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Level AILevel AIUnited States

Senior Backend Engineer - AI Agents

Senior backend engineer building scalable, real-time systems and orchestration frameworks that power production-grade AI Agents for enterprise contact centers.

Salary not listed
Remote5+ YOEBackend Engineering

About the role

Responsibilities

  • Design and build scalable backend systems powering AI Agents that operate in real-time enterprise environments
  • Develop agent orchestration frameworks (multi-step reasoning, tool usage, decisioning workflows)
  • Build systems for agent memory, context management, and state persistence across interactions
  • Architect low-latency inference pipelines integrating LLMs, SLMs, and external tools/services
  • Implement evaluation (evals) frameworks to measure agent performance, accuracy, and reliability
  • Enable continuous improvement loops (feedback → retraining → deployment) for AI agents in production
  • Design and manage event-driven, asynchronous workflows for complex agent tasks
  • Optimize systems for high throughput, low latency, and cost-efficient inference at scale
  • Build and maintain robust APIs and service layers (REST / gRPC) for agent capabilities
  • Partner closely with Applied AI / ML teams to productionize models and agent behaviours
  • Collaborate with Product and Solutions teams to translate real customer workflows into agentic systems
  • Drive best practices in observability, monitoring, safety, and guardrails for AI systems
  • Contribute to architecture decisions for scaling multi-tenant, enterprise-grade AI platforms

Requirements

  • 5+ years of experience in backend engineering, distributed systems, or platform engineering
  • Strong experience building high-scale, production-grade backend systems
  • Experience designing systems for real-time processing, streaming, or event-driven architectures
  • Strong understanding of API design (REST, gRPC) and microservices architectures
  • Experience with databases (SQL + NoSQL) and data modeling for high-scale systems
  • Hands-on experience with Docker, Kubernetes, and cloud platforms (AWS/GCP/Azure)
  • Strong fundamentals in system design, concurrency, and performance optimization

Nice-to-Haves

  • Experience working with LLMs, conversational AI, or AI-powered products in production
  • Familiarity with agent frameworks, tool calling, or multi-step reasoning systems
  • Experience building or integrating RAG pipelines, vector databases, or retrieval systems
  • Exposure to evaluation systems (offline/online evals, A/B testing for AI systems)
  • Understanding of prompting strategies, context windows, and model behavior optimization
  • Experience with real-time decisioning systems or workflow orchestration engines

Skills

PythonJavaGoRestgRPCDockerKubernetesAWSGCPAzureSQLNoSQLDistributed SystemsEvent-Driven ArchitectureMicroservices
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