2025. Contract.
BusinessPlan.ai
Sole Developer
AI-powered business planning platform
Built an AI business-planning product as the sole engineer, from generation and financial modelling to payments and exports. Designed long-running workflows to recover from partial failures.
What shipped.
The work that reached production.
- Delivered the full product as the sole engineer, including generation, financial projections, payments and export.
- The generation provider could change without rewriting the orchestration.
The context.
BusinessPlan.ai turns an entrepreneur's inputs into a business plan and financial projections. I owned the complete product: interface, backend, generation, financial logic, payments and infrastructure.
A key decision I owned.
I modelled generation as a dependency graph. Each part starts when its inputs are ready, and a failure retries only the affected work. Provider choices stay separate from orchestration.
What I built.
- Dependency-aware generation with targeted retries and concurrency controls.
- A fast preview followed by full background generation, using validated structured output.
- A financial engine built from testable functions for revenue, expenses, cash flow and balance-sheet projections.
- PDF, document and presentation exports, localisation, authentication and payments.
Engagement details
- Role
- Sole Developer
- Years
- 2025
- Terms
- Contract. Remote (US).
- Demonstrates
- End-to-end ownership. AI generation orchestration. Financial modelling. Speed.
- Stack
- TypeScript, Next.js, React, Prisma, tRPC, PostgreSQL, Trigger.dev, Vercel AI SDK, Stripe, Clerk