Senior Ruby on Rails Engineer | Full-Stack Backend Leader

Fearless; Baltimore (MD); On-site; USD 140,000 - 180,000; Full time

Job summary

Fearless seeks a Senior Ruby on Rails Engineer to design, build, and maintain full-stack features in a production Rails application. You will work with product and design to translate business needs into scalable, secure solutions with a focus on accessibility and testing.

You will mentor peers, ensure high code quality, and collaborate across development, reliability, testing, and operations to align technical execution with project goals.

Qualifications

• Senior Rails expertise with strong OO design and production exposure.
• Experience building full-stack Rails apps and APIs with test coverage.
• Commitment to accessibility, secure coding, and proactive risk communication.

Responsibilities

• Design, build, and maintain full-stack features in Rails with robust tests.
• Develop RESTful APIs and background pipelines using GoodJob.
• Create accessible frontend with ES6+ JavaScript, Stimulus, ERB templates.
• Lead code reviews, mentor teammates, and drive engineering excellence.
• Collaborate with product/design to translate requirements into scalable solutions.
• Refactor and maintain a stable Rails app while ensuring production safety.
• Adhere to security standards and federal/state contractor requirements.

Skills

Ruby on Rails

Full-stack development

RESTful APIs

Mentoring teammates

Accessible/ WCAG

Test-driven development

Tools

GoodJob

RSpec

Stimulus

Job description

Fearless seeks a Senior Ruby on Rails Engineer to design, build, and maintain full-stack features in a production Rails application. You will work with product and design to translate business needs into scalable, secure solutions with a focus on accessibility and testing.

You will mentor peers, ensure high code quality, and collaborate across development, reliability, testing, and operations to align technical execution with project goals.