Senior Ruby on Rails Developer

LXT is an emerging leader in AI training data to power intelligent technology for global organizations. In partnership with an international network of contributors, LXT collects and annotates data across multiple modalities with the speed, scale, and agility required by the enterprise. Our global expertise spans over 145 countries and more than 1,000 language locales. Founded in 2010, LXT is headquartered in Toronto, Canada with a presence in the United States, UK, Egypt, India, Turkey, and Australia. The company serves customers in North America, Europe, Asia Pacific, and the Middle East. 

We are hiring aSenior Ruby on Rails Developerwho 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 usingRails 6.x and 7.x
• Applytest-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 withRabbitMQand other messaging systems to implement event-driven architecture
• Collaborate closely with aremote team based in Germany and Ukraine

Qualifications:

• 5+ yearsof software development experience, with at least3 yearsfocused on Rails
• Strong experience withMySQL or other relational databases
• Deep understanding ofRSpec, includingFactoryBotand TDD methodologies
• Hands-on experience withRabbitMQand event-driven architecture
• Proficiency inUnix/Linux environments
• Familiarity withAgile methodologies (Scrum, Kanban)
• Experience working instartup environmentsand scaling applications
• Hands-on experience withfrontend developmentis a plus
• Knowledge ofHAProxy, Monit, and infrastructure monitoring tools
• Experience withDockerand containerized deployments
• Ability to create and maintainAWS Lambda functions
• Familiarity withAWS Rekognitionor 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)
  • Version Control:
    GitHub
    

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.