Data Marks
Subscribe
Sign in
Home
Archive
About
Product Data Science technical assignments in 2026
There are still technical tasks for data scientists that are given to solve offline.
Feb 12
•
Eltsefon Mark
15
1
Latest
Top
Discussions
What have been helping me along my career
There are endless pieces of advice on how to stay efficient — morning routines, productivity hacks, new frameworks every week.
Jan 28
•
Eltsefon Mark
8
Best Practices for the experiments
We all use experiments for data-driven decision-making, whether it’s product changes, marketing tweaks, or research.
Jan 14
•
Eltsefon Mark
8
Happy 2026
This year changed a lot for me.
Jan 2
•
Eltsefon Mark
3
The right mindset to get a data scientist interview
If you’re preparing for data science interviews and feeling frustrated, exhausted, or questioning your self-worth after a rejection - this post is for…
Dec 12, 2025
•
Eltsefon Mark
7
1
Interpretation does matter
Interpreting experiment results, whether you’re building a product, running a marketing campaign, or doing research, can be tricky.
Nov 12, 2025
•
Eltsefon Mark
3
How Not to Turn Your 1:1 into a 0:0
1:1s can be the most rewarding meetings - but they can also be wasted time.
Oct 17, 2025
•
Eltsefon Mark
8
When intuition wins over A/B test?
When making choices that affect products, policies, or strategies, it’s important to understand not just what the data says, but how much trust we can…
Oct 1, 2025
•
Eltsefon Mark
6
See all
Data Marks
A newsletter dedicated to talking about data science, experimentation and how to pass the mark.
Subscribe
Data Marks
Subscribe
About
Archive
Sitemap
This site requires JavaScript to run correctly. Please
turn on JavaScript
or unblock scripts
