Ruby on Rails Developer

4 days ago

Dallas, TX, United States Kaav Inc. Full time
Job Title: Ruby on Rails Developer - Enterprise Web Applications - Texas state client exp must

Location: Dallas, TX (Onsite or Hybrid Preferred)
Engagement Type: C2C
Client Industry: Academic Medical / Public Sector
Visa Status: Open to all visa types
Compliance Requirement: Must comply with State of Texas DIR guidelines
Start Date: ASAP
Duration: Long-Term (Ongoing Contract)
Position Summary:

We are seeking a Senior Ruby on Rails Developer to support enterprise web application development for a major academic medical institution in Dallas, TX. The selected candidate will work closely with internal teams on the modernization, enhancement, and maintenance of critical Ruby on Rails-based systems.

The ideal candidate is an experienced full-stack developer with deep Ruby on Rails expertise, familiarity with Vue.js, and the ability to contribute across the application lifecycle-from design and development to deployment and support.
Key Responsibilities:
  • Design, develop, and maintain Ruby on Rails applications (Rails 5-7) using clean MVC architecture and RESTful principles.
  • Build responsive and accessible user interfaces using HTML5, CSS3 (Sass), JavaScript, and Vue.js.
  • Develop and optimize SQL queries for PostgreSQL and MySQL databases; manage schema migrations.
  • Implement and manage background processing using Sidekiq and caching with Redis.
  • Integrate authentication and authorization systems using tools like Devise, Pundit, CanCan, and Rolify.
  • Collaborate with QA and DevOps to implement CI/CD workflows using GitLab CI, Jenkins, etc.
  • Conduct code reviews, write unit tests using RSpec or Minitest, and maintain test coverage with factory_bot.
  • Interoperate with legacy systems including .NET applications, MS SQL Server, and REDCap.
  • Ensure adherence to accessibility standards, security policies, and compliance with healthcare regulations.
Tech Stack Overview:
  • Languages/Frameworks: Ruby, Ruby on Rails (5-7), ERB, Slim, Liquid
  • Frontend: HTML5, CSS3 (Sass), JavaScript, Vue.js
  • Databases: PostgreSQL, MySQL
  • Background Jobs & Caching: Sidekiq, Redis
  • Authentication/Authorization: Devise, Pundit, CanCan, Rolify, Ransack
  • Testing & CI/CD: RSpec, Minitest, factory_bot, Git, GitLab CI, Jenkins
  • Operating System: Red Hat Enterprise Linux (RHEL)
Required Qualifications:
  • 5+ years of experience developing full-stack web applications with Ruby on Rails.
  • Solid understanding of relational databases and SQL (PostgreSQL and MySQL).
  • Hands-on experience with Vue.js or other modern JavaScript frameworks.
  • Strong experience with Git, CI/CD tools, and testing frameworks (RSpec/Minitest).
  • Excellent problem-solving, debugging, and communication skills.
Preferred Qualifications:
  • Experience working in academic, healthcare, or public sector domains.
  • Familiarity with REDCap, legacy .NET systems, and MS SQL Server.
  • Prior experience in environments governed by regulatory compliance (e.g., HIPAA).

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