ATS-Friendly Resume Guide: How to Format, Optimize, and Check Your CV

Overview

Applicant tracking systems (ATS) are software tools that may help employers organise applications, search resumes, and route documents for review. They do not all work in the same way, and passing an automated check does not guarantee an interview. The useful goal is simpler: create application documents that are easy for software to parse and easy for a person to understand.

This matters across resumes, CVs, cover letters, and application forms. Your resume should present relevant evidence of your skills and experience. Your cover letter should explain why that evidence fits the role and employer. Both documents should use consistent details, accurate keywords, and clear formatting.

For a broader explanation of layouts, headings, and file choices, see this guide to an ATS-friendly resume format. Use the checklist below whenever you prepare an application, especially when the role description, your target industry, or your preferred tools have changed.

What an ATS-friendly application should do

• Use familiar section headings such as Summary, Experience, Education, Skills, and Certifications.
• Make your job titles, employers, dates, and achievements easy to identify.
• Include relevant language from the vacancy without copying the description mechanically.
• Keep the resume and cover letter readable on a screen and when printed.
• Give a recruiter enough context to understand your contribution, not just a list of duties.

Checklist by scenario

Before creating a new application

1. Read the vacancy twice. On the first pass, identify the role's main purpose. On the second, highlight required skills, preferred skills, tools, qualifications, industry terms, and evidence the employer appears to value.
2. Separate requirements from responsibilities. A requirement may need to appear clearly in your Skills or Qualifications section. A responsibility is often better addressed through an achievement in your Experience section or a short example in your cover letter.
3. Choose evidence before writing. Select two to four examples that show relevant results, decisions, improvements, or problems solved. For a student or career changer, coursework, projects, volunteering, placements, and part-time work can provide useful evidence when described accurately.
4. Check your source documents. Confirm dates, job titles, qualifications, contact details, and links. If you need help calculating employment history, use the guidance in the work experience calculator guide.

When tailoring the resume or CV

1. Use a simple structure. A typical order is contact details, professional summary, skills, experience, education, and relevant additional sections. Change the order when your strongest evidence requires it, but avoid decorative layouts that make the reading path unclear.
2. Use standard fonts and headings. Keep text styling consistent. Tables, text boxes, floating graphics, icons, and information placed in headers or footers can be difficult for some systems to interpret.
3. Write the full term before an abbreviation where useful. For example, you might write “Search engine optimisation (SEO)” once, then use the shorter form. This supports both human readers and systems that look for either version.
4. Mirror the vacancy's language honestly. If the description says “customer relationship management,” do not rely only on “client support” if you have genuinely used CRM tools. Do not add a keyword for a skill you cannot discuss.
5. Turn duties into evidence. “Managed social media” is less informative than “Planned and scheduled weekly social content for a student society, tracking engagement and adjusting topics.” Add scale or outcome when you can verify it.
6. Keep dates unambiguous. Use a consistent month-and-year format, such as “May 2023 – August 2024,” and explain overlapping roles or career breaks briefly when clarification would help.

When writing the cover letter

1. Address the actual role. Name the position and, where appropriate, the organisation. Avoid leaving another employer's name in the document.
2. Open with a clear reason for applying. Connect the role to your background, interest, or next career step without using a generic claim such as “I am the perfect candidate.”
3. Use two or three relevant examples. The cover letter should add context rather than repeat every bullet from the resume. Explain the situation, your action, and the result or lesson.
4. Show the connection. If the vacancy requests stakeholder communication, explain where you used that ability and why it is relevant to this position.
5. End with a professional next step. Reconfirm your interest, mention your availability if relevant, and close confidently without making guarantees about the outcome.

When using an ATS resume checker or CV optimizer

1. Use the checker as a review aid, not as an authority.
2. Investigate every suggested keyword. Keep only terms supported by your experience.
3. Review warnings about headings, dates, contact details, file type, and formatting.
4. Read the edited document from a recruiter's perspective after making changes. A higher match score is not useful if the writing becomes repetitive or unnatural.

What to double-check

Before submitting, complete a document-by-document and application-level review.

• Contact details: Check your email address, phone number, location, portfolio, and LinkedIn URL. Make sure links work and display professionally. Your profile and resume should agree on core facts; the LinkedIn versus resume guide explains what should match and what may differ.
• Keywords: Confirm that the most important, truthful terms appear in a relevant context. Avoid a keyword block that simply repeats the vacancy.
• Consistency: Compare employer names, dates, titles, qualifications, and spelling across the resume, cover letter, application form, and online profiles.
• File integrity: Open the submitted file on another device. Check page breaks, spacing, bullet points, hyperlinks, and whether the text can be selected and copied.
• Length and relevance: Remove older or unrelated details when they do not support this application. The best format is the one that makes your strongest evidence easy to find, not necessarily the one with the most content.
• Final reading: Read aloud or use a text-to-speech tool. Awkward phrases, repeated words, missing articles, and incorrect names are easier to catch this way.

For the final practical test, copy the text from the saved file into a plain-text document. If headings, dates, or important details appear in the wrong order, simplify the formatting before submitting.

Common mistakes

• Designing for appearance alone: Columns, graphics, logos, and progress bars may look attractive but can obscure important information or distract from evidence.
• Stuffing in keywords: Repeating a phrase in every section can make the application sound forced. Use the employer's terminology where it accurately describes your experience.
• Submitting one generic document: A general resume can be a useful base, but each application should reflect the role's priorities. Tailoring does not require rewriting everything; it may involve changing the summary, skills order, and most relevant bullets.
• Writing a cover letter that duplicates the resume: Use the letter to explain motivation, context, and fit. Do not turn it into a second list of duties.
• Trusting a checker completely: Automated tools may flag formatting or keyword gaps, but they cannot reliably judge every career transition, transferable skill, or achievement. Apply human judgement.
• Using vague achievement language: “Responsible for” and “helped with” often hide your contribution. State what you did, how you did it, and what changed when you can support the claim.
• Forgetting the application record: Save the submitted version and note the vacancy, date, keywords used, and document name. A job application tracker can make later follow-up and revision easier.

When to revisit

Review your master resume and cover letter materials at least whenever one of the underlying inputs changes. Revisit them when you gain a qualification, complete a substantial project, change roles, receive measurable results, or decide to target a new industry. A career change may require a different summary and evidence order; see the wider guidance on building a career history and work experience record before rewriting.

Run the checklist again before seasonal hiring periods, graduate application cycles, teaching or academic recruitment windows, and any concentrated job-search week. Also review documents when an employer changes its application portal or asks for a different file type. Tools and parsing behaviour can change, so do not assume that an old file will remain ideal for every new workflow.

Your next action is straightforward: choose one target vacancy, highlight its five most important requirements, tailor the resume summary and skills section, write a focused cover letter, test the saved file as plain text, and record the final version. After applying, note which evidence you used and update the document only when you have a specific improvement to make.