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Bardiya B.-Data Scientist & Machine Learning Engineer

Bardiya B. - Data Scientist & Machine Learning Engineer - profile avatar
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Frankfurt am Main, Germany

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Experience

Jun 2024 - Present
Cologne, Germany

Data Scientist

Rewe Digital GmbH

Position summary
Data Scientist at Rewe Digital GmbH
Industries
Information Technology
Retail
Business areas
Information Technology

Statistical Forecasting Algorithm

  • Improvement of an statistical probabilistic forecasting algorithm for sales + evaluation
  • Migration from R/On-premise to Python/Snowflake
  • Productionalization on Snowflake in cooperation with data engineers & DevOps

Monitoring Dashboard

  • Data engineering for preparation & provisioning of necessary data/resources on Snowflake
  • Development & deployment of a Streamlit dashboard in Snowflake

ML-based Probabilistic Forecasting on Vertex AI

  • Development of a ML-based probabilistic forecasting algorithm from scratch
  • Implementation of MLOps pipeline in Kubeflow on Google Cloud Vertex AI

Tech Stack: Python, Snowflake/Snowpark, R, Streamlit, Gitlab/Gitlab CICD, Terraform, Google Cloud, Vertex AI (aiplatform SDK, gcloud CLI, feature store, model registry, etc), kubeflow

Mar 2023 - Jun 2024
Berlin, Germany

Data Scientist

Coditorei GmbH

Position summary
Data Scientist at Coditorei GmbH
Industries
Information Technology
Business areas
Business Intelligence
Information Technology
Product Development
  • End-to-End Development of 2 Content Based Recommender Systems
  • Creation & Development of Code with Gitlab
  • Implementation of Unit Tests
  • Deployment of Batch Recommendation into AWS SQL-Database
  • Implementation of Gitlab CI/CD Pipeline
  • Improvement of implemented recommender systems with modernized tech stack (Pincone vector-database, TigerGraph graph-database) as MVP
  • Development & Deployment of a Streamlit Web-App for Visualization/Analysis of Recommendations & other Data Science solutions
  • Some MLOps & Data Engineering Tasks:
  • Creation of Tables and Provision of Data in AWS RDS & Postgres
  • Creation of batch prediction jobs for recommender via Gitlab pipelines
  • Deployment of Data Science Web-App via Docker and Gitlab pipelines
  • Creation Data pipelines in Kedro and Gitlab pipelines

Tech Stack: Python, Jupyter, SQLAlchemy, AWS/SageMaker, Gitlab, Gitlab CI/CD, Kedro, Docker, AWS RDS, Pinecone Vector DB, TigerGraph (DB, GraphStudio, PyTigerGraph), GraphQL, Postgres

Jun 2022 - Nov 2022
Mannheim, Germany

Data Science Consultant

Tech Mahindra GmbH

Position summary
Data Science Consultant at Tech Mahindra GmbH
Industries
Information Technology
Professional Services
Business areas
Business Intelligence
Information Technology
Mar 2019 - May 2022
Cologne, Germany

Data Scientist

Mediengruppe RTL Deutschland GmbH

Position summary
Data Scientist at Mediengruppe RTL Deutschland GmbH
Industries
Advertising
Media and Entertainment
Business areas
Information Technology
  • Statistical Analysis & Visualization of TV Ratings/Reaches
  • Timeseries Clustering of TV-Reaches & User-Behaviour with Hidden Markov Models & Dynamic Time Warping Algorithms
  • Development of a variety of ML-Algorithms in the context of ad break reach & effectiveness forecasting, including Data Mining, Feature Engineering, Training, Testing & (Bayesian) Hyperparameter Optimization
  • Decision-Tree Based Forecasting on structure data based on CatBoost
  • Deep-Learning & NLP Based Forecasting on structured data & contextualized document embeddings from BERT with neural network (MLPs, CNNs and coupled MLP/CNN models
  • Deep-Learning, NLP & Computer Vision based forecasting on sequential image as well as text & audio data with neural networks (RNNs, LSTMs, GRUs, CNNs
  • LSTM & Transformer Based Forecasting for reach predictions on timeseries data
  • Web Application Development & Deployment with Streamlit for monitoring production models and data
  • Web-Scraping Data for Model Development
  • ETL Processes & Feature Engineering in Spark, Hive, SQL, BigQuery
  • Consulting & Support of less experienced on their projects

Tech Stack: Python (Numpy, Pandas, SQLAlchemy), Jupyter Notebook, Tensorflow, Keras, PyTorch CatBoost, Spark, Hive, Hadoop, BigQuery, SQL, Streamlit, MLFlow, Google Cloud Platform, Docker

Sep 2018 - Dec 2018

Market risk control at a large German bank

Position summary
Market risk control at a large German bank
Industries
Banking and Finance
Business areas
Finance
  • Analysis of risk relevant figures (VaR, SVaR and sensitivity figures) and identification of driving factors (on risk factor level, as well as portfolio and trade level)
  • Validation and reporting of the daily VaR and SvaR risk figures
  • Monitoring risk limits and support of portfolio supervision in ensuring compliance with given limits
Jun 2018 - Aug 2018

Web-Application Development

Position summary
Web-Application Development
Industries
Banking and Finance
Business areas
Accounting
Finance
Information Technology
  • Implementation of a RESTful API for the system integration, using the Java-framework Jersey
  • Implementation of data-queries and mechanisms for processing data and generating accounting-relevant bookings, using SQL and the Java-framework Hibernate
  • Implementation of hedge accounting reports and their presentation in a Web-GUI, using the Java-framework Primefaces
Apr 2018 - Dec 2018
Frankfurt, Germany

Consultant (Financial Sector)

d-fine GmbH

Position summary
Consultant (Financial Sector) at d-fine GmbH
Industries
Banking and Finance
Information Technology
Business areas
Finance
Information Technology
Product Development

04/2018 – 05/2018

Training in a variety of topics in finance (e.g. price valuation of financial instruments, market risk, credit risk) and IT (see computer skills)

06/2018 – 08/2018

Web-Application Development: Development of a Java-based external (CC)IR hedge accounting module for the integration into a treasury management system

  • Implementation of a RESTful API for the system integration, using the Java-framework Jersey
  • Implementation of data-queries and mechanisms for processing data and generating accounting-relevant bookings, using SQL and the Java-framework Hibernate
  • Implementation of hedge accounting reports and their presentation in a Web-GUI, using the Java-framework Primefaces

09/2018 – 12/2018

Market risk control at a large German bank:

  • Analysis of risk relevant figures (VaR, SVaR and sensitivity figures) and identification of driving factors (on risk factor level, as well as portfolio and trade level)
  • Validation and reporting of the daily VaR and SvaR risk figures
  • Monitoring risk limits and support of portfolio supervision in ensuring compliance with given limits

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Advertising, Media and Entertainment, Retail, Professional Services, and Banking and Finance.

Information Technology
Advertising
Media and Entertainment
Retail
Professional Services
Banking and Finance
Profile match chart

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Business Intelligence, and Finance.

Information Technology
Product Development
Business Intelligence
Finance
Profile match chart

Summary

  • Part of the Winning Team at the Bertelsmann Hackathon 2019
  • Part of the Winning Team at the Bertelsmann HackDays 2019
  • Scholarship for doctorate financed by HGS-HIRe (2013-2017)

Skills

  • Data Science

  • Machine Learning

  • Deep Learning

  • Bayesian & Causal Models

  • Python, Numpy, Pandas, Scikit-Learn, Tensorflow, Pytorch, Pymc3

  • Sql, Spark, Bigquery, Mongodb

  • Google Cloud Platform

  • Tigergraph & Gsql

  • Programming, Scripting & Querying Languages: Python, C/C++, Java, Oop, Sql, Spark, Gsql (Tigergraph), Graphql, Bash Scripting

  • Python Libraries: Pandas, Numpy, Matplotlib, Plotly, Streamlit, Scikit-Learn, Tensorflow, Keras, Pytorch

  • Data Science: Machine Learning & Deep Learning, Monte-Carlo Simulation, Bayesian & Causal Models, Graph Algorithms & Machine Learning, Markov Models & Hidden Markov Models

  • Tools: Unix/Linux Systems, Version Control Systems (Git, Svn), Jupyter Notebook, Vscode, Gcp (Vertexai, Kubeflow), Aws, Azure, Tigergraph, Dbt

  • Python Libraries: Mlflow, Plotly Dash, Flask, Fastapi, Scrapy

  • Cloud: Tigercloud, Ibm Cloud & Watson, Docker

  • Data Storage/Querying: Mongodb, Hive, Hdfs, Hadoop, Neo4j

  • Programming & Scripting: R, Mathematica, Matlab/Octave, Excel/Vba

  • Web (App) Development: Html, Css, Javascript, Jquery

Languages

German
Native
English
Advanced
French
Advanced

Education

Dec 2013 - Aug 2017

Justus-Liebig-Universität

PHD · Theoretical Particle Physics · Giessen, Germany

Apr 2012 - Sep 2013

TU Darmstadt

Master of Science · Physics · Darmstadt, Germany

Apr 2007 - Mar 2012

TU Darmstadt

Bachelor of Science · Physics · Darmstadt, Germany

...and 1 more

Certifications & licenses

AWS Fundamentals: Going Cloud-Native

AWS

Azure Data Scientist Associate

Microsoft

Certified TigerGraph Associate

TigerGraph

Databases for Data Scientists

University of Colorado Boulder

Deep-Learning Specialization

deeplearning.ai

Functional Programming Principles in Scala

EPFL University

Generative Adversarial Networks

deeplearning.ai

Graph Algorithms for Machine Learning

TigerGraph

IBM AI Engineering Professional Certificate

IBM

IBM Professional Data Science Certificate

IBM

Introduction Level Training in R-Programming

Mediengruppe RTL Dtl. GmbH

Introduction to Computational Statistics with PyMC3

Databricks

Introduction to MongoDB

MongoDB

Machine Learning

Stanford University

Natural Language Processing

deeplearning.ai

Professional Machine Learning Engineer (in progress)

Google Cloud

Querying Data with Transact-SQL

Microsoft

Reinforcement Learning

University of Alberta

TensorFlow in Practice

deeplearning.ai

TensorFlow: Data & Deployment

deeplearning.ai

Trainings in Java, SQL & Web-App Development

d-fine GmbH

Statistics

Experience

Total positions 7
Experience in Information Technology 4.5 y
Avg length 1 y 2 m
Longest experience 3 y 2 m

Global experience

Countries worked in 1 (Germany)
Primary country Germany

Expertise

Recent roles Data Scientist, Data Science Consultant, Market risk control at a large German bank
Main industries Information Technology, Advertising, Media and Entertainment
Main business areas Information Technology, Product Development, Business Intelligence

Qualifications

Highest degree Doctorate
Certifications earned 21

Profile

Member since
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Frequently asked questions

Have questions? Find more information here.

Bardiya is based in Frankfurt am Main, Germany.

Bardiya speaks the following languages: German (Native), English (Advanced), French (Advanced).

Bardiya has at least 8 years of experience. During this time, Bardiya has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 1 year and 2 months. Note that Bardiya may not have shared all experience and actually has more experience.

Based on recent experience, Bardiya would be well-suited for roles such as: Data Scientist, Data Science Consultant, Market risk control at a large German bank.

Bardiya's most recent position is Data Scientist at Rewe Digital GmbH.

In recent years, Bardiya has worked for Rewe Digital GmbH, Coditorei GmbH, Tech Mahindra GmbH, and Mediengruppe RTL Deutschland GmbH.

Bardiya is most experienced in industries like Information Technology, Advertising, and Media and Entertainment. Bardiya also has some experience in Retail, Banking and Finance, and Professional Services.

Bardiya is most experienced in business areas like Information Technology, Product Development, and Business Intelligence. Bardiya also has some experience in Finance and Accounting.

Bardiya has recently worked in industries like Information Technology, Advertising, and Media and Entertainment.

Bardiya has recently worked in business areas like Information Technology, Business Intelligence, and Product Development.

Bardiya holds a Doctorate in Theoretical Particle Physics from Justus-Liebig-Universität, a Master in Physics from TU Darmstadt, a Bachelor in Physics from TU Darmstadt and a Bachelor in Mathematics from TU Darmstadt.

Bardiya has 21 certificates. Among them, these include: AWS Fundamentals: Going Cloud-Native, Azure Data Scientist Associate, and Certified TigerGraph Associate.

Bardiya will be available full-time from November 2026.

Daily rate distribution

0% 25% 50% 75% 100%
10% of experts charge less than €640 per day.
10% of experts charge between €720 and €800 per day.
10% of experts charge between €800 and €880 per day.
40% of experts charge between €880 and €960 per day.
30% of experts charge €960 or more per day.
<€640 €720-​800 €800-​880 €880-​960 €960+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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Daily rate avg. 896 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 912 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 6 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.