You do not always need an employee; sometimes you need the work done
When a .NET team runs short on capacity, the reflex is to open a vacancy. But hiring in-house is not the only, nor always the best, answer. It depends on which problem you are solving.
When in-house makes sense
- The work is permanent, full time and predictable over time.
- You need someone immersed in the team culture for the long term.
- You can afford the hiring time and the fixed cost.
When external support makes sense
- The load is real but does not justify a full-time employee.
- You need specific senior experience with no learning curve.
- You want to sustain a critical application without adding an indefinite fixed cost.
Reserved hours, not body shopping
Here a distinction matters. Classic staff-for-hire sells you an interchangeable profile at the lowest possible price. A reserved senior-hours model is the opposite: a monthly block of dedication from someone who knows your code, with continuity and accountability for the result. You do not buy loose hours; you buy reserved capacity.
The sensible decision
Often it is not one or the other. External support covers the gap now and gives you room to hire well, without rushing, if the volume later justifies a permanent role. What matters is solving the real problem, not filling an org chart.