Principal Software Engineer, Backend - Remote across Europe

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Requirements:

• Proven experience as a Backend Developer with 10+ years in professional web application development, specializing in building systems designed to handle high-load and high-concurrency traffic.
• Solid experience with both relational (e.g., MySQL, PostgreSQL) and NoSQL databases, with expertise in writing optimized SQL queries.
• Experience in designing and building RESTful APIs; familiarity with GraphQL is a plus.
• Practical knowledge of design patterns and event driven architectures.
• Expertise in creating systems optimized for concurrency, including caching, load balancing, and horizontal scaling techniques.
• Practical knowledge of Test-Driven Development (TDD) and Domain-Driven Development (DDD), with experience writing unit and integration tests.
• Bachelor's degree in Software Engineering, Computer Science, or equivalent experience.

Responsibilities:

• Design architectural plans, participate in code/design reviews, approve PRs, and implement bug fixes.
• Test and validate features, contribute to automated testing, and ensure high-quality implementations.
• Maintain and improve the development pipeline, mentor peers, share expertise, and drive technical community engagement.
• Follow development lifecycles, workflows, and technical standards while contributing to their improvement.
• Assist in troubleshooting, deployments, and releases, proactively support colleagues, and help with recruitment.
• Engage in self-development, propose improvements, and enhance team/product quality through research and innovation.
• Independently manage and deliver cross-system projects, make system-level decisions, and optimize performance.
• Assist in on-call duties and handle other tasks assigned by management.