The technical decisions behind a real-time financial intelligence terminal.
Type-safe, auto-documented API framework with Pydantic v2 for request and response validation.
Built on asyncio and aiohttp from day one. Every I/O operation is non-blocking, enabling high concurrency on a single process.
SQLAlchemy ORM with aiosqlite for async local storage. Zero external database dependencies for development.
MsgPack encoding for API responses delivers 30-40% smaller payloads compared to JSON, reducing bandwidth and parse time.
Production-grade Uvicorn ASGI server with configurable workers and graceful shutdown.
Structured JSON logging with request tracing, correlation IDs, and performance timing on every endpoint.
Full strict-mode TypeScript with no-any enforcement. Every component, hook, and API call is type-safe.
Vite build tooling with hot module replacement under one second. No full-page reloads during development.
TanStack Query handles caching, refetching, stale management, and background updates automatically.
Lightweight Zustand stores for UI concerns: sidebar state, theme preference, workspace configuration.
Recharts for composable, declarative charting with responsive containers and custom tooltips.
Token-based design system with CSS custom properties. Dark-default with full light mode parity. No framework dependency.
Persistent WebSocket connections for streaming quotes, trades, and order book updates with minimal latency.
Detects patterns across insider trades, options flow, and filings. Cluster detection, first-buy identification, and cross-source signal classification.
Automatic reconnection with exponential backoff and jitter. Connections recover gracefully without user intervention.
Missed messages during disconnection are replayed on reconnect so the client never has stale state.
30-second quote cache integrated with React Query. Prevents redundant network requests while keeping data fresh enough for active trading.
Twelve or more distinct data feeds ingested and normalized into a unified schema. Each source is validated, normalized, and deduplicated at ingest.
Every data point carries a provenance timestamp and source identifier. Full lineage from origin to display.
SQLite-powered screener with optimized multi-factor queries across the entire dataset with sub-second response times.
Smart tiered caching strategy with TTL-based invalidation. Hot data stays in memory, warm data on disk, cold data fetched on demand.
Anthropic Claude, OpenAI GPT, and Voyage AI embeddings behind a unified interface. Switch providers without changing application code.
Requests are classified by intent. Simple lookups hit fast models; complex synthesis tasks route to frontier models.
Automatic fallback across providers with circuit breaker pattern. If one provider degrades, traffic shifts instantly.
Prompt caching for repeated system prompts and common queries. Reduces cost and latency on high-frequency patterns.
FinBERT for domain-specific financial sentiment analysis. Purpose-built for earnings calls, SEC filings, and market commentary.
Retrieval-augmented generation over SEC filings and financial documents. Grounded answers with source citations.
Per-user quota management with real-time cost tracking across all AI providers. Budget controls prevent runaway spend.
We target sub-100ms on warm reads and track live p95 publicly on /status. Cold reads and external-provider round-trips are slower; we’re honest about the difference rather than quoting the best case.
Semaphore-based concurrent request limiting prevents upstream rate limits and protects system stability under load.
Every route is lazy-loaded with React.lazy and Suspense. Users only download the code they need.
Mutations update the UI instantly and reconcile with the server response. Rollback on failure.
Content-shaped skeleton placeholders instead of spinners. Reduces perceived load time and layout shift.
Per-route code splitting with shared vendor chunks. Initial bundle stays small regardless of total feature count.
If you care about real-time systems, financial data, and shipping fast — we want to hear from you.
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