Senior Software Engineer, Backend (ai Agent Integrations)

Cresta Cresta · Vertical AI · AB, Canada, Canada · Remote · Engineering

Backend engineer to build systems for integrating AI Agents with enterprise CCaaS platforms, managing conversation state, and enabling seamless AI-to-human handoffs in real-time contact center environments.

What you'd actually do

  1. Design and build scalable backend services that integrate Cresta’s AI Agents with customers’ CCaaS platforms.
  2. Architect systems that manage real-time conversation state, context propagation, and session lifecycle.
  3. Implement seamless AI-to-human handoff mechanisms, ensuring full context transfer and minimal disruption to the customer experience.
  4. Develop secure and reliable integrations with CCaaS APIs (voice, chat, messaging, routing, agent desktop, etc.).
  5. Collaborate closely with ML engineers and AI researchers to operationalize AI Agent capabilities in live environments.

Skills

Required

  • building scalable backend systems in production environments
  • designing and maintaining robust APIs (REST, gRPC)
  • distributed systems
  • real-time communication architectures
  • integrating with third-party enterprise platforms and APIs
  • cloud platforms such as AWS, GCP, or Azure
  • system reliability
  • observability
  • security in enterprise environments

Nice to have

  • Experience working with CCaaS platforms or contact center systems
  • Familiarity with AI Agents, Virtual Agents, or LLM-based systems
  • Experience with containerized environments (Kubernetes, Docker)

What the JD emphasized

  • seamlessly integrate with customers’ CCaaS platforms
  • seamlessly hand off conversations to human agents
  • AI Agent orchestration

Other signals

  • building enterprise-grade AI Agents
  • integrating with CCaaS platforms
  • real-time systems
  • AI-to-human handoff