United States of America Remote (Country) Employment

Close is hiring a Senior Backend Engineer – Agents (USA Only - 100% Remote)

Responsibilities

  • Develop and deploy code execution capabilities for an intelligent assistant that dynamically generates code when it provides better results than static responses, starting with on-the-fly data visualizations and expanding to custom tools and external API integrations.
  • Design and implement evaluation and observability systems to measure agent performance, using tools like LangFuse and internal platforms to ensure improvements are measurable before deployment.
  • Advance backend-driven user interface generation, where the system determines optimal data presentation formats such as tables, charts, or widgets, enabling users to create custom reports dynamically.
  • Lead the development of event-triggered agents that respond in real time to CRM activity, such as drafting email replies based on context and knowledge sources, with user approval workflows.
  • Integrate deterministic workflow logic with non-deterministic AI steps to ensure reliable execution of critical sales processes while leveraging intelligent automation where appropriate.
  • Manage edge cases to maintain agent reliability, including handling interruptions due to resource limits, ensuring proper pause and recovery mechanisms, and preventing delayed or duplicate actions.
  • Evaluate and route tasks to appropriate AI models based on cost and capability, ensuring efficient use of resources by avoiding high-cost models for simple tasks like summarization.

Work Arrangement

Remote (Country)

Other

  • This position is available at multiple levels—Software Engineer, Senior, and Staff. Candidates are not required to specify a level; alignment will be determined during the hiring process.
  • Engineers may be reassigned to different teams as priorities evolve. Most team members work across multiple projects over time, beginning with this team but expected to contribute to various initiatives.
  • Applications that appear to be entirely AI-generated will not be considered.
  • All applicants will receive a response from the hiring team regarding their application status, regardless of fit.
About company
Close
Close builds a CRM product. The company's tech stack includes a single-page TypeScript web app mostly written in React, a React Native mobile app, and a backend with Python/Flask, MongoDB, Postgres, Elasticsearch, and Redis. They run services in Docker on AWS and emphasize performance, maintainability, and testability.
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Job Details
Department Engineering
Category backend
Posted a month ago