Are you making these 5 common resumé and interview mistakes?

Are you making these 5 common resumé and interview mistakes?
SEEK content teamupdated on 05 September, 2025
Share

When you’ve found the perfect job to apply for, it’s time to present yourself and your skills in the best way possible.

But there are common mistakes people make when job hunting which can prevent them from making a great impression.

Find out the five mistakes to avoid and give yourself the best chance of landing the job.

1. Using a resumé that’s too long

Resumés that read like essays are off-putting for many hirers. “These days, resumes are more like a snapshot of your career, with recruiters only wanting a two to three page resume at most (up to four pages possibly for candidates in senior leadership roles) that highlights only the most relevant skills, achievements and roles,” says Leah Lambart, Career and Interview Coach at Relaunch Me.

“Applying for roles with a resume longer than four pages will put recruiters off as they just don’t have the time to review those additional pages of content.”

“It's great to know what you're responsible for, but if I don't know what you achieved, who cares what you're responsible for,” he says. “Achievements are as important as responsibilities, and they need to be relevant for the role you're applying for. Likewise, if you've got jobs that aren’t relevant for the role, you don't need to include them in your resumé.”

2. Not including a cover letter

Leaving out a cover letter from your application can send a message that you’re not serious about the job. It also makes it harder for you to stand out from the other people who apply. And it doesn’t go unnoticed – many hirers say that not receiving a cover letter frustrates them.

A compelling cover letter is a short, clear summary of who you are and why you’re suitable for the job you’re applying for. “It's almost a guide for the hirer of where to go on your resumé to find the information that you want them to find,” Grace says.

Because cover letters focus on what makes you a good fit for the role, he explains, “you should write an individual cover letter for every single role”.

3. Being late to interviews

It’s an obvious one – but an important one to avoid. When it comes time to interview, lateness is rarely tolerated.

“When you’re looking to hire you want people who are excited to join, and hirers assume you’re going to show your best when you come to an interview,” Grace says. “If you turn up late it’s not a great start.”

Whether your interview is in person or online, Lambart recommends planning ahead. “Ensure that you allow plenty of extra time for travel, parking and working out where to go when you arrive,” she says. “A practice run is a good idea if it’s an important interview."

For digital interviews, ensure your camera is set up correctly, that you have good lighting and that there are no distractions or mobiles ringing in the background,” Lambart continues. ”Most importantly, allow time to get the tech setup correctly. This will ensure you maintain professionalism and reduce stress.”

4. Not selling yourself

Talking yourself up can feel unnatural if you’re not used to job interviews. Don’t be afraid to highlight your skills and experience, and present yourself in a confident way (even if you’re not feeling confident on the inside!)

Lambart says aiming for a balance between confidence and self-awareness is best. You can show that you’re self-aware and willing to improve when an interviewer asks you about your weaknesses, she explains. “They are looking for you to demonstrate real self-awareness – that you appreciate that you have areas you need to work on, and that you’re committed to doing so.”

Grace agrees: “Being very humble, but honest, is the way to go.” It’s ok to mention that you’re also considering other opportunities, Grace adds. Just do so briefly, and where relevant – such as when you’re discussing when you’ll hear back from the employer.

5. Being unprepared

Turning up to an interview without doing any research about the job or the business shows hirers you’re not serious about the job.

“There is an expectation that candidates will do some research about the company and the role prior to the interview,” Lambart says.

Showing that you’ve found out about the company’s size and structure, the products or services it offers, and their values demonstrates that you’re excited about the job.

Some simple searching online can get you up to speed. The company’s own website and social media pages are a good place to start, but Grace suggests searching for news articles, podcast interviews or videos for extra information. “Many companies have YouTube videos about their products and services,” he says.

Lambart also recommends considering key skills required for the role. These are often listed in the job description, and preparing examples or stories of where you’ve demonstrated those skills successfully in more recent roles.

The process of going for a job can take a lot of time and effort, so it’s worth doing all you can to make a great impression. Avoid making mistakes that frustrate employers by starting with a concise resumé and a cover letter designed for the job. Follow that up by being on time, prepared and open to improvement in an interview, and you’ll be giving yourself the best chance of success.

Read more 

More from this category: Applying for jobs

Explore related topics

Choose an area of interest to browse related careers.

Subscribe to Career Advice

Get expert career advice delivered to your inbox.
By providing your personal information, you agree to the Collection Notice and Privacy Policy. You can unsubscribe at any time.