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Ruby Developer - Onsite

MSYS Inc.Washington, DC🇺🇸United StatesPosted Sep 28, 2026

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Washington, DC, United States
Posted
Yesterday
DockerMySQLRubySpringSpring BootEncryptionOAuthGitGraphQLHelmJavaKubernetesPostgreSQLRESTRSpecRails

Job Description

Title:Ruby Developer - Onsite
Location:Washington, DC
Length:Long term
Restriction:w2 only
Description:

Job Description

The Ruby Developer will be part of a technical team responsible for designing, developing, and maintaining APIs that enable communication between different software systems. The ideal candidate is a strong Ruby engineer with hands-on development experience and the ability to contribute production-grade code.

Responsibilities

  • Design and develop APIs, including specifications, endpoints, data models, and protocols such as REST and GraphQL.
  • Contribute production-grade code for core services.
  • Partner with the Technical Lead to conduct code reviews and ensure code quality, maintainability, and security.
  • Work closely with the Engineering Crew Lead and API Architect to review solution design and deliver robust, scalable solutions.
  • Ensure seamless integration of APIs with internal systems, external applications, and third-party services.
  • Promote effective use of AI-enabled tools in the API development lifecycle to improve productivity and code quality.
  • Create and maintain clear, comprehensive API documentation for consumers, including usage guidance and best practices.
  • Implement and uphold security best practices, including authentication, authorization, and encryption.
  • Interface with external engineering teams to ensure alignment on technical standards, governance requirements, compliance obligations, and ongoing cATO maintenance.
  • Monitor and optimize API performance, reliability, and scalability.
  • Manage API versioning and support backward compatibility as services evolve.
  • Provide ongoing support, troubleshoot production issues, and implement enhancements based on stakeholder feedback.
  • Participate in Tier 1 and Tier 2 on-call operations.

Qualifications

Skills

  • 6+ years of strong Ruby on Rails experience.
  • Experience with relational databases such as PostgreSQL or MySQL.
  • Experience with the RSpec testing framework.
  • Strong experience designing, building, and maintaining APIs.
  • Ability to lead engineering teams while remaining hands-on with development.

Desirable Skills

  • Familiarity with Docker, Kubernetes, and Helm.
  • Familiarity with application security principles and secure development practices.
  • Familiarity with Git version control.
  • Familiarity with OAuth.
  • Experience with async job processing tools such as Sidekiq.
  • Experience with Spring Boot / Java.

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