Senior Ruby on Rails Developer (AI-Augmented Engineering)

Posted July 19, 2026

About this opportunity

Opportunity Overview

This is a full-time contract position for a Senior Ruby on Rails Developer with Proxify, a remote-first company that connects top developers with opportunities. The role involves leading the development and scaling of highly responsive web applications, optimizing system architectures, and managing complex domain models. Proxify has a network of 5000+ talented developers and has worked with 1200+ happy clients. The ideal candidate will have 5+ years of production experience writing object-oriented Ruby and scaling robust Rails applications. They will also have a strong command over architectural patterns, domain-driven design, and API security protocols. The company values engineers who use AI to accelerate boilerplate writing, refactoring, and test generation. Proxify is looking for a developer who is located in the CET timezone (+/- 3 hours) and has a history of interacting with or contributing directly to the open-source community.

Responsibilities

Design and maintain modular, testable, and highly performant backend architectures that support complex business domains
Pioneer the adoption of AI-assisted coding practices within the team
Identify and eliminate N+1 queries, tune database indexes, and optimize memory consumption to ensure low-latency application responses
Conduct meaningful code reviews that elevate the team’s engineering bar
Bring public open-source best practices into private repositories, keeping internal tools modern, secure, and maintainable

Benefits

On-time monthly payments with flexible withdrawal options
Predictable project hours with consistent 8-hour working days
Up to 24 flex days off per year without losing pay
Career-accelerating positions at cutting-edge companies
Hand-picked opportunities with personally matched positions
One seamless process for multiple opportunities
Same pay every month with positions landed through Proxify

Requirements & Qualifications

5+ years of production experience writing object-oriented Ruby and scaling robust Rails applications
Strong command over architectural patterns, domain-driven design, data modeling, concurrency, caching strategies, and API security protocols
Proven ability to integrate AI development tools into daily engineering workflow
History of interacting with or contributing directly to the open-source community
Hands-on experience optimizing PostgreSQL databases, managing background processing via Sidekiq, and deploying containers with Docker into cloud native environments

How to Apply

Review the job description and requirements to ensure you are a good fit for the position.
Prepare your application materials, including your resume and any relevant work samples.
Click the Apply button below to submit your application.

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