Senior AI Engineer at Arist (S20)
$180K - $250K  •  0.50% - 1.00%
Deliver effective learning at scale
US / Remote (US)
Full-time
US citizen/visa only
3+ years
About Arist

Backed by Y Combinator, Acadian Ventures, and Soma Capital, Arist automates the learning and enablement process end-to-end — giving every leader an AI-powered enablement team in their pocket.

Arist’s platform turns what used to take dozens of tools and hundreds of hours into instant, personalized workflows that are 90% cheaper. From onboarding to sales enablement and compliance training, Arist delivers, tracks, and optimizes every interaction directly in the messaging tools employees already use — SMS, WhatsApp, Slack, and Microsoft Teams.

Under the hood, Arist combines:

  • A powerful core infrastructure for content creation, delivery, data integrations, routing, and compliance
  • Agent-driven automation, including Needs Analysis, content creation, referencing, analytics, and team orchestration
  • Seamless messaging-based engagement, making complex enablement and training feel as easy as texting

Trusted by Fortune 500 companies and large organizations — including Microsoft, HP, Novartis, and the Department of Education — Arist helps teams learn, align, and act faster than ever before.

Our long-term vision: to deliver the right knowledge, to the right person, at the right moment — automatically, through the tools they already use.

About the role
Skills: ML, Ruby on Rails

Join the founding AI team at Arist, the leading enablement platform used by teams at Novartis, HP, and Intuit. You'll work closely with cofounders and our founding engineers to bring agentic, production-grade AI workflows (actually used by Enterprises) to life.

What you'll build:

  • Agentic workflows using LLMs for real-world task execution
  • Customization layers for org-specific logic
  • Voice-based and message-based learning agents
  • AI pipelines with evaluation, feedback loops, and monitoring
  • Multi-agent orchestration and AI system infra

We’re looking for someone who:

  • Has 5+ years of ML experience (PyTorch, TensorFlow), and 2+ years with LLMs (Hugging Face, OpenAI, Anthropic)
  • Has built and deployed production AI systems, including RAG and vector search
  • Knows prompt engineering, AI safety, and content filtering best practices
  • Ideally has expert-level Rails experience (3+ years), including REST APIs, PostgreSQL, ActiveRecord, and RSpec
  • Can lead AI integration in full-stack environments and collaborate across teams
  • Understands LangChain, LlamaIndex, or similar frameworks (or can ramp fast)
  • Communicates clearly, moves fast, and thrives in ambiguity

Bonus if you’ve:

  • Built agent-based AI features inside Rails apps
  • Led AI-powered UI/UX design or AI feature launches
  • Shipped real-time inference systems or AI content generation at scale

If you're excited to ship practical, AI-first systems that actually get used by leading global orgs, reach out.

Technology

Arist runs scalable agentic AI services that integrate both private (Bedrock-hosted Claude, Mistral, Llama) and public (OpenAI, Perplexity) LLMs that drive workflows in a core Ruby on Rails/Vue.js product with real-time messaging and event-driven processing on cloud-native AWS infrastructure.

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