> Markdown version of [/jobs/ext/4586559-agent-runtime-engineer](https://www.wearedevelopers.com/jobs/ext/4586559-agent-runtime-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Agent Runtime Engineer - **Company:** ONE STOP COLLECTIBLE CORP - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** AI Evaluation, Application Programming Interfaces (APIs), Distributed Systems, Inference Optimization, Service-Oriented Architecture, Systems Integration, Large Language Models - **Published:** November 5, 2026 - **Apply:** https://startup.jobs/ai-phone-senior-agent-runtime-engineer-bjak-my-10677381 ## About the Role * Strong backend engineering experience. * Experience with distributed systems and asynchronous workflows. * Experience integrating LLMs into production applications. * Strong API and service architecture knowledge. * Experience with queues, state management and observability. * Good understanding of tool calling and structured outputs. Nice to have * Production agent framework or custom agent runtime experience. * Experience with Temporal or similar workflow orchestration systems. * Experience with model routing and inference optimization. * Experience with AI evaluation and tracing. ## Description * Implement agent runtime and orchestration components. * Build tool-calling and execution interfaces. * Support multi-step and long-running task execution. * Manage task state, execution history and asynchronous workflows. * Implement error handling, retries and recovery mechanisms. * Integrate multiple model providers. * Build observability and tracing for agent execution. * Optimize latency, reliability and inference costs. * Work with context and memory components to provide relevant information to agents.