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Software Engineer

LOCATION: Brooklyn, New York (Onsite M-F)💼 Full-time🗓 2026-07-26

Core

Build and maintain Python-based systems for Voice AI assistants that handle millions of customer calls for eCommerce and healthcare clients.

Role type

Senior Software Engineer (Voice AI/LLM)

Builds

Voice AI assistant pipelines, conversational workflows, and low-latency voice experiences for enterprise clients.

Domain

Voice AI, Large Language Models (LLM), Conversational AI

Deliverable

production ML models | product features

Required skills

Python (asyncio, decorators, dataclasses, inheritance), REST APIs, OAuth2/JWT authentication, data analytics pipelines, FastAPI, Pipecat

Preferred skills

LLM prompt engineering, fine-tuning/deploying LLMs, TTS/STT pipelines, AWS/GCP/Kubernetes, Ansible

Technologies

Python, FastAPI, Pipecat, AWS, Google Cloud, Kubernetes, Ansible, Tableau, Looker, Grafana, Omni

Responsibilities

Design and implement new features for the Flip assistant, oversee entire pipelines of the Flip assistant, develop optimized LLM interfaces, handle complex dialogue management and flows, ensure low-latency high-availability voice experiences, troubleshoot production issues across services and integrations.

Seniority

Senior, hands-on IC

Rewrite
## About the role At Flip, you'll create user experiences, design and implement new features, and oversee entire pipelines of the Flip assistant. You'll also get deep into the data, interact with our customers, and help shape the direction of the product. We have a few excellent senior engineers already on the team, one of which will become your direct mentor! You will get to work on intricate Python-based systems that interface with a wide range of external APIs, develop optimized LLM interfaces, handle complex dialogue management and flows, shape conversational workflows, and ensure low-latency, high-availability voice experiences. ## Responsibilities - Create user experiences - Design and implement new features - Oversee entire pipelines of the Flip assistant - Get deep into the data - Interact with our customers - Help shape the direction of the product - Work on intricate Python-based systems that interface with a wide range of external APIs - Develop optimized LLM interfaces - Handle complex dialogue management and flows - Shape conversational workflows - Ensure low-latency, high-availability voice experiences ## Requirements - BS in Computer Science, Mathematics or Engineering, or related scientific or technical discipline - Exceptional programming skills with a strong proficiency in Python (minimum of 3-5 years): - Ability to write pythonic code - Experience working with asyncio - Experience with decorators - Experience with advanced class usage (dataclasses, inheritance) - Experience with an array of modules - Experience with frameworks like FastAPI or Pipecat - Familiarity with REST APIs - Familiarity with authentication methods (OAuth2, JWT, Bearer Tokens, etc) - Familiarity with third-party integrations - Good working knowledge of data analytics and metrics pipelines - Experience working with data analytics systems such as Omni, Tableau, Looker, Grafana, etc - Dedication to write, iterate, deploy, and monitor work you're proud of - Ability to effectively communicate with non-technical teammates and clients when needed - Eagerness and willingness to support your teammates ## Nice to have - Experience as an LLM Prompt Engineer - Experience fine-tuning or deploying LLMs - Experience with Pipecat - Experience with TTS and STT pipelines in general - Experience working with AWS cloud services, Google Cloud, Kubernetes, and/or Ansible - Ability to know your way around a terminal - Entrepreneurial drive - Experience working at a successful startup ## What we offer - Comprehensive healthcare - Unlimited vacation, including a mandatory half week for everyone over July 4 - A full week off at the end of the year ## About the company Who The Flip Is Flip? Ever call your favorite eCommerce brand or healthcare provider, and have a crazy good Voice AI answer? That's Flip. Hundreds of brands from Under Armour and Tory Burch in retail to Experity and Fast Pace Health in healthcare trust Flip to have millions of phone calls with their customers every month. We've built our company on the idea that the best way to grow is to have a reference list as long as our customer list, and a constant belief that the team is the best thing we've built. Both are true today and increasingly so every day. Many on our team would tell you this is their favorite place they've ever worked, and the hardest they've ever worked. It's ideal for people who want to go all-in, do the work, ride the roller coaster, and have a great Flippin time doing it. We're a small and mighty team of 50 today with offices in NYC, LA, and the UK. More About Us We're international, spanning the US, UK, and Canada We've raised +$30M to date including our recent $20M Series A - backed by Ridge, Next Coast, ScOp, Bullpen Capital, Data Point and Forum Ventures, as well as founders & executives from Amazon Alexa, Ada, Attentive, and Simon Data In office 5 days/week
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