Senior Backend Developer (Engine Team)

We are looking for an exceptional Senior Backend Developer (Engine Team) to join our growing team. You will be responsible to:

• Build/extend/troubleshoot/fix complex heterogeneous Ruby (Rails but not only) applications, as well as small self-contained microservices.

• Improve execution engine of custom third-party code (Ruby DSL, isolation, performance, new features).

• Write well-designed, testable, efficient code in Ruby (and some GOlang).

• Integration of data storage solutions Postgres/Redis/S3/DynamoDB/Kafka/Click House etc.

• Contribute to all phases of the development lifecycle.

• Provide code reviews to your teammates.

• Evaluate and propose improvements to existing system.

• Identify bottlenecks and bugs, and devise solutions to these problems.

• Help maintain code quality, organization and automatization.

• Strong experience developing, shipping and maintaining Ruby and Rails applications (5+ years).

• Vast knowledge of Ruby, experience with intensive backend applications, not only MVC.

• Excellent debugging, analytical, problem-solving, and social skills.

• Knowledge of basic data structures and algorithms and how they are used is a must.

• Good understanding of all building blocks of large web applications: databases, load balancers, application servers, message brokers, caching, monitoring, etc.

• Good understanding of network protocols and stacks.

• Good understanding of DB technologies: classic databases and modern no-SQL.

• BS/MS degree in Computer Science, Engineering or a related subject.

• Experience of developing DSLs in Ruby.

• Background in C/C++/Linux or other system programming.

• Deep knowledge of physical DB design.

• Experience of working with Docker and other isolation technologies.

• Experience of working with public cloud infrastructure providers (AWS/Azure/Google Cloud).

• Experience in related fields (DevOps, ML, DBA, Enterprise applications, etc.)

• Experience in building/deploying data processing pipelines is a plus.

• Experience of working with third-party REST APIs at scale (request throttling, batch processing etc.).

• Spoken English (at the level enough to pass technical interview and later work with colleagues).