Sr. AI Engineer

  • Greylock Partners
  • San Francisco, California
  • 04/02/2026
Full time Information Technology Telecommunications Software Engineer

Job Description

One of our early-stage investments is looking to bring on a Senior AI Engineer to join the founding technical team.

We're looking for someone who has built agentic applications in production at a company with a strong engineering bar. This isn't a "tinkering only" role. The ideal candidate is a strong backend software engineer who has moved into applied AI and enjoys building real products with LLMs.

What you'll do
  • Build and ship agentic applications and AI-powered workflows used directly by customers
  • Design and productionize RAG pipelines and other modern LLM systems
  • Own backend services that support AI features, including async processing, integrations, and data access within customer environments
  • Collaborate closely with product and infrastructure engineers to turn ambiguous problems into reliable systems
What we're looking for
  • Typically, 5+ years of cumulative software engineering experience (or exceptionally strong with 3+ years)
  • 1+ years building agentic applications in production (preferred)
  • Alternatively, 1+ years building production RAG pipelines or other modern applied AI systems
  • Strong backend engineering foundation: designing services, data models, and async processing systems
  • Experience in environments with a high engineering bar for production AI systems
Not a fit if your background is primarily
  • Classic ML research or modeling work
  • ML infrastructure / platform roles
  • Pre-training focused experience
Nice to have
  • Enterprise integrations and working in customer environments
  • Workflow orchestration / job processing frameworks
  • Building internal tools, developer platforms, or UI-driven software
What makes this compelling
  • Early, high-impact role on a small founding team
  • Opportunity to shape core AI architecture and product direction
  • Strong peers, fast iteration, and real customer problems
  • Competitive compensation and meaningful equity
Team Size

Work Culture

5 days/week in SF Office

About Us

Greylock is an early-stage investor in hundreds of remarkable companies including Airbnb, LinkedIn, Dropbox, Workday, Cloudera, Facebook, Instagram, Roblox, Coinbase, Palo Alto Networks, among others. More can be found about us here:

How We Work

We are full-time, salaried employees of Greylock and provide free candidate referrals/introductions to our active investments. We will contact anyone who looks like a potential match requesting to schedule a call with you immediately.

Due to the selective nature of this service and the volume of applicants we typically receive from our job postings, a follow-up email will not be sent until a match is identified with one of our investments.

Please note: We are not recruiting for any roles within Greylock at this time. This job posting is for direct employment with a startup in our portfolio.