented unsupervised learning (BERTopic) and text visualization to support client acquisition. Implemented multiple transformer models increasing production performance. Initiated data preparation procedures improving model performance. Applied Cleanlab to address noisy labels. Led prompt engineering and built an internal prompt base.

Junior Data Scientist at Evocenta GmbH

March 1, 2023 - March 1, 2023

Spearheaded cosine similarity solution for ticket classification; built, fine-tuned, and evaluated supervised and unsupervised models. Collaborated in an international, remote team.

Data Scientist at Mobilunity

December 1, 2023 - December 1, 2023

Data science consulting and PoC development for varied ML projects. NLP data creation and cleaning. End-to-end chatbot applications using Microsoft Azure OpenAI Service. Conducted code reviews during hiring.

IT Vetting and Matching Specialist at Turing.com

April 1, 2021 - April 1, 2021

Onboarding interviews with senior developers; selecting candidates for Fortune 500 companies. Improved the candidate matching process; recognized as a top performer in a fast-growing Silicon Valley startup.

Tech Sales and Tech HR Consultant at Mireo d.d.

June 1, 2021 - June 1, 2021

Set up sales processes for a new spatiotemporal database; closed B2B inbound leads. Prospected and presented product; advised on marketing strategy using sentiment analysis in Python. Wrote SQL queries for product presentations; provided HR consultancy.

Data Analyst at Dedal Komunikacije d.o.o.

June 1, 2019 - June 1, 2019

Survey data analysis; chart building; healthcare research reporting; planning and execution of research projects; presenting results to clients.