Brazen Careerist

Spelling and grammar errors. Gaps in unemployment. Vague job descriptions.

Most job seekers are well aware of the major no-nos on resumes, but here's the bad news: your resume probably has other red flags you're not aware of. Here's the worst news: There's no way to know for sure what they are.

Why? Because every recruiter and hiring manager has a different approach, and every company has different needs. A red flag for one position is an asset for another.

What's a job seeker to do? Well, if you're a mind reader, that's a big help. Otherwise, you have to rely on learning about industry norms and consider what you want in a job and a company. Here are a few common red flags:

1. No social media presence

While you should never include a link to a personal profile, not having one at all can also raise concerns. In most positions, technology plays an important role, and your ability to maintain a social media account shows a level of comfort employers want to see.

For many creative jobs, such as Web design, photography or writing, it's expected as a way to gain access to a portfolio of your work. Depending on your industry, this can be done through a Flickr account, a blog or even a Twitter feed.

For jobs that rely heavily on your ability to network and develop relationships, such as marketing and sales positions, showcasing your large social following can be an asset. For many online marketing positions, it's a requirement, whether it's stated upfront or not.

Not sure what the standard is for your industry? In almost any job, it's a safe bet to include your LinkedIn profile. (Click here to tweet this thought.) A great place is in your header under your email address. It's unlikely a hiring manager would toss your resume for including it, and you'll avoid being overlooked because someone assumes you're a techno-phobe.

2. Too few job changes

You probably know that job hoppers are frowned upon, but staying in one place for too long can also hurt you. Many employers want applicants with a wide range of experience. They may question the depth of your knowledge of the industry or wonder why you didn't take initiative to find more opportunities for growth.

This is particularly true for any industry that requires a diverse set of skills and expertise, such as technology-related fields and project management positions.

What's a loyal employee to do? If you changed positions or were promoted, break up those different titles into separate sections. Be sure to highlight any changes in department or location as well.

If you haven't moved around, it's even more important to highlight specific accomplishments and continuing education to alleviate any concerns. And before you panic, consider this:

If you've been in one position for a long period of time, it's likely you valued that company’s loyalty to you as well. If a new potential employer thinks loyalty is a weakness, it may not be the right match for you anyway.

3. No hobbies or additional interests

Nine times out of ten, including this section on your resume is a bad idea. Employers don't care about your life outside of work. (Many of them would probably prefer you didn't have one at all.)

That being said, for some jobs, it's crucial to showing why you're the right candidate. If you're applying for a position at a surfboard company, the fact you can ride a wave is definitely relevant.