Demo

Ruby Engineer

Motion Recruitment
Chicago, IL Contractor
POSTED ON 3/26/2026
AVAILABLE BEFORE 4/24/2026
A well-established technology organization is seeking a Ruby-focused contractor to support a time-sensitive modernization initiative. This role centers on upgrading a legacy USPS shipping integration to the latest REST-based USPS API v4. The engagement is fully remote, contract-based, and designed for an engineer who can work independently and deliver within a clearly defined scope.

This project is ideal for a seasoned engineer who enjoys short-term, high-impact contract work without long-term overhead. The scope is well-documented, the expectations are clear, and collaboration is lightweight. You’ll take ownership of a critical integration upgrade while working with a team that values clean execution and minimal bureaucracy.

Required Skills & Experience

  • Strong experience with Ruby and Ruby on Rails
  • Hands-on experience working with RESTful APIs
  • Experience writing or maintaining Ruby gems
  • Comfort working in an existing, non-greenfield codebase
  • Ability to work independently with minimal supervision
  • Prior contract or consulting experience

Desired Skills & Experience

  • Experience with shipping or logistics APIs (USPS, FedEx, UPS, etc.)
  • Familiarity with OAuth 2.0 authentication flows
  • JavaScript experience (any framework or vanilla JS)
  • Exposure to Angular-based front-end applications

What You Will Be Doing

Tech Breakdown

  • 70% Ruby / Ruby Gem development
  • 20% API integration & data mapping
  • 10% JavaScript / front-end support

Daily Responsibilities

  • 85% Hands-on coding and implementation
  • 10% Team collaboration (standups, reviews)
  • 5% Documentation and handoff

The Offer

  • Fully remote work environment

Applicants must be currently authorized to work in the US on a full-time basis now and in the future.

Posted By: Esteban Medina

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