Job Descriptions


Dear job description enthusiast!

I've been studying job descriptions for 15+ years and below is a summary of the most important things I know. If you'd like to suggest changes to it, please email me and my team at (make sure to include both the information and the source of it).

I will update this page when I learn of anything new.

In the meantime, enjoy!

Rob Kelly, co-founder & Chief Ongiggitizer
Ongig: The Job Description Marketing Platform


Table of Contents


What is a job description (versus job ad, job posting, etc.)?

A job description describes a role in a company. It is used both to advertise a job and for employees once they have the job.

For this report, you'll find the following job description-related terms:


A Brief History of the Job Ad

I believe there have been 3 major eras in job ads and we're just on the cusp of the third!

They are:

  1. Help Wanted & Classified Ads
  2. The Job Boards & Applicant Tracking Systems
  3. Performance-based Interactive Job Ads

Source: Wikipedia

"Help Wanted" Job Ads

The first era of job ads was the "Help Wanted" era and it had 2 chapters:

  1. The Help Wanted Signs
  2. Classified Newspaper Ads

"Help Wanted" signs have been around nearly as long as businesses have.

It was the year 1439 when the first important job ad technology was invented: the mechanical movable type printing press. Johannes Gutenberg's printing press has a multiplier effect on the world because it made:

By the 1600s, retail stores also began adding glass windows (which had just become affordable). Suddenly, Help Wanted signs in store windows became commonplace.

In 1605, the first newspaper (Germany's "The Relation") was published. By the 1800s advertisements began to be "classified" into groups (houses, jobs, etc.).

The classified job ad was born!

Many consider this "Men Wanted" ad below by explorer Ernest Schackleton to be one of the best job ads ever.

Image Source: Shackleton & Endurance 2016

Note: The Shackleton ad is said to have run December 29, 1913 but it's existence has never been proved.

During World War II (1939 to 1945), "help-wanted" advertising increased even more as men left their jobs to join the army.


Job Boards

In August 1992, Bill Warren founded the Online Career Center (OCC), the first employment site on the Internet (source: Wikipedia). It was quickly followed by Monster (which later bought OCC) and NetStart (later renamed CareerBuilder) in 1994.

DICE launched a bulletin board service in San Francisco back in 1990 and then the full-blown web site in 1996 (source: Wikipedia).It was quickly followed by Monster (which later bought OCC) and NetStart (later renamed CareerBuilder) in 1994.

These pioneering sites were soon called "job boards" and the ads on them were called "job ads" or "job postings".

Monster: One of the first job boards  

Applicant Tracking Systems

A key turning point for job descriptions was the arrival of the applicant tracking system in the mid 1990s. The ATS would become the system of record for creating a job requisition ("job req').

A few early and major ATS milestones:

Employers could now use an ATS to create a job description for internal and external hiring. See the Sample Job Description Template section below for differences between internal and external job descriptions.

Taleo: One of the first ATS systems.  

Interactive Job Ads (Performance-based)

In 2004, a new era began for the Web called "Web 2.0" and the "Social Web". While Job boards and ATS's generated mostly static text-based job postings, the new Web 2.0 era ushered in :

Around this time, you began hearing new buzzword terms for the job description such as:

TMP's TalentBrew offered Advanced Job Descriptions (ADJs) that included the employer's logo, color scheme and new things such as maps and links to nearby restaurants.

Source: Photo by Nan Palmero

Job postings got a major facelift when LinkedIn launched its social network (December 2002) which many viewed as a social job board. For instance, a candidate could see a job ad that showed what mutual connections they had with an employer. A candidate could see a picture of the person posting the job along with their social media profile.


Video Job Ads

Video played a key part in this. Video job ads began to appear as early as 2007 (check out ExpertVillage, an instructional Web site, with his video job ad for a news reporter). Here's a Senior Technical Writer video job description "video job post" from Will Staney and the VMware team from Oct. 18, 2010.

Suddenly, these new Web 2.0-type job descriptions could have an impact on employer branding

At first, many of these new dynamic job ads were one-off pages. But soon there were job description platforms.

In 2011, Ongig launched its job description marketing platform that let employers attach video and pictures to the job description text coming out of their ATS. Candidates could see a video or gallery of pictures of the job, view employer ratings and reviews and chat directly with the candidate.


Performance-Based Job Ads

In 2014, job descriptions began to be measured in new important ways.

Textio was founded and used artificial intelligence/machine learning to measure what impact an individual word or phrase has on a job description's apply rate. Ongig could tell you how to boost your apply rate through a change in video or picture or engaging in a chat.

Appcast and other technology companies helped you target candidates with programmatic job advertising.

Google launched Google Cloud Job Discovery (later renamed Cloud Talent Solution) that impacted job descriptions because candidates could now:

The concept of machine learning on job descriptions is that the system gets smarter with every click. This can further increase key metrics like apply rate and quality of candidate.

In short, during this new "interactive, performanced-based" era, job descriptions have become more dynamic and data-driven.


Why are Job Descriptions Important?

Job descriptions are important for 3 main reasons -- they:

  1. Describe the hiring managers' needs for the role
  2. Include the main content advertising the job
  3. Give guidance to the employee hired for the job

Who Typically Writes Job Descriptions

A JD is written by one of 4 people depending on the size of your business:

  1. The Hiring Manager
  2. The Recruiter
  3. Someone else in HR
  4. Marketing or Copywriter

Often it's a combination of 2 or more of the above.

Check out:

The 8 Key Stakeholders in a Job Description Rewriting Project


In a large company, the workflow of job descriptions is usually:

  1. The hiring manager makes a request for a new job (aka "job req') and gives a basic description of the job to HR.
  2. HR approves or rejects the job. If they approve it, they typically recommend a "Grade" of so that they can attach a salary to it.
  3. A recruiter or someone else in HR might brainstorm job descriptions with the hiring manager and even co-write it.
  4. A final JD gets approved by HR.
  5. The job is posted on the employer's applicant tracking system.
  6. The job then often appears publicly because job boards scrape an employer's career site or the employe buys an ad from the job board.

Using Marketing and Copywriters to Write Job Descriptions

Some employers will leverage their Marketing department to write job descriptions. Marketing team members will likely also get involved if you are including the following in your job descriptions:

Another way to write a JD is to hire a copywriter from an outside consultant or recruitment agency.


EEO Statements in Job Descriptions

If your employer works with the government or is publicly-traded then Your Legal department will usually get involved in reviewing JDs. Their main concern will be that your EEO language is in compliance.

Check out:


Diversity in Job Descriptions

Many JDs now include a Diversity Statement. This is sometimes combined with an EEO Statement or might be standalone.

If you have a Diversity team or Head of Diversity, she will likely craft your company's diversity statement

Check out:


Gender-Neutral Job Descriptions

The vast majority of JDs are biased towards men which means that you are likely losing quality female candidates due to your masculine biased job descriptions.

You're also going to want to make sure that your JDs are gender-neutral to attract both men and women. There are now job description text analysis tools such as Ongig, Textio, and Talvista (formerly Talent Sonar and Unitive before that) that will tell you if your JDs appeal more to men or women.

These gender-neutralizing text analysis tools work based on a combination of a database of words proven to attract men and women and artificial intelligence (tracking the clicks on apply of a JD by men and women related to the words used in those JDs).

Some studies show that women are different than men when it comes to the types of job posting they will apply to. For instance, an HP study showed that men apply for a job when they meet only 60% of the qualifications, but women apply only if they meet 100% of them.

So, one tip to attract more women is to:


Readability in Job Descriptions

A good job description needs to be readable...just like a good book or text ad.

Check out Wikpedia’s Readability entry. Readability takes into account length of words and sentences, number of syllables, use of pronouns and much more.

I studied readability in job descriptions for my article on Why I Write My Job Postings at the 8th Grade Reading Level (or Lower!).

For instance, most job descriptions are written at a 11.2 average grade level according to my analysis of 3,500 job descriptions in June of 2018.

Note: The easiest reading level is by grade as in grades of the U.S. school system (where 1st grade is an early year of schooling and 12th grade is senior year of high school).

However, some of the most readable text out there is at 8th grade or lower readability:

It’s now widely accepted that writing at a 7th/8th grade level or below maximizes attention and retention of any text (including job descriptions!).


Positive and Negative Word Use in Job Descriptions

Humans have positive and negative reactions to different words.

Dr. Andrew Newberg, a neuroscientist at Thomas Jefferson University, and Mark Robert Waldman, a communications expert, wrote the book “Words Can Change Your Brain."

In it, they write that “a single word has the power to influence the expression of genes that regulate physical and emotional stress."

And negative words have the power to negatively influence the reader.

Examples of positive words in job descriptions include:

Examples of negative words I've seen in job descriptions include:

Some legal departments might insist you use certain negative words in a disclaimer section of your job description (e.g. work is "hazardous" to your health because it involves heavy lifting of 40+ pounds).

I use Ongig's own Job Description Analyzer to analyze the positive and negative word use in all client job descriptions.

I recommend that at least 95% of the words you use in your job descriptions be positive (the 5% accounts for the words that Legal might mandate you use).


How Long Should Your Job Descriptions Be?

Opinions on the most effective length of job descriptions vary:

I recommend 300 to 750 words per job description with exceptions. For example, an entry level call center job might need to include a description of the training program with the actual schedule (that requires extra text that most job descriptions don't need).


How to Write a Job Description (10 Tips)

To write a good job description, you might keep these 10 tips in mind:

  1. Put first things first -- Well written job descriptions begin with something that captures the attention of the candidate and gets them to keep reading!
  2. Think like Google -- Be specific with your language. The world is vast. If you need a Full-Stack Engineer, use language that appeals to them (not language that appeals to all developers).
  3. Minimize fluff -- The candidate is busy. If it's a sales job and the candidate will use "Salesforce CRM" then say that instead of just "CRM".
  4. Keep sentences short and punchy. I recommend 8 words or less for your job descriptions. Check out these stats from The Public Relations Society of America:
  5. Short paragraphs -- I make limit each paragraph of my job descriptions to 1 to 3 paragraphs.
  6. Active voice instead of passive voice.
  7. First person/second person versus 3rd person -- Writing in f1st person (“We” and “Our)/2nd person (“you” and “your”) has the critical advantage over 3rd person (“It”, “[name of company], “[name of job]”, etc.) because it is more conversational.
  8. Bullets give readers a break -- I have found that that the most readable job descriptions have about 30% of the content bulleted
  9. Don't always spell out numbers -- "We are a top 3 brand in coffee" is preferable over "We are a top three brand in coffee" because it gives the eye a break.
  10. Forget what your English teacher taught you -- There are a bunch of rules you may have learned in English class. Disregard them. You are writing an here not being Shakespeare. E.g. you can begin your sentence with “And” or But” as long as makes your JD more readable.

Check out 10 Tips for Writing Effective Job Descriptions for more details on how to write your own job posting.


How Copywriters Write Job Descriptions

It pays to implement JD writing tips from the experts. A copywriter writes a job posting with the following 4 things in mind:

Check out:


Writing a Title for Your Job Posting

I don't believe that great job descriptions have to have great titles. Sure, if you have a professional ad copywriter (think Don Draper of Mad Men) who could write a different title for each job, go for it. But my advice is to keep it simple.

Titles for job descriptions should be:

Once you've nailed the job title, you need a consistent job description template.

The format for job descriptions are different based on whether it's for internal or external purposes (though some employers use the same JD for both).


Sample Job Description Template (Internal)

Here's a sample of a job description template that might be used internally:

Job Title: e.g. Sales Rep, Developer

Job Type: e.g. Part-time, full time, etc.

Job Location: e.g. 50 Broadway, New York, NY 101583 or New York, NY

Reports to: e.g. Reports to VP of Sales James Murdoch

Job Responsibilities

Job Requirements (or "Skills & Experience")


Performance Goals


Sample Job Description Template (External)

An external job description is often called a job posting or job ad).

It might look the same as the internal JD but exclude the name of the direct report, the actual compensation and the performance goals. It might also add an "About Us" section and EEO/Diversity Statement.

Here's a sample job description template you might use externally:

I wrote job description writing guide in which I included the general job description format used by some top companies including:






You can see that the job description format varies by number of sections. They also vary by the point of view from which they're written. For instance, some are 1st/2nd person ("We" and "You/Your") while others are third-person (About Team, Requirements, etc.).


I enjoyed sharing this summary what I know about job descriptions. I look forward to updating it for you and please write to if you have anything important about job descriptions that you'd like me consider adding.


Rob Kelly, Co-founder & CEO of Ongig


Related Job Description Content:


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