You can update your staff user Profile Picture, First Name, Last Name and Contact Number by navigating to Settings > My Settings > Edit in BrightHub, Please find a guide for editing these details Here. 

If you're uploading a profile picture then this can be done in Settings > My Settings > Additional Info, the format needs to be .jpg, .png, .jpeg or .gif, and the maximum file size is 2MB.

Once you've finished adding or amending your details just click Save to save the changes.