Tech Interviews

21 June  2018  :  15:00

Position: Java middleware

Location : Dallas TX

Duration : 6 Months +

12+ years candidate Required.

Skills Required:

·         Cloud experience CI/CD, Jenkins

·         Microservices

·         Rest API p

·         Spring Boot

·         No sql DB – Dynamo (Preferred ), Mongo DB will also work

Hands on lead, who can develop things quickly and lead by example to the rest of the team.

·         Good Design Skills, Hands on exposure to AWS technologies, Serverless, DynamoDB, SQS, Kinesis Good Spring Boot

        Cloud Microservices experience

·         Good Full stack development experience Java , Node, ReactJS.

·         Good experience on Message oriented Middleware RabbitMQ or anything similar Varied understanding of NoSQL.

·         Amazon DynamoDB experience Problem solving skiils

·         Automation oriented thinking Should have worked in an Agile team setup& comfortable with a fast,iterative working culture

21st June -  13:00 

Senior server-side Java developer / hands on Architect   

1.     Experience in Java 8 – usage of Lambdas

2.     Experience in various concurrency library classes

3.     Good understanding of data structures and algorithms (collections ,  understanding performance implications of choosing a structure , knowledge of how they are implemented )

4.     Asynchronous programming

5.     Java features – serialization , exception handling , classes and interfaces , generics , off heap memory , NIO/NIO2

6.     Patterns

7.     Understanding garbage collection

8.     Experience in security will be a big plus (JCE , javax.security , bouncy castle , java key store )

9.     Solve problem and analytical

Interview questions :

The conversation as below :

Sameer called on phone :

This client having two requirements, one is in atlanta and another at mclean, va.

They are looking more on  implementation of  kubernetes containerization with java, kafka full stack developer.

Questions to me :

1)  How  you are   using  pipelines in your project ?

2)  Can you explain  how AWS you are using  for day to day activities ?

3)  Give me use case and  technical flow of  Singleton  pattern ?

4)  Can you explain  about  authentication and authorization in microservices  ?

5)  How  can  it be possible to deal the  authentication and authorization  between microservice to microservice ?

6)  How  do you implement  the  transactions in springs modules ?  how  you handle  the transaction from  end user  ?

7)  Can you explain  join conditions on the below scenario ?  (  given  one use case with multiple tables and  functionality)

8)  How do you deploy flex code from your project ?

9)  The best troubleshooting that you handled  ?

some more questions - very very fast he asked.