Inworld

Staff / Principal Software Engineer - USA

Inworld
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over 1 year ago
Mountain View, CA, USAStaff+
H1B sponsor

Base Salary

$280k - $350k/yr

Responsibilities

  • Own core Inworld Router systems for multi-provider failover, cost- and latency-based routing, live A/B experimentation, and real-time observability at massive scale.
  • Build and scale Realtime API, TTS/STT, LLM, Knowledge/RAG, and other API-based model services.
  • Develop control, optimization, platformization, developer tooling, billing, and other infrastructure capabilities.
  • Collaborate with product managers, engineers, leads, and sibling machine learning teams to determine priorities and deliver products quickly.
  • Operate with technical autonomy by selecting appropriate dependencies, standards, and implementation approaches.
  • Drive system and engineering improvements while balancing speed and quality.

Requirements

  • Excellent programming skills in a statically typed backend language, preferably Go, Python, C++, or Rust.
  • Experience developing and deploying cloud-based services handling at least hundreds of queries per second.
  • Experience with relational databases such as PostgreSQL or MySQL.
  • Hands-on experience with caching systems such as Redis or Memcached, pub/sub or queues, data pipelines such as Flink or Beam, and cloud storage.
  • Excellent verbal and written communication skills and the ability to collaborate effectively with product, engineering, and other roles.
  • Experience building API gateways, routing or proxy layers, or multi-provider orchestration systems is a bonus.
  • Experience with analytics or timeseries databases such as ClickHouse, Timescale, or InfluxDB is a bonus.
  • Experience with OpenTelemetry is a bonus.
  • Experience with C++ is a bonus.

Benefits

  • Equity and benefits in addition to base pay
  • Full-time position
  • Candidates must be based in the San Francisco Bay Area or willing to relocate
  • On-site work in the South Bay office a few days per week

Tech Stack

Apache BeamApache FlinkC++ClickHouseGoInfluxDBMySQLPostgreSQLPythonRedisRust

Categories

Inworld

About Inworld

51-200 employees

Inworld builds real-time voice AI and agent infrastructure for developers, including text-to-speech, speech-to-speech, speech recognition, and LLM routing delivered via APIs and SDKs. Customers use it to create interactive characters and agentic experiences in games, apps, and virtual worlds; revenue comes from usage-based and enterprise licensing. Founded in 2021 and headquartered in Mountain View, California, the company is privately held and works with game studios and large technology firms.

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