Leon Vack

Europe/Berlin $1 / min
$1 / min Request expert
Overall Ratings
Programming since 2011. Took Part in the 'Bundeswettbewerb Informatik' 2013 and 2014. 2013 I only took part in the 'Juniorliga', bacause I lacked the time to complete the other tasks. In 2014 took part in the 2nd round together with 190 other students from all over Germany. Additionally I am good at mathematics, and took part in the 3rd round (15 participants from Hessen) of the 'Mathematik-Olympiade' multiple times (e.g 49th and 50th 'Mathematik-Olympiade'). I program mainly console applications in Java and Python, but have some knowledge of graphical user interfaces in python, which I used amongst other things for a simulation of how gravity effects multiple bodies on a 2-dimensional plane. I also have some knowledge of modern security methods and know how RSA and the Diffie–Hellman key exchange work. I also programmed a small RSA key-gen and en-/decrypter for key within 32 bit range. Additionally I took part at a Fraunhofer-Talent-School about the topic of solving large linear equation systems. I also have some experience and knowledge in HTML, CSS, PHP, Ruby, Assembler and processor architecture.

Expert Skills

Expert Reviews

Jonathan Meadows   -   Jun 25, 2016 at 10:35 pm
“Excellent. Leon provided lots of tips on how to appropriate improve the quality of my sample code. Very clear, concise and detailed. Will certainly call Leon again”
Tan   -   Mar 5, 2016 at 12:30 am
“Helpful with code, I also learned many new ways to code in java considering it is my first time coding in java.”
Peter   -   Feb 26, 2016 at 07:19 am
“Leon is extremely smart and solves all problems efficiently. I have nothing but high praises for him. Do not waste another second on others. Leon is your answer!”
Laurens Jansma   -   Mar 31, 2015 at 04:56 pm
“He was a nice guy, but I don't think he should have jumped into this session.”


Expert Activity

Jun 25
Received a 5 review from Jonathan Meadows
Jun 25
Had a session with Jonathan Meadows
Mar 5
Received a 5 review from Tan
Mar 5
Had a session with Tan
Feb 26
Received a 5 review from Peter
Feb 26
Had a session with Peter
Mar 31
Received a 3 review from Laurens Jansma
Mar 31
Had a session with Laurens Jansma
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