Senior Ruby Developer
We are looking for a Senior Ruby Developer to join our dynamic and collaborative team.
The client is an American multinational enterprise specializing in software solutions, offering a cloud-based platform that facilitates the seamless automation, integration, and coordination of artificial intelligence (AI) functionalities across a wide range of applications, data environments, and IT systems.
It is a hybrid position with required visits to the office in Wroclaw, Krakow, Gdansk, Warsaw, Katowice, Lodz or Poznan.
Responsibilities
- Develop and maintain scalable, high-performance web applications using Ruby and Rails
- Optimize complex database queries and ensure efficient use of PostgreSQL
- Design and implement clean, maintainable code with strong adherence to TDD/BDD principles using RSpec
- Collaborate with cross-functional teams to define and deliver technical solutions that align with business goals
- Conduct code reviews and mentor junior developers to uphold quality standards
- Address scalability and performance issues, implementing enhancements to improve reliability
- Work closely with product owners to translate requirements into technical implementations
- Debug and troubleshoot production issues, identifying root causes and implementing responsive fixes
- Participate in architectural design and contribute to long-term system improvements
- Oversee deployment processes and ensure application stability in production environments
- Stay updated on emerging technologies and practices to bring innovative solutions to the team
Requirements
- Strong experience with Ruby and the Rails ecosystem (3+ years)
- Proven ability to build scalable web applications
- Deep hands-on expertise in PostgreSQL, including query optimization and direct SQL usage
- Solid experience with RSpec and TDD/BDD testing practices
- Comfortable working independently with minimal supervision
- English level of minimum B2 (Upper-Intermediate) for effective communication
Nice to have
- Experience using Docker for containerization
- Familiarity with Redis for caching or real-time data handling
- Exposure to ClickHouse for analytics or event logging
- Basic frontend experience with JavaScript and frameworks like React, Angular, or Vue.js
- Experience with background job processing tools like Sidekiq or RabbitMQ
- Understanding of CI/CD pipelines and Git-based workflows
- Good communication and collaboration skills
