Eren Şimşir
Last updated
Founder, Editor & Software Engineer
Eren Şimşir is the founder and editor of Practice Tests Daily. He wrote every math template and the code that checks its answers, writes the Reading and Writing questions, and edits the guides.
Background
- B.Sc. in Computer Engineering, Düzce University (2025)
- M.Sc. student in Computer Engineering, Kocaeli University
- Is completing a double major in Industrial Engineering
- Works as a software developer; previously worked as a data scientist
How he works
Eren is a computer engineer, not a former College Board employee or a certified test-prep tutor, and the site doesn't pretend otherwise. What he brings is rigor: every math question is verified by code before publication, and every explanation is checked against the rule it teaches. See how we write and check our questions and the editorial policy.
Contact
Found a mistake in a question, or want a skill covered? Email [email protected] or use the contact page.
Guides by Eren Şimşir
- Digital SAT Format: Sections, Modules, Timing and Question Counts
- SAT Grammar Rules: Punctuation, Agreement and Verb Tense With Examples
- SAT Math Practice Questions: 12 Problems Across All Four Domains
- SAT Practice Test: How to Take a Full Practice Test at Home
- SAT Reading Practice Questions: How to Answer Each Question Type