Decagon

conversational AI

SeniorResearchEngineer,Voice+Speech

$200–400k San Francisco, California, United States FULL TIME
The Brief

“Senior Research Engineer, Voice + Speech at Decagon. Skills: Voice Research Engineering, Conversational AI, LLM Deployment. Lead research and engineering efforts to improve core conversational capabilities in production. Build and iterate on end-to-end models and pipelines that optimize for quality, efficiency, and user experience”

What You'll Achieve.

make our agents more accurate, robust, and efficient in real-world deployments; push the frontier of applied conversational AI; agents that reliably understand nuanced intent, track long context, and take the right actions under uncertainty; higher resolution rates; better user satisfaction; consistent behavior at scale; optimize for quality, efficiency, and user experience; ship real improvements; make high-impact technical decisions

Industry & Context.

conversational AI
Problems you'll solve

break ambiguity into milestones

What They're Looking For.

Must Have

5+ years of experience in AI/ML engineering or research, Prior experience post-training and deploying LLMs in production environments, Fluency in Python, Fluency in modern ML tooling (training, evaluation, data pipelines), Track record of taking research ideas from prototype → reliable, measurable production impact, Ability to define a roadmap, break ambiguity into milestones, and lead cross-functional execution

What You'll Do.

Lead research and engineering efforts to improve core conversational capabilities in production

Build and iterate on end-to-end models and pipelines that optimize for quality

Break down ambiguous research ideas into clear

iterative milestones and roadmaps

Drive models and algorithms into production

Own multi-quarter initiatives that advance speech understanding

and resilience in real-world conditions

Design and implement frontier approaches for training

and orchestration across the voice agent

How You'll Work.

Team & Collaboration

Partner with platform and product engineers to integrate new models into production systems; Mentor other researchers/engineers; Lead cross-functional execution

Process & Methodology

Ability to define a roadmap, Break ambiguity into milestones

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