Senior Backend Engineer (on-site/hybrid Berlin, Ruby on Rails)

Key job characteristics:

• On-site/hybrid in Berlin
• Start ASAP
• Open for freelancers as well

Deat Applicant, for one of our client - leading company designing AI automation solutions for business, we are looking for a Senior Backend Engineer (Ruby on Rails). You will play a key role in designing and implementing new features, optimizing existing systems, and ensuring the robustness and reliability of client's backend infrastructure.

Responsibilities:

• Design, develop, and maintain high-quality backend services and APIs using Ruby on Rails.
• Optimize database performance and ensure data integrity.
• Collaborate with frontend developers, product managers, and other stakeholders to deliver high-impact features.
• Conduct code reviews, mentor junior engineers, and foster best practices in software development.
• Troubleshoot and resolve performance issues, bugs, and other technical challenges.

Requirements:

• 3+ years of experience in application development
• Experience with Ruby on Rails (6)
• Experience with an modern UI framework (Vue2, 3 or React)
• Strong SQL skills (MySQL, PostgreSQL, PSQL, Oracle, MSSQL)
• Knowledge of continuous deployment and integration practices
• Experience in identifying and resolving potential performance bottlenecks
• Good understanding of modern API design practices and standards
• Proficient in writing automated tests
• Fluency in English, both written and spoken

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