Adobe counted $257.8 billion in US online spending between November 1 and December 31, 2025, up 6.8% from the year before, and Cyber Monday alone hit $14.25 billion (Adobe). If your product sells, ships, books, or pays for anything, a meaningful share of your year runs through an eight-week window. And most engineering teams stop shipping for part of it.
That's the trap with staffing up for a holiday peak. The extra hands have to be useful before the freeze, which means the hiring decision has to happen much earlier than it feels like it should.
Key Takeaways
- Work backwards from your code freeze, not from Black Friday. Thanksgiving 2026 is November 26.
- Engineers start two to three weeks after you pick them. Count that in, and they need several weeks of real work before the freeze.
- Give added engineers the prep work: load tests, performance fixes, alerting, runbooks.
- Plan for January too. Somebody has to pay down what the peak exposed.
The Freeze Sets Your Deadline
When Gergely Orosz surveyed more than 100 engineers, "the majority of companies" had a deployment freeze at the end of the year. Meta, Amazon, and Google run holiday freezes, and at Microsoft some teams, like Bing, do (The Pragmatic Engineer). Your freeze may be formal or just a shared understanding that nobody deploys risky changes the week of Black Friday. Either way, it is the real deadline.
Here is the calendar, worked backwards for 2026:
| Date | Milestone |
|---|---|
| Late September | Decide what the peak needs; request candidates |
| Early October | Pick engineers from a shortlist; sign |
| Late October | Engineers start; pair on real tickets from day one |
| Early to mid November | Load tests, performance fixes, alerting, runbooks |
| Mid to late November | Freeze; added engineers on call rotation as secondaries |
| November 26 to 30 | Thanksgiving, Black Friday, Cyber Monday |
| December | Watch, fix, keep deploys small |
| January | Pay down the shortcuts the peak forced |
If you're reading this in early October, you can still make it, but only if the new engineers work on things that don't need weeks of context.
What Extra Engineers Should Actually Do
Don't give a new engineer your checkout rewrite three weeks before Black Friday. Give them the work that makes a peak survivable and that your team never has time for:
- Load testing. Build realistic scenarios from last year's peak traffic, run them against staging, and find the first thing that breaks.
- Performance fixes. Slow queries, missing indexes, uncached endpoints, oversized images. What to do when your app is too slow covers the usual suspects.
- Alerting and dashboards. If you can't see checkout error rates per minute, you'll find out about an outage from Twitter.
- Runbooks. What to do when the payment provider degrades, when the queue backs up, when a region goes down.
- Feature flags and kill switches. A way to turn off expensive features under load without a deploy. See feature flags decouple deploy from release.
This work is separable, testable, and valuable even if the peak goes smoothly. It is also exactly the kind of work where a senior engineer can contribute in their second week.
A Concrete Version
A direct-to-consumer brand runs its store on a custom stack with six engineers. Last year, checkout slowed to a crawl for 40 minutes on Cyber Monday morning. Nobody knows exactly why.
On September 29, the CTO decides to add two senior engineers for the season. She has a shortlist within 72 hours, picks two by October 6, and both start October 26 after contracts, equipment, and access are set up. The first week, each pairs with an internal engineer on small fixes. By week two, one owns load testing and the other owns observability.
The load tests find it in the first week of November: a product recommendations call that runs synchronously in checkout and times out under load. The fix is a cache and a timeout with a fallback, shipped November 10. The observability engineer adds per-minute checkout dashboards and three alerts. The freeze starts November 16.
Cyber Monday traffic ends up above the prior year. Checkout holds. In December, the two engineers work through the list of shortcuts taken in November, and in January the CTO keeps one of them on to own performance full time.
The Honest Counterpoint
If your peak depends on a big feature that isn't built yet, added engineers in October probably won't save it. Onboarding costs your core team time right when they have the least of it. The better move may be to cut scope, ship the smaller version, and staff up for next year earlier.
It also may not be worth it at all. If your traffic peak is modest, your infrastructure scales on its own, and last year went fine, spend the money elsewhere. Staffing up for a holiday peak pays off when the cost of an hour of downtime during your biggest week is larger than a few months of an engineer's time. For many consumer businesses it is. For a B2B tool whose users are on vacation, it usually isn't.
Engagements through Ruzora start with a 90-day initial commitment, so a late-October start runs to late January. That usually fits, because January is when the cleanup happens, but plan for it.
Frequently Asked Questions
When should I start hiring for the holiday season?
By late September or early October. Engineers typically start two to three weeks after you pick them, and they need a few weeks of real work before your code freeze.
Should holiday engineers be on call?
As secondaries, yes, once they know the system. They shouldn't be the primary on call for a system they learned five weeks ago.
What if I'm already past the freeze date?
Then extra engineers won't help this year's peak much. Use the season to measure what breaks, and start hiring for next year's peak in the summer.
The Bottom Line
The peak is in late November, but your staffing deadline is early October. Put new engineers on load tests, performance, and observability, and keep them through January for cleanup. Ruzora sends a vetted shortlist of senior engineers within 72 hours. Request a shortlist, and read how to onboard a developer fast so week one isn't wasted.
Roberto Espinoza is CEO of Ruzora, which helps US startups hire pre-vetted senior LATAM engineers, with a vetted shortlist in 72 hours. See available engineers.
