Machine Learning Engineer – Live Agent, Post-Processing

Plaud

. Design and iterate on "post-processing" test suites and automated evaluation platforms for multilingual, multi-model online systems, covering hallucinations, casing, formatting (numbers/punctuation), and segmentation (chunking/forced breaks).

Posted 4/21/2026full-timeSan Francisco • California • 🇺🇸 United StatesMid-LevelSenior💰 $150,000 - $240,000 per yearWebsite

About the role

Key responsibilities & impact

Design and iterate on "post-processing" test suites and automated evaluation platforms for multilingual, multi-model online systems, covering hallucinations, casing, formatting (numbers/punctuation), and segmentation (chunking/forced breaks).
Establish specialized evaluation benchmarks for LiveAgent systems, focusing on VAD false triggers, interruption latency, and turn-taking transitions.
Resolve "high-friction" issues—such as hallucinations, casing inconsistencies, and poor segmentation—that negatively impact user experience, achieving SOTA precision on par with industry leaders.
Optimize VAD, barge-in (interruption) models, and turn-taking strategies to minimize end-to-end latency and False Interruption Rates, benchmarking against top-tier global voice assistants.

Requirements

What you’ll need

1–3 years of hands-on experience in speech algorithm training with a focus on speech pre/post-processing or the optimization of Full-Duplex voice interaction systems.
Proven experience in ASR pre-processing (e.g., VAD, denoising) or post-processing (e.g., ITN, punctuation, text normalization).
A track record of publishing at top-tier speech conferences (e.g., Interspeech, ICASSP) or a portfolio of speech-related invention patents.

Benefits

Comp & perks

Top-tier healthcare for employees and dependents, including dental and vision, and a generous employer subsidy.
401(k) plan for full time employees with company matching.
Unlimited PTO, plus 13 paid holidays.
12 weeks of paid time off to spend time with your new family, regardless of gender.
Minimum of 3x in office per week.
New hires are equipped with their choice of new top-of-the-line laptops and workstation setups.
Best office equipment. Annual offsites. Free office drinks and snacks.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

speech algorithm trainingASR pre-processingVADdenoisingITNpunctuationtext normalizationFull-Duplex voice interaction systemspost-processing test suitesautomated evaluation platforms

Soft Skills

problem-solvingattention to detailuser experience optimizationcollaborationcommunication