JavaScript Engineer

About US: We are a company that provides innovative, transformative IT services and solutions. We are passionate about helping our clients achieve their goals and exceed their expectations. We strive to provide the best possible experience for our clients and employees. We are committed to continuous improvement and innovation, and we are always looking for ways to improve our services and solutions. We believe in working collaboratively with our clients and employees to achieve success.

DS Technologies Inc is looking for JavaScript Engineer role for one of our premier clients.


Job Title: JavaScript Engineer
Location: FL, NY, or AZ (Onsite)
Position Type: Contract
Only W2

Job Description:
We are looking for a JavaScript Engineer with advanced knowledge of JavaScript internals and modern backend/event-driven architectures.


Required Skills & Expertise:

• Advanced knowledge of JavaScript internals
• Strong experience with Node.js or core JavaScript libraries
• Experience with event-driven and reactive patterns
• Hands-on experience with real-time communication technologies:
  • WebSockets
  • WebRTC
  • SSE
  • MQTT
• Experience with message queue and streaming platforms:
  • Kafka
  • RabbitMQ
  • Redis Streams
  • NATS
  • Pulsar
• Strong understanding of horizontal scaling patterns, including:
  • Load balancers
  • Clustering
  • Sharding