Two of Us Tech Team
Software Consultancy
Every hiring decision looks simple on a spreadsheet until you account for everything that spreadsheet leaves out. Comparing in-house development to outsourcing fairly means looking past the salary line and the hourly rate to the full cost of getting software built.
The True Cost of a Senior Engineer
When companies calculate the cost of an in-house engineer, they typically start and stop at salary. But the fully-loaded cost includes employer payroll taxes, health insurance, equity compensation, recruiting fees, onboarding time, tools and software licenses, office space, and the management overhead of performance reviews and career development.
In the US, the fully-loaded cost of a senior engineer can run 1.5 to 2 times their base salary — a number that rarely shows up in the initial budget conversation but always shows up in the annual one.
None of that is a criticism of in-house hiring. It is simply the true price of the model, and pretending otherwise is what makes budget comparisons with outsourcing unfair in one direction or the other.
Recruiting Is Expensive and Slow
The average time to hire a senior software engineer in competitive markets is three to four months. During that time, your existing team carries the load, often leading to burnout and slower delivery across the board, not just on the role being backfilled.
Add in recruiter fees of 15 to 25 percent of first-year salary for specialized roles, and a single hire can cost tens of thousands of dollars before the engineer ships a single line of code.
Where the Real Costs Hide
The costs that most budgets miss tend to fall into the same few buckets:
- Ramp-up time before a new hire is net-positive for the team
- Management overhead — 1:1s, reviews, career planning — for every new report
- Backfill risk if the hire does not work out after six months
- Opportunity cost of the roadmap items that waited during the search
The Cost of a Bad Hire, Specifically
A mis-hire is the most expensive version of this problem. By the time a poor fit becomes obvious, six to nine months have usually passed — meaning the company has paid a full salary, absorbed the management time, and still needs to start the search over, this time with a hole in the roadmap where that person's work should have been.
A Simple Cost Comparison Framework
Most companies never actually run the numbers side by side — they compare a headline salary to a headline hourly rate and stop there. A fairer comparison walks through the same categories for both models: base compensation, taxes and benefits, recruiting cost, ramp-up time before the person is net-positive, and the cost of carrying the role unfilled while you search.
Run that comparison for a single role you are currently deciding on, using your own real numbers instead of industry averages, and the right answer for that specific hire usually becomes obvious. The framework matters more than any specific number in it, because the right answer is different for a core product owner than for a six-month capacity surge.
The Outsourcing Equation
Outsourcing or staff augmentation trades some level of control for predictable costs, speed to start, and access to a broader talent pool. A reputable software consultancy pre-vets engineers, handles employment logistics, and can often have someone productive within two to three weeks.
The per-hour or per-month rate may look higher than a salary equivalent at first glance, but when you factor in the hidden costs of full-time employment, the math often favors outsourcing for project-based or capacity-surge work.
The question is rarely "which option is cheaper." It is "which option gets us to a working product fastest, at a cost we can predict."
When In-House Makes Sense
None of this means you should outsource everything. Core product engineers who own your most critical systems, carry institutional knowledge, and drive technical strategy are worth the investment of full-time employment.
The smart approach for most companies is a hybrid: a lean core team of full-time engineers augmented by a trusted consultancy for specialized skills, surge capacity, and exploratory projects that have not earned a permanent headcount slot yet.
A Note on Quality Control
The fear behind every outsourcing conversation is the same one: will cutting the cost also cut the quality? It is a fair concern, and it is exactly why the vetting process matters more than the rate card. A consultancy that pre-screens for the same engineering rigor you would expect from an in-house senior hire — code review discipline, testing habits, ability to communicate tradeoffs — protects the thing that actually matters.
The safest way to validate this before committing is a paid trial period on a real, bounded piece of work. Code quality, communication, and reliability all show up clearly within a few weeks, long before you need to make a longer-term commitment.
The Cost of Attrition
There is one more hidden cost worth naming: what happens when an in-house engineer leaves. Beyond the direct cost of replacing them, every departure takes institutional knowledge with it, disrupts the team's velocity while the workload is redistributed, and often triggers a slower, more cautious hiring process the second time around because nobody wants to repeat a bad fit.
Outsourced or augmented capacity is not immune to turnover either, but a reputable consultancy absorbs that risk differently — they typically have a bench of engineers who already know their processes, which makes a transition measured in days rather than months.
Key Takeaways
- Fully-loaded in-house cost typically runs 1.5-2x base salary once taxes, benefits, and overhead are included
- A senior hire can take three to four months and tens of thousands of dollars before delivering any code
- Outsourcing trades some control for predictable cost and much faster time-to-productivity
- The best long-term model is usually hybrid: a core in-house team plus flexible outside capacity