Use a WordPress Managed Hosting platform like WP Engine, Pagely, Pressable. I'm most familiar with WP Engine and what they provide you is a security layer protecting against zero-day vulnerabilities (like today's 4.2.1 update), automatic core updates, caching layer, daily snapshots, rollback, and cdn integrations if your service level includes it.<p>It's everything a competent server admin and webops person could handle, but if you're trying to build a startup, dedicating any resources towards that is just taking engineering talent away from building the business.<p>The only technical consideration you'd then be tasked with is managing your plugins. Some now have automatic point updates, but most do not. These you'll need to monitor, test, and upgrade yourself.<p>There's value in even outsourcing that, simple design updates and production tasks, implementing marketing and visitor tracking, etc.. When you're looking at that option, you can look to a firm (such as mine) that can take that on for you.