Participate in the full development cycle, from backlog refinement and testing to launching new features and implementing technical improvements.
Design, develop, and maintain scalable application architecture.
Review, maintain, and refactor existing code to ensure high performance, security, and maintainability.
Investigate and implement new technologies to enhance platform efficiency and stability.
Conduct code reviews and provide constructive feedback to team members.

4+ years of commercial experience
Expert-level proficiency in Ruby with a deep understanding of its ecosystem
Strong expertise in designing, optimizing, and maintaining relational databases (e.g., PostgreSQL)
Deep knowledge of SQL, algorithms, and data structures
Solid understanding of CS fundamentals, including OOP principles and best practices
Strong debugging, analytical, and problem-solving skills
English level: Intermediate and higher (ability to communicate effectively in a team environment)
Understanding of Ruby on Rails key concepts and best practices (nice to have)
Hands-on experience with event streaming systems and message brokers (Kafka, RabbitMQ, etc.) (nice to have)
Experience in database and application performance tuning (query optimization, indexing strategies, caching techniques) (nice to have)
Strong test-driven development (TDD) skills and experience writing specs with RSpec (nice to have)
Knowledge of scalable system architecture design (nice to have).

Full-time remote work opportunities and flexible working hours
Private insurance
Additional 1 Day Off per calendar year
Sports program compensation
Comprehensive Mental Health Programme
Free online English lessons with a native speaker
Generous referral program
Training, internal workshops, and participation in international professional conferences and corporate events.

Senior Ruby on Rails Developer

Key skills