AssemblyAI

AssemblyAI provides speech AI APIs that transcribe and extract insights from audio to make voice data searchable and actionable. The company delivers cloud-hosted speech-to-text and audio…

saasassemblyai.com

AssemblyAI

AssemblyAI provides speech AI APIs that transcribe and extract insights from audio to make voice data searchable and actionable. The company delivers cloud-hosted speech-to-text and audio…

saasassemblyai.com

HQSan Francisco, US

Team Size104

Open Jobs7

Total Funding$113M

Latest Fundraise2 years ago

TL;DR

Headquarters / Focus: Voice AI — speech-to-text and speech-understanding APIs for developers and enterprises

Founded: 2017

Latest disclosed round: Series C $50M (Dec 2023, led by Accel)

Total funding reported: ~$115M

Notable capabilities: Transcription, summarization, sentiment, topic detection, moderation, PII redaction

Company Overview

Problem Domain

Making voice data searchable, analyzable, and actionable across contact centers, media, and analytics use cases.

Founded

2017

Industry

Software Development

Tech Stack

Proprietary speech recognition models

LLM-based frameworks (e.g., LeMUR)

Cloud-hosted APIs

Funding Track Record

Series C- 2023-12-04

$50,000,000

Participation from Insight Partners, Y Combinator, and individual investors

Series A (or prior disclosed round)- 2022-03-04

$28,000,000

Investor Signal

“Accel leading multiple rounds; participation from Insight Partners, Y Combinator, and notable individual investors (e.g., Nat Friedman, Daniel Gross, Keith Block, John Collison)”

Founders

What we do

Join the Team

Senior Software Engineer, Streaming

On-SiteFully, Valais, CH

On-Site • Fully, Valais, CH

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Design and ship customer-facing APIs that expose new model capabilities, owning them from prototype through launch and ongoing iteration.
Partner with researchers to productionize new techniques, ensuring latency, reliability, and ergonomics are maintained.
Work with customers and Applied teams to understand how users are building with our products and feed that back into product design and research direction.
Contribute across the stack as needed: backend services, inference infrastructure, SDKs, internal tooling.

Experience

Strong backend engineering experience, including building and supporting customer-facing APIs in production.
Comfort operating with ambiguity.
Genuine curiosity about AI/ML and the ability to make good engineering decisions around them.
Strong collaboration skills, working daily with researchers, applied engineers, and sometimes customers.

Salary and Perks

Pay range: $200K - $225K

About AssemblyAI Industry-leading Speech AI models to automatically recognize and understand speech.

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