Recruitment Fails: Bad Job Descriptions Don’t Attract The Best Talent

Photo by Jen Theodore on Unsplash

A small logistics firm in Croydon posted an advert last spring for a “warehouse superstar”. Two hundred and thirty CVs arrived in a fortnight. Not one of them matched what the operations director actually wanted, which was a shift supervisor with forklift certification and three years on a high-throughput floor. The advert, breezy and vague, had pulled in everyone from sales graduates to part-time students chasing weekend hours. The search dragged on for another six weeks.

Bad job descriptions are quite expensive failures. They burn recruiter hours, push good candidates towards better-written competitors, and leave hiring managers wondering why nobody decent applied. The fix is unglamorous: a sharper, more honest, more useful job description. This guide breaks down what goes wrong, what the research says, and how to write a job description that earns serious applications from people you’d actually want to interview.

Why trust this guide: the JobsRmine editorial team reviews live UK job adverts across logistics, professional services, healthcare, and technology, and we cross-reference the patterns we see against published research from the CIPD, the ONS, Indeed Hiring Lab, and LinkedIn Talent Solutions.

Why the job description is the single most important document in hiring

Every step in recruitment is downstream of the job description. The longlisting, the screening calls, the interviews, the offer. Get the advert wrong, and you spend the next two months filtering noise.

The UK labour market amplifies the cost. Office for National Statistics data across 2024 and 2025 has consistently shown vacancies sitting above pre-pandemic averages, with candidates in skilled roles holding genuine choice. The CIPD’s Resourcing and Talent Planning Survey has reported for several years that most UK employers struggle to attract suitable applicants, and job description quality alongside salary disclosure are repeatedly named as the practical levers organisations control directly.

The job description is also the document an unhappy hire will quote back at you nine months later. It sets the boundaries of the role, the standard for performance, and the basis of the employment relationship long before any formal contract is signed.

What a good job description actually does

Your advert has two jobs. The first is winning attention in a crowded feed. LinkedIn’s published data on member behaviour suggests candidates spend around 14 seconds reviewing a job post before deciding whether to apply or scroll on. Your title, the first three lines, and your salary figure carry almost all of that weight.

The second job is setting honest expectations. Once a candidate clicks apply, the description becomes the implicit agreement between you. It tells them what they’ll be doing on a Tuesday morning, who they’ll report to, what success looks like in six months, and what they’re being paid to do it. Misrepresent any of that,t and your retention figures will tell the story for you.

How to write a job description: the seven elements everyone needs

A useful job description, regardless of sector, contains seven non-negotiable elements. Treat this as the structural skeleton beneath the prose.

1. Job title. Use the title the market actually searches for, not an internal one. “Customer Success Manager” pulls applications; “Client Happiness Wizard” does not.
2. Purpose statement. One or two sentences explaining why the role exists and what it contributes to the business.
3. Summary and scope. A short paragraph covering the shape of the role, its remit, and where it sits in the team.
4. Key duties. The work the person will actually do, week to week, is written in concrete verbs.
5. Responsibilities in priority order. The outcomes the post-holder owns, listed from most to least important, so candidates can self-assess against what matters.
6. Reporting and working relationships. Who they report to, who reports to them, and the teams they collaborate with regularly.
7. Salary and benefits. Pay range, pension, holiday entitlement, hybrid or remote arrangements, and any genuinely distinctive perks.

If a section feels padded, cut it. If a section is missing, candidates will assume the worst.

Five job description mistakes that cost you good candidates

The basics of writing job adverts get overlooked even at well-run companies. These are the failures we see most often when auditing live UK postings.

Too vague

A job description that could describe four different roles will attract candidates for all four. Generic phrasing such as “dynamic team player who can wear many hats” tells a candidate nothing about whether they’d be doing data analysis or answering phones. Indeed Hiring Lab research has repeatedly shown that postings with specific responsibilities and concrete day-to-day tasks generate stronger application quality than those padded with abstract competencies.

Poor grammar and writing quality

Typos and clumsy sentences signal something about how the company operates. Surveys reported in UK HR press over the past decade have consistently found that a meaningful share of jobseekers will abandon an application after spotting basic errors in the advert. The damage runs deeper than aesthetics. It shifts how candidates perceive your standards, your attention to detail, and what you’ll be like as a manager.

Generic and lifeless tone

Boilerplate openings such as “the successful candidate will be responsible for” are invisible. Candidates skim past them. LinkedIn Talent Solutions guidance has consistently shown that job posts written in plain, specific language outperform corporate-tone equivalents on both click-through and apply rates. If your advert reads like every other advert on the board, the only candidates you’ll attract are the ones applying to every other advert on the board.

Inflated or unrealistic requirements

The “10 years of experience in a 5-year-old technology” trope is real, and it’s expensive. A widely cited Harvard Business Review piece by Tara Sophia Mohr in 2014, drawing onHewlett-Packardd internal data, found that women tended to apply only when they met around 100 per cent of the listed criteria, while men applied at roughly 60 per cent. Stuff a job description with nice-to-haves dressed up as essentials and you systematically narrow your pipeline, often along gender lines you never intended.

Missing pay information

Adverts without a salary figure consistently underperform. Analysis by Indeed Hiring Lab covering millions of postings has found that listings including a salary attract substantially more applicants than those without, with directional uplifts often cited in the range of 30 to 50 per cent. Beyond conversion, salary transparency is an inclusion question; candidates from less networked backgrounds rely on the figure to know whether the role is worth pursuing.

How to write a job description that attracts the right CVs

Once you’ve cleared the obvious mistakes, the upgrade is in the craft.

Write for the 7-second scan.

Front-load the post. The job title, the first sentence, the salary band, and the location should answer the candidate’s main question (is this worth my time?) before they decide to scroll. Lead with purpose, not company history.

Lead with what the role contributes.

“You’ll own the rollout of our new CRM across three regional offices” reads stronger than “the post-holder will be responsible for CRM-related activities”. Candidates respond to outcomes. Duty lists alone rarely convert.

Use inclusive, bias-checked language.

Research published in the Journal of Personality and Social Psychology by Gaucher, Friesen, and Kay in 2011 demonstrated that masculine-coded words such as “aggressive”, “dominant”, and “competitive” in job adverts reduced women’s interest in applying, independent of their qualifications. Tools,s including Textio and the free Gender Decoder, were built directly on this evidence. An inclusive job description audits for coded language, jargon, and unnecessary qualifications that screen out capable applicants. The Equality and Human Rights Commission sets out the legal limits around protected characteristics under the Equality Act 2010.

Be transparent about pay.

UK candidates increasingly expect a salary band. Adzuna’s published reporting on UK postings has tracked a steady rise in adverts including pay information, and CIPD survey data suggests employers who disclose pay attract a wider, more diverse field. If you genuinely cannot post a range, signal the band at first contact rather than wait until the offer stage.

Separate must-haves from nice-to-haves

A typical job advert lists 12 requirements; the hiring manager privately cares about four. Be honest with yourself about which are deal-breakers. If a skill can be learned in three months on the job, it belongs in the nice-to-haves. This single edit will attract better candidates almost immediately, because the people you most want to hear from are usually the ones screening themselves out at the requirements list.

Show employer brand through specifics.

Glassdoor and Indeed company review data consistently shows candidates trust concrete details more than slogans. “We run quarterly hack weeks and protect Fridays for deep work” lands. “We have a vibrant, dynamic culture” does not.

Mind accessibility and reading age

The Plain English Campaign recommends writing for a reading age of around 9 to 11 for general-audience text. Short sentences, no jargon, and a logical heading structure make your post more accessible to neurodivergent readers, non-native English speakers, and anyone reading on a phone between meetings. If you want a starting framework for a job description template that UK employers can use, our job advert template follows these conventions.

A practical checklist before you hit publish

Run through every yes/no before the post goes live. If any answer is no, the advert isn’t ready.

• Does the job title match what candidates actually search for?
• Is the salary or salary band visible above the fold?
• Have you stated the location and any hybrid or remote arrangement clearly?
• Does the first paragraph explain why the role exists?
• Are responsibilities listed in order of priority?
• Have you separated must-have skills from nice-to-haves?
• Have you removed every qualification that isn’t genuinely necessary?
• Have you checked for gendered or otherwise coded language?
• Is the reading age accessible, with short sentences and plain words?
• Have you proofread it twice, ideally reading it aloud?
• Is the company described in specifics rather than slogans?
• Have you stated what success looks like at 3, 6, or 12 months?
• Is the application process clear, including timelines and contact?
• Have you complied with the Equality Act 2010 on protected characteristics?
• Would you, honestly, apply to this role if you weren’t the one writing it?

The bottom line

Recruitment quality compounds. The candidates you hire become the people who write your next job description, sit on your next interview panel, and shape what the role looks like in three years. A serious organisation treats every job advert as a small piece of editorial about the company, written for an audience of one. Spend the extra hour. Run the language check. Post the salary. The reward is a hiring pipeline that quietly stops costing you the people you most wanted to meet. For more on the wider recruitment funnel, see our hiring resources.

Frequently asked questions

How long should a job description be?

Aim for 500 to 800 words. LinkedIn Talent Solutions guidance and Indeed Hiring Lab analysis both suggest postings in this range attract the strongest application numbers. Anything under 300 words usually lacks the information candidates need, and anything over 1,000 risks being skimmed past.

What should you never include in a job description?

Avoid age limits, marital status, requests for a photograph, or any wording that touches a protected characteristic under the Equality Act 2010. Drop slogan language (“ninja”, “rockstar”), unverified superlatives, and any requirement you cannot justify against the role. The Equality and Human Rights Commission publishes plain guidance on lawful wording.

Is it illegal to omit salary in a UK job advert?

No, omitting salary is not currently illegal in the UK, though it is increasingly considered poor practice. Several large UK employers and recruitment platforms now publish salaries by default, and pay transparency legislation across the EU and parts of the United States is shifting the wider market in that direction.

How do you write a job description for a role you’ve never hired for before?

Start by interviewing the person who will manage the new hire, and, where possible, two or three professionals already doing the role at peer companies. Look at three live competitor adverts and note what they share. Draft the responsibilities first, the requirements second, and the title last. Test it with one trusted candidate-side reader before publishing.

What’s the difference between a job description and a job advert?

A job description is the internal document defining the role: duties, responsibilities, reporting lines, and competencies. A job advert is the candidate-facing version, written to attract applications. They overlap, but the advert is shorter, sharper, and written in the voice of the employer rather than HR.