Please check my recemendation letter

Anonymous wrote:

I'm currently applaying for maters programs in Mathematics.   Does anyone can help me check my recomendation letter? It is with great pleasure that I write this letter of recommendation for Mikalai ***.  I hereby certify confirm that he has been working as a Software Engineer at Visiprise Inc. in Minsk, Belarus, since November 20, 2006.  He has been working full time (40+ hours per week) as a J2EE Software Development Engineer.  As his supervisor I have direct knowledge of his work. He is a highly qualified, enthusiastic developer and a creative problem-solver. While at Visiprise, he has taken part in our Performance Team. His responsibilities include identifying and analyzing project performance problems, solving memory leaks, Java and SQL performance problems, analyzing applicability numerical algorithms for optimization tasks and implementing them, writing recommendations, tips for other development teams how to avoid  such programming mistakes, and verifying  code for such kind of errors.  He enjoys studying and learning new things on his own. His interests include varieties of technologies (J2EE, .NET, Web 2.0,) and methodologies (XP, RUP, SCRUM, project metrics) in Computer Sciences and a lot of subjects (algorithms, graphs) in Mathematics. He is able to grasp new concepts and ideas quickly.  For example he implements the backup for our document server on FTP, automatic SQL updates with a wide range of technologies and languages such as Ant, CruiseControl, Perl, PHP, awk/sed, etc.  During his course of work, he showed a deep understanding and excellent working knowledge of UML, J2EE, portlets web services, XML, Oracle 9i PL/SQL high-level programming languages as well as MS C#. Net in her earlier project[Who is "her"? This needs clarification] Also he revealed his extraordinary mathematical and analytical skills in creating a Mathematical Statistics System which is a prominent system in the future release. It is clear to me, and I hope it will be to you, that Mikalai *** is an exceptional candidate, one who would contribute greatly to any program. I highly recommend him and wish him all the best in all future endeavours. Please feel free to contact me if you would like further details on his work at Visiprise, Inc.