Most people picture a media buyer adjusting bids. Modern platforms removed almost all of that, and the job that remains is less glamorous and considerably more consequential: deciding what to show, to whom, with what money, and knowing when not to intervene.
Here is the actual shape of the week.
What a media buyer does daily, which is little
Twenty minutes, not two hours. The buyer checks for things that are broken rather than things that are suboptimal: a campaign that stopped delivering, a disapproved ad, a landing page returning an error, a billing failure, a conversion event that has gone quiet.
That last one matters most. A tracking break looks exactly like a performance collapse in the dashboard, and the response to each is opposite. Anyone who starts changing budgets before checking whether the event is still firing is about to make things worse.
What a good buyer does not do daily is change budgets and audiences. Delivery needs stable conditions to learn, and an account that is edited every morning never leaves the learning phase — the mechanics are in what learning limited actually means.
The weekly part, which is the job
Reading the numbers that cause decisions. Cost per result against target, frequency against cost, hold rate on video, and the share of spend going to things that are working. Four numbers, read together, over a window long enough to mean something.
Deciding what to kill and what to scale. Underperformers off, winners up in steps small enough not to reset learning. Most of the skill is in the thresholds — how long to let something run before judging it, and how much evidence is enough.
Keeping the creative pipeline full. This is the part that distinguishes a good account from an average one, and it is mostly project management: briefing concepts, chasing assets, cutting variants, getting the next batch live before the current one fatigues. Creative is the main lever left in paid social, so the buyer who runs the best creative process usually wins.
Checking the destination. You already paid for the click. A buyer who never opens the landing page on a phone is optimising half the funnel.
The monthly part
Structure review, audience and exclusion hygiene, a proper look at search terms and placements, and the report — which should be about decisions rather than a dashboard screenshot. Then the planning conversation: what the next month is testing, and what would make the answer clear.
What separates good from average
Diagnosis before action. When cost per lead doubles, the average buyer changes the targeting. A good one establishes first whether leads actually fell, whether tracking changed, whether frequency climbed, whether a competitor entered, or whether the sales team simply stopped answering the phone. Four of those five are not fixed in the ad account.
Patience with learning. Knowing the difference between a campaign that is failing and a campaign that has not finished learning is worth more than any optimisation trick.
Willingness to say stop. The genuinely useful buyer will tell you that the offer is the problem, or the page is, or that the spend should come down this month. That conversation is the one that earns the fee.
What the job is not
It is not hitting a daily dashboard target, it is not an endless A/B test of button colours, and it is not a set of secret settings. Most accounts underperform for unglamorous reasons: weak offer, slow page, broken tracking, not enough new creative, or too much fiddling.
If you are deciding whether to hire one, the job ad sets out what to look for, and when to outsource instead covers the alternative.
Questions people ask before hiring
What does a media buyer do every day?
Less than people assume. A daily check is about twenty minutes looking for things that are broken — stalled delivery, disapproved ads, a dead conversion event, billing failures — rather than tuning budgets, because frequent edits keep an account stuck in the learning phase.
Do media buyers still adjust bids?
Rarely. Automated bidding removed most manual bid work. What remains is deciding the optimisation event, the budget, the audience structure and above all the creative, which is where the remaining leverage sits.
What separates a good media buyer from an average one?
Diagnosis before action. When cost per lead doubles, the average response is to change targeting; the better response is to establish whether leads actually fell, whether tracking broke, whether frequency climbed, or whether sales stopped answering the phone.
How much of the job is creative?
A large share, though mostly as process rather than design — briefing concepts, chasing assets, cutting variants and getting the next batch live before the current one fatigues. Creative supply is the main lever left in paid social.
Related: Hire a media buyer