Senior Software Engineer Agent Platform

Decagon is a conversational AI platform for enterprises to build, operate, and optimize customer-facing AI agents across voice, chat, email, SMS, and other channels.

San Francisco, United States
About Decagon

Decagon provides an AI concierge platform for customer experience teams. Its Agent Operating Procedures (AOPs) use natural-language workflows to define agent behavior, while the platform supports agent development, testing, analytics, and omnichannel deployment.

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Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will design and operate distributed systems that govern AI-agent execution. You will build runtime and control-plane systems, optimize latency and reliability, investigate failures, run experiments, and improve testing, simulations, observability, and real-time voice systems.

Requirements

  • Experience building distributed systems or backend platforms in production
  • Experience owning systems from design through production and iteration
  • Familiarity with experimentation, evaluation, or data-driven improvement loops
  • Experience improving reliability, performance, and observability
  • Ability to debug complex systems and identify root causes

Responsibilities

  • Design and evolve agent harnesses
  • Build runtime systems and multi-model orchestration
  • Develop control-plane logic for routing, planning, and tool invocation
  • Optimize agent systems for latency, reliability, and production correctness
  • Analyze failures and drive iterative improvements with data
  • Build and operate online experimentation and contribute to offline evaluations
  • Improve observability, testing, and simulation systems
  • Contribute to voice and real-time systems

Benefits

  • Medical, dental, and vision benefits for employees and their families
  • Life insurance and disability benefits
  • Retirement plan
  • Parental leave
  • Fertility and family-building benefits through Carrot
  • Monthly wellness, lifestyle, and work-life-balance stipend
  • Daily office lunches and snacks
  • Flexible vacation policy
Senior Software Engineer Agent Platform at Decagon | JobStash