A retained search firm for a senior engineering leader can cost you a third of that person's first-year pay before they write a line of code. That is not a guess. Heidrick & Struggles states in its annual report that retained firms are paid "approximately one-third of the estimated first year compensation for the position to be filled" (SEC 10-K).
Most startups hiring engineers use contingency recruiters instead, who only get paid when you hire. Then someone suggests staff augmentation, and the comparison gets confusing, because one model charges a lump sum and the other charges every month. This post puts them on the same page.
Key Takeaways
- A recruiter fee buys you a candidate. You still carry salary, benefits, onboarding, and the risk that the hire does not work out.
- Staff augmentation has no placement fee. Sourcing, vetting, payroll, and replacement are bundled into one monthly rate.
- Compare the two over the time you actually need the engineer. For one to two years of work, the answer often flips from what you expect.
- If you want a permanent, US-based employee for five years, a recruiter is usually the right route, because the fee spreads thin over that tenure.
How Each Model Charges
Contingency recruiter. You pay a one-time fee when you hire their candidate, usually a percentage of first-year salary. Percentages vary by firm, role, and market, so get the number in writing before you share a job description. Many contingency agreements include a guarantee period in which the recruiter will find a replacement or return part of the fee if the hire leaves early. Read that clause closely, because it is often short.
Retained search. You pay part of the fee up front and the rest in stages, whether or not you hire. It is common for executive roles and rare for individual engineers.
Staff augmentation. You pay a monthly rate for an engineer who works on your team. The provider handles sourcing, vetting, payroll, and compliance in the engineer's country. At Ruzora, if an engineer has documented technical performance issues in the first 60 days after their first working day, you pick a replacement from a new shortlist.
And whatever model you pick, recruiting has an internal cost too. SHRM's 2025 benchmarking put the average cost per hire at $5,475 for non-executive roles, with screening and interviewing averaging 8 to 9 days each (SHRM).
| Cost | Recruiter + full-time hire | Staff augmentation |
|---|---|---|
| Up-front fee | Yes, a share of first-year salary | No |
| Salary and benefits | You pay them | Included in the monthly rate |
| Payroll and compliance abroad | You set it up | Provider handles it |
| Bad hire risk | Yours, after the recruiter guarantee ends | Shared, with a replacement guarantee |
| Exit cost | Severance, notice, morale | Notice period |
| Long-term cost | Fee is sunk; salary, raises, and benefits continue | Monthly rate continues; conversion to employee is an option |
The Math Most Teams Skip
The recruiter fee is the visible number. The expensive part is everything that follows. The BLS median for US software developers was $135,980 in May 2025 (BLS). And benefits made up 30% of total compensation for private employers in June 2026 (BLS ECEC). So a median developer on salary costs roughly $194,000 a year before equipment, software, or management time. That is our calculation: salary divided by the 70% wage share.
Then comes the time the seat sits empty while you search, which the true cost of an open engineering role puts in dollars. And then the cost of getting it wrong, covered in the real cost of a bad engineering hire.
A Concrete Version
A Series A startup needs one senior backend engineer for a product line it expects to run for at least 18 months.
Option A: a contingency recruiter. Say the agreed fee is 20% on a $150,000 salary, which is $30,000 at hire. Salary plus benefits at the BLS wage share comes to about $214,000 a year. The search takes two months, and the first month after the start is mostly ramp-up. Measured over the 18 months from the day the search starts, the company pays the $30,000 fee plus about $286,000 for 16 months of compensation, and gets about 15 months of productive work.
Option B: staff augmentation with a senior LATAM engineer. There is no fee. The monthly rate is often 40 to 60% below the fully loaded cost of a comparable US hire, so take the midpoint and call it about half. A shortlist arrives within 72 hours and the engineer starts about three weeks later. Measured over the same 18 months, the company pays about $152,000 for 17 months of work, and gets about 16 productive months after the ramp.
The 20% fee is an assumption for this example, not a market figure, so plug in your recruiter's real terms. But the shape holds. The fee is a small part of the difference. The salary gap and the search time are the big parts.
The Honest Counterpoint
A recruiter is the better choice in a few clear cases. If you want a US-based employee who will grow into a lead over five years, the one-time fee spreads thin over that tenure, and the comparison stops being about cost. You are buying a person on your payroll, in your time zone, with your equity. If the role needs to be on site, or the person needs a US security clearance, augmentation from abroad does not fit.
There is also an ownership question. An employee builds equity in your company and ties their career to it. An augmented engineer can be deeply committed, but the relationship runs through a provider. If the work is the core of your company's long-term advantage, weigh that. You can bridge the two: Ruzora allows conversion to a full-time employee, with a fee that steps down the longer the engineer has worked with you. Contract-to-hire developers explains how that works in general.
Frequently Asked Questions
What does a tech recruiter usually charge?
Contingency recruiters usually charge a percentage of first-year salary on a successful hire. Rates vary a lot by firm and role, so ask for written terms. Retained search firms charge about a third of first-year compensation, according to Heidrick & Struggles' own filing.
Is staff augmentation more expensive than hiring?
Per month, it can look that way if you compare the rate to a salary alone. Against the fully loaded cost of a US hire plus recruiting fees and search time, it is often cheaper. Over many years the fee matters less, and the real question becomes whether you want this person as your own employee.
Can I use both?
Yes. Many teams augment to ship now while a recruiter runs a slower search for a permanent lead. Staff augmentation vs full-time hiring covers how to split the roles.
The Bottom Line
Compare total cost over the months you actually need the engineer, not the fee alone. If you need senior capacity for a year or two, augmentation usually wins. If you want a permanent US employee for the long haul, pay the recruiter. To see what the augmentation side looks like for your stack, request a shortlist or check pricing.
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.
