Chief Financial Officer: the real job behind the title

A controller makes sure the books are right. A VP of Finance usually makes sure the plan is right. The CFO is accountable for both, plus the outside world: the board, investors, lenders, auditors and sometimes regulators. You own capital strategy, which means deciding how the company pays for its growth, and you're often the CEO's closest partner on hard calls like layoffs, pricing and whether to sell. If the numbers are wrong in a board meeting, it's your name on it.

There are three common roads. Some come up through public accounting, spend years at an audit firm, move into a controller role and then take on planning. Some come from FP&A, building models and budgets until they're running the whole finance function. Others come from investment banking or private equity, where they learned deal work and capital raising, and then learn operations on the job. Each road leaves a gap. Accountants often need to get sharper at strategy, and bankers often need a strong controller because the close is new to them. Knowing your gap, and saying so in the interview, lands better than pretending you don't have one.

Neither is legally required for the title, but a lot of boards want one or the other. A CPA license matters most at companies where technical accounting is heavy, like public companies, banks and anything with complex revenue recognition. An MBA shows up more in operating and strategy roles. If you hold a CPA, keep it active, because an expired license reads oddly on a senior resume. If you don't have either, your track record has to do the work: audits you've passed cleanly, a raise you ran, a system migration you finished.

They test judgment far more than technical knowledge. Expect a case built around a real situation: cash is running short, which three things do you do first? Expect a walk through a past board deck where they'll push on how you explained a miss. The audit committee chair will ask about your worst audit finding and what you changed afterward. The CEO wants to know if you'll tell them no in private and back them in public. Bring specific stories, and be ready to say what you'd do differently. Candidates who have only ever succeeded sound untested.

You won't be building pivot tables every day, but you should be fluent enough to spot a broken model. Expect an ERP like NetSuite, SAP or Oracle, a planning tool like Adaptive, Anaplan or Pigment, and a BI layer like Tableau or Power BI. For SaaS companies, know how billing systems such as Stripe or Chargebee feed revenue. Hiring managers care less about which logos are on your resume and more about whether you've picked a system, implemented it and lived with the result.

A big one. At a startup you're often the first real finance hire, so you'll clean up the books, set up payroll and sales tax, build the first budget and run the fundraise, sometimes all in the same month. At a public company the work shifts to disclosure, controls, earnings calls and investor relations, and you'll lean on a much larger team and outside counsel. Plenty of people are great at one and unhappy in the other. Be honest with yourself about which kind of chaos you enjoy.

Ask to see the last few board decks and the most recent audit letter. Ask how much runway the company has and when the CEO thinks the next raise happens. Ask who the last CFO was and why they left, and then talk to them if you can. Find out if you'll report to the CEO directly and whether you'll attend every board meeting, not just the finance portion. Ask about the controller and the FP&A lead by name. If either seat is empty or weak, your first six months will be spent filling it.

Usually it's not bad math. It's surprising people. A CFO who delivers bad news late, in a board meeting, loses trust fast and rarely gets it back. The other common failure is staying in the weeds: redoing the controller's work, rebuilding every model, and never getting to the strategic questions the CEO hired you for. The best CFOs I've worked with share problems early, keep a short list of the numbers that really matter, and make the finance team feel like a partner to the rest of the company instead of a gate.