I have supervised projects to develop job descriptions for hiring and, sometimes, for job evaluation. The biggest challenge is the quality of job descriptions, which mainly emanates from the fact that most job descriptions you see are self-reported by incumbents with little to no validation. Some are copied from the internet with no context for the organization needing them. In my over two decades in consulting and line human resources function, managers do not take the preparation of job descriptions seriously. The excuses I hear most often are that they have more pressing priorities.
The High Cost of a Poorly Written Job Description
Research suggests that attitude is costing organizations millions of dollars every year. A poorly written job description does not just attract the wrong candidates. It actively discourages the right ones, extends the time it takes to fill a role, inflates recruiting budgets, and in some jurisdictions now exposes employers to legal liability. I can testify to this finding, as I worked on a project and witnessed it firsthand on one of my biggest consulting projects, which reviewed job adverts and reviewed over a million job applicants through various job descriptions for an international organization.
The 2019 LinkedIn Global Talent Trends report found that companies with strong employer branding, anchored by clear and compelling role descriptions, reduced their cost per hire by up to 50 percent. Poor job descriptions yield a wide funnel of low-quality applicants. Organizations then spend disproportionate recruiter time screening unqualified applicants, which drives up the cost per hire.
The diversity problem is equally serious. A landmark 2011 study published in the Journal of Personality and Social Psychology demonstrated that job descriptions containing masculine-coded language significantly reduced the number of women who applied, even when those women were equally qualified. The language in a job description is not neutral. It is a filter. Calibrate it carelessly, and entire talent pools self-select out before a recruiter reads a single resume.
Legal exposure compounds the business risk. In the United States, the Americans with Disabilities Act requires that job descriptions distinguish between essential and marginal job functions. In the European Union, the 2023 Pay Transparency Directive now requires employers to disclose salary information before the first interview. Getting the job description wrong is no longer just an HR inconvenience. It can be a compliance failure.
This guide walks through every element of a high-quality, legally sound, inclusive job description. It includes worked before-and-after examples, a complete job description template you can adapt immediately, a breakdown of US state pay transparency laws, and guidance on using AI tools safely in this process.
What Is a Job Description? Definition and Purpose
A job description is an externally facing hiring document that communicates to prospective candidates what a role involves, what qualifications are required, what the organization offers in return, and the conditions under which the work is performed. It is what gets posted on a job board. It is the first substantive communication a candidate has with a future employer.
A job specification, by contrast, is an internal HR record that documents in detail the knowledge, skills, abilities, and other characteristics (KSAOs) an incumbent must possess to perform the job successfully. The specification tends to be more granular and technical than the description. It is used for psychometric test selection, structured interview design, and performance management.
The distinction matters legally. Under the Americans with Disabilities Act (ADA), an employer who conflates the two documents risks using internal technical criteria as screening requirements in the hiring process, which may constitute unlawful discrimination against candidates with disabilities. The ADA guidance from the Equal Employment Opportunity Commission is explicit: a job description that accurately describes the essential functions of the position, prepared before advertising the vacancy, can be used as evidence that those functions are genuine and not pretextual.
Beyond hiring, job descriptions serve several legitimate organizational purposes. They anchor performance reviews by providing an agreed baseline of what the role is supposed to deliver. They are the primary input into job evaluation, the systematic process by which organizations establish the relative worth of roles to set pay structures. They provide the foundation for training needs analysis. When designed well and kept current, a job description is a living document rather than a filing formality.
The Legal Framework for Job Descriptions
Americans with Disabilities Act (United States)
The Americans with Disabilities Act requires that employers distinguish between essential functions (duties that are fundamental to the position) and marginal functions (duties that are incidental or could be reassigned). This is not a best practice. It is a federal legal requirement. An employer who lists a marginal function as a requirement in a job description and then uses it to screen out a candidate with a disability may be liable for disability discrimination. The EEOC guidance specifies that a well-prepared, pre-advertising job description that identifies essential functions carries significant evidentiary weight if a dispute arises.
In practice, this means that every job description should label each duty as essential or indicate the approximate percentage of time devoted to it. Physical requirements such as lifting, standing, or travel must be listed only when they are genuinely essential to job performance, not assumed by convention.
Fair Labor Standards Act (United States)
The Fair Labor Standards Act governs minimum wage, overtime pay, and exemption classifications. Whether a role qualifies as exempt from overtime requirements under the FLSA depends partly on the actual duties performed. A job description that accurately reflects the decision-making authority, supervisory scope, and professional judgment exercised by the incumbent helps HR departments make and defend exemption classifications. Misclassifying a role as exempt when the job description reveals primarily routine, non-managerial tasks exposes the employer to back-pay liability.
EU Pay Transparency Directive 2023
The EU Pay Transparency Directive (Directive 2023/970/EU) entered into force in June 2023 and must be transposed into national law by EU member states by June 2026. The directive requires employers to provide job applicants with information about the initial pay or pay range for the advertised position before the first interview. Employers are prohibited from asking candidates about their current or previous salary. Organizations with 100 or more employees are additionally required to report gender pay gap data annually. The directive fundamentally changes how job descriptions and postings operate across the EU, moving salary disclosure from a courtesy to a legal obligation.
UK Equality Act 2010
Under the Equality Act 2010, any requirement included in a job description that indirectly disadvantages candidates from a protected group must be objectively justifiable as a proportionate means of achieving a legitimate aim. A requirement to hold a UK driving license that disadvantages candidates with certain disabilities, a demand for a degree qualification when the job could be performed by someone without a degree, or a specification for a particular number of years of experience that disadvantages younger applicants are all potentially challengeable if they cannot be shown to be genuinely necessary for the role.
The Inclusive Language Problem — What the Research Says
The Gaucher, Friesen, and Kay (2011) study remains one of the most consequential pieces of research in recruitment psychology. Across a series of studies, the researchers demonstrated that job descriptions in male-dominated occupations contained significantly more masculine-coded language than descriptions in female-dominated occupations, and that this language lowered the sense of belonging felt by women reading those descriptions. Lower belonging translated directly into lower application rates among equally qualified female candidates. The men who read the same descriptions showed no such reduction in interest.
This finding has been replicated in subsequent work. A 2016 study confirmed that gendered language in job advertisements influenced career aspiration and application intentions, with effects extending beyond gender to include candidates from other underrepresented groups who encountered language signaling cultural exclusion.
Masculine-Coded Language to Avoid and Gender-Neutral Alternatives
| Avoid (Masculine-Coded) | Use Instead (Gender-Neutral) |
| Aggressive growth targets | Ambitious growth targets |
| Dominate the market | Lead the market |
| Ninja / Rockstar / Guru | Expert / Specialist / Senior |
| Competitive | Results-oriented / Achievement-focused |
| Decisive | Makes sound judgments under pressure |
| Fearless | Confident in ambiguous situations |
| High-energy | Motivated / Self-directed |
| Driven | Committed / Purposeful |
| Strong | Demonstrated / Proven |
Age-Neutral Language
Phrases such as "recent graduate," "digital native," and "high-energy candidate" carry implicit age assumptions. "Recent graduate" may constitute age discrimination in jurisdictions where age is a protected characteristic and the role does not genuinely require new academic knowledge. Replace these with experience-defined language: "a foundation of analytical skills typically gained through a degree or equivalent practical experience" is defensible; "fresh graduate" is not.
Disability-Inclusive Language
Remove physical requirements that are not genuinely essential. If the job description lists "ability to lift 25 lbs" for a software engineer role, it will not survive ADA scrutiny. Where physical requirements are genuine, state them specifically and flag them as essential functions. Use "able to" rather than "must be able to" where possible; minor language signals compound into a cumulative tone of exclusion. The aim is a description that a qualified person with a disability reads and concludes the requirements reflect the actual job, not assumptions about who "looks like" someone who would do it.
Reducing the Requirements List
Research on self-efficacy shows that people are less likely to apply for roles when they do not believe they meet the stated requirements, meaning job descriptions act as a psychological filter, not just a technical one. Experimental evidence also shows that how requirements are framed can significantly reduce applications from otherwise qualified candidates, even when the job itself has not changed, while broader labor market research confirms that employers frequently overstate requirements, unnecessarily shrinking the talent pool. The practical implication is that long and rigid requirement lists increase self-screening and exclude capable candidates before selection even begins, so organizations should clearly separate essential criteria from preferred qualifications and keep the essential list tightly focused on true threshold requirements rather than exhaustive checklists.
Step-by-Step Guide to Writing a Job Description
Step 1 — Conduct a Job Analysis
A job description is only as accurate as the information that went into it. Job analysis is the systematic process of gathering information about what a job involves, what outputs it produces, and what characteristics an incumbent must have to perform it well. The US Department of Labor's O*NET system provides publicly available, research-based task and KSAO inventories for hundreds of occupations and is an appropriate starting point, especially for roles where incumbents are unavailable to consult. Supplement O*NET data with structured interviews with current incumbents and their managers, and where appropriate, direct observation of the work.
A robust job analysis identifies three to five subject matter experts who rate each collected task for frequency (how often it is performed), importance (how critical it is to overall job performance), and whether it is essential or marginal. Tasks rated as both important and frequent are almost always essential functions for ADA purposes.
Step 2 — Define Essential Versus Marginal Functions
Once the task list is rated, sort duties into essential and marginal categories. The EEOC's ADA guidance identifies three tests for whether a function is essential: the position exists to perform that function; there are a limited number of other employees available to perform it; or the function is so highly specialized that the incumbent was hired specifically for that expertise. Document your rationale. If a dispute arises, the documentation of how you determined essential functions is evidence of good faith.
Step 3 — Write the Job Title
The job title must be market-aligned, not internally coded. Internal grade labels such as "Band 4 Analyst" or "P3 Manager" mean nothing to external candidates and reduce the discoverability of the posting in job board search algorithms. Use the title that matches what candidates searching for this type of role would type into a search bar. Check competing job postings and O*NET occupational titles as benchmarks. Keep the title to four words or fewer.
Step 4 — Write the Company Overview
Two to three sentences. Answer the question a candidate is asking before they apply: why does this organization exist, what makes it a place worth working, and what kind of people succeed here? Avoid boilerplate corporate language. "We are a fast-growing company" and "we are passionate about our mission" communicate nothing. Be specific: industry, scale, mission, and one genuinely differentiating cultural fact.
Step 5 — Write the Role Summary Paragraph
One paragraph, three to five sentences. Describe what the role does, why it matters to the organization's goals, who it works with, and what success looks like in the first twelve months. The role summary should be written for the candidate reading it at 8pm after a long day, not for a committee reviewing a compliance document. If the candidate cannot tell in thirty seconds whether this role is relevant to them, the summary has failed.
Step 6 — List Responsibilities
Use the structure: action verb plus task plus purpose. For example: "Designs structured interview frameworks [action + task] to ensure selection decisions are based on validated, job-relevant evidence [purpose]." Limit the list to eight to ten responsibilities. Longer lists dilute attention and signal poor role clarity. Sort by order of importance, not alphabetically or chronologically. Each line begins with a present-tense verb.
Step 7 — List Requirements (Essential and Preferred Separately)
Separate essential requirements from preferred qualifications under two clearly labeled headings. Essential requirements are the minimum a candidate must have to be considered. Preferred qualifications are the profile of the stronger candidate, but not the screening threshold. This separation reduces the self-selection-out effect documented in the self-efficacy research and makes the KSAO list legally defensible.
Step 8 — Include the Salary Range
In the EU, salary disclosure before the first interview is now a legal requirement under Directive 2023/970/EU. In the United States, salary disclosure is legally required in Colorado, California, New York, Washington, Connecticut, Nevada, Maryland, Rhode Island, Hawaii, and Illinois (details in Section 7 below). Beyond compliance, research published in SHRM's HR Magazine found that salary transparency in job postings increases the proportion of qualified applicants, reduces salary negotiation friction, and shortens time-to-offer. Even in jurisdictions where it is not yet required, including a range is becoming a competitive recruitment practice.
Step 9 — Add Benefits and Working Arrangements
Candidates are comparing total employment value propositions across multiple postings simultaneously. List the benefits that are meaningfully differentiating: remote or hybrid work arrangements, professional development budgets, health and wellness benefits, leave policies, and equity or bonus structures. Do not list generic benefits such as "competitive salary" that every posting claims. Be specific.
Step 10 — Run the Inclusive Language Audit
Before publishing, run the draft through a structured audit. Check for masculine-coded language using the word list in Section 4.1. Verify that every physical requirement is a genuine essential function. Confirm that requirements are separated into essential and preferred. Verify the salary range is included. Read the entire description aloud: if it sounds like a compliance document rather than a compelling invitation to apply, revise it.
Worked Examples — Before and After
Example 1 — Operations Manager
Before (Poor)
Job Title: Ops Manager
We are looking for a driven, high-energy rockstar to dominate our operations. The ideal candidate is aggressive, competitive, and able to work 60+ hours a week. Must have 10+ years of experience. MBA required. Must be able to lift heavy boxes. Will report to the COO.
After (Improved)
Job Title: Operations Manager
Company: [Company Name] designs and distributes sustainable packaging solutions for consumer goods brands across 18 markets. We are a team of 400 people committed to reducing plastic waste without compromising supply chain performance.
Role Summary: The Operations Manager leads end-to-end supply chain processes across our three distribution centers, ensuring on-time delivery, cost efficiency, and regulatory compliance. This role is central to our growth plans for the next three years and works closely with the Head of Logistics and the Commercial Director.
Essential Responsibilities (each labeled as Essential Function):
• Designs and implements operational workflows that reduce cost per unit by an agreed annual target.
• Manages a team of 12 logistics coordinators, conducting structured performance conversations quarterly.
• Monitors key operational metrics daily and presents a weekly dashboard to the COO.
• Leads compliance with health, safety, and environmental regulations across all three sites.
• Negotiates contracts with third-party logistics providers within a delegated authority of $500,000.
Essential Requirements:
• Demonstrated experience managing multi-site logistics or distribution operations.
• Track record of delivering measurable cost reduction or efficiency improvement in a supply chain context.
• Experience leading teams of eight or more people through direct supervision.
Preferred Qualifications:
• Degree in Supply Chain Management, Engineering, Business, or an equivalent field.
• Familiarity with ERP systems such as SAP or Oracle.
Salary: $95,000 to $115,000 per year, plus an annual performance bonus of up to 15%. Full benefits package included.
Example 2 — HR Generalist
Before (Poor)
We need a dynamic HR person who is passionate about people and can hit the ground running. You will handle all HR things. Must be a team player. Min 3 years HR exp. Degree required.
After (Improved)
Job Title: HR Generalist
Company: [Company Name] is a financial services firm employing 650 professionals across offices in New York, Chicago, and Atlanta. We invest in our people's development and offer structured career pathways from day one.
Role Summary: The HR Generalist supports the full employee lifecycle for a client group of approximately 200 employees across two business units. Reporting to the HR Business Partner, this role is the first point of contact for employee relations matters, recruitment coordination, and policy guidance.
Essential Responsibilities:
• Manages end-to-end recruitment for non-managerial roles, from job posting through offer, averaging 15 to 20 open requisitions at any time.
• Responds to employee relations inquiries within one business day and escalates complex cases to the HR Business Partner with a documented summary.
• Maintains accurate HRIS records for the client group and produces monthly headcount and attrition reports.
• Coordinates the onboarding program for all new joiners in the client group, including 30-, 60-, and 90-day check-ins.
Essential Requirements:
• A minimum of two years of experience in an HR coordination or generalist role.
• Working knowledge of US employment law, including FMLA, ADA, and FLSA.
• Proficiency in at least one HRIS platform.
Preferred Qualifications:
• PHR or SHRM-CP certification.
• Experience in financial services or a similarly regulated industry.
Salary: $62,000 to $75,000 per year. Hybrid working arrangement: three days in office, two days remote.
Example 3 — Software Engineer
Before (Poor)
Looking for a coding ninja who bleeds Python. You will crush bugs and ship features. 5 years experience required. CS degree mandatory. Must be able to sit at a desk for 8 hours.
After (Improved)
Job Title: Software Engineer (Backend)
Company: [Company Name] builds data infrastructure for mid-market healthcare organizations. Our platform processes claims data for over three million patients annually. We are a fully remote team of 85 engineers distributed across North America and Europe.
Role Summary: The Software Engineer (Backend) designs and maintains the APIs and data pipelines that sit at the core of our platform. You will work in a two-week sprint cycle alongside two other backend engineers and a product manager, with direct influence over technical architecture decisions.
Essential Responsibilities:
• Designs, builds, and maintains RESTful APIs in Python (FastAPI or Django REST Framework).
• Writes unit and integration tests to maintain code coverage above 85 percent.
• Participates in code review as both author and reviewer, providing constructive written feedback within 48 hours.
• Investigates and resolves production incidents, documenting root cause and remediation steps.
Essential Requirements:
• Demonstrated ability to design and ship backend services in Python in a production environment.
• Experience working with relational databases (PostgreSQL preferred) and writing optimized queries.
• Familiarity with CI/CD pipelines and cloud hosting environments (AWS or GCP).
Preferred Qualifications:
• Experience in a healthcare data or health-tech context.
• Familiarity with HIPAA compliance requirements for data handling.
Salary: $130,000 to $155,000 per year. Fully remote. Stock option grant included.
US State Pay Transparency Laws — 2026 Summary
The following US states now require employers to disclose salary ranges in job postings. Requirements vary by employer size, whether the role is remote, and whether the posting is for an internal or external audience. This table reflects the law as of April 2026. Organizations hiring across state lines should confirm the current status with employment counsel, as additional states are actively considering similar legislation.
| State | Effective Date | Key Requirements |
| Colorado | January 1, 2021 | Salary range, benefits, and other compensation required in all job postings. Employers with any Colorado-based employees must comply. |
| California | January 1, 2023 | Employers with 15+ employees must include pay scale in job postings. Employers with 100+ employees must submit pay data reports. |
| New York State | September 17, 2023 | Employers with 4+ employees must disclose a good-faith salary range in job postings. Applies to remote roles if the position can be performed in New York. |
| Washington State | January 1, 2023 | Employers with 15+ employees must include wage scale or salary range and a general benefits description. |
| Connecticut | October 1, 2021 | Employers must provide salary range upon request and in any job posting. All employers regardless of size. |
| Nevada | October 1, 2021 | Employers must provide wage range to applicants after an initial interview, or upon request. |
| Maryland | October 1, 2020 | Employers must provide wage range upon request. Applies to employers with 15+ employees. |
| Rhode Island | January 1, 2023 | Employers must disclose pay range in job postings and upon request. All employers. |
| Hawaii | January 1, 2024 | Employers with 50+ employees must include hourly rate or salary range in job postings. |
| Illinois | January 1, 2025 | Employers with 15+ employees in Illinois must include pay scale and benefits in job postings. |
Complete Job Description Template
The template below is a fully worked example, not a placeholder document. Adapt every section to your specific role. The structure, sequence, and labeling of sections follow the legal and evidence-based guidance set out in this article.
JOB TITLE: Marketing Manager
DEPARTMENT: Marketing
REPORTS TO: Chief Marketing Officer
LOCATION: Chicago, IL (Hybrid — 3 days in office)
SALARY RANGE: $85,000 to $105,000 per year, plus up to 12% annual performance bonus
EMPLOYMENT TYPE: Full-time, Exempt
About the Company
[Company Name] is a B2B SaaS company providing project management tools to professional services firms. Founded in 2016, we serve 3,200 client organizations across 28 countries. We are a team of 280 people, 60 percent of whom work remotely. Our culture values evidence-based decisions, direct communication, and autonomy with accountability.
Role Summary
The Marketing Manager leads demand generation and content strategy for [Company Name]'s North American market. Reporting directly to the CMO, this role owns the marketing pipeline contribution target of $4.2M in annual qualified pipeline, manages an external agency relationship, and supervises a team of two marketing coordinators. This is a high-autonomy role with direct budget authority of $600,000 annually.
Essential Responsibilities
• Develops and executes the quarterly content calendar across blog, email, LinkedIn, and paid channels, aligned to product launch timelines and sales pipeline targets.
• Manages the marketing attribution model and reports weekly pipeline contribution metrics to the CMO and VP of Sales.
• Leads the agency relationship, briefing campaigns, reviewing deliverables, and managing the retainer budget of $180,000 per year.
• Supervises two Marketing Coordinators, setting quarterly objectives, providing weekly one-to-one coaching, and conducting formal performance conversations twice per year.
• Designs and executes A/B testing programs on landing pages, email subject lines, and paid ad copy, documenting and sharing findings with the broader team.
• Coordinates with the Product team to develop go-to-market messaging for two to three new feature releases per quarter.
• Manages the event and webinar calendar, including speaker coordination, promotional campaigns, and post-event lead follow-up sequences.
Essential Requirements
• Demonstrated experience leading demand generation or content marketing in a B2B technology or SaaS environment.
• Proficiency in marketing automation platforms (HubSpot, Marketo, or equivalent) and CRM integration.
• Track record of reporting marketing pipeline metrics to senior leadership.
• Experience managing direct reports with accountability for their development and performance.
Preferred Qualifications
• Familiarity with project management or professional services software markets.
• Experience working with external creative or digital agencies.
• Google Analytics 4 certification or equivalent data analytics credential.
Benefits and Working Arrangements
• Hybrid working: three days in office at our Chicago headquarters, two days remote.
• Health, dental, and vision insurance fully funded for the employee, with family coverage available at reduced cost.
• $3,000 annual professional development budget, self-directed.
• Twenty days of paid time off per year, plus 10 company holidays.
• 401(k) with 4% company match, vesting immediately.
Equal Opportunity Statement
[Company Name] is an equal opportunity employer. We welcome applications from all qualified individuals regardless of race, color, religion, gender, gender identity, sexual orientation, national origin, disability, age, or veteran status. Reasonable accommodations are available for individuals with disabilities throughout the application and employment process.
AI and Job Descriptions
Artificial intelligence tools for job description writing are now widely available and genuinely useful for generating first drafts quickly. However, using them without understanding their limitations introduces a specific risk that many HR teams are not accounting for.
AI language models are trained on large datasets of existing text, including existing job descriptions. If the training data contains masculine-coded language, rigid degree requirements, or exclusionary phrasing, the model learns to reproduce those patterns. Language models systematically encode occupational gender stereotypes present in their training data. Feeding an AI tool a job title and asking it to generate a description can produce output that reinforces exactly the biases this article has described, without any signal to the user that this is happening.
The safe approach is to use AI to generate a structural first draft, then apply the inclusive language audit described in Step 10 manually before publishing. AI tools are good at producing grammatically correct, structured output at speed. They are unreliable judges of their own bias.
The Human Capital Hub has developed a free AI Job Description Generator designed specifically to apply the evidence-based principles in this article, including gender-neutral language checks, requirement categorization, and salary range prompts built into the generation workflow. It is available free of charge at thehumancapitalhub.com.
Eight Common Job Description Mistakes and Why They Are Costly
Mistake 1 — Writing the Job Description After the Hire
Under the ADA, a job description written before advertising a vacancy carries evidentiary weight. One written after the fact does not. Beyond legal risk, post-hoc job descriptions are typically reverse-engineered from the hired person's profile rather than the actual job, contaminating every subsequent use of the document from performance management to job evaluation.
Mistake 2 — Using Internal Grade Labels as Job Titles
"Grade 4 Analyst" and "P3 Manager" are internally meaningful and externally invisible. Job board search algorithms index by job title. A title that does not match the language candidates use to search for roles reduces the discoverability of the posting and attracts fewer qualified applicants.
Mistake 3 — Listing Marginal Functions as Essential
This is the most common ADA compliance failure in job descriptions. Every function listed without a qualifier is implicitly treated as essential. An applicant with a disability who is excluded on the basis of a marginal function that was incorrectly labeled as essential has grounds for a discrimination claim. Label every function.
Mistake 4 — Requiring a Degree When Experience Is an Equally Valid Substitute
Mandatory degree requirements that are not genuinely predictive of job performance are being challenged legally and commercially. The Harvard Business School report on degree inflation found that degree requirements in job descriptions had increased significantly for roles where degree holders historically performed no better than non-degree holders. This practice reduces the size of the qualified applicant pool and disproportionately disadvantages candidates from lower-income backgrounds.
Mistake 5 — Omitting the Salary Range
Beyond the growing number of jurisdictions where it is now legally required, omitting salary information wastes the time of candidates who would not accept the role at the budgeted pay level. It produces a larger but lower-quality applicant pool. Time spent interviewing candidates who decline at offer stage because of salary misalignment is a direct, measurable recruiting cost.
Mistake 6 — Writing Responsibilities as Activities Rather Than Outcomes
"Responsible for social media" tells a candidate nothing meaningful about the scope, complexity, or impact of the role. "Manages four social media channels with a combined following of 200,000, producing content that generates an average of 500 qualified website visits per month" tells them what success looks like. Outcome-oriented language attracts candidates who are motivated by results, which is precisely who most organizations want to hire.
Mistake 7 — Never Updating the Job Description
The validity of job analysis information degrades significantly within three to five years as jobs evolve. A job description that was accurate when written in 2019 may not accurately reflect the role today, particularly in technology-intensive or rapidly changing sectors. Organizations should review job descriptions before every recruitment cycle and formally audit the entire library every two to three years.
Mistake 8 — Failing to Run an Inclusive Language Audit
Most hiring managers who write masculine-coded, age-biased, or unnecessarily exclusionary job descriptions do not do so intentionally. The research on implicit bias in language is unambiguous: the effect is real regardless of intent. A structured audit using the word list and criteria in Section 4 takes approximately fifteen minutes and addresses a problem that would otherwise systematically narrow the talent pool.
Frequently Asked Questions
1. How long should a job description be?
Research on candidate behaviour in job applications suggests that descriptions between 300 and 660 words attract the most applicants. Analysis by Textio, a language analytics platform specialising in hiring communications, found that job descriptions outside this range produced smaller applicant pools than mid-length descriptions. The pillar page format of this article is designed for search discoverability rather than direct use as a job posting. The actual job posting derived from this guide should target 400 to 600 words.What is the difference between a job description and a job specification?
A job description is the externally facing hiring document: what the job does, what it requires, and what the organization offers. A job specification is the internal HR document that records in detail the psychometric profile, KSAO inventory, and performance criteria for the role. The specification feeds into test selection, structured interview design, and performance management. The description feeds into job advertising and initial screening. Conflating the two, particularly by including all the technical KSAO detail of a specification in an external job posting, tends to produce an exclusionary document that discourages otherwise qualified candidates.
2. Should I include salary in a job description?
Yes, always both because it is increasingly legally required and produces a better-quality applicant pool. In Colorado, California, New York, Washington, Connecticut, Nevada, Maryland, Rhode Island, Hawaii, and Illinois, salary disclosure is currently legally mandated in job postings. In the European Union, salary disclosure before the first interview is required under Directive 2023/970/EU. Even in jurisdictions without a legal requirement, the research consistently shows that salary-transparent postings attract more qualified applicants and reduce time-to-fill.
3. How often should job descriptions be updated?
Before every recruitment cycle, and formally audited every two to three years at a minimum. In rapidly evolving roles, particularly in technology, data, and AI-adjacent functions, annual reviews are appropriate. The legal and evidence rationale is in Section 10, Mistake 7 above. The practical test is simple: if the hiring manager reads the job description and concludes that it does not accurately describe what the person in that role will actually do, it needs to be updated before it is used.
4. Can a job description be used in a performance review?
Yes, and it should be. The essential responsibilities listed in a well-written job description provide the baseline from which performance standards and objectives are derived. A performance review that is anchored to the job description is less susceptible to recency bias, personality effects, and manager subjectivity because it orients the conversation toward agreed-upon role expectations rather than impressionistic assessments. This connection is only possible if the job description is accurate and current.
5. Who is responsible for writing job descriptions?
Responsibility should be shared between the hiring manager and HR. The hiring manager understands the operational realities of the role and what a successful incumbent looks like. HR brings knowledge of legal requirements, inclusive language standards, job evaluation implications, and market benchmarking for titles and salary ranges. In organizations with a formal job analysis function, an IO psychologist or HR analyst typically facilitates the data collection and drafts the document for manager review. In smaller organizations without this function, the step-by-step guide in Section 5 of this article provides the structure needed to produce a defensible, high-quality document without specialist support.
Key Takeaways
• A poorly written job description is not merely an HR inconvenience. It narrows the talent pool, extends time-to-fill, inflates recruitment costs, and in a growing number of jurisdictions creates legal liability.
• Masculine-coded language in job descriptions demonstrably reduces female application rates, even when women are equally qualified . An inclusive language audit takes 15 minutes and addresses a bias that would otherwise go unnoticed.
• The ADA requires employers to distinguish essential from marginal job functions before advertising a vacancy. This is a legal obligation, not a best practice. Label every responsibility accordingly.
• The EU Pay Transparency Directive 2023 requires salary disclosure before the first interview across EU member states. Ten US states now have pay transparency laws requiring salary ranges in job postings. Include salary ranges as a baseline practice regardless of jurisdiction.
• Separate essential requirements from preferred qualifications in every job description. Long, undifferentiated requirement lists deter qualified candidates, particularly women and candidates from underrepresented backgrounds.
• AI job description tools can generate first drafts efficiently but systematically reproduce the biases present in their training data. Always apply a structured, inclusive language audit before publishing any AI-generated content.
• Job descriptions should be updated before every recruitment cycle and formally audited every two to three years. A job description written in 2019 is not a reliable basis for a 2026 hiring decision.
• The complete job description template in Section 8 of this article can be adapted for any role. Start with the structure, apply the step-by-step guide in Section 5, and run the inclusive language audit in Section 4 before posting.
