Senior Software Engineer, Platform

Decagon AI, Inc.; San Francisco (CA); On-site; USD 300,000 - 415,000; Full time

Job summary

A leading company in conversational AI seeks a Software Engineer to join their Platform Engineering team. You will design and build high-performance infrastructures to power advanced AI interactions. Ideal candidates will have strong software engineering backgrounds with expertise in Typescript and Python, and a passion for tackling complex challenges.

Benefits

Medical, dental, and vision benefits

Flexible vacation policy

Daily lunches, dinners, and snacks in the office

Qualifications

• 4+ years of industry experience in software engineering.
• High comfort level with diagnosing system failures in technology stacks.

Responsibilities

• Design an AI agent platform for complex tasks across various domains.
• Develop techniques to evaluate text and audio models.
• Architect multimodal systems for audio and text data.
• Build automation to monitor and detect issues.

Skills

Typescript

Python

Asynchronous programming

Job description

About Decagon

Decagon is the leading conversational AI platform empowering every brand to deliver concierge customer experience. Our AI agents provide intelligent, human-like responses across chat, email, and voice, resolving millions of customer inquiries across every language and at any time.

Since coming out of stealth, Decagon has experienced rapid growth. We partner with industry leaders like Hertz, Eventbrite, Duolingo, Oura, Bilt, Curology, and Samsara to redefine customer experience at scale. We've raised over $200M from Bain Capital Ventures, Accel, a16z, BOND Capital, A*, Elad Gil, and notable angels such as the founders of Box, Airtable, Rippling, Okta, Lattice, and Klaviyo.

We’re an in-office company, driven by a shared commitment to excellence and velocity. Our values—customers are everything, relentless momentum, winner’s mindset, and stronger together—shape how we work and grow as a team.

About the Team

The Platform Engineering team at Decagon designs the proprietary orchestration layer that powers the most advanced conversational AI agents for enterprise customers across voice, chat, email and SMS. Decagon’s leading customer support agents understand context, respond with genuine empathy, and solve complex problems with surgical precision.

Our mission is to deliver magical support experiences — AI agents working alongside human agents to help users resolve their issues.

About the Role

On the Platform Engineering team, you’ll architect and build the lightning-fast infrastructure that powers hundreds of millions of interactions annually. You will develop cutting-edge methods to orchestrate high intelligence models within low-latency constraints.

Engineers here own their work end-to-end and are trusted to make a real impact. This role is for someone who dives deep into complex system challenges, builds elegant solutions that scale to millions of users, and creates automation that prevents problems before they happen.

In this role, you will

• Design an AI agent platform that supports executing complex tasks across a wide range of domains precisely

• Develop techniques for evaluating state of the art text and audio models

• Architect highly asynchronous, multimodal systems that operate on both audio and text-based data

• Build automation that monitors and detects intermittent issues across hundreds of millions of interactions

Your background looks something like this

• Have 4+ years of industry experience in software engineering

• Proficiency with Typescript, Python and asynchronous programming

• A high degree of comfort digging into systems failures within deep technology stacks using any tool necessary

Even better

• Prior experience working with multi-modal models

Benefits:

• Medical, dental, and vision benefits

• Take what you need vacation policy

• Daily lunches, dinners and snacks in the office to keep you at your best

Compensation

$300K – $415K + Offers Equity