Haystack
← Back to Jobs
Technology
CI

Senior Ruby on Rails Developer

CitiusTechUnited States🇺🇸United StatesPosted Sep 24, 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
United States
Posted
1 week ago
DockerMicroservicesMySQLRubyAWSScrumAgileArgoCDAzureDatadogGitGitHub ActionsGoogle CloudHIPAAHelmJenkinsKubernetesPostgreSQLRESTRSpecRailsRedisStakeholder Management

Job Description

10+ Years experienced. The ideal candidate will be responsible for developing, enhancing, and maintaining enterprise applications, participating in cloud and platform modernization efforts, implementing security upgrades, and delivering high-quality solutions in an Agile environment.

Key Responsibilities

  • Develop, enhance, and maintain applications using Ruby on Rails.
  • Design, develop, and consume RESTful APIs and microservices.
  • Perform application modernization, including Rails version upgrades and dependency management.
  • Analyze and remediate security vulnerabilities, CVEs, and code quality issues.
  • Collaborate with product owners, architects, QA teams, and business stakeholders.
  • Ability to work in a fast-paced application modernization environment.
  • Capable of contributing from day one with minimal hand-holding
  • Self-starters who can unblock themselves.
  • Strong initiative and ownership mindset.
  • Ability to drive work independently.
  • Contribute not only individually but also to overall team success.
  • Demonstrate technical leadership and provide input to the team when needed.
  • Help drive team outcomes and collaboration.
  • Exhibit leadership qualities in addition to strong technical skills.
  • Participate in code reviews and ensure adherence to engineering best practices.
  • Troubleshoot production issues and provide timely resolutions.
  • Develop automated test cases and support CI/CD implementation.
  • Work on cloud-native and containerized applications using Kubernetes-based platforms.
  • Leverage AI-assisted development tools for code analysis, testing, and productivity improvements.

Required Skills

Primary Skills

  • 10+ years of experience in Ruby on Rails development
  • Strong knowledge of Ruby, Rails 6.x/7.x/8.x
  • Experience in REST APIs development and integration
  • Strong understanding of Object-Oriented Programming (OOP) concepts
  • Experience with PostgreSQL, MySQL, or other relational databases
  • Hands-on experience with Git/GitHub
  • Experience with RSpec, Minitest, or similar testing frameworks
  • Strong debugging and performance tuning skills

Secondary Skills

  • Experience with Docker and Kubernetes
  • Exposure to AWS, Azure, or Google Cloud Platform
  • Experience with CI/CD pipelines (GitHub Actions, Jenkins, Azure DevOps)
  • Knowledge of Redis, Sidekiq, and background job processing
  • Familiarity with Helm and ArgoCD
  • Working knowledge of Agile/Scrum methodologies Preferred Qualifications
  • Experience in healthcare, payer, pharmacy, or provider domains.
  • Experience performing Rails upgrades and application modernization.
  • Knowledge of security remediation and vulnerability management.
  • Experience working in large enterprise environments.
  • Exposure to AI-assisted development platforms such as Claude, GitHub Copilot, or AI Dev Toolkit.

Soft Skills

  • Strong communication and stakeholder management skills.
  • Ability to work independently with minimal supervision.
  • Proactive problem-solving and analytical thinking.
  • Ability to collaborate effectively across distributed teams.
  • Strong ownership and accountability for deliverables.

Nice to Have

  • Experience with Healthcare APIs and integrations.
  • Understanding of HIPAA, PHI, and healthcare compliance requirements.
  • Experience in application migration and modernization initiatives.
  • Exposure to Datadog, observability, and monitoring tools.

Similar jobs