Hello!
I am currently writing a cover letter for a position in UK, and I am looking for a little help to proofread it. I am not an English native and I wouldn’t like to send a letter full of mistakes ... If someone could have the kindness to take a look at the grammar and the vocabulary I would be very grateful! Any opinion on the content of the text is also welcome

Thanks in advance!
PS: in this letter, Lims stands for Laboratory Information Management System.
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Dear Sir or Madam,
I am writing in response to the advertisement of software developer. I am keenly interested in Lims systems, and after having worked on XXX and XXX products, I want now to focus my professional activity on this domain.
I have been working for nearly four years in software development, including more than two years on Lims. I have had the chance to evolve on various projects for several clients, which offered me excellent opportunities to develop my skills on all parts of the software development life cycle, from defining of needs with users to post-delivery assistance, including conception, development and testing. I have particularly acquired a strong knowledge of Lims during a mission for the pharmaceutical company XXX, where I worked within a team which managed the Lims for more than 20 sites of the group in France and in Europe.
The different projects and domains on which I have worked (pharmacy, industry and banking) have developed my ability to understand and master quickly and efficiently new fields and technologies. I have a strong team spirit, and I like very much to work directly with clients, as I done during these last years.
Being from French nationality, this job would be the best opportunity for me to improve my command of English and to expand my professional knowledge in an international environment. I am convinced that it would be very enriching for you as for me.
Please find enclosed my resume and let me know if I can provide further information or references. I am confident my qualifications will be of interest to you, and I hope very much that you will grant me the opportunity of an interview.
Yours faithfully,
Me