Recruiting from Scratch, a technical search firm, puts the industry average for a senior software engineering req at roughly seven weeks from opening to an accepted offer (47 to 49 days, depending on which line of its article you read). It does not publish the sample behind that figure. Add a notice period and onboarding, and by our estimate the seat you open in January starts producing in April. For a funded product company, that isn't a recruiting statistic. It's a quarter of roadmap, and the mistake most teams make isn't hiring slowly. It's leaving the work unstaffed while they hire carefully.
Where the seven weeks go
The same firm describes a typical senior search in three stages: 15 to 20 days from opening the req to the first candidate who passes screening, another 15 to 20 days of interviews, then 7 to 10 days from decision to signed offer. It reports that its own placements, more than 300 since 2019, average 29 days. That is a self-reported figure.
An accepted offer is not a started engineer, though. Senior people are almost always employed, so add a notice period; we plan on two to four weeks. Then add ramp: even a strong senior hire needs weeks before their commits carry real architectural weight in your codebase. Measure the distance from "req opened" to "engineer productive" and, by our estimate, you're at roughly a quarter. And seven weeks is an industry average. If the role touches the competitive end of the market right now (inference infrastructure, anyone who has run AI systems at production scale) you should expect to sit on the slow side of it.
A worked example on one empty seat
Senior engineers are among the best-paid hires on a product team, which makes every percentage-based cost larger. Now stack the acquisition costs on top. Agency recruiters typically charge a percentage of first-year salary (Dover's cost guide cites 15 to 30%), which on a senior salary is a five-figure invoice. Your own people pay too: Dover estimates that a hire takes six to eight internal people two to four hours each across interviews, reference checks and decisions, and those hours come from exactly the senior staff who are already covering the vacant seat.
Then there's the risk nobody budgets: some recruiting firms estimate that roughly one in five new hires does not work out in the first year, though the figure is rarely traced to a study. Hiring is a probabilistic bet, and when it misses you pay the recruiter, the ramp, and the empty quarter twice. Dover calls the cost of an unfilled seat the hardest to quantify but potentially the most expensive, and for a product company that is right: the real cost of the empty seat is whatever the delayed feature was worth. We've broken down the fully-loaded salary math before in in-house versus outsourced development cost; this post is about the part that math leaves out, which is time.
What the roadmap loses while you interview
Three months of an unstaffed seat doesn't just delay one feature. The work lands somewhere, and where it lands is on the engineers you already have. So the people you most need to keep get the extra load, plus the interview hours, at exactly the moment a competitor's recruiter is calling them. Meanwhile the ground shifts under the roadmap itself: in AI product work, a quarter is enough time for the model landscape your product sits on to move at least once.
There's a cruel loop in here. The teams that most need the hire are the least able to run a fast, high-quality interview process, because the interviewing time comes out of the same overloaded people. Slow loops lose good candidates, which extends the vacancy, which increases the load. Teams don't break this loop by interviewing harder. They break it by taking the time pressure off the calendar.
Four ways teams cover the gap
| Option | Time to a productive engineer | Commitment | Where it breaks |
|---|---|---|---|
| Keep interviewing while the team absorbs the work | Never (the gap just moves) | None | Senior burnout, slipped dates, attrition |
| Contract-to-hire | 2 to 4 weeks | Convertible | Genuinely senior people rarely audition |
| Staff augmentation | Days to 2 weeks | Month to month | Wrong for work you must own forever |
| Cut the roadmap item | Immediate | None | The item was funded for a reason |
The point of augmentation done well isn't to replace the hire. It's to take the deadline off the req so you can keep the bar high. In our view, the logic that makes a standing recruiting pipeline faster also applies to delivery, which is why a partner with a vetted bench that can shortlist in 72 hours changes the math. Bridge the seat, keep interviewing, and stop the loop where a rushed process produces the bad hire that restarts the whole clock. If you're weighing that against a longer-term model, the trade-offs are laid out in fixed-scope versus dedicated teams.
When augmentation is the wrong answer
An honest list, because a partner who claims it always fits is selling:
- Your first engineering hires. The people who set culture and own the foundational architecture should be yours, full stop.
- Work with nobody to hand back to. Augmentation adds capacity to a directed team; it doesn't supply the direction. If no one inside can specify and review the work, fix that first.
- Permanent core systems. If the work is your company's crown jewels and runs for years, the in-house economics win, and we've said so in print.
What this means for your team
- Track time-to-productive, not time-to-offer. Our estimate of the honest number is about 90 days, and your roadmap should assume it.
- Price the vacancy before you open the req. A seat's monthly cost, in delayed work, is the budget line that justifies (or kills) a bridge.
- Never lower the bar to close faster. In our view panic hires are the ones most likely to miss, and a bridged seat removes the panic.
- Protect the people covering the gap. If the same three seniors absorb the work and run the interviews, you're risking the engineers you already have to chase one you don't.
If you're running this math on a Bay Area roadmap right now, with a req that's been open six weeks and a milestone that hasn't moved, that's exactly the situation our Silicon Valley team exists for. Tell us what the seat was supposed to ship and we'll tell you, concretely, what bridging it would look like.
Sources
- Recruiting from Scratch: How long does it take to hire a senior software engineer in 2026
- Dover: Tech recruiter fees: complete cost guide
