After working with 50+ funded startups — from pre-seed to Series B — we've seen engineering budgets range from $180K to $650K in year one. The startups that burned through their budget in 8 months made the same 3 mistakes. The ones that stretched it to 18 months followed the same 3 patterns.
What the Average Funded Startup Spends
| Funding Stage | Annual Engineering Spend | Team Size | Typical Hire |
|---|---|---|---|
| Pre-seed ($500K-$2M) | $120K-$250K | 1-2 devs + founder coding | First technical hire |
| Seed ($2M-$5M) | $200K-$400K | 2-4 developers | First dedicated team |
| Series A ($5M-$15M) | $350K-$650K | 4-8 developers | Engineering manager |
| Series B ($15M+) | $650K-$1.5M | 8-15 developers | Multiple squads |
Engineering typically eats 40-60% of a funded startup's total spend. If you raised $5M and your engineering burn exceeds $50K/month, you've got 8 months before you need to either hit revenue targets or raise again.
Where the Money Actually Goes (Series A Breakdown)
Most founders budget for salaries and forget everything else. Here's a realistic split:
Developer salaries/contracts: 65-75% ($230K-$490K)
This is where the model matters. Two paths, same talent quality:
- All US in-house: 2 seniors ($180K each) + 2 mids ($140K each) = $640K. That blows your entire engineering budget on salaries alone.
- Hybrid model: 1 in-house CTO ($180K) + 3 augmented developers ($5K/month each × 12 = $180K) = $360K. Same output. 44% less spend. Budget left for everything else.
Infrastructure: 8-12% ($30K-$60K)
AWS, Vercel, Supabase, monitoring. Starts at $200/month for MVP, scales to $2-3K at 50K users.
Tools & SaaS: 3-5% ($10K-$25K)
GitHub ($44/user/month), Linear ($8/user), Figma ($15/seat), Sentry, Datadog, Mixpanel. It adds up fast with a team of 6.
Design: 5-10% ($20K-$50K)
UI/UX freelancer or agency for the first 3-4 months. After that, a part-time designer or design system.
QA & Testing: 3-5% ($10K-$25K)
Automated testing setup + occasional manual QA sprints.
Contingency: 10% — Always. 67% of startups pivot at least once (Startup Genome). If your budget is 100% allocated to Plan A, there's nothing left for Plan B.
How Many Developers Do You Actually Need?
Less than you think. The fatal mistake: hiring too many too fast.
4 productive developers > 8 developers still onboarding.
By product type:
- B2B SaaS: 2-3 for MVP, 4-6 for growth
- Mobile app (consumer): 2-4 developers (Flutter = fewer needed vs native)
- Marketplace: 3-5 minimum (frontend + backend + admin)
- AI product: 2-3 core devs + 1 ML engineer
Start with 2-3. Prove velocity. Scale to 5-6 by month 6. Never hire all at once.
The 3 Mistakes That Burn Through Budget in 8 Months
Mistake 1: Hiring a 6-person team before product-market fit. You don't need 6 developers to validate an idea. You need 2-3 to build an MVP that real users can test. Hire the rest after you have paying customers.
Mistake 2: Building everything custom. Use Supabase instead of a custom backend. Vercel instead of custom deployment. Stripe instead of custom payments. These decisions save $50-100K in year 1 and give you better uptime than anything you'd build yourself.
Mistake 3: Zero budget for pivots. Your first product idea probably isn't your final one. If every dollar is committed to Plan A, a pivot means either running out of money or raising a bridge round at terrible terms.
The 3 Patterns That Stretch Budget to 18 Months
Pattern 1: Start augmented, then hire. Ship MVP in 12 weeks with an augmented team ($30-50K). Validate with users for 3 months. THEN hire full-time for Phase 2. You get 6 months of real data before making expensive, permanent commitments.
Pattern 2: Use the modern BaaS stack. Supabase + Vercel + Stripe cuts infrastructure cost by 60-70% compared to custom AWS setups. A startup we worked with ran their entire product on $200/month in infrastructure until 15K users.
Pattern 3: Invest in CI/CD early. Costs $10-15K to set up properly. Saves $50K+ in manual QA, deployment debugging, and "it works on my machine" issues over 12 months.
Read the complete guide with detailed budget templates, team structure frameworks, and the hiring vs augmentation cost calculator at geminatesolutions.com/blog/startup-engineering-budget-year-one.
Geminate Solutions builds web, mobile, and AI-powered products for startups and growing businesses worldwide. 50+ products shipped globally.
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