Crypto Trading Platform & Portfolio Management
Budget: $2 – $8 USD
I’m building a cryptocurrency trading platform and need a developer who can own the portfolio-management side of the product. The core of your work will be a module that lets users see every position across connected exchanges in real time, then runs meaningful risk assessment on top of that data.
Here’s what I have in mind: once a user links an API key, the system should pull balances and trade history, store everything in PostgreSQL, and continuously calculate exposure metrics—value at risk, asset and sector concentration, drawdown, even a quick stress-test against historic crashes. When a threshold is breached, users receive an alert straight inside the React dashboard (and optionally by email or push).
The order-execution engine is already under development; you’ll plug into it through REST and WebSocket endpoints. I’m comfortable with either Node.js or Python for the service layer—choose whichever you can deliver faster, as long as the code ships Docker-ready, fully tested, and follows security best practices (encrypted credential storage, OAuth flows, proper rate limiting).
Deliverables
• API specification and database schema for portfolio and risk data
• Service that ingests balances/trades, schedules calculations, and exposes results
• React components that visualise risk (charts, heatmaps, downloadable CSV)
• Unit/integration tests plus concise technical hand-off notes
Acceptance criteria: risk figures match provided benchmark data within ±0.1 %, stress tests finish under two seconds for 5 000 positions, code passes linting and spins up cleanly in Docker Compose. I’m targeting an alpha release in about four weeks and am happy to structure the work into weekly milestones.
Here’s what I have in mind: once a user links an API key, the system should pull balances and trade history, store everything in PostgreSQL, and continuously calculate exposure metrics—value at risk, asset and sector concentration, drawdown, even a quick stress-test against historic crashes. When a threshold is breached, users receive an alert straight inside the React dashboard (and optionally by email or push).
The order-execution engine is already under development; you’ll plug into it through REST and WebSocket endpoints. I’m comfortable with either Node.js or Python for the service layer—choose whichever you can deliver faster, as long as the code ships Docker-ready, fully tested, and follows security best practices (encrypted credential storage, OAuth flows, proper rate limiting).
Deliverables
• API specification and database schema for portfolio and risk data
• Service that ingests balances/trades, schedules calculations, and exposes results
• React components that visualise risk (charts, heatmaps, downloadable CSV)
• Unit/integration tests plus concise technical hand-off notes
Acceptance criteria: risk figures match provided benchmark data within ±0.1 %, stress tests finish under two seconds for 5 000 positions, code passes linting and spins up cleanly in Docker Compose. I’m targeting an alpha release in about four weeks and am happy to structure the work into weekly milestones.