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Senior Backend Engineer – Communications (USA Only - 100% Remote)

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about 5 hours ago
Remote, United StatesSenior / Mid Level / Staff+

Base Salary

$140k - $210k/yr

Responsibilities

  • Overhaul the email and calendar sync engine for improved performance and reliability.
  • Expand voice agent capabilities for live conversations.
  • Develop solutions for inbound call handling and routing.
  • Build native scheduling features within the Close platform.
  • Design systems for human orchestration of agentic workflows.
  • Enhance connect and answer rates through telephony improvements.
  • Advance the streaming and event infrastructure using technologies like Kafka and Redis.

Requirements

  • Proven experience as a backend engineer with proficiency in Python and familiarity with Go, Rust, or TypeScript.
  • Deep knowledge of email and calendar platforms, including IMAP and sync protocols.
  • Experience with real-time and async distributed systems such as WebRTC and WebSockets.
  • Familiarity with AI applications in real-time workflows, including live transcription and voice agents.
  • Ability to navigate complex telephony systems and edge cases.
  • Experience using AI tools to enhance coding and workflow efficiency.