Technical Architect Interview Questions and Answers for 7 years experience

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Technical Architect Interview Questions & Answers

  1. What is your experience with different architectural patterns (e.g., microservices, event-driven, layered)?

    • Answer: I have extensive experience designing and implementing systems using microservices, event-driven, and layered architectures. In my previous role, I led the migration of a monolithic application to a microservices architecture, improving scalability and maintainability. I'm familiar with the trade-offs of each pattern and can select the appropriate architecture based on project requirements, considering factors like scalability, maintainability, and cost. I have practical experience with message queues (like Kafka or RabbitMQ) for event-driven architectures and understand the complexities of data consistency and transaction management in distributed systems.

  2. Describe your experience with cloud platforms (e.g., AWS, Azure, GCP).

    • Answer: I have significant experience with AWS, specifically utilizing services like EC2, S3, RDS, Lambda, and API Gateway. I've designed and deployed highly available and scalable applications on AWS, leveraging its managed services to reduce operational overhead. I'm familiar with IAM for security management and have experience with infrastructure as code (IaC) using tools like Terraform or CloudFormation. I also have some familiarity with Azure and GCP, having evaluated them for past projects.

  3. How do you approach designing a highly available and scalable system?

    • Answer: My approach to designing a highly available and scalable system involves several key steps: First, I thoroughly understand the system's requirements and anticipated load. Then, I select appropriate architectural patterns (like microservices or a distributed database) to handle scalability. I incorporate redundancy at all levels, including multiple availability zones, load balancing, and failover mechanisms. I utilize monitoring and logging tools to proactively identify and address potential issues. Finally, I implement robust testing strategies to validate the system's resilience under stress.

  4. Explain your experience with databases (e.g., relational, NoSQL).

    • Answer: I have experience with both relational databases (like PostgreSQL and MySQL) and NoSQL databases (like MongoDB and Cassandra). I understand the strengths and weaknesses of each type and can choose the appropriate database based on the application's needs. For example, I've used relational databases for applications requiring ACID properties and complex joins, while I've used NoSQL databases for applications requiring high scalability and flexibility in data modeling.

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