Alex Kremiansky
Head Of Data Science
Tel Aviv
Summary
Data Scientist and Team Lead with expertise in machine learning, customer-facing roles, and
cyber security. Proven ability to lead teams, develop innovative solutions, and drive business
impact through data-driven strategies and cross-departmental collaboration.
Overview
14
14
years of professional experience
6
6
years of post-secondary education
Work History
Head of Customer Facing Data Science
Explorium
10.2023 - Current
- Lead diverse, customer-facing team of 5 data scientist across Israel and US
- Transformed team operations by implementing automated pipelines, significantly improving efficiency over previous manual processes
- Fostered a robust collaboration between R&D and Product departments, enhancing team synergy and aligning objectives
- Initiated and developed multiple POCs, successfully integrating them as key features of the platform.
Customer Facing Data Scientist
Explorium
06.2021 - 10.2023
- Worked with many customers both in pre-sale and post-sale phases on various use-cases include fraud detection, churn prediction, lead scoring, LTV prediction, and more
- Responsible for entire POC pipeline: exploratory analysis, feature engineering, algorithm development, evaluation, presentation to customers, and iterations on customer feedback
- Successfully executed several ML and Data POCs that resulted in over 2M$ increase in ARR.
Data Scientist
Microsoft
03.2020 - 06.2021
- Significantly improved efficacy of cybersecurity models by integrating a key data source, enhancing training sets across the system and reducing false positive rates (FPR) by an average of 7% for each model.
- Trained and deployed various machine learning models to detect malicious activity on endpoints (Ransomware detection, Memory based Cyber attacks, PowerShell scripts exploitation).
- Tracked and reported model's performance.
Software developer Intern
Microsoft
10.2018 - 03.2020
- Part of Windows Cyber Defender group, developing cloud product using Python, Django with Kubernetes infrastructure.
SOC Cyber Analyst
IBM
11.2016 - 09.2018
- Real time monitoring of operational production systems, investigating and reporting anomalies.
Intelligence Officer and Analyst
IDF
12.2010 - 02.2015
- Supervising and managing team of 5 analysts, responsible for team's tasks and objectives.
Education
Master of Science - Data Science And Machine Learning
Ben-Gurion University of The Negev
Beersheba, D 07.2018 - 08.2020
Bachelor of Science - Information System Engineering
Ben-Gurion University of The Negev
Beersheba 05.2015 - 08.2019
Skills
Python
Pandas, NumPy, SKlearn, Keras
Film History
PySpark
C#, Java, Swift
Customer-Facing presentation skills
Languages
Hebrew
Proficient
C2
Russian
Proficient
C2
English
Proficient
C2
Timeline
Head of Customer Facing Data Science
Explorium
10.2023 - Current
Customer Facing Data Scientist
Explorium
06.2021 - 10.2023
Data Scientist
Microsoft
03.2020 - 06.2021
Software developer Intern
Microsoft
10.2018 - 03.2020
Master of Science - Data Science And Machine Learning
Ben-Gurion University of The Negev
07.2018 - 08.2020
SOC Cyber Analyst
IBM
11.2016 - 09.2018
Bachelor of Science - Information System Engineering
Ben-Gurion University of The Negev
05.2015 - 08.2019
Intelligence Officer and Analyst
IDF
12.2010 - 02.2015
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