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Ruby on Rails Engineer

Wroclaw, Krakow, Gdansk, Warsaw, Poznan, Poland

We are looking for a skilled and passionate Ruby on Rails Engineer to join our team. In this role, you will be responsible for designing, developing, and maintaining scalable and robust web applications. A strong understanding of the Rails ecosystem, coupled with a commitment to writing clean, well-tested code, is essential for this role.

Essential functions

  • Develop, maintain, and scale applications using Ruby on Rails with strong expertise in MVC, Active Record, and Rails Engines.

  • Design and optimize relational databases (PostgreSQL/MySQL), ensuring efficient queries, migrations, and performance tuning; leverage Redis for caching.

  • Build and integrate APIs (REST, GraphQL) while collaborating with modern front-end frameworks such as React or Vue.js.

  • Apply TDD principles with RSpec/Minitest and ensure CI/CD best practices for reliable deployments.

  • Contribute to system architecture, driving secure and scalable solutions across services and microservices.

  • Write clean, maintainable code, participate in reviews, and troubleshoot issues across the stack in Linux/Unix environments.

Qualifications

  • Proven experience as a Ruby on Rails engineer or similar role.

  • Strong proficiency in Ruby with deep understanding of Rails MVC, Active Record, and Rails Engines.

  • Hands-on experience building and integrating RESTful APIs; familiarity with GraphQL is a plus.

  • Solid expertise in relational databases (PostgreSQL/MySQL), SQL optimization, and Redis for caching.

  • Knowledge of front-end technologies (HTML, CSS, JavaScript) and collaboration with frameworks like React or Vue.js.

  • Commitment to TDD with experience in RSpec/Minitest and CI/CD pipelines.

  • Strong problem-solving skills and ability to work effectively in cross-functional teams.

  • Familiarity with cloud platforms like AWS

We offer

  • Opportunity to work on bleeding-edge projects
  • Work with a highly motivated and dedicated team
  • Competitive salary
  • Flexible schedule
  • Benefits package - medical insurance, sports
  • Corporate social events
  • Professional development opportunities
  • Well-equipped office

About us

Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.

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    Grid Dynamics is an equal opportunity employer. We are committed to creating an inclusive environment for all employees during their employment and for all candidates during the application process.

    All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on, age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. All employment is decided on the basis of qualifications, merit, and business need.