Christopher Sahnwaldt

Christopher Sahnwaldt

Mentor
5.0
(247 reviews)
US$20.00
For every 15 mins
521
Sessions/Jobs
ABOUT ME

Software Engineer

German, English
Berlin (+02:00)
Joined November 2014
EXPERTISE
10 years experience | 7 endorsements
Although Pascal was my first love, Java is in many ways the best programming language I know.
Although Pascal was my first love, Java is in many ways the best programming language I know.
JVMClassloaderGenerics
JVMClassloaderGenerics
10 years experience | 8 endorsements
Michael Kay, the author of the best Java XSLT processor (Saxon) and a large part of the XSLT specification, also wrote the best books on ...
Michael Kay, the author of the best Java XSLT processor (Saxon) and a large part of the XSLT specification, also wrote the best books on the subject. Very accessible, very precise, very thorough.
10 years experience | 12 endorsements
XML didn't live up to its expectations, but I still like it.
XML didn't live up to its expectations, but I still like it.
10 years experience | 2 endorsements
SQL is useful. What else can I say?
SQL is useful. What else can I say?
4 years experience | 4 endorsements
After the initial excitement wore off, I feel that Scala is not as huge an improvement over Java as it's made out to be (especially since...
After the initial excitement wore off, I feel that Scala is not as huge an improvement over Java as it's made out to be (especially since Java 8 introduced lambdas), and Scala has a few disadvantages: compilation often takes much longer and is less incremental, and some language features can actually lead to reduced code quality.
10 years experience | 3 endorsements
I once had to work with Zope and didn't like it, but Python was love at first sight. I never had an opportunity to build large Python app...
I once had to work with Zope and didn't like it, but Python was love at first sight. I never had an opportunity to build large Python applications though.
ScriptsPHP
View more
ScriptsPHP
View more
10 years experience | 1 endorsement
MySQL was the first SQL database I worked with, and it's still my favorite, although I also enjoyed working with PostgreSQL and Derby. Or...
MySQL was the first SQL database I worked with, and it's still my favorite, although I also enjoyed working with PostgreSQL and Derby. Oracle is an old-fashioned (but powerful) monster.
SQLMariaDB
View more
SQLMariaDB
View more

REVIEWS FROM CLIENTS

5.0
(247 reviews)
Talal Aljarbou
Talal Aljarbou
April 2024
Amazing mentor and a great teacher. Very humble and guides you smoothly through the coding experience. Helps you learn and understand every small detail. Best mentor yet!
Hirschbok Noel
Hirschbok Noel
April 2024
Very professional, spotted the mistakes in my code very fast and helped me a lot! Would recommend 100%. 10/10
Marciles Matti
Marciles Matti
April 2024
Very helpful and easy to work with! Recommend as a tutor!
David Coffman
David Coffman
February 2024
He was very nice and knowledgeable when looking at my code; I would highly recommend and hire back for future sessions.
priya_cast_23
priya_cast_23
January 2024
He works really hard on the debugging. :)
Vincent Ng Sheng Weng
Vincent Ng Sheng Weng
December 2023
Good explain and help me a lot.
Ned Western
Ned Western
November 2023
Goes above and beyond to be helpful. Very patient and has clear explanations.
Gabriell Yap
Gabriell Yap
October 2023
Always wonderful to work with Mr. Sahnwaldt!
Jasmine Ibikunle
Jasmine Ibikunle
October 2023
Christopher is amazing. He doesn't just help me fix the bugs, he explains it to me so I am able to solve the problem and issues like it in the future.
Gabriell Yap
Gabriell Yap
October 2023
Amazing!
SOCIAL PRESENCE
GitHub
nct2bcd
Copy Node.js compatibility data from https://github.com/williamkapke/node-compat-table (NCT) to https://github.com/mdn/browser-compat-data (BCD).
JavaScript
2
1
playground
Java
0
0
Stack Overflow
2097 Reputation
1
24
18