Bubble FinTech App Architecture
Loan origination, payment dashboards, insurance quotes, expense management, and investment trackers — how to architect financial products on Bubble using the orchestration pattern that keeps regulated logic in specialist APIs.
Financial Products on Bubble — The Honest Picture
Dividend Finance processes over $1 billion in loans. Multiple insurance, lending, and payments platforms run on Bubble in production. The key insight is the same across all of them: Bubble is the orchestration layer and UI, not the financial processing engine. Complex calculations, regulatory compliance, and transaction processing happen in specialist external APIs. Bubble manages state, drives user workflows, and presents data. This separation of concerns is what makes FinTech on Bubble possible — and powerful.
Four FinTech Product Types and Their Bubble Architecture
Loan Origination Portal
Broker or customer-facing application form with document upload, eligibility pre-check via external API, status tracking through underwriting, e-signature for loan documents, and disbursement notification. Bubble orchestrates — the LOS (loan origination system) processes.
Payment Operations Dashboard
Internal dashboard for operations teams to monitor transactions, flag suspicious activity, trigger manual reviews, process refunds, and export settlement reports. Bubble displays data pulled from payment processor APIs; actions trigger API calls back to the processor.
Investment Portfolio Tracker
Connect to brokerage APIs (Alpaca, Interactive Brokers) to pull holdings and performance data. Display portfolio dashboards, allocation charts, and P&L summaries. Bubble reads from the API; trade execution happens through the brokerage’s own system.
Insurance Quote Platform
Customer-facing quote tool: collect risk parameters via multi-step form, call underwriting API for real-time quote, present options, collect payment via Stripe, issue policy document via PDF generation. All orchestrated in Bubble with specialist APIs at each step.
Expense Management SaaS
Multi-tenant expense submission, approval workflows, accounting system sync (Xero or QuickBooks via API Connector), receipt OCR (AWS Textract or Google Vision), and monthly reporting. Bubble manages the workflow; accounting APIs handle the books.
Crypto Portfolio Manager
Connect to CoinGecko or CoinMarketCap for price data, let users log holdings manually or via exchange API import, calculate portfolio value, track performance over time, and set price alerts via scheduled workflows.
Handling Compliance in a Bubble FinTech App
| Requirement | Bubble Approach | External Tool |
|---|---|---|
| KYC / Identity Verification | Embed or redirect to verification flow, webhook confirms verification status, update User record | Stripe Identity, Jumio, Persona, Onfido |
| AML / Transaction Monitoring | Pass transaction data to monitoring API on each financial event, store risk score on Transaction record | ComplyAdvantage, Unit21, Sardine |
| Audit Trail | Append-only Audit Log data type: every action creates a record, no editing or deleting allowed via privacy rules | Built in Bubble — supplement with CloudWatch for API-level logs |
| Data Encryption at Rest | Bubble’s AWS infrastructure encrypts all data at rest. Sensitive fields (SSN, account numbers) should additionally be encrypted before storage using Toolbox + crypto library | Bubble’s SOC 2 covers base encryption |
| PCI DSS (card data) | Never store card data in Bubble. Use Stripe Elements — card data goes directly to Stripe’s servers, never touching Bubble | Stripe handles all PCI scope |
| GDPR / Data Deletion | Build a “Delete My Account” workflow that anonymises PII fields rather than deleting records (preserves audit trail) | Built in Bubble workflows |
Bubble Is SOC 2 Type II Certified
As of 2023, Bubble.io holds SOC 2 Type II certification. This covers security, availability, and confidentiality controls at the platform level. For enterprise FinTech customers who ask about security compliance, you can reference Bubble’s certification and request their latest audit report from Bubble’s sales team.
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