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Ruby on Rails Developer

1 week, 5 days ago
Mexico, Argentina, Brazil, Peru, Colombia
Contract
Senior
Backend Engineer
Software Development
JavaScript LLM PostgreSQL Redis Ruby Ruby on Rails Tailwind CSS
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Sur Global Services

Sur Global Services

Sur Global Services specializes in facilitating nearshoring solutions, enabling businesses to outsource operations to neighboring countries, thereby enhancing their workforce efficiency and supporting growth in the evolving landscape of remote work.

IT Services
View All Jobs 16

Description

  • Design, build, and maintain features in a modern Rails codebase.
  • Own background and asynchronous workflows, including retries, idempotency, throughput, and observability.
  • Model, query, and optimize data storage in PostgreSQL.
  • Diagnose and resolve production issues in collaboration with product and support teams.
  • Improve system reliability, performance, and operational safety.
  • Contribute to long-term code health through refactoring, stronger testing, security practices, and code review.
  • Work across the full lifecycle of features, including implementation, testing, performance tuning, and production readiness.

Requirements

  • C1 English proficiency or equivalent.
  • Senior-level, hands-on experience building and operating production Ruby on Rails applications.
  • Strong background in background job systems and asynchronous processing with real-world operational experience.
  • Experience designing and querying relational data models in PostgreSQL, with attention to indexing and performance.
  • Experience building external-facing APIs with authentication, authorization, and rate limiting.
  • Strong testing discipline and experience diagnosing flaky or non-deterministic tests.
  • A security-minded approach to application design and production operations.
  • Experience working at high-growth startups (preferred).
  • Experience building products using LLMs or LLM-based agents; LangChain experience is a plus.
  • Experience training AI models, including building and cleaning datasets, setting up training pipelines, and evaluation benchmarks.
  • Experience building code generation or code editing tools.
  • Team-player mentality with a track record of influencing and improving development processes.
  • Experience with the Xero or QuickBooks APIs.
  • General bookkeeping or accounting domain knowledge.
  • Comfort using AI-assisted development tools responsibly while maintaining strong engineering judgment, code quality, and test coverage.

Benefits

  • Compensation of $5,000–$7,000 USD per month, based on experience.
  • Unlimited PTO.
  • U.S. or local holidays observed.
  • Fully remote contractor engagement.

Interested in this position?

Apply directly on the company website

Apply Now

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