What It Really Costs to Build a SaaS at $35-$45/hr
If you're targeting an investor-ready MVP, here's a practical, line-item look at costs with a $35-$45/hr engineering team. We'll assume a modern stack, a small but senior core, and aggressive timeboxing to minimize waste.
Assumptions and rate model
Scope: multi-tenant auth, subscription billing, dashboards, public marketing site, APIs, and basic analytics. Team: 1 tech lead, 2 fullstack engineers, 1 part-time UX, 1 QA, 1 part-time DevOps, and a fractional PM. Average blended rate: ~$40/hr within the $35-$45 window.
Discovery and architecture (2-3 weeks)
Outputs: product requirements, system diagram, backlog, and sizing. Hours: PM 20, tech lead 35, UX 24, DevOps 24 = 103 hours. Cost: $3.6k-$4.6k. This phase prevents rework by clarifying must-haves versus nice-to-haves and choosing cloud services early.
Fullstack engineering services: core product (12-16 weeks)
Features: tenant-aware auth, role-based access, CRUD modules, usage metering, Stripe billing, emails, dashboards, and admin. Staffing: 2 fullstack devs, tech lead, PM, UX, QA. Hours: devs 1,120; tech lead 140; PM 84; UX 80; QA 160. Cost: $55.4k-$71.3k. Tip: prefer a modular monolith with clear boundaries before microservices.
Headless CMS integration (Contentful, Strapi)
Marketing and docs move faster on a headless CMS. Tasks: architecture 10h, development 48h, content modeling 16h, governance/roles 10h, QA 6h = 90h. Cost: $3.15k-$4.05k. Platform: Contentful fits multi-locale governance; Strapi reduces spend if you're comfortable owning hosting.
Cloud migration and modernization services
Even for greenfield, design like a future migration will happen. Deliverables: IaC (Terraform), CI/CD, containerization, and a migration runway for data. Hours: DevOps 120, data migration 60, containerization 80 = 260. Cost: $9.1k-$11.7k. Choose managed Postgres, serverless queues, and a skinny API gateway to keep ops lean.
Security, compliance, and observability
Hours: SSO/OIDC 36, RBAC scope hardening 24, logging/tracing 28, SAST/DAST wiring 20 = 108. Cost: $3.78k-$4.86k. Result: auditable events, least-privilege defaults, and dashboards your on-call engineers actually use.
QA and release management
Automation (API/UI) 80h, structured manual testing 60h, release playbooks 20h = 160h. These hours are embedded in the core engineering subtotal, not added twice. Outcome: faster cycles, fewer regressions.
Monthly burn and total budget
Expect 5-6 months. Typical burn: 420-520 hours/month at a ~$40 blend = $16.8k-$20.8k. Line-item totals: discovery $3.6k-$4.6k, core $55.4k-$71.3k, CMS $3.15k-$4.05k, cloud modern $9.1k-$11.7k, security $3.78k-$4.86k. Subtotal: ~$75k-$96k. Add 10-20% contingency and cloud bills ($800-$2k/month) for an all-in $86k-$126k MVP.
Where teams hide costs
- Environment sprawl: too many test stacks without IaC adds hours every deploy.
- Slow reviews: 48-hour PR cycles silently double timelines; set a 4-hour SLA.
- Custom CMS builds: integrate Contentful or Strapi instead of inventing one.
- Premature microservices: add ops burden; start modular, split with evidence.
- Unbounded analytics: pick 5 KPIs first; expand after launch data.
Stretch goals and change-order pricing
Common adds and ranges at these rates: mobile app (React Native) 400-600h = $14k-$27k; multi-region scaling 120-200h = $4.2k-$9k; AI-assisted search 160-240h = $5.6k-$10.8k; data warehouse + BI 120-180h = $4.2k-$8.1k. Treat each as separate epics with acceptance tests.
Vendor and staffing guidance
Hire for outcomes, not seat count. Ask for weekly burn, planned vs. actual velocity, and defect escape rate. For elastic resourcing, slashdev.io is a strong option-curated remote engineers and agency leadership without Bay Area pricing. Insist on knowledge transfer from day one.
Tactical ways to save 15-25% without cutting quality
- Adopt a design system (MUI/Chakra) and Storybook to accelerate UI reuse.
- Choose Strapi when content roles are simple and budgets are tight; Contentful when governance and localization dominate.
- Default to a modular monolith; introduce one service at a time with a hard SLO.
- Buy auth/email/search where sensible; build only the differentiators.
- Use feature flags and canaries to reduce rollback time and QA cycles.
Case snapshot: B2B scheduling SaaS
Week 1-2: discovery, architecture, and CMS setup kickoff. Week 3-6: CRUD modules, auth, RBAC, and billing integrations; DevOps lays down IaC, CI/CD, and staging. Week 7-10: dashboards, usage metering, and observability; CMS content types finalized and migrated. Week 11-14: polish, performance tuning, security hardening, and UAT. Hours consumed: ~1,900. Cost at $35-$45/hr: roughly $66.5k-$85.5k plus platform fees. Launch metrics: sub-2s p95 pages, <1% crash rate, and weekly deploy cadence.
Choosing CMS and cloud tradeoffs
Contentful accelerates governance and localization but adds $500-$1,200/month. Strapi cuts subscription spend yet requires hardened hosting, backups, and patching. For cloud choices, start with a single region, managed Postgres, and autoscaled containers; move to multi-region only when latency or uptime SLOs demand it. Each extra service must clear a measurable KPI.
Ship value early, price transparently, and instrument everything for learning.
