AIEnterprise Senior Java Developer interview questions

First round was a written paper-pen test. Since they were hiring for specific project they were looking for Java 8 knowledge. There were 3 questions, all on Java 8 functional programming and lambdas, etc. Results were declared immediately and next was design and algorithm based round. Questions were asked based on tree operations and heaps, etc and to write an algorithm to insert a product in an e-commerce website structure.