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Senior NodeJS Engineer

United States, Mountain View, California 200000.00 - 250000.00 USD / Year · Job Posted December 09, 2025
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Job Description

This summer, Inworld launched a new platform for consumer AI applications, and we’re looking for an ambitious and capable Senior NodeJS Engineer to join us and take this platform even farther. The core of this platform is the @inworld/runtime NPM package for Node-based AI applications, which utilizes our TTS, LLM, and other APIs. Additionally, there are cloud services for features like dynamic A/B experiments, and a web experience to tie it all together. As a Senior NodeJS engineer, you would contribute significantly to the @inworld/runtime package.

Job Responsibility

  • Establishing prioritized feature scope: Collaborate with the PMs, engineers and leads to determine the biggest product needs to focus on now.
  • Collaborating, executing, delivering: This is the core of the building loop. We aim to optimize for both speed and quality.
  • Reflecting and driving improvements: Advocate for and realize foundational improvements, even while staying busy with feature work.

Requirements

  • Excellent programming skills and experience in JavaScript and TypeScript
  • A solid grasp of NodeJS fundamentals: events, the event loop, streams, async, etc.
  • Excellent verbal and written communication skills, can collaborate and coordinate with other roles and engineer with ease, trusted and well-regarded teammate
  • Candidates must be based in the SF Bay Area or willing to relocate (you will be working on-site in our South Bay office a few days a week).

Nice to have

  • Comfortable with C++ programming.
  • Experience with Node interop with C++ code via the Node API.
  • Familiarity with Cursor or other AI-assisted coding tools
  • Experience building AI-centric web apps and familiarity with AI and ML concepts

What we offer

equity and benefits

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