Marin Dulja

Building and operating personal-finances.app — a webapp product with real users (see Featured Project below). Sole ownership from system design through deployment and payment integration.

Part of a remote AI-trading platform project; implemented core backend features to support AI-generated trading signals for crypto, forex, and futures. Delivered end-to-end signal ingestion, validation, processing, and distribution; managed payloads, signal pricing, and real-time recommendations; extended signal coverage to new instruments and enabled real-time streaming via WebSocket for subscribed clients; integrated RabbitMQ for messaging and added per-asset alert preferences and monitoring.

Built core backend infrastructure for a real-time trading intelligence platform delivering AI-generated signals across crypto, forex, and futures markets to support 10,000 users. Delivered 70+ end-to-end tasks in 7 months; engineered real-time trading signal pipelines using RabbitMQ, WebSockets, PostgreSQL, and MongoDB; shipped revenue-critical features including community chat, Stripe subscription billing, and push notifications; increased stability through integration tests; owned feature lifecycle from design to deployment.