Demo

Sr. Machine Learning Engineer (LLM)

Greylock Partners
San Francisco, CA Full Time
POSTED ON 4/1/2026
AVAILABLE BEFORE 3/24/2027

Summary:


Series A investment looking for a Sr. MLE with AI/ML expertise to build cutting-edge AI agent systems for financial compliance. You'll work at the intersection of software engineering and applied AI, turning the latest advancements in language models and agent frameworks into production-grade solutions that deliver real value for financial institutions.


This is a hands-on role where you'll build robust, scalable systems that operate in live customer environments. You'll work directly with state-of-the-art AI technologies while ensuring the reliability and accuracy that regulated industries demand.


Responsibilities:


  • Design and implement agentic workflows, optimize prompt engineering, and develop RAG systems
  • Build systems to measure, test, and improve AI performance
  • Turn the latest advancements in applied AI into scalable, reliable software that operates seamlessly in enterprise environments
  • Work closely with cross-functional teams to deliver AI features that solve real-world problems at scale
  • Debug and improve AI system performance, from prompt optimization to retrieval system tuning


Qualifications:


  • BSCS & 4 years of related industry experience with 1 year focused on Generative AI/ML applications, leveraging modern LLM's (strong plus for exp with multi-agent workflows)
  • Knowledge of retrieval-augmented generation (RAG) and vector search systems
  • Proficiency in Python and experience with ML frameworks (PyTorch, TensorFlow, or similar)
  • Familiarity with AI evaluation techniques and performance optimization


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: https://greylock.com/


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.

Salary.com Estimation for Sr. Machine Learning Engineer (LLM) in San Francisco, CA
$166,095 to $213,270
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