Selin Yildirim Chief of Staff to the Chief Executive Portland, 97209, United States [email protected] · (503) 555-0263
11 September 2026
Mr. Aurelio Bakhtiari Chief Executive Lindenmoor Diagnostics Seattle, United States
Application for Chief of Staff, Lindenmoor Diagnostics
Dear Mr. Bakhtiari,
I am applying for the Chief of Staff post at Lindenmoor Diagnostics. I am currently chief of staff to the chief executive of Quarrymill Group, a 1,900-person business with three units, where I own the operating calendar, the board and committee timetable and the executive decision log, and where I decide the agenda, the pre-read standard and which escalations stop with me rather than reaching the chief executive.
The work I would most want to bring is the integration of a 240-person acquisition last year, which I ran across people, technology, finance and commercial without a reporting line into any of them. What made it move was not authority but structure: a weekly forum with a named owner per workstream, a dependency list published every Friday, and an escalation path agreed with each function head before the program started, so that a blockage had an agreed route rather than a conversation. Systems cutover finished in seven months against a nine-month plan, and 91% of the acquired leadership were still in place at twelve months.
From your posting and your last two announcements, the version of this role you are describing looks operations-weighted rather than strategy-weighted, at least for the first year: a cadence that needs building, a leadership team that has grown quickly, and an integration ahead of you. That is the version I am strongest at. I would spend the first sixty days on the cadence and the decision log rather than on anything more visible, because everything else in the job depends on those two working.
I should be clear about the boundary. I have not held a line profit and loss or functional headcount, and hiring authority outside the office of the chief executive has never been mine. I could start with two months' notice, and I would welcome the chance to talk about which version of this role you want. Thank you for your time.
Sincerely, Selin Yildirim
Summary
A chief of staff cover letter says whose office you ran, what you could decide in their name, and one cross-functional program you moved without owning the teams. This guide gives you a full adaptable letter, the openings that work when the role means six different jobs, and how to write to a principal you would be serving directly.
Chief of Staff cover letter examples by experience level
A chief of staff cover letter is a one-page letter that says whose office you ran, what you were allowed to decide in their name, and one thing you moved across functions you did not manage.
More often than not the reader is the principal themselves, hiring someone they will speak to several times a day. They are reading for judgment and for whether you can write, because writing on their behalf is a large part of the job.
Guide to a chief of staff cover letter
This guide and the corresponding chief of staff cover letter example will cover:
- How to structure the letter when the principal is the reader
- Why decision rights belong in the first paragraph
- Writing about a program you drove without owning the teams
- The closings that work when the role is being defined as it is filled
How to write a chief of staff cover letter
| Paragraph | Its job | Length |
|---|---|---|
| Opening | The post, whose chief of staff you are now, and what you decide in their name | 2 to 3 sentences |
| Evidence | One cross-functional program: the mechanism, the result, the period | 4 to 5 sentences |
| Fit | Which version of the role you think theirs is, and what you would do first | 3 to 4 sentences |
| Close | What you have not held, availability, thank you | 2 sentences |
Lead with decision rights, not with the relationship
Almost every chief of staff letter opens with a version of "trusted partner to senior leadership". The principal reading it has seen that sentence forty times.
Open with what you could settle without going back to them: the agenda, what reaches the executive team, the pre-read standard, the decision log, which escalations stop at your desk. Those sound administrative and they are the only authority the role has.
A chief of staff cover letter example you can adapt
Dear Mr. Bakhtiari,
I am applying for the Chief of Staff post at Lindenmoor Diagnostics. I am currently chief of staff to the chief executive of Quarrymill Group, a 1,900-person business with three units, where I own the operating calendar, the board and committee timetable and the executive decision log, and where I decide the agenda, the pre-read standard and which escalations stop with me rather than reaching the chief executive.
The work I would most want to bring is the integration of a 240-person acquisition last year, which I ran across people, technology, finance and commercial without a reporting line into any of them. What made it move was not authority but structure: a weekly forum with a named owner per workstream, a dependency list published every Friday, and an escalation path agreed with each function head before the program started, so that a blockage had an agreed route rather than a conversation. Systems cutover finished in seven months against a nine-month plan, and 91% of the acquired leadership were still in place at twelve months.
From your posting and your last two announcements, the version of this role you are describing looks operations-weighted rather than strategy-weighted, at least for the first year: a cadence that needs building, a leadership team that has grown quickly, and an integration ahead of you. That is the version I am strongest at. I would spend the first sixty days on the cadence and the decision log rather than on anything more visible, because everything else in the job depends on those two working.
I should be clear about the boundary. I have not held a line profit and loss or functional headcount, and hiring authority outside the office of the chief executive has never been mine. I could start with two months' notice, and I would welcome the chance to talk about which version of this role you want. Thank you for your time.
Sincerely, Selin Yildirim
Openings that work
| Instead of | Use |
|---|---|
| I am writing to express my interest in the chief of staff position | I am chief of staff to the chief executive of a 1,900-person group with three business units |
| I am a trusted partner and right hand to senior leaders | I decide the agenda, the pre-read standard and which escalations stop with me rather than reaching the chief executive |
| I have led numerous strategic initiatives across the business | I ran a 240-person integration across four functions with no reporting line into any of them |
| I thrive in fast-paced, ambiguous environments | From your posting, this role looks operations-weighted for the first year, which is the version I am strongest at |
What counts as evidence for a chief of staff
Your evidence is either something you owned outright or something you moved without authority, and both need a mechanism as well as a result.
| Kind of evidence | What it looks like in a sentence |
|---|---|
| Cadence owned | Weekly executive meeting, monthly business review, quarterly unit review, board timetable |
| A program run without authority | 240-person integration across four functions: cutover in seven months, 91% leadership retention at twelve |
| A recommendation, including a rejected one | Four business units to three, adopted; stopping a second-brand initiative, not adopted |
| Triage | About 40% of inbound executive escalations closed at my level, with a weekly written summary of what was absorbed |
Absorbing escalations without a written record is not triage, so give the figure and the record together.
Writing to the principal you would serve
Write as though the principal is reading it, because they usually are. Say which version of the role you think theirs is, from their own postings and announcements. Give one program with its mechanism. Name what you would do in the first sixty days, and make it unglamorous if that is the truth. State what you have not held.
Do not use "right hand", "force multiplier", "trusted adviser" or "the glue that holds it together". Do not name the executive you currently serve. Do not claim their organization as something you led. Do not quote anything from a board pack or describe an unannounced transaction. Do not promise strategic impact in a role that is visibly about cadence for the first year.
Why the title is banded so unevenly
There is no Occupational Outlook Handbook profile for chief of staff, so the published brackets are the occupations around it. Management analysts had a median annual wage of $101,860 in May 2025 and are projected to grow 10 percent between 2025 and 2035, adding 109,200 jobs with about 94,100 openings a year. General and operations managers had a median of $105,770, and managers, all other, the catch-all for unnamed management titles, had a median of $141,900. Executive secretaries and executive administrative assistants, a different occupation that postings sometimes blur into this one, had a median of $76,590 (BLS Occupational Outlook Handbook, May 2025 wage data and 2025 to 2035 projections).
The spread is not noise. The Chief of Staff Association describes six modalities of the contemporary role, from strategy architect through to operations focused and communication centric (The Chief of Staff Association, Six Modalities of a Contemporary Chief of Staff, accessed 13 September 2026). Six jobs under one title is why the band is so wide.
Say which of those jobs you have done and which you think theirs is, in plain words.
Length, format and sending it
One page, four paragraphs, 300 to 450 words. PDF unless the portal says otherwise: selin-yildirim-chief-of-staff-cover-letter.pdf.
Address the principal by name if the posting names them, and the recruiter by name if it does not. The Chief of Staff Association reports 59 percent internal promotions against 41 percent external hires (The Chief of Staff Association, Pathways into the Chief of Staff Role, accessed 13 September 2026), so an external application is already the harder route and a generic salutation makes it harder still.
Keep the numbers identical to your resume. Our chief of staff resume example uses the figures in this letter.
Key takeaways
- Open with whose chief of staff you are, how large their organization is, and what you decide in their name.
- Build the middle of the letter on one cross-functional program, with its mechanism.
- Say which of the six versions of the role you think theirs is.
- Name what you would do in the first sixty days, even if it is unglamorous.
- State what you have not held, such as line profit and loss or functional headcount.
- Write it well; writing on the principal's behalf is part of the job being advertised.
Write your chief of staff cover letter in 10 minutes with our AI cover letter builder.
Chief of staff cover letter questions, answered
How long should a chief of staff cover letter be?
One page, four paragraphs, 300 to 450 words. It is often read by the principal rather than a recruiter and doubles as a writing sample.
Should I name the executive I currently work for?
No. Give their role and the size of their organization: "chief of staff to the chief executive of a 1,900-person group". Naming the individual attaches your application to a specific person's public record and reads as borrowed status.
How do I write about a program I drove without any authority?
Give the mechanism as well as the result. A weekly forum with named owners, a published dependency list, an escalation path agreed with each function head before the work started: those are the things that made it move, and describing them is what separates a credible claim from a claim on other people's work.
What do I write if the role has not really been defined yet?
Say so, and pick the version you think it is. These postings are often written before the principal has decided what they want, and a candidate who names the version and says it is the one they are strongest at is doing them a favor. Promising to be all six versions at once is the most common reason these letters are discarded.
Should I mention what I have not done?
Yes, in one line at the end. Line profit and loss, functional headcount and hiring authority are the three most chiefs of staff do not hold, and naming them makes everything you did claim more believable.