A senior software engineering req now takes 47 days on average to go from opening to an accepted offer, according to placement data from over 300 searches. Add a notice period and onboarding, and 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 47 days actually go
Recruiting from Scratch, a technical search firm, published the stage-by-stage breakdown from its own placement data across 300+ senior searches: 15 to 20 days from opening the req to the first qualified candidate, another 15 to 20 days of interviews, then 7 to 10 days from decision to signed offer. That's the 47-day industry average, and their own specialist pipeline still takes 29.
An accepted offer is not a started engineer, though. Senior people are almost always employed, so add two to four weeks of notice. 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 you're at roughly a quarter. And 47 days is the average across all senior searches. 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
The same placement dataset puts median senior compensation at $192,000, with the 75th percentile at $224,000. Now stack the acquisition costs on top. Agency recruiters charge 15 to 30% of first-year salary, and tech roles cluster at the top of that range, so the invoice alone can run past $50,000. Your own people pay too: a typical loop puts six to eight employees into two to four hours of interviews each, and those hours come from exactly the senior staff who are already covering the vacant seat.
Then there's the number nobody budgets: 20 to 30% of new hires don't survive their first year. Hiring is a probabilistic bet, and when it misses you pay the recruiter, the ramp, and the empty quarter twice. Dover's cost guide estimates an unfilled senior seat at more than $10,000 a month in opportunity cost, which is honestly conservative for a product company, because 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. The 47-versus-29-day gap in the placement data shows what a standing pipeline is worth in hiring; the same logic 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. 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. Panic hires are where the 20 to 30% first-year failure rate comes from, 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 in 2025: complete cost guide