Hi, I'm Berke

I am experienced with Machine Learning and Data Science.
Experienced with Python, Java, C, C#, SQL, Data Science, Machine Learning and Deep Learning frameworks.
Currently working as Data Scientist at Getir.

About

Hi, I am Berke, I am interested in building machine learning applications. I love to read about Recommender Models, LLMs, and building ML applications.

Also interested in building scalable and low latency real-time systems.

  • Languages: Python, Java, C, JavaScript, C#, Bash
  • Databases: MySQL, PostgreSQL, MongoDB, Redis, S3
  • Libraries: NumPy, Pandas, Seaborn, Apache POI
  • Frameworks: scikit, pytorch, Django, fastAPI, React.js
  • Tools & Technologies: Git, Docker, AWS, Kubernetes, JIRA
  • Other: AI, Algorithms, Optimization Methods, Operating Systems, Stochastic Methods
  • Languages(1): English, Turkish, German - Beginner

Experience

Data Scientist
  • Responsible for end-to-end process of creating and deploying recommender models, working closely with stakeholders to ensure optimal performance and continuous improvement with custom KPIs and A/B testing.
  • Implemented matrix factorization model with LightFM to enhance the product details page with more relevant product recommendations.
  • Built offline evaluation library for recommender systems that enabled faster iterations of recommendation engines.
March 2023 - Current | Istanbul, Turkey
Data Science Intern
  • Developed and deployed a job recommender model in production utilizing NLP topic modeling that serves 20000 customers daily accelerated by NVIDIA Rapids for text preprocessing and inference.
  • Built a SOTA double machine learning (causal inference) pipeline that delivers highly accurate estimates of price elasticity, allowing for more effective pricing optimization and promotion offers.
  • Created Tableau dashboard that is updated by live model for decision making by pricing team.
  • Developed optimization model for courier shift assignment resulting in $500.000 annual savings.
  • Tools: Python, FastAPI, AWS SageMaker, MongoDB, SQL, RedShift, S3, Airflow, MLflow
May 2022 - March 2023 | Istanbul, Turkey
Undergrad. Research Assistant
  • Researching AI supported presentations with Prof. Metin Sezgin.
  • Deployed Pytorch model to production for handwriting recognition and classification.
  • Improved app fluidity with JavaScript by reducing repetitive API calls.
  • Implemented unit tests for full functionality coverage, created CI/CD pipeline.
  • Created pipeline for pre-processing drawing data, training and optimizing SVM model and logging results.
  • Tools: Python, JavaScript, Pytorch, Scikit-learn, python-pptx
Nov. 2021 - Current
Software Engineer Intern
  • Created a web application that retrieves and sends authentication codes to our sales force in real-time.
  • Implemented employee skills vectorization for clustering in gamification project.
  • Created a Java app that reads data stored on Excel documents and transfers them to JSON.
  • Transformation and data processing on more than 1200 clients unstructured data.
  • Contributed to pre-processing step of ML project for credit risk scoring. Tools: Python, Java Spring, React Js.
  • Tools: Java, Python, MongoDB, SQLite, Swing, React
Feb. 2021 – Jan. 2022
Microsoft Student Ambassador
  • Created projects using Azure Cognitive Services (Vision, Text analytic, Search API, ML).
  • Received mentorship, attended to variety of courses about Azure Services.
  • Tools: C#, Python, Azure Services
Dec. 2020 - Aug. 2021
Game Developer Intern
  • Developed a 2D Android platformer game using C# and Unity.
  • Tools: C#, Unity
Sep. 2020 - October 2020

Education

Koç University

Istanbul, Turkey

Degree: Bachelor of Engineering in Computer Engineering
CGPA: 3.45/4.0

    Relevant Courseworks:

    • Intro. to Machine Learning
    • Natural Language Processing
    • Computer Vision with Deep Learning
    • Computer Networks
    • Data Privacy & Security
    • Operating Systems
    • Algorithms and Complexity
    • Programming language concepts
    • Advanced Programming

Koç University

Double Major

Degree: Bachelor of Engineering in Industrial Engineering

    Relevant Courseworks:

    • Optimization Methods
    • Stochastic Methods
    • Applied Statistics
    • Planning and Forecasting

Simon Fraser University

Vancouver, Canada

Degree: Computer Science
Exchange Student
Received Study in Canada Scholarships

    Relevant Courseworks:

    • Artificial Intelligence

Projects

music streaming app
Linear Programming Solver

Implemented with Java

Accomplishments
  • Java app that takes objective function and constraints from user in a GUI and outputs solution step by step with two phase simplex method.
quiz app
FPGA Morse Translator

Morse translator on FPGA Board

Accomplishments
  • FPGA Board translates morse input from switches to alphabet and shows on the screen and vice versa. This project was selected as 4th best project in class of 113 students in digital design course. Written with VHDL.
Screenshot of web app
Analysis of Covid CFR

Covid fatality rate analysis with python

Accomplishments
  • Analysis of Covid CFR (Case Fatality Rate), and correlation with GDP per capita, CVD, Air pollution, Number of hospitals per capita, number of hospital beds per capita, diabetes among population etc.
Discord
Discord Bot

Discord bot for useful commands

Accomplishments
  • A Discord bot that listens channels and accomplishes given tasks. Implemented with Discord APIs on Java.
Screenshot of  web app
Linux Shell

A Linux shell implementation with C

Accomplishments
  • Written in C
Screenshot of  web app
Algo Trader

Algorithmic trader implemented with Python

Accomplishments
  • Stock trading algorithm with Python using basic indicators such as moving averages, some of those were partially successful. Also built stock scoring script based on recent news from internet.
  • Utilized Yahoo APIs and variety of indicators from different sources such as Moving Averages etc.
Screenshot of  web app
Virtual Memory Manager

Linux virtual memory manager implemented with C.

Accomplishments
  • Written in C.

Skills

Languages and Databases

Python
Java
MySQL
PostgreSQL
C
Bash

Libraries

NumPy
Pandas
scikit-learn
matplotlib
XGBoost
OpenCV
Apache POI

Frameworks

Django
Spring
React

Other

Git
AWS
Docker

Contact