Senior Ruby on Rails Engineer; Remote

Basic requirements:

• You’ll be expected to complete a Rails coding challenge as part of the interview process (everyone on the Decile Group team has done well on it).
• You must live and work within a few time zones of Pacific (California) time. We are on Zoom and Slack a lot.
• You must be able to take ownership of a complex feature and drive it to completion with minimal hand-holding.
• You should be actively using AI coding tools (Cursor, Copilot, Claude, etc.) as part of your daily workflow.

Read more here:

• Own complex features end-to-end. Take a problem from spec to production — architecture decisions, implementation, testing, and deployment. You’re accountable for what you ship.
• Build reliable, scalable Rails systems. Work across the full Rails stack: models, services, background jobs, APIs, and the front end. Write code that your teammates can read, extend, and trust.
• Collaborate closely with product and design. Ask the right questions before writing a line of code. Push back when a spec doesn’t make sense. Help the team make better decisions with your technical perspective.
• Use AI to write better code, faster. Leverage AI tools throughout your workflow — code generation, debugging, refactoring, documentation. Model what AI-first engineering looks like at Decile Group.
• Improve the systems around you. Identify technical debt that matters, propose solutions, and follow through. Leave the codebase better than you found it.
• Mentor and elevate teammates. Code review with care. Share knowledge generously. Raise the level of the people around you.

• 5+ years of professional Ruby on Rails experience in production environments
• Deep understanding of Rails conventions, Active Record, background processing (Sidekiq/etc.), and RESTful API design
• Strong instincts for performance, security, and maintainability
• Experience with front-end technologies — you can build clean, functional UI and aren’t afraid of Java Script
• Active use of AI coding tools in your daily workflow
• Excellent written communication — your PR descriptions and technical comments are clear and useful
• Comfort owning work independently and flagging blockers early

• Experience with financial, legal, or compliance-adjacent SaaS products
• Familiarity with fund administration, venture capital, or investment management workflows
• Experience with Hotwire/Turbo/Stimulus or modern Rails front-end patterns

Salary and benefits are commensurate with experience.