Should I build software in-house or hire an agency?
Building software in-house costs $150,000-$350,000 per year per senior engineer when you include salary, benefits, recruiting costs, and management overhead -- versus $100,000-$200,000 for an equivalent scope delivered by a US agency in 4-6 months. In-house teams are better for products requiring continuous iteration; agencies are better for defined scopes, speed to launch, and situations where you lack the internal technical leadership to manage and grow an engineering team.
The in-house vs. agency decision is fundamentally a question of timeline, scope stability, and internal management capacity.
Full Cost of In-House Development
- Salary -- $130,000-$200,000 base for a senior engineer in most US markets
- Benefits and payroll taxes -- add 25-35% to base salary ($33,000-$70,000)
- Recruiting cost -- $20,000-$40,000 per hire (recruiter fees, time-to-fill, interview overhead)
- Ramp time -- a new engineer is at 50-70% productivity for the first 3-4 months
- Management overhead -- someone must manage, review code, and grow the engineer -- typically an existing senior engineer or engineering manager
- Total first-year cost per engineer -- $200,000-$350,000 before they ship their first production feature at full productivity
When In-House Wins
- The product is your core competitive differentiator and requires daily iteration
- You have post-Series A funding and 4-6 months to recruit and ramp
- You have an internal engineering manager who can absorb the team
- The scope is open-ended -- you do not know what you will need in 6 months
When an Agency Wins
- You need to launch in under 12 weeks
- The scope is defined and bounded
- You lack internal technical leadership to manage an engineering team
- You want to validate before committing to permanent headcount
Code and Trust offers both project-based development and staff augmentation for teams that need engineering capacity without full-time hiring overhead. Contact us to discuss the right model for your situation.
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