Senior Ruby on Rails Developer (AI-Augmented Engineering)

Job Overview

proxify. io The Role: We are seeking a Senior Ruby on Rails Developer who treats software engineering as an art form and a discipline. In this role, you will lead the development and scaling of highly responsive, business-critical web applications.

You won't just build features; you will optimize system architectures, manage complex domain models, and champion engineering practices that keep codebases sustainable over long lifecycles.

Job Description

Strong command over architectural patterns, domain-driven design, data modeling, concurrency, caching strategies, and API security protocols. You value automated testing (RSpec/Minitest) as a critical design tool.

Proven ability to integrate AI development tools (such as GitHub Copilot, Cursor, or specialized LLM agents) into your daily engineering workflow.

We value engineers who use AI to accelerate boilerplate writing, refactoring, and test generation, while maintaining the critical eye needed to debug and validate the outputs.

A history of interacting with or contributing directly to the open-source community-whether that means maintaining custom gems, submitting PRs to public repositories, or actively contributing to the Rails ecosystem.

Key Responsibilities

• In this role, you will lead the development and scaling of highly responsive, business-critical web applications.
• You won't just build features; you will optimize system architectures, manage complex domain models, and champion engineering practices that keep codebases sustainable over long lifecycles.
• We look for developers who understand the core principles of software craftsmanship and can leverage modern technologies-like AI development workflows-to compress delivery timelines without compromising code quality.
• If you are an active contributor to the broader tech community and are obsessed with writing clean, expressive Ruby, you will thrive here.
• Responsibilities: Design and maintain modular, testable, and highly performant backend architectures that support complex business domains.

Required Skills and Qualifications

• What we are looking for: 5+ years of production experience writing object-oriented Ruby and scaling robust Rails applications.
• Hands-on experience optimizing PostgreSQL databases, managing background processing via Sidekiq, and deploying containers with Docker into cloud native environments (AWS/GCP/Heroku).

Work Location and Schedule

This role is listed as Remote USA with location information shown as Remote USA. The employment type is Full Time.

About the Company

Proxify AB is the organization connected with this listing. USA Jobs Today displays this opportunity for job discovery only, so applicants should verify company details, application instructions, and eligibility on the official employer website.