[Hiring] Ruby Developer @Poland and Eastern Europe

Role Description

We are looking for Ruby Developers to join projects delivered for our international clients operating across complex digital and enterprise environments. This role is a great opportunity to work on mature Ruby on Rails applications that continue to evolve in active production environments.

• Develop, maintain, and improve Ruby on Rails applications supporting business-critical processes and workflows.
• Work primarily within monolithic application architectures while contributing to modernization and architectural improvements.
• Implement backend features, integrations, and business logic using Ruby and Ruby on Rails.
• Collaborate with frontend developers to support integrated user experiences and maintain legacy frontend components where required.
• Participate in the implementation of Event-Driven Design and Domain-Driven Design (DDD) principles within evolving application architectures.
• Write and maintain comprehensive unit and integration tests using RSpec and/or Minitest.
• Work closely with Product Owners, QA engineers, and client stakeholders to refine and implement business requirements.
• Manage deployments and support delivery processes across multiple environments, including legacy on-premises infrastructure and containerized platforms.
• Contribute to CI/CD processes, automation, and operational improvements using modern DevOps practices and tooling.
• Support troubleshooting, debugging, performance optimization, and production stability activities.
• Ensure high code quality through code reviews, testing, refactoring, and continuous improvement initiatives.

Qualifications

• Commercial experience as a Ruby Developer in modern web application environments.
• Strong hands-on experience with Ruby on Rails and the Ruby ecosystem.
• Good understanding of monolithic application architectures and backend application design.
• Experience with Ruby ecosystem tools such as Bundler and RubyGems.
• Strong experience writing unit and integration tests using RSpec and/or Minitest.
• Practical experience with MySQL / MariaDB and Redis.
• Experience working with frontend integration technologies such as NodeJS, Yarn, and Webpacker.
• Basic familiarity with AngularJS or maintaining legacy frontend components.
• Experience with deployment and infrastructure automation tools such as Capistrano, Ansible, and Docker.
• Good understanding of CI/CD workflows and DevOps practices.
• Experience with Git-based development workflows, including GitHub or Azure Repos.
• Practical experience working with Azure DevOps Pipelines or similar CI/CD platforms.
• Familiarity with Linux-based environments, preferably RedHat.
• Basic understanding of container orchestration concepts, including Kubernetes / AKS environments.
• Experience working with secure enterprise access environments and tooling.
• Aware of security best practices and experience using security scanning tools such as Snyk or equivalent.
• Experience managing dependencies and private packages repositories.
• Understanding of SPA concepts and modern frontend development practices.
• Good understanding of Event-Driven architectures and Domain-Driven Design principles.
• Ability to troubleshoot and navigate across the full application stack, from database to frontend layer.
• Practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery.
• Work from the European Union region and a work permit are required.

Requirements

• Experience modernizing legacy Ruby on Rails applications.
• Experience working with enterprise-scale monolithic systems.
• Knowledge of containerized and cloud-adjacent deployment environments.
• Experience contributing to architectural modernization initiatives.
• Experience applying GenAI in a more structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations embedded into daily work.
• Interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches.

Recruitment Process

• CV review
• HR call
• Interview
• Client Interview
• Decision