Fidelity Investments Senior Software Engineer Interview Questions and Answers

I am a Senior Software Engineer with 8 years of experience in developing scalable and efficient software solutions.

• Experienced in full stack development using technologies like Java, Spring Boot, Angular, and SQL

• Strong background in designing and implementing RESTful APIs

• Proficient in Agile methodologies and working in cross-functional teams

• Passionate about continuous learning and staying updated with the latest techno

Highly confident in Java with 8+ years of experience in developing complex applications

• 8+ years of experience in Java development

• Proficient in Java programming language features and best practices

• Extensive experience in developing complex applications using Java

• Familiar with Java frameworks and libraries such as Spring, Hibernate, and Apache Commons

• Comfortable with multi-threading, performance optimization, and debuggi

Zookeeper is used for managing Kafka cluster and maintaining its metadata.

• Zookeeper stores metadata about Kafka brokers, topics, partitions, and consumer groups.

• It helps in leader election and broker failure detection.

• Kafka clients use Zookeeper to discover the current state of the Kafka cluster.

• Zookeeper also helps in maintaining the offset of messages consumed by a consumer group.

OAuth is an open standard for authorization that allows users to share their private resources stored on one site with another site.

• OAuth allows users to grant access to their private resources on one site to another site without sharing their credentials.

• It is commonly used by social media platforms to allow users to sign in to third-party apps using their social media accounts.

• OAuth 2.0 is the most widely used versio...read more