Ruby On Rails Lead Developer

Role Overview

As a Senior Rails Developer and Code Reviews Lead, you will:

• Architect and implement new features in Ruby on Rails (7+).
• Champion code quality by leading and performing thorough peer reviews.
• Establish and enforce best practices, style guides, and automated tooling.
• Mentor mid- and junior-level engineers and evangelize continuous improvement.

Key Responsibilities

• Feature Development:
  Design, develop, test, and deploy critical enhancements and integrations using Rails, MySQL, Redis, and background jobs (Sidekiq/ActiveJob).
• Code Review Leadership:
  Own our pull-request review process.
  Provide actionable feedback on design, readability, performance, and security.
  Triage and coordinate review queues to maintain high engineering velocity.
• Best-Practice Evangelism:
  Define and maintain style guides (Ruby, MySQL, Hotwire, etc.).
  Keep CI/CD pipelines green; integrate linters, static analyzers, and automated tests.
• Architecture & Design:
  Participate in system-level design discussions and decisions (services, microservices, APIs).
  Identify and refactor technical debt.
  Ensure high performance, scalability, and security of Rails applications.
• Mentorship:
  Pair-program with teammates.
  Run onboarding sessions for new engineers.
  Help define personal development plans and track progress.
• Cross-Functional Collaboration:
  Work closely with Product, QA, DevOps, and UI/UX teams to deliver end-to-end solutions.
  Translate business requirements into technical designs and estimate effort.

Required Qualifications

• 5+ years of professional experience building and shipping Ruby on Rails applications in production.
• Deep understanding of Rails conventions, ActiveRecord, and the Rails request lifecycle, as well as Hybrid Database technologies, specifically MySQL 8+ Hybrid SQL/NoSQL technology.
• Hands-on experience leading code reviews and setting quality standards.
• Proficient with Git workflows (feature branches, rebases, pull-requests).
• Solid background in SQL (MySQL preferred), database indexing, and query optimization.
• Familiarity with front-end technologies (JavaScript/TypeScript, CSS frameworks) and API design (REST/GraphQL).
• Experience working with background job systems (Sidekiq, Delayed Job, etc.) and caching (Redis, Memcached).
• Strong testing mindset: RSpec, Minitest, Capybara, factory_bot, etc.
• Excellent communication skills and a collaborative attitude.

Preferred (Nice-to-Have)

• Experience with SLIM, Tailwind, containerization , and cloud platforms (AWS/GCP/Azure).
• Knowledge of microservices, event-driven architectures, or service meshes.
• Open-source contributions to Ruby/Rails ecosystem or maintaining popular gems.
• Familiarity with security best practices (OWASP, Rails security patches).

Experience with performance profiling tools (New Relic, Skylight, rack-mini-profiler).

All candidates must use the link below to complete our Culture Index survey to be considered for this role.

https://surveys.cultureindex.com/s/H65Y13ZG2l/69423