Avon Ambulance
Thank you for your letter. I am seafarer in capacity Chief officer partly duty as Medical officer, I have medical care certification and training to give first aid to vessel crew members. Frankly I have engineering qualification and currently studying law, but for me very interesting medical sphere, my grandma was professional nurse and actually I grew up in family with medical background. I keen to learning curve new fileds of life, like to know new culture, people, at the time I studing Japanese and online social learning courses.

"Seafarer" is not "wrong," but it is mostly a literary and even poetic word. &nbsp;If a person were an explorer in the 15th through 19th centuries, such a person could easily be called a seafarer. &nbsp;Christopher Columbus, Amerigo Vespucci, and Ferdinand Megellan were seafarers. &nbsp;However, your post is about a modern navy or merchant marine, so you are better called a "sailor."
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Since you are studying law, I hope this might be of interest to you: &nbsp; &nbsp;https://www.saccourt.ca.gov/general/legal-glossaries/docs/russian-legal-glossary.pdf

Here are some different ways to write this.&nbsp;
Avon Ambulance
Thank you for your letter. I am a seafarer in capacity&nbsp;as a Chief officer with&nbsp;some&nbsp;duties as a Medical officer, and I have a medical care certification, and training to give first aid to vessel crew members. Frankly I have engineering qualifications and am currently studying law, but for me the&nbsp;medical sphere/field&nbsp;is&nbsp;very interesting.&nbsp;My grandma was a professional nurse and actually I grew up in a family with a medical background. I am keen on learning curve new fields/things&nbsp;of&nbsp;in life, like to knowing/learning&nbsp;new cultures, meeting people, and at the time I studying Japanese and online social learning courses.