Java script Developer

Title : Java script Developer Onsite FL,NY or AZ

Location : Sunrise FL / NYC,NY or phoenix AZ

Pay rate : $ / hr on W

Requirements :

• Advanced knowledge of JavaScript internals (V engine behavior, GC, async loop, closures, prototypal inheritance).
• years developing systems with or core Java script libraries • Expertise with : • Event-driven and reactive patterns
• WebSockets / WebRTC / SSE / MQTT
• Message queues (Kafka, RabbitMQ, Redis streams, NATS, Pulsar)
• Horizontal scaling patterns (load balancers, clustering, sharding)
• Experience building microservices and distributed systems.
• Strong understanding of networking (TCP / UDP), HTTP / WebSockets, concurrency models.
• Deep debugging and performance profiling experience.