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Hi, I'm Marjan Rahimof, a freelance data scientist based in Groningen, Netherlands. I specialize in Python-based analytics, ML pipelines, and turning complex datasets into clear, actionable recommendations for non-technical stakeholders. I enjoy working independently and collaborating with cross-functional teams to deliver fast, robust models that drive business impact. My background spans client-focused analytics, business performance reporting, and scalable ML pipelines, always with a strong emphasis on clarity, speed, and measurable results.…Hi, I'm Marjan Rahimof, a freelance data scientist based in Groningen, Netherlands. I specialize in Python-based analytics, ML pipelines, and turning complex datasets into clear, actionable recommendations for non-technical stakeholders. I enjoy working independently and collaborating with cross-functional teams to deliver fast, robust models that drive business impact. My background spans client-focused analytics, business performance reporting, and scalable ML pipelines, always with a strong emphasis on clarity, speed, and measurable results.

Marjan Rahimof

Data Scientist, Data Analyst, Programmer, +3

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Hi, I'm Marjan Rahimof, a freelance data scientist based in Groningen, Netherlands. I specialize in Python-based analytics, ML pipelines, and turning complex datasets into clear, actionable recommendations for non-technical stakeholders. I enjoy working independently and collaborating with cross-functional teams to deliver fast, robust models that drive business impact. My background spans client-focused analytics, business performance reporting, and scalable ML pipelines, always with a strong emphasis on clarity, speed, and measurable results.…Hi, I'm Marjan Rahimof, a freelance data scientist based in Groningen, Netherlands. I specialize in Python-based analytics, ML pipelines, and turning complex datasets into clear, actionable recommendations for non-technical stakeholders. I enjoy working independently and collaborating with cross-functional teams to deliver fast, robust models that drive business impact. My background spans client-focused analytics, business performance reporting, and scalable ML pipelines, always with a strong emphasis on clarity, speed, and measurable results.

Available to hire

Hi, I’m Marjan Rahimof, a freelance data scientist based in Groningen, Netherlands. I specialize in Python-based analytics, ML pipelines, and turning complex datasets into clear, actionable recommendations for non-technical stakeholders.

I enjoy working independently and collaborating with cross-functional teams to deliver fast, robust models that drive business impact. My background spans client-focused analytics, business performance reporting, and scalable ML pipelines, always with a strong emphasis on clarity, speed, and measurable results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Dutch

Beginner

Work Experience

Data-Driven Analytics & Engineering (Career Transition) at MTN – Telecommunications

January 1, 2015 - January 1, 2023

Applied data analysis and forecasting techniques to large-scale sales and operational datasets. Developed KPI dashboards and analytical reports supporting strategic planning and contributing to approximately 25% revenue growth. Collaborated with technical and non-technical stakeholders to translate analytical insights into operational decisions. Led and mentored teams in data-driven initiatives, strengthening cross-functional collaboration.

Data Science / Applied Machine Learning Intern at Research Center Biobased Economy

March 1, 2025 - August 1, 2025

Built and operated end-to-end machine learning pipelines in Python, spanning data ingestion, preprocessing, model training, evaluation, and inference on large-scale datasets (~50k records × ~28k features). Fine-tuned transformer-based models using PyTorch, achieving 99.2% classification accuracy while maintaining training stability and reproducibility across experiments. Designed automated training and evaluation workflows, significantly reducing manual experimentation and enabling faster iteration. Implemented structured experiment tracking and error analysis to identify failure modes, improve robustness, and guide targeted retraining strategies. Optimized distributed, GPU-accelerated training workloads, improving overall pipeline efficiency. Developed data validation and consistency checks to ensure reliable inputs for downstream inference and analytics.

DATA - DRIVEN BUSINESS ANALYTICS & ENGINEERING (CAREER TRANSITION) at MTN – Telecommunications

January 1, 2015 - January 1, 2023

Applied data analysis and forecasting to large-scale sales and operational datasets; developed KPI dashboards and analytical reports contributing to revenue growth; collaborated with technical and non-technical stakeholders to translate analytical insights into operational decisions; led teams in data-driven initiatives.