Greetings !
I have read carefully your posted job description. There you don't mentioned that which slider you are using currently.
I am the expert frontend programmer I can take challenge to fix your minor 2 issues. So, Can you please let me know the site url so that I can debug and know your slider name and discuss with your about details.
Please invite me to discuss about this project and I must give your solution quickly.
Waiting for your response.
Regards
Ranju