How to Write Better Job Descriptions with AI

Why Most Job Descriptions Fail

The average job description on a UK job board reads like it was written by a committee of people who have never actually done the job. It is stuffed with corporate jargon, vague requirements, and meaningless phrases like "fast-paced environment" and "competitive salary."

The result? The best candidates scroll straight past it. They have seen the same template a hundred times and it tells them nothing useful about the role, the team, or why they should care.

AI changes this. Not by writing generic descriptions faster, but by helping you write descriptions that actually speak to the candidates you want to attract.

The AI Job Description Framework

Use this 5-part framework every time you write a job description with AI:

1. The Hook: A 2-sentence opening that tells the candidate why this role matters and what makes it different.
2. The Reality: What the person will actually do day-to-day. Not responsibilities, but real activities.
3. The Requirements: Split into genuine must-haves and nice-to-haves. Be honest about which is which.
4. The Offer: Salary, benefits, and working arrangements. Transparency wins.
5. The Team: Who they will work with and what the culture is genuinely like.

The Best AI Prompts for Job Descriptions

Here are the prompts that consistently produce the best results:

Prompt 1: The Complete Job Ad

"Write a job description for a [job title] at a [company type] in [location]. The salary is [range]. The role involves [key activities]. The ideal candidate has [must-have skills]. Write in a professional but conversational tone. Avoid corporate jargon. Include a genuine, honest description of the day-to-day work. Keep it under 500 words."

This prompt works because it forces specificity. The more detail you provide, the better the output.

Prompt 2: Rewrite an Existing Job Ad

"Here is a job description that is not getting enough applications: [paste existing JD]. Rewrite it to be more engaging, specific, and candidate-friendly. Remove jargon, add salary transparency, and focus on what makes this role genuinely appealing. Keep the same role requirements but improve the messaging."

This is the fastest way to improve your existing job ads. The AI identifies the weak spots you cannot see because you are too close to the content.

Prompt 3: Bias Check

"Review this job description for unconscious bias, gendered language, and unnecessarily exclusionary requirements. Suggest specific changes to make it more inclusive without lowering the quality bar: [paste JD]"

This prompt catches things like "rockstar developer" (masculine-coded), "must have 10 years experience" (age discrimination risk), and "native English speaker" (nationality discrimination). These small changes can increase application rates by 20-30%.

Before and After: A Real Example

Before (typical job board listing):

"We are looking for a dynamic and motivated Sales Executive to join our growing team. The successful candidate will have a proven track record of exceeding targets in a fast-paced environment. Competitive salary and benefits package. Apply now."

After (AI-improved version):

"We are hiring a Sales Executive to sell our HR software to mid-market businesses across the UK. Base salary: $35,000 to $42,000 plus uncapped commission (realistic OTE: $55,000 to $65,000). You will manage your own pipeline of 40 to 60 accounts, run product demos over Zoom, and close deals worth $10,000 to $50,000. We are a team of 12, growing fast, and you will be our fourth sales hire. You need at least 2 years of B2B sales experience and genuine curiosity about how technology can solve business problems."

The second version tells the candidate exactly what they need to know. The role, the money, the team, and the expectations. No fluff.

5 Rules for AI-Generated Job Descriptions

1. Always edit the output. AI gives you a strong first draft. It is your job to add the specific details, personality, and company voice that make it unique.
2. Include the salary. Job ads with salaries get 30% more applications. If your client refuses to disclose salary, push back. It costs them candidates.
3. Keep it under 600 words. Candidates on mobile devices (70% of job board traffic) will not read a 1,500-word job ad. Be concise.
4. Test different versions. Use AI to generate 3 versions of the same job ad with different tones. Post them on different boards and track which one gets the best response rate.
5. Update regularly. Do not use the same AI-generated template for every role. Each position is unique, and your job descriptions should reflect that.

The Bottom Line

AI does not write perfect job descriptions. But it writes a much better first draft than most recruiters produce from scratch, and it does it in 30 seconds instead of 30 minutes.

The time you save on writing can be spent on sourcing, building relationships, and closing deals. That is where AI becomes a genuine competitive advantage.

For 20+ job description prompts across different industries and seniority levels, grab the Pro Playbooks guide.