We are a team of designers and developers with expertise and experience in Photoshop, HTML5, CSS3, PHP, AJAX, JQuery, Angular JS, XML, Wordpress, Joomla, Shopify, Bootstrap, CodeIgniter, Laravel, Google Map API and MySql.
We have delivered many Wordpress sites and all of them can be edited and updated (including data like team members) from a password protected admin section. I am presuming that will work for you instead of "via the client-end." All the sites developed by us are 100% responsive.
I have studied the sketch and requirement. I am confident of delivering as required. I will need logo, text and images for all pages. It will help if you can show me some reference sites /wordpress themes that you like and share preferred colour scheme etc. I will need hosting server access to host the site.
I ensure a very thorough job and also support if you need changes / enhancements in future. I look forward to hearing from you and working on the project.