08/03/2026 updated

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Data Science & AI Consultant

Sofia, Bulgaria
Only remote
MBA, Nantes University, France
Sofia, Bulgaria
Only remote
MBA, Nantes University, France

Profile attachments

A_Resume_and_Portfolio_Plamen_Rabadzhiyski.pdf

About me

I bridge the gap between AI engineering and business ROI. I build production-ready GenAI (RAG, Agents), Predictive ML (Churn, Forecasting), and scalable Cloud Architectures (AWS, Azure, Snowflake, Databricks) that drive measurable results—like $1.3M+ in efficiency gains and 16% ROAS lifts.

Application Programming Interfaces (APIs)Artificial IntelligenceData AnalysisBusiness Intelligence DevelopmentBig DataData ArchitectureData TransformationData Transformation ServicesData IntelligenceLean Six SigmaMachine LearningMarketing AnalyticsPredictive AnalyticsSmart DataAzure Machine LearningBusiness Intelligence Development StudioData ScienceSnowflakeSQL Server Business IntelligenceGenerative AIData StrategyData LakeData AnalyticsAWS Data AnalyticsAzure Data AnalyticsAzure Synapse AnalyticsArtificial Intelligence Markup Language (AIML)Sas Visual AnalyticsDatabricks
Data Science & AI
Expertise in building data science and AI solutions including customer churn prediction, employee turnover analysis, segmentation, price prediction, marketing mix modelling, and sales forecasting. Development and deployment of AI systems including agents and RAG pipelines using Python, LangChain, CrewAI, AWS Bedrock, and Azure AI services.

Strategic Leadership & Project Management
Proven track record in defining technology roadmaps, reducing technical debt, and directing technical teams to achieve business goals. Certified PMP and Lean Six Sigma Master Black Belt with experience managing teams of up to 60 people and leading large-scale transformation projects.

Cloud Architecture & Enterprise Solutions
Design and implementation of robust cloud-based architectures leveraging Snowflake, AWS (SageMaker, Bedrock, EC2, OpenSearch, Neptune, DynamoDB), Azure, and Databricks. Translation of complex technical concepts into actionable insights for business leaders across cloud infrastructure, on-premise solutions, and advanced analytics/AI tools.

Machine Learning & Statistical Modeling
Application of traditional machine learning techniques including classification, regression, segmentation, time series forecasting, and anomaly detection using Python, R, XGBoost, H2O, Spark, and various ensemble methods.

Business Intelligence & Data Visualization
Creation of dashboards and visualizations using Tableau, Power BI, Shiny, and Tableau Online. Deployment of global data science capabilities with MySQL, MS Azure cloud features, and Python/R data engineering.

Generative AI & LLM Applications
Design and deployment of generative AI applications including business document summarization, marketing assistants, BI agents, multi-agent workflows, and hybrid RAG systems using LangChain, CrewAI, OpenAI API, Groq API, Streamlit, and Claude Code.

ETL & Data Engineering
Management and maintenance of ETL pipelines related to SAP systems, data lake best practices, and MLOps. Experience with Snowflake, Databricks, Azure Blob, AWS SageMaker, and Google Firebase for scalable data engineering.

Agile & Process Improvement
Implementation of Agile frameworks including Scrum and Kanban, Jira/JSD project tracking, and Lean Six Sigma methodologies. Delivered efficiency gains exceeding $420k and improved forecasting accuracy by 10% through machine learning and process optimization.

Marketing Mix Modeling & Analytics
Provision of marketing mix modeling consulting using R/Python, Shiny, Robyn, tidyverse, Prophet, Nevergrad, and Azure. Improved ROAS by 16% for an American e-commerce business through statistical models, analysis, and before/after comparison.

Experience

Professional experience5 - 10 years
Freelancer since2023

Languages

BulgarianNative speakerEnglishFluentFrenchFluent

Project history

Consultant, Data Science & AI

Data Science AI, Freelance
Leveraging a diverse skill set to help businesses transform their operations, enhance productivity, and drive growth through the power of data and AI. Consulting companies to unlock growth potential through data science and AI, translating complex technical concepts into actionable insights for business leaders. Projects include marketing mix modeling, AI system auditing, automated end-to-end decision-making systems, and deployment of AI agents and RAG systems using Python, Streamlit, LangChain, CrewAI, AWS Bedrock, and Azure AI services.

Senior Data Scientist / Data Officer

Blankfactor, Sofia, Bulgaria
Utilized a combination of leadership, project management, and technical skills to design robust data science applications. Worked on employee turnover analysis revealing $640k per year in productivity gains. Built internal structure and processes for team collaboration, managing a team of data practitioners and administering tools like Jira/Confluence, AWS SageMaker, AWS Bedrock, Snowflake, and Google Workspace. Designed a robust cloud-based architecture leveraging Snowflake integrating various data sources.

Projects and Data Lead

iCOVER, Sofia, Bulgaria
Led a team of product managers and data analysts. Worked on product development, Agile framework, and data management. Made company projects 100% visible by deploying Jira/JSD. Improved forecasting by 10% using machine learning to cluster key customers and predicted product prices and sales with various models. Deployed global data science capabilities with Python/R data engineering, MySQL, Tableau Online visualizations, and MS Azure cloud features.

Project Portfolio Lead

Cargill, Sofia, Bulgaria
Led a team of project managers within the Cargill Business Services organization. Worked on migration projects, Lean Six Sigma, and tool deployments. Eliminated 70% of e-mail inquiries by deploying a Salesforce-based application that decreased performance indicators preparation time by 90% with automated reporting. Delivered more than $420k in efficiency gains by leading the Lean Six Sigma Program for the EMEA site with 1,200 employees.

Quality Program Manager / Business Analyst

HP Inc., Sofia, Bulgaria
Led projects and a reporting team of experts who maintained an ETL pipeline related to the SAP system. Saved 100% uptime for overall critical processes in case of disruption events with a business continuity plan for more than 400 people in 20 sites across EMEA. Ensured 100% of all assigned reports were delivered on time by coordinating the efforts of a team of business analysts.

Certificates

Advanced Marketing Mix Modeling Using Robyn

Meta

2024

SnowPro Core

Snowflake

2023

Python for Data Science Automation

Business Science

2023

Data Scientist Professional

DataCamp

2022

Microsoft Certified: Azure AI Fundamentals

Microsoft

2022

Data Scientist with Python

Udacity

2021

Lean Six Sigma Master Black Belt

Six Sigma Global Institute

2020

Project Management Professional (PMP)

Project Management Institute

2017

Professional Scrum Master I

Scrum.org

2016

ITIL Foundation Certificate

EXIN

2016

PRINCE2 Practitioner

Axelos

2014


Portfolio

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