Senior Software Engineer - Mercury Command
Core
Building and evolving Command, Mercury's LLM-powered financial assistant that allows users to understand finances and take actions like sending payments and managing invoices in plain language.
Role type
Senior Software Engineer (LLM & Agentic Workflows)
Builds
Command, an LLM-powered financial assistant for banking customers
Domain
Fintech / AI / Large Language Models
Deliverable
production ML models | product features
Required skills
LLM application scaling, agentic system design, multi-step workflow architecture, eval infrastructure design, production reliability engineering, TypeScript, Haskell
Preferred skills
Mentoring engineers, raising technical bar, understanding AI product trustworthiness
Technologies
TypeScript, Haskell, LLMs
Responsibilities
Design and ship new Command skills and agentic workflows, maintain and evolve prompt architecture and policy layers, tune model behavior and streaming patterns, write and expand eval harnesses, partner with product/compliance to define correctness criteria, own reliability from design to post-launch monitoring
Seniority
Senior, hands-on IC with mentorship