https://www.facebook.com/job_opening/801231266911914/?source=post_newsstand&__xts__[0]=68.ARBLkwE41zHFSqpvwOmE00kaOIfUp0a3vaQM39pumz6qzCBGfjK26eLNPL6YYjq1svvaLPDeAYWQphjVOh4pvGZ4zsp0dvONiU6iYo4sWYCDuzYDse49hCEofHPJHGvFUvZ8_Hd7-KbvOBdZVHxWtf8H_Jd_TrbojsFHVRQ9Xe0bVyzw7TP_8qyMVolPOdogECJb6gsVKKXp5GqdiKBzA4ym-08d4GIBqSj7a09ucNOm-5h01751WmVE-FkGJ93x89sTf54eo71VGxHVwzr1gSQOENcZEU5Latx9E_m17pOWQPn3vAeL8OxoM0O31mcwkJ_-oC7ncw8GEtGuSHtC9E__byU-hSfFY-j-OjnarKcCX4QRZzrlC5xYPcajFaSKvUoYAsY&__tn__=HH-R
It's for the 'Railway Kingdom' in Prague - a similar operation to Miniatur Wunderland in Hamburg - basically you build kits for them, to an acceptable standard, and they settle up with you once a month.
Ability to get by in Czech might be useful, but probably not absolutely necessary.
Well worth visiting anyway, if you're in the vicinity and can find the way in.