Job Description

Strictly, a job description is the internal document that defines a role; the version you see is usually a job posting or ad built from it. People use the terms interchangeably, and in practice the text you read has the same parts:

• Title and summary — what the role is and why it exists.
• Responsibilities — what you'd do day to day.
• Requirements — the must-haves: years of experience, skills, qualifications.
• Preferred or “nice to have” — extras that make a candidate stronger.
• About the company, location, working pattern and sometimes pay.

The job description tells you exactly what the employer will look for — and often the words a recruiter will search for in their ATS. Read it twice: once to decide if the role is right for you, once to mark the skills, tools and outcomes it repeats. Then make sure the ones you genuinely have appear clearly in your CV, using the same terms. That's the core of keyword optimization and tailoring a CV. You don't need to meet every “preferred” line to apply.

Paste the text of a posting into Twin CV's JD matcher and you get a match score out of 100, your strengths and gaps for that role, the keywords your CV is missing and 2–5 suggested rewrites. It never invents experience, and nothing is changed on your CV until you apply a suggestion. The same text feeds a tailored cover letter. Both are part of Premium.