Middle+ Back-End Developer (CCTV) - iGaming/Betting
- Зарплата:
- $2 900 - $3 500 на місяць
- Рівень:
- middle
- Джерело:
- djinni.co
Що робити
- Design and develop the betting engine using Node.js, TypeScript, and Express 5: round lifecycle, outcome and payout calculation, idempotent operations.
- Implement the real-time layer with WebSocket/Socket.IO, featuring synchronized broadcast delays (bet-lock, front-running protection).
- Build event-driven pipelines with Kafka/KafkaJS and analytics/anti-fraud storage on ClickHouse.
- Integrate HLS feed parsing (.m3u8) and a computer vision service; implement provably-fair (commit-reveal) mechanisms.
- Work with PostgreSQL/Prisma and Redis (caching, round state management, rate-limiting); set up observability (PostHog, Pino).
Що очікуємо
- 3+ years of back-end development experience with Node.js and TypeScript.
- Hands-on experience with real-time/WebSocket and high-load services (latency, concurrency, consistency).
- Confident work with PostgreSQL and Redis; understanding of transactions, idempotency, and race conditions.
- Experience with message brokers (Kafka or similar) and building event-driven pipelines.
- Understanding of service reliability: logging, metrics, failure handling, testing.
Що пропонуємо
- ClickHouse or other analytical/column-oriented databases; anti-fraud logic.
- Experience with video streaming (HLS/RTMP), computer vision, provably-fair/cryptography (HMAC).
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