Recommended expert

Meisam Ghafarlangroudi

Data Scientist

Meisam Ghafarlangroudi
Berlin, Germany

Experience

Jun 2023 - Present
2 years 8 months
London, United Kingdom

Data Scientist

Geeks Ltd

Geeks Ltd is an educational technology company focused on innovative language learning solutions. They developed the WordUp mobile app, a leading platform for mastering English vocabulary through AI-driven personalized learning.

  • Utilized a Large Language Model (LLM) at WordUp, tailored to enhance vocabulary learning by understanding and generating contextual examples, improving personalized learning experiences
  • Utilized machine learning to analyze user behavior and predict churn, identifying key engagement trends that led to a 15% increase in user retention and satisfaction
  • Designed and analyzed A/B experiments for new app features, measuring engagement and retention impact; provided actionable insights that improved user activation by 15%
  • Developed a Customer Lifetime Value (CLTV) prediction model, leading to a 10% increase in average CLTV through targeted retention efforts
  • Developed a Bayesian Marketing Mix Model to optimize budget allocation across digital and offline channels, improving ROI by 12%
  • Designed and implemented a high-performance Python ETL pipeline, optimizing CPU and I/O utilization and streamlining data cleansing logic, resulting in a 30% reduction in processing time
  • Reduced abandonment rate by 10% by analyzing user onboarding behavior and identifying key drop-off points
Feb 2020 - May 2023
3 years 4 months
Tehran, Iran, Islamic Republic of

Data Scientist

Mellat Bank

Mellat Bank boasts a staggering customer base of over 50 million individuals in Iran. Renowned for its extensive range of offerings, the bank provides a comprehensive suite of services exceeding 100, including innovative options like Buy Now, Pay Later (BNPL) solutions.

  • Developed a news trading algorithm using Fin-BERT and GPT3 and sentiment analysis to predict short-term price movements in Forex and Crypto markets, achieving a 20% improvement in trading signal accuracy
  • Built an ensemble model combining XGBoost with a deep auto encoder to detect anomalies in credit card transactions in real time, reduced false positives by 25% and improved fraud recall by 15%
  • Implemented a customer churn prediction model, reducing churn by 15% and enhancing customer retention strategies
  • Built recommendation engines to suggest banking products to customers, enhancing cross-selling opportunities by 22%
  • Developed a sentiment analysis model using BERT to analyze Instagram comments, achieving over 85% accuracy and providing actionable insights for customer engagement strategies
  • Engineered a forecasting model using Deep AR to predict credit usage with an R-square value exceeding 80%, optimizing financial planning
  • designed and implemented a credit risk scoring system that improved early identification of high-risk applicants and reduced default rates by 12%
Mar 2019 - Feb 2020
1 year
Tehran, Iran, Islamic Republic of

Data Scientist

Hosh and Dansh

Ibiar.com is an online grocery platform developed by Smart and Science.

  • Created machine learning models to predict inventory needs, reducing holding costs by 15%
  • Built models to predict customer churn, enabling proactive retention efforts that decreased churn rate by 12%
  • Implemented algorithms that adjusted pricing based on demand forecasting, increasing revenue by 10%

Skills

  • Python

  • R Programming

  • Scala

  • Snowflake

  • Ms Sql Server

  • Nosql

  • Milvus

  • Mongodb

  • Bigquery

  • Elasticsearch

  • Postgre

  • Aws (S3, Glue, Redshift, Lambda, Kinesis)

  • Google Cloud Platform (Gcp)

  • Azure

  • Airflow

  • Dbt

  • Ssis

  • Ssas

  • Apis Services

  • Docker

  • Terraform

  • Kubernetes

  • Ci/cd

  • Fastapi

  • Git

  • Github

  • Slack

  • Jira

  • Confluence

  • Kubeflow

  • Agile Development

  • Ms Power Bi

  • Google Looker

  • Tableau

  • Metabase

  • Google Analytics

  • Data Studio

  • Apache Spark

  • Ray

  • Hadoop

  • Regression Models

  • Classification

  • Time Series Analysis

  • Deep Learning (Tensorflow, Pytorch)

  • Llm

  • Faiss

  • Scann

  • Huggingface

  • Rag

  • Bert

  • Sentiment Analysis

  • Nlp

  • Vector Search

  • Web Scraping

  • Mmm

  • Llama

  • Lora

  • Llama Index

  • Langchain

  • Transformers

Languages

English
Advanced
German
Intermediate

Education

IU International University of Applied Sciences, Berlin

Master of Data Science · Data Science · Berlin, Germany

Science and Culture University, Iran

Master of Financial Engineering and Risk Management · Financial Engineering and Risk Management · Tehran, Iran, Islamic Republic of

Azad University, Iran

Bachelor of Industrial Engineering · Industrial Engineering · Tehran, Iran, Islamic Republic of

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