Is this job halal?

Salaam team,

I am a Learning & Development(L&D) Specialist and recently a company offered me a freelancing gig. This company is a 3rd party contractor and the gig was for a Non Sharia compliant bank. While my initial position is that any work done for a haraam bank client is haraam, i want to check with the you (the scholars). My L&D work isnt haraam but is doing L&D work for a Non Sharia Bank client haraam? I recently lost my halal job and this gig has come up now - hence I want to check before i reject/accept it.

Jazak Allah Khair,
Mohamed Ajmal

Wa alaykum salaam, what exactly do you offer?