- A Senior Backend Engineer has a deep understanding of preferred technologies like Node.js and its modules, with extensive experience in asynchronous programming, event -driven architecture, and handling complex I/O operations.
- They demonstrate high proficiency in designing and optimizing databases (both SQL and NoSQL), including advanced query writing.
- Their expertise includes architecting scalable, fault - tolerant systems, with deep knowledge of performance tuning and code optimization.
- Senior Backend Engineers are experienced in system architecture, including designing and implementing microservices and complex API architectures.
- They contribute to code reviews, providing feedback where required, and mentor junior developers to help them understand complex concepts and improve coding practices.
- A Backend Engineer is familiar with basic architectural patterns, such as REST APIs, and has some understanding of complex architectures, though typically requires assistance for implementation.
- They may lack experience in high-level system design decision-making.
- They possess a solid foundation in Node.js, with knowledge of common modules and libraries, along with intermediate database knowledge.
- This includes the ability to write basic queries, perform CRUD operations, and create basic schemas.
- They are capable of supporting testing frameworks like Jest and can write unit tests and integration tests with solid coverage