Staff Software Engineer, Core AI Platforms
Core
Designing and maintaining foundational AI agent systems and core platform services to power payroll and HR products for small business owners.
Role type
Staff Software Engineer (Core AI Platforms)
Builds
Production AI agent systems (multi-agent orchestration, tool registries, human-in-the-loop) and core backend services (communications, reporting, payments, compliance).
Domain
Fintech / HR Tech / AI
Deliverable
production ML models | product features | infrastructure
Required skills
Full-stack software engineering, AI/LLM agent orchestration, system design, Ruby on Rails, JavaScript/React, evaluation framework design, observability, mentoring.
Preferred skills
Experience scaling large Ruby/Rails and JS/React applications, fluency with AI coding assistants, curiosity with emerging AI frameworks.
Technologies
Ruby on Rails, JavaScript, React, LLMs, AI coding assistants.
Responsibilities
Design and maintain evaluation frameworks for AI agents; build and test core platform services; mentor engineers on complex technical problems; scale large-scale web applications; collaborate with cross-functional teams to prototype and launch solutions; build trusted engineering platforms.
Seniority
Staff, hands-on IC with mentorship
