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Craft Ventures Portfolio Job Board

Principal Ruby on Rails Engineer

Arist

Arist

Software Engineering
United States
Posted on Oct 9, 2025
Arist is an enterprise platform transforming how the world’s largest organizations deliver training and enablement — all through conversational, AI-powered learning experiences. Fortune 500 companies like HP, Pfizer, Novartis, and Intuit use Arist to drive measurable behavior change in minutes, not months.

We’re looking for a Principal Ruby on Rails Engineer to help us scale our core product and pioneer new AI-powered experiences that redefine enterprise learning. You’ll work side-by-side with our founders and product leaders, shaping architecture and guiding development across a platform used by hundreds of thousands of learners globally.

What you’ll own

  • Own and evolve our core backend: Drive development of core application features and architecture in Ruby on Rails.
  • Architect for scale and speed: Design systems that power real-time learning delivery across SMS, Teams, and beyond.
  • Collaborate deeply: Partner with product managers, designers, and other engineers to ship features that delight users and align with business impact.
  • Shape new product areas: Contribute to new AI-powered experiences and tools that extend Arist’s impact across the enterprise.
  • Mentor and elevate: Set technical direction, establish best practices, and raise the bar for code quality, scalability, and performance.

Stack

Ruby on Rails

  • Vue.js
  • AWS
  • PostgreSQL
  • Sidekiq
  • Redis
  • GraphQL

Looking For Someone With

  • 8+ years of professional experience in Ruby on Rails (including production-scale systems).
  • Architectural depth: Strong ability to design backend systems that balance flexibility, performance, and maintainability.
  • Product instinct: You think like a product owner — translating goals into elegant, well-scoped solutions.
  • Entrepreneurial mindset: You’ve built or owned products end-to-end, and you thrive in environments with autonomy and accountability.
  • Strong communicator: Able to distill complexity for technical and non-technical audiences.
  • Bias for action: You move fast, iterate confidently, and take pride in shipping meaningful work.
  • Curiosity for AI: Excited about leveraging AI to transform how people learn and work.

Why Arist

  • Meaningful ownership in a fast-growing, cashflow positive venture-backed company redefining enterprise learning.
  • Work directly with founders and a small, elite team shaping the future of AI-powered enablement.
  • 100% remote, flexible hours, and a culture built on trust, autonomy, and high standards.

Let’s build the future of learning together.