Recruiter got in touch via LinkedIn. Used the tactic of saying that the salary was up to a very big amount. Then we had a quick phone call for him to explain a little bit more about the company and the benefits. Next step was a hackerrank test with some theory tests and two of those ridiculous puzzles. Moving on, there was a remote live coding with two developers on hackerrank, with one front-end problem and one back-end problem. Final step was the face-to-face interview on booking headquarters (3 of them). With 2 front-end developers (tooltip), with 2 back-end developers (game of life) and behavioural with a director. I didn't receive a call with feedback. Just a generic/automatic email saying that they decided to not proceed with my application.

. Data Structures & Algorithms Topics to cover: Arrays, Linked Lists, Stacks, Queues, Trees, Graphs, Heaps, Hash Tables, Tries. Algorithmic Techniques: Sorting, Searching, Dynamic Programming, Divide & Conquer, Greedy Algorithms, Backtracking. Complexity Analysis: Time and Space complexity (Big O notation). 2. Cloud Cloud Concepts: Cloud computing models (IaaS, PaaS, SaaS), Cloud providers (AWS, Azure, Google Cloud). Services: EC2, Lambda, S3, RDS, CloudFormation, CDK, Kubernetes. Deployment & Scalability: Autoscaling, Load balancing, Containers, Serverless architecture, CI/CD pipelines. 3. System Design Core Topics: High-level design, Low-level design, Designing scalable systems, Distributed systems, CAP theorem, Consistency, Availability, Partition tolerance. Architecture Patterns: Microservices, Monolithic, Event-driven architecture, CQRS. Tools: Databases (SQL, NoSQL), Caching (Redis, Memcached), Message Queues (Kafka, RabbitMQ). 4. Scalability Vertical vs Horizontal Scaling: When to use each approach. Load Balancing: Types (Round-robin, Weighted, etc.), Algorithms. Caching: Distributed caching systems, Strategies like cache eviction policies, Cache-aside pattern. 5. Behavioral Interview STAR Method: Situation, Task, Action, Result framework for answering questions. Leadership Qualities: Conflict resolution, Team collaboration, Problem-solving approach.