Senior Ruby on Rails Developer

7 days ago


Bucharest, Bucureşti, Romania LXT Full time €60,000 - €80,000 per year

We are hiring a
Senior Ruby on Rails Developer
who will play a key role in developing and extending our crowdsourcing platform. You will be responsible for optimizing backend components, implementing best practices, and collaborating closely with a distributed team. You should have strong experience in Ruby on Rails development, test-driven development (TDD), and working with messaging systems like RabbitMQ.

Responsibilities:

  • Develop and enhance our crowdsourcing platform using
    Rails 6.x and 7.x
  • Apply
    test-driven development (TDD)
    best practices to ensure high-quality and maintainable code
  • Optimize, refactor, and develop backend components while researching and implementing best practices
  • Deliver across the full development stack, focusing on backend development while maintaining an understanding of frontend technologies
  • Work with
    RabbitMQ
    and other messaging systems to implement event-driven architecture
  • Collaborate closely with a
    remote team based in Germany and Ukraine

Qualifications:

  • 5+ years
    of software development experience, with at least
    3 years
    focused on Rails
  • Strong experience with
    MySQL or other relational databases
  • Deep understanding of
    RSpec
    , including
    FactoryBot
    and TDD methodologies
  • Hands-on experience with
    RabbitMQ
    and event-driven architecture
  • Proficiency in
    Unix/Linux environments
  • Familiarity with
    Agile methodologies (Scrum, Kanban)
  • Experience working in
    startup environments
    and scaling applications
  • Hands-on experience with
    frontend development
    is a plus
  • Knowledge of
    HAProxy, Monit, and infrastructure monitoring tools
  • Experience with
    Docker
    and containerized deployments
  • Ability to create and maintain
    AWS Lambda functions
  • Familiarity with
    AWS Rekognition
    or other AWS AI/ML services
  • Strong problem-solving mindset and ability to work independently
  • Team-oriented, collaborative, and excellent communication skills
  • Passion for clean, maintainable code and following best practices
  • Excellent English communication skills, both written and verbal
  • Technical Stack
  • Backend:
    Ruby, Rails (6.x & 7.x)
  • Frontend:
    JavaScript, Bootstrap
  • Databases:
    MySQL, MongoDB
  • Infrastructure & DevOps:
    AWS (including serverless), RabbitMQ, Capistrano, HAProxy, Monit, Docker
  • Messaging & Queues:
    RabbitMQ, experience with message-based architecture
  • Testing:
    RSpec, Capybara (FactoryBot & TDD tools)

Additional information:

LXT is an equal opportunity employer and ensures that no applicant is subject to less favorable treatment on the grounds of gender, gender identity, marital status, race, color, nationality, ethnicity, age, sexual orientation, socio-economic, responsibilities for dependents, or physical or mental disability. Any hiring decision is made on the basis of skills, qualifications, and experiences.

We measure our success as a business, not only by delivering great products and services and continually increasing our assets under administration and market share but also by how we positively impact people, society, and the planet.



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