Hiring a top-notch WordPress developer in the United States can be likened to finding a needle in a haystack. While this might sound like an exaggeration, the truth is, given the proliferation of professionals in the field, it's no mean feat to identify an individual or a team that is up to par. However, by adopting a methodical approach informed by a robust understanding of the industry, you can simplify the process. This comprehensive guide aims to streamline your search and hiring process for a US-based WordPress developer.

WordPress, an open-source content management system (CMS), powers approximately 40% of the Internet. This CMS uses PHP and MySQL and it is highly customizable, allowing developers to create anything from simple blogs to complex websites. This unprecedented flexibility has made WordPress a favorite among developers and users alike.

In your quest to hire, it's important to delineate the exact requirements of your project. Are you building a website from scratch or redesigning an existing one? Do you need a theme customized, or would you prefer one built from the ground up? Are there any specific plugins you require? Will your site need regular updates and maintenance? Answers to these questions will help define the scope of your project and delineate the skills your potential hire should possess.

As your search narrows, you'll notice two types of WordPress developers: Frontend and Backend. Frontend developers handle everything that users visually see on their browsers or apps. They are proficient in languages like HTML, CSS, JavaScript, and jQuery. Backend developers, on the other hand, deal with server-side programming, working with languages like PHP, MySQL, and API's.

For complex projects, hiring a full-stack developer - an individual adept in both frontend and backend development - might be a prudent course.

Once you have a clear understanding of your project requirements, you can start your search. While there are various platforms to find WordPress developers such as UpWork, Freelancer, and Toptal, it is recommended to check local tech meetups, WordPress conferences, and forums. Networking can reveal talent that might otherwise be hidden in the competitive online marketplace.

Upon identifying potential candidates, assess them based on their experience, portfolio, and technical skills. A seasoned developer with a comprehensive portfolio is a reliable indicator of their competence. However, a developer fresh out of college might bring new ideas and updated knowledge, despite a sparse portfolio.

Technical skills are crucial. Look for proficiency in languages such as PHP, HTML, CSS, JavaScript, and SQL. A familiarity with the WordPress Codex, the online manual for WordPress, is also important.

While these hard skills are important, don't underestimate the power of soft skills. Clear communication, problem-solving, time management, and the ability to work independently are key traits of a successful developer.

The cost of hiring a WordPress developer in the U.S. varies significantly based on factors such as the complexity of the project, developer's experience, and geographic location. Developers in coastal areas such as California and New York tend to charge more than those in the Midwest. It is also worth noting that hiring a freelance developer could be more cost-effective than hiring an agency.

Finally, always remember that hiring a developer is an investment in your business. Therefore, instead of seeking the cheapest option, focus on the potential value they could add to your business.

In conclusion, hiring a top-notch US WordPress developer can be a daunting task, but with a clear understanding of the technical skills required, coupled with the knowledge of where to search and what to look for, you can find a developer who will add significant value to your project and ultimately, your business. Remember, the goal is not to hire the best developer, but the right one for your project.