Ruby on Rails Developer

Sur Global

Ruby on Rails Developer responsible for design and implementation of customer-facing features. Collaborating on performance tuning and production readiness in a remote setting.

Posted 7/4/2026contractRemote • 🇲🇽 MexicoJunior💰 $5,000 - $7,000 per monthWebsite

Tech Stack

Tools & technologies

PostgresRubyRuby on Rails

About the role

Key responsibilities & impact

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.
Improve system reliability, performance, and operational safety.
Contribute to long-term code health through refactoring, testing improvements, security practices, and thoughtful code review.

Requirements

What you’ll need

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.
**Preferred Qualifications**
Experience working at high-growth startups.
Experience building products using LLMs or LLM-based agents (LangChain experience is a plus).
Experience training AI models: building and cleaning datasets, setting up training pipelines, and evaluation benchmarks.
Experience building code generation or code editing tools.
A team-player mentality with a track record of influencing and improving development processes.
****Nice to Have: Email and Deliverability Domain**
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

Comp & perks

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

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

RubyRailsPostgreSQLAsynchronous ProcessingAPI AuthenticationAPI AuthorizationRate LimitingCode RefactoringTesting ImprovementsSecurity Practices

Soft Skills

Team Player MentalityInfluencing Development Processes