Senior Ruby on Rails Engineer (Remote)

Tech9 Costa Rica
Remote
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AI Summary

Tech9 is seeking a Senior Ruby on Rails Engineer for a rapidly growing SaaS client focused on AI-powered tools. The role involves building and evolving a customer-facing platform, refactoring legacy systems, and contributing to product decisions. Key requirements include strong Ruby on Rails experience (5+ years), a product-minded approach, and excellent English communication skills. This fully remote position offers significant ownership, a collaborative senior engineering team, and competitive compensation for LATAM candidates.

Key Highlights
Build and evolve a customer-facing SaaS platform.
Refactor and modernize legacy components for scalability and maintainability.
Contribute to product discussions and technical decisions with high ownership.
Key Responsibilities
Build, maintain, and improve Ruby on Rails applications serving production customers
Refactor and modernize legacy components of the platform to improve scalability and maintainability
Collaborate closely with a small senior engineering team to ship product improvements quickly
Contribute to product discussions and technical decisions, not just implementation
Maintain high engineering standards around quality, usability, and long-term sustainability
Technical Skills Required
Ruby on Rails
Benefits & Perks
Fully remote work
Competitive compensation for LATAM candidates
Premium pay for exceptional talent
Nice to Have
Experience working in B2B SaaS environments
Familiarity with the Entrepreneurial Operating System (EOS), or strong interest in learning it

Job Description


About Tech9

At Tech9, we are driven by a clear mission—to empower organizations with AI-centered solutions that make them more adaptable, efficient, and future-ready. With proven expertise in product strategy, UX design, cloud architecture, and AI, our teams deliver purpose-built software that meets today’s needs and anticipates tomorrow’s challenges.

Headquartered in Utah, Tech9 experts collaborate across the United States, Latin America, and India. We offer a remote working environment with a collaborative and supportive culture, allowing you to focus on what you do best.

If you're excited by the opportunity to work in a fast-paced, innovative environment where scaling and building the future of software is key, we’d love to hear from you. Join us as we work together to redefine the world of software development.

Senior Ruby on Rails Engineer

Our client is a profitable and rapidly growing SaaS company building a product centered around EOS and AI-powered tools designed to help leadership teams execute more effectively. The organization is intentionally small, product-driven, and focused on hiring exceptional people who thrive in high-ownership environments.

They currently have a small engineering presence in Latin America, with developers in Colombia and Brazil, and are looking to add a senior Ruby on Rails engineer who can help take the platform to the next level.

Role Overview

The Senior Ruby on Rails Engineer will play a key role in building and evolving a customer-facing SaaS platform. This role is ideal for someone who enjoys both building new features and thoughtfully improving legacy systems to make them clean, scalable, and sustainable.

The team operates in a fast-moving product environment with minimal meetings and a strong emphasis on async communication. Engineers are expected to think beyond tickets, contribute to product decisions, and take real ownership of the systems they build.

Key Responsibilities

  • Build, maintain, and improve Ruby on Rails applications serving production customers
  • Refactor and modernize legacy components of the platform to improve scalability and maintainability
  • Collaborate closely with a small senior engineering team to ship product improvements quickly
  • Contribute to product discussions and technical decisions, not just implementation
  • Maintain high engineering standards around quality, usability, and long-term sustainability

Required Experience

  • Strong experience developing and maintaining production applications with Ruby on Rails (typically 5+ years, though strong senior candidates with slightly less may be considered)
  • Experience working with U.S.-based companies or distributed global teams
  • Proven ability to improve or modernize legacy systems
  • Product-minded approach to engineering with strong attention to user outcomes
  • Fluent written and spoken English
  • Comfortable working in fast-paced SaaS environments

Preferred Experience

  • Experience working in B2B SaaS environments
  • Familiarity with the Entrepreneurial Operating System (EOS), or strong interest in learning it

Culture & Environment

The client maintains a deliberately small and highly accountable team. They prioritize hiring engineers who are mission-driven, collaborative, and proactive communicators. Engineers are expected to take ownership of their work and contribute to building a product customers genuinely love.

What This Role Offers

  • Real ownership of product and architectural decisions
  • A small, senior engineering team where work ships quickly and has direct impact
  • A strong async culture with minimal meetings
  • Fully remote work
  • Competitive compensation for LATAM candidates, with premium pay for exceptional talent

Hiring Process

The Hiring Process Is Intentionally Simple And Efficient

  • Coding test
  • Interview(s)
  • Final decision

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