5 Social Media Mistakes That Can Cost You a Job Opportunity

In South Africa and all around the world, social media is a big part of everyday life. People use Facebook, TikTok, Instagram, Twitter (now called X), and WhatsApp to chat, share, and even do business. But did you know your social media posts can cost you a job? Yes – many employers now check a person’s online profile before hiring them. If they find something negative, they might not call you for an interview or they may choose someone else.

Thank you for reading this post, don't forget to subscribe!

This guide explains 5 common social media mistakes people make, especially in South Africa, and how you can fix or avoid them to protect your job opportunities.

Employers want to know if you’re a good fit for their team. They also want to make sure you won’t bring problems to the workplace. That’s why many South African companies check social media. Here’s what they look for:

Personality and behaviour: How you speak, treat others, and handle stress.
Professionalism: Do you post responsibly or just complain online?
Red flags: Things like swearing, hate speech, or wild partying.
Cultural fit: Do your values align with the company?

Mistake #1: Posting Offensive or Discriminatory Content

In South Africa, with our diverse cultures, languages, and races, it’s especially important to treat others with respect online.

Examples of what NOT to post:

Rude jokes about race, religion, gender, or disability.
Hate speech or strong political opinions that attack others.
Posts that support violence or bullying.

Real-life consequences:

In 2016, Penny Sparrow lost her job and faced court charges for a racist Facebook post. Many others have faced the same fate.

Tip:

Before posting anything, ask yourself: “Would I say this in a job interview?” If not, don’t post it.

Mistake #2: Complaining About Work or Colleagues Online

Even if you’re upset about work, complaining online is never a good idea.

Why it’s a problem:

Shows lack of maturity and professionalism.
Employers worry you might gossip about them too.
It creates a bad first impression.

Examples:

“My boss is useless. I hate my job!”
“This company is trash, they don’t care about us!”

Tip:

Handle work issues privately or through the right channels like HR – not on social media.

Pictures or videos of wild parties, nudity, drug use, or heavy drinking can quickly destroy your job chances.

Why it’s a problem:

Employers may think you are irresponsible or not serious.
It can affect how customers or clients view the company.

Examples:

Clubbing photos with alcohol and rude hand signs.
TikTok videos doing dangerous challenges or fighting.
Selfies with weed, pills, or other illegal activities.

Tip:

Set your privacy settings on Facebook and Instagram. But remember: if it’s online, it can always be shared.

Mistake #4: Using Unprofessional Language or Poor Grammar

Even if you’re just chatting with friends, future employers might read your posts.

Why it’s a problem:

Poor spelling and grammar make you seem careless.
Too much slang or rude words can seem uneducated.
It can make employers question how you’ll communicate at work.

Tip:

Use spell check. Avoid using all caps or abbreviations like “WTF”, “IDK”, or “SMH” when you’re speaking about serious topics.

Mistake #5: Oversharing Personal Information

Sometimes we post too much – where we live, our ID number, or things that are better kept private.

Why it’s a problem:

Scammers can use that information to steal from you.
Employers may judge you based on things like religion or political views (even if they shouldn’t).

Examples:

“I just got my new SASSA card – here’s my number!”
“Here’s my baby daddy’s house, I’m coming for him!”

Tip:

Think before you post. Keep private details off public platforms. Also, check your privacy settings.

If you’re looking for a job, take one hour and go through all your profiles. Here’s how:

Google yourself: See what pops up.
Delete or hide any old posts that are embarrassing or rude.
Update your profile picture – choose one that’s friendly and neat.
Make your account private, especially for personal accounts.
Ask a friend or mentor to check your profile and give feedback.

What to Post Instead – Build a Positive Online Image

Social media can help you get a job if used wisely!

Good things to post:

Volunteer work or community involvement.
Short stories about your success (e.g. “Finished a sewing course!”).
Job-related achievements (e.g. “Look at this cupboard I built at work.”)
Inspirational quotes, Bible verses, or educational tips.
Professional headshots and CV updates on LinkedIn.

South African Laws and Your Rights

Even though employers can check your public profiles, you still have rights.

POPIA (Protection of Personal Information Act) protects your personal data.
Labour Relations Act says you can’t be fired unfairly without a proper process.
Your privacy matters – employers should not ask for your password.

Still, public posts can be seen and judged – so be smart about what you share.

If you need a job, don’t let social media stand in your way. Fix your profiles, delete anything dodgy, and use the internet to show off your best self. Whether you live in the township, suburbs, or rural areas – your digital footprint is your new CV.

5 Social Media Mistakes That Can Cost You a Job Opportunity