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Sendbird company · OPEN ROLE

Sendbird

Software Engineer, AI Agent

Seoul, South Korea · Engineering · AI

Company
Connect customer memory with governed actions across channels.
Role
Own agent architecture, evaluations and delivery.
Language
Native-level English

What you will do

We rewrote the responsibilities and qualifications in plain language instead of copying the original posting.

Responsibilities

  • Owns end-to-end delivery of core AI agent features, from architecture through production.
  • Designs and builds advanced RAG pipelines, multi-step tool use, and agent orchestration logic.
  • Drives architecture decisions for the agent platform with a focus on fault tolerance and scalability.
  • Builds and optimizes evaluation, observability, and classification pipelines that improve agent performance.
  • Leads prompt engineering strategy for diverse customer cases, including A/B testing and regression pipelines.
  • Guides junior engineers through code reviews, architecture discussions, and technical planning.

What you need

  • Has 3+ years of software engineering experience owning AI/ML or backend systems in production.
  • Has deep Python expertise and a track record of building and scaling reliable, performant systems.
  • Has hands-on experience with LLM APIs.
  • Has strong system design and architecture skills, including distributed systems on AWS or GCP.
  • Has the English proficiency to communicate complex technical ideas clearly in writing and conversation.

Good to have

  • Has prior experience with real-time or conversational interfaces.
  • Has hands-on experience with agentic frameworks such as LangChain or LangGraph.
  • Is familiar with vector databases, search technologies, or large-scale data processing.
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Checked 2026-10-10

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