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Machine Learning Engineer

United States
Visa Sponsorship Relocation
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Build and scale the voice interface for Wispr Flow, handling LLM inference and personalization. Design infrastructure for sub-500ms inference across millions of global requests. Prototype new features and optimize ML systems for research and production use.

Key Highlights
Scaling voice interface to a billion users
Optimizing ML inference for <500ms latency
Building infrastructure for millions of daily requests
Fine-tuning and RL for speech model personalization

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Key Responsibilities
Prototype and design new features of the voice interface
Build infrastructure to handle <500ms LLM inference for millions of requests worldwide
Scale personalization of speech models and LLMs with fine-tuning and reinforcement learning

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Technical Skills Required
Python LLM development ML inference optimization

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Benefits & Perks
Equity on employee-friendly terms
Health, dental and vision insurance
401(k) with up to 4% match
16 weeks paid parental leave
Flexible time off and company holidays
All meals in the office
Commuter benefits and relocation reimbursement
High-spec laptop, monitor, and microphone
Regular team events and off-sites

Job Description

We're building the first voice interface a billion people use every day.Our first product, Flow, lets you talk instead of type anywhere on your computer or phone, and turns messy speech into polished text that is ready to send. It's scaled from $2M → $50M in ARR in under 12 months with millions of users and thousands of enterprise customers. Read the master plan →The team is still small enough that every person shapes what gets built.
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Job Overview
Posted Jul 29, 2026
Employment Full-time
Experience Not Applicable
Location United States
Category Programming
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