Göktuğ Aşcı, MD, MSc
Göktuğ Aşcı, MD, MSc

I am a data specialist who builds full-stack, cross-platform software. My passion is to create value by generating data-driven and inexpensive solutions with the help of big data and machine learning technologies.

Linkedin: gokasci | GitHub: gasci | Website: drgoktugasci.com | E-mail: [email protected]


Stealth Startup

İzmir, Türkiye
February 2024 - Present

Adference: The smartest optimization for Amazon Advertising 

Senior Data Engineer
  • Designed and built a modern data infrastructure (Astronomer, Fivetran, dbt, Cosmos, Snowflake, AWS) that scaled the existing product as part of a major migration process.
  • Supervised different squads during the refactoring of legacy ETL/ELT pipelines.
Berlin, Germany
October 2023 - Present

Floy: Supporting radiologists with AI 

Head of Data
  • Led a data team of 3 data specialists and a data annotation team of 4 radiologists.
  • Designed and built ETL/ELT pipelines (Airflow, Airbyte, dbt, Kubernetes, Argo CD, Open Telekom Cloud) shortening the product development cycle by 90%.
  • Set up two annotation platforms (Encord, Label Studio) and improved the annotation team's efficiency by 300%.
Berlin, Germany
July 2023 - October 2023
Senior Data Engineer
  • Designed and built a Data Warehouse (PostgreSQL) and a Data Lakehouse (S3, Delta, Trino) alongside the dashboards (Metabase) making 100000+ patients' data available for data pipelines and model training.
  • Built a data and ML pipeline management library (pandas, Great Expectations, Docker) to ingest, transform, and serve company data.
July 2022 - July 2023

SellerX: We Buy and Grow Amazon Businesses 

Data Engineer
  • Built ETL/ELT pipelines (Airflow, dbt, Snowflake) of 40+ Amazon brands that generated 250+ M dollars of revenue in 2021.
  • Deployed an Airflow environment (AWS, Docker), and built data pipelines to improve the decision-making processes for various business development teams.
  • Built a Python (pandas, PySpark) repository for ETL/ELT jobs, and REST API communication.
Berlin, Germany
September 2021 - July 2022

Mealdoc: AI-powered Healthy Diet 

Co-Founder, Full-Stack Developer
  • Preprocessed and analyzed 20000+ users’ anonymized health data to improve platform features and marketing performance.
  • Designed and implemented all front-end (Buefy.js, Vue.js, Apache Cordova) and back-end (Heroku, Django, AWS) features using cross- platform software allowing development and maintenance on one codebase for web, iOS, and Android applications.
  • Led a team of 6 nutritionists generating 200+ special recipes and completing 150+ online nutrition consultancy meetings, enabling 20000+ users to develop healthy eating habits.
Istanbul, Türkiye
June 2020 - September 2021

Curiosmo: Personal Exam Assistant

Co-Founder, Front-End Developer
  • Created the business model and after succeeding at TÜSİAD's Bu Gençlikte İş Var incubator program, our team earned the mentorship of Eczacıbaşı Holding.
  • Led a team of 25+ medical educators generating 9000+ questions and helping 600000+ medical cases be studied, improving online medical education quality in Türkiye.
  • Designed and implemented all front-end (Materialize.css, jQuery, Apache Cordova) features using cross-platform software allowing development and maintenance on one codebase for web, iOS, and Android applications.
Istanbul, Türkiye
November 2019 - October 2020

Istanbul University, Faculty of Medicine 

Medical Intern
  • Completed rotations in General Surgery, Pediatrics, Internal Medicine, Gynaecology, Neurology, Cardiology, Pulmonology, Emergency Medicine, Psychiatry, Dermatology, Family Medicine, and Algology.
Istanbul, Türkiye
August 2019 - July 2020

Yale University School of Medicine, Gunel Lab 

Research Intern
  • Performed 40+ plasmid DNA preparations; bacteria transformations; PCR and real-time PCR, gene cloning and mutagenesis procedures; cell culture and cell transfections and cell lysates for protein-protein interactions assays.
New Haven, USA
July 2018 - September 2018


Madrid, Spain
September 2020 - July 2021
Istanbul, Türkiye
September 2014 - July 2020


  • ERASMUS Program | ERASMUS Scholarship
Antwerp, Belgium
February 2018 - July 2018


  • Full Scholarship | Language of Education: English
Kocaeli, Türkiye
September 2009 - July 2014


  • Turkish: Native/Bilingual Proficiency (C2)
  • English: Native/Bilingual Proficiency (C2)
  • German: Upper Intermediate (B2)


Software Development & Design
Data Science & Big Data
  • Apache Airflow | Apache Spark (PySpark) | SQL | Fivetran | Airbyte | Apache Kafka (Python) | dbt | Great Expectations | Data Modeling | Snowflake | Datadog | MLflow | Keras | scikit-learn | pandas | Metabase | Looker | Tableau
Back-End Development & DevOps
  • Python | Terraform | Bash Scripting | AWS | Azure | GitHub Actions | Argo CD | MongoDB | PostgreSQL | Django | Flask | pytest | Docker | Kubernetes | Django Rest Framework | Heroku
Front-End Development
  • Ionic Framework | Capacitor | Vue.js | JavaScript | TypeScript | Apache Cordova | Vuetify | Bootstrap | Bulma | Electron | Figma

Product Development & Domain Specific
Product Development
  • GitHub | Atlassian JIRA/Confluence | Google Ads | Google Analytics | Google Firebase | Scrum
Domain Knowledge
  • Clinical Research | Patient Care

Projects & Publications

Data Science & Big Data
Software Development

Certifications & Awards

Online Courses
  • TÜSİAD Bu Gençlikte İş Var, Semi-Finalist, "Curiosmo"
  • Cetin Ceviz Entrepreneurial Camp Award 2nd Place, "Curiosmo"
  • 2th Best Oral Presentation, "Transcranial direct current stimulation may enhance decision making in gambling disorder: A preliminary double-blind sham-controlled study", 4th Istanbul University Neuroscience Congress Award
Other Courses


Apart from my professional career, I enjoy running, playing table tennis, and biking. I am an avid sprint runner and a city biker.

I like reading and writing poetry. In addition to this, I spend a substantial amount of my free time exploring the latest technology advancements in the health care world. Besides, my walls are full of jigsaw puzzles.

 ·  ·  ·  ·   ·