Full Stack Engineer (Ruby on Rails)

Tropic is a company focused on AI-powered Procurement Intelligence solutions for businesses. They are seeking a Senior Full Stack Engineer who will be responsible for delivering end-to-end improvements and building features in a modern application using Rails and Hotwire.

Responsibilities:

• As a Senior Engineer, you’ll own meaningful product areas and deliver end-to-end improvements, balancing speed with durability
• Use Rails 8 + Hotwire + Tailwind + View Components to build features in a clean, near-greenfield application
• Design and implement end-to-end functionality: database schema → domain logic → UI → rollout/monitoring
• Build modern, reactive user experiences with Turbo Frames/Streams and Stimulus, leaning into progressive enhancement
• Craft interfaces that are clear and resilient in a workflow-heavy domain (approvals, suppliers, contracts, renewals, auditability)
• Implement AI agents that leverage Tropic's unique dataset to power incredible user experiences
• Partner with Product Managers and Designers to translate real-world procurement/spend workflows into elegant, intuitive solutions
• Own technical decisions in your area: scoping, tradeoffs, sequencing, and pragmatic architecture
• Raise the bar through thoughtful code reviews, pairing, mentoring, and improving team practices
• Drive improvements in performance, reliability, and maintainability (e.g., query tuning, background jobs, caching, refactors that simplify)
• Strengthen quality: tests, instrumentation, and deploy confidence
• Own your work beyond release. Monitor, fix, and enhance your work as it makes first (and second) contact with our customers
• Use AI tools (IDE assistants, chat tools, code-review helpers) to accelerate exploration, refactoring, and first drafts
• Maintain a high bar for correctness: you verify edge cases, failure modes, and security/privacy implications
• Back meaningful changes with tests, evals, or measurable validation
• Keep customer data and sensitive information out of prompts and follow safe internal practices
• Help the team evolve shared AI workflows: 'what it’s great for,' 'what it’s risky for,' and review checklists that keep quality high

Requirements:

• 4+ years of full-stack Ruby on Rails experience shipping production software (senior-level ownership expected)
• Strong fundamentals in web standards: modern JavaScript, HTML, CSS
• Comfort building UX with a 'server-first' mindset, while still writing good JS when it's needed
• Proven ability to take ambiguous problems from concept → implementation → rollout
• A desire to learn and embrace Hotwire and the newest Rails features, or strong existing experience with Hotwire patterns
• Experience working at a SaaS product company
• Experience thriving in a remote-first environment
• Performance and scalability work in Rails (Postgres query optimization, caching strategies, background jobs)
• Experience modernizing UI approaches (e.g., moving away from heavy SPA patterns toward Hotwire/progressive enhancement)
• Interest in (or experience with) applying AI safely in product and/or engineering workflows