Prompt Engineering: How to Use AI for an ATS-Optimized Resume & Cover Letter

Prompt Engineering: How to Use AI for an ATS-Optimized Resume & Cover Letter

Written by Gamaliel Baez, MovilDesk



When prompting a LLM like ChatGPT, Gemini, or M365 Copilot for help with completing tasks, I rely on structured, multi-stage prompting rather than a single prompt. This approach improves accuracy and avoids (it doesn’t eliminate) hallucinations. You must review the results of each step before moving on to the next step.

AI Prompting Guidelines:

  1. Define the role or persona
  2. Break the task into clear subtasks
  3. Specify output, format, and constraints. Defining the desired output, the format, and clear constraints helps significantly reduce AI drift.
  4. Build in review checkpoints before moving forward to the next step.

Multi-stage prompting for ATS Optimization of Resume and Cover Letter.

PROMPT 1 — Role Definition + Job Analysis

You are a senior resume strategist and ATS optimization specialist with expertise in [insert your target role] positioning, keyword alignment, and applicant tracking system parsing.

I have uploaded my current resume and the job description for the role I am targeting.

[Upload your resume, the job description, and any other documents you’d like to use as references. You may also paste relevant URLs. Keep in mind that the number of files you can upload at once may vary depending on the AI version or platform you’re using.]

Before rewriting anything, complete the following:

  1. Identify the top 5–8 required competencies
  2. Identify the top 5–8 preferred competencies
  3. Extract the most important hard skills and tools
  4. Extract the most important soft skills
  5. List the primary keywords and repeated phrases

Then, briefly explain how my resume should be aligned to maximize ATS match and recruiter impact.

Do not rewrite the resume yet. Provide analysis only.

[Review results before proceeding.]

PROMPT 2 — ATS-Optimized Resume Rewrite

Now rewrite my resume to align directly with the required competencies and primary keywords identified above.

Requirements:

  1. ATS-safe formatting (no tables, graphics, text boxes, or columns)
  2. Clean chronological structure
  3. Measurable, quantifiable bullet points
  4. Mirror job description language where appropriate
  5. Strong action verbs
  6. Executive-level clarity and impact
  7. Content must remain truthful and aligned with my experience

Provide a fully optimized resume.

[Review results before proceeding.]

PROMPT 3 — Microsoft Word–Ready Resume Version

Provide a Microsoft Word–ready version of the optimized resume.

Requirements:

  1. Single-column layout
  2. Clear section headings
  3. Standard professional formatting
  4. Consistent spacing
  5. ATS-safe structure

Stick to standard formatting that parses cleanly in ATS systems.

[Review results before proceeding.]

PROMPT 4 — Strategic Cover Letter Draft

Draft a concise, executive-level cover letter (3–4 paragraphs).

Requirements:

  1. Open with the most relevant qualification
  2. Clearly articulate value proposition
  3. Highlight 2–3 measurable achievements [specify achievements]
  4. Confident, professional tone
  5. Close with a respectful request for an interview
  6. Do not summarize the resume. Position strategically.

[Review results before proceeding.] 

PROMPT 5 — Word-Ready Cover Letter

Provide a Microsoft Word–ready version of the cover letter using standard business letter formatting.

Stick to standard formatting that parses cleanly in ATS systems.

[Review results]

At this point, you should have two documents:

  1. an ATS‑optimized resume, and
  2. a cover letter aligned with both the job description and your resume.

#ATS #PromptEngineering #AIResumeTips #JobSearch #CareerDevelopment



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