Christopher Sahnwaldt

Christopher Sahnwaldt

Mentor
5.0
(255 reviews)
US$20.00
For every 15 mins
540
Sessions/Jobs
ABOUT ME

Software Engineer

German, English
Berlin (+01:00)
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 | 4 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
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ScriptsPHP
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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
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SQLMariaDB
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REVIEWS FROM CLIENTS

5.0
(255 reviews)
Daniel Lynch
Daniel Lynch
November 2024
amazing
Daniel Lynch
Daniel Lynch
November 2024
SO helpful. Don't hesitate!
Daniel Lynch
Daniel Lynch
October 2024
great design-oriented thinking, focuses on problem definition heavily so that implementation becomes much faster.
Daniel Lynch
Daniel Lynch
October 2024
Christopher took over an hour to look at my code BEFORE the session even started so he could get the problem properly "loaded" in his head. He worked very efficiently and helped mentor me on approaches that would solve the problem I was working on.
Daniel Lynch
Daniel Lynch
September 2024
Moves quickly and explains how technology works. Informative as well as solution-oriented.
Volodymyr Sen
Volodymyr Sen
July 2024
Very nice explaining of concepts of C lang
Lapis chu
Lapis chu
May 2024
Job completed quickly and explained work succinctly after. Highly recommend!
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!
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