Senior Full Stack Ruby on Rails Developer (вакансія неактивна)

Workload: Full-time
Format: Remote, for candidates based within ±2 hours of Berlin, Germany time zone.

Hiring stages

• Recruiter interview
• Technical interview
• Client CTO interview
• Test assignment
• Final interview

We are looking for a Senior Full Stack Ruby on Rails Developer who enjoys building both frontend and backend features in a complex Ruby on Rails product.

This role is a strong fit for someone who has solid experience with Ruby on Rails, understands modern frontend development, and is comfortable working across the full product feature lifecycle — from discussing a proposal to implementation, testing, code review, and production release.

You should care about writing clean, maintainable, secure, and performant code, and be comfortable working in a remote, highly collaborative engineering environment.

This is not a narrowly focused backend-only or frontend-only role. The position involves working on both frontend and backend parts of a mature product, solving complex technical problems, improving product quality, and contributing to long-term maintainability.

About the project

You will join a mature, long-term open-source project with an established codebase and real users worldwide. The product is related to project management and collaboration, with a strong focus on transparency, maintainability, usability, security, and continuous product improvement.

The engineering team includes 30+ experienced developers working remotely and collaboratively on a product with high visibility in the open-source community.

What you will work on

• Build and improve frontend and backend features within a Ruby on Rails application
• Develop secure, well-tested, and performant product improvements
• Work on complex technical problems from planning to implementation
• Contribute to code quality, maintainability, and internal engineering standards
• Participate in code reviews and help maintain best practices across the codebase
• Fix prioritized bugs and improve existing product functionality
• Identify technical debt and propose practical improvements
• Collaborate with other senior developers in a remote, agile, and iterative development process
• Communicate clearly on progress, risks, blockers, and technical decisions
• Contribute to an open-source product with a public codebase and active users

We are looking for someone who has

• 7+ years of experience in software development

• Upper-Intermediate English or higher for day-to-day communication

• Strong hands-on experience with Ruby on Rails
• Solid experience building both frontend and backend parts of web applications
• Good understanding of core web and browser concepts
• Strong knowledge of HTML, CSS, and JavaScript
• Experience with Hotwire (Stimulus, Turbo), Angular, React, or another modern frontend framework
• Understanding of how to build scalable, maintainable, and performant code
• Experience owning features or projects from concept to production
• Ability to work independently and make thoughtful technical decisions
• Experience working in agile and iterative development environments
• Strong communication skills for remote and asynchronous collaboration
• Interest in open-source software development

Nice to have

• Experience working on mature product codebases
• Experience improving product quality, performance, security, or technical debt
• Experience working with public repositories or transparent development processes
• Experience in long-term product development