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Stacklane
ROI calculator

Compare Stacklane vs hiring in-house on your real numbers.

Most cost comparisons skip the math that matters in the AI era: hiring an engineer takes four months you spend shipping nothing, the loaded cost of a hire is double the salary, and an AI-native subscription compresses the work the way the AI tooling actually allows. Tune the inputs to your shape and see the 12-month difference.

Inputs

Tune the assumptions to your shape.

Senior engineers needed
Time horizon
Fully-loaded salary per engineer€ 120.000 / year

Base salary plus 30 to 40% for employer tax, benefits, tools, office. Dutch market average.

Recruiter fee per hire€ 20.000

Typical NL senior-eng recruiter fee: 20 to 25% of first-year salary.

Months to fill each role4 months

From job posting to first commit, on average.

Results

12-month total cost of delivery

Net savings vs in-house

€ 0

28% less spend, with 4 extra months of shipping while the in-house alternative is still hiring.

In-house team

€ 0

Stacklane subscription

€ 0

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Methodology

How the math works.

Defaults set to NL senior-market averages. Every input adjustable, every number exposed. No hidden multipliers.

Fully-loaded salary
Default €120,000 per year. Base salary in NL is roughly €90,000 to €110,000 for a senior engineer; 30 to 40% loading covers employer tax (~24%), pension, benefits, tools, and office allocation.
Recruiter fee
Default €20,000 per hire. NL senior-engineering recruiter fees run 20 to 25% of first-year salary, typically €15,000 to €30,000.
Hiring timeline
Default 4 months. End-to-end: posting, screening, interviews, offer negotiation, statutory notice from current employer, onboarding to first useful commit.
Stacklane subscription
€6,000 per month flat per team. Scaling to 2 or 3 engineers means stacking subscriptions; the calculator multiplies accordingly to keep the comparison capacity-to-capacity.
No-delivery gap is real
The in-house calculation only charges salary from the month the engineer starts shipping. The visitor still pays opportunity cost during the hiring window; the time-advantage readout makes that visible.
Numbers are rough
Senior salaries vary by region, equity package, company size, market timing. Sliders are there to tune to your reality. If you want a precise model for your specific situation, book a call and we run it together.
Discovery Call

Want the analysis tailored to your situation?

30 minutes with the founder. We run your real numbers, talk through the assumptions, and tell you straight whether subscription beats hiring for your shape.