Explain hexagonal architecture in Java and when extra ports and adapters add more complexity than value.
Zomato · 3-4-years · 0 answers
Year not specified · Java, Software Engineering, System Design
System Design interview questions for 3–4 years developers
Explore system design interview questions for 3–4 years developers. Read questions shared by candidates and compare community answers before your next interview.
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Questions
Design an append-only audit trail for sensitive changes in a Java product application.
Swiggy · 3-4-years · 0 answers
Year not specified · Java, Authentication & Security, System Design
Explain SQL transaction isolation and choose an approach for inventory reservation under concurrency.
Flipkart · 3-4-years · 0 answers
Year not specified · Java, SQL, System Design
Design a multi-tenant Java application that prevents cross-customer data access.
PhonePe · 3-4-years · 0 answers
Year not specified · Java, Authentication & Security, System Design
Design a Redis caching strategy for a Spring Boot product service, including invalidation and stampede control.
Freshworks · 3-4-years · 0 answers
Year not specified · Java, Redis, System Design
Design a React and Spring Boot checkout flow that safely handles duplicate payment requests.
Zoho · 3-4-years · 0 answers
Year not specified · Java, React, System Design
How would you design a Spring Boot API for a high-traffic product catalog while keeping latency predictable?
Zoho · 3-4-years · 0 answers
Year not specified · Java, Spring Boot, System Design
Explain clean architecture in .NET and identify signs that the abstraction layers have become unnecessary ceremony.
Zomato · 3-4-years · 0 answers
Year not specified · .NET, Software Engineering, System Design
Design an audit trail for sensitive changes that is useful to support teams and resistant to tampering.
Swiggy · 3-4-years · 0 answers
Year not specified · .NET, Authentication & Security, System Design
Explain SQL transaction isolation levels and choose one for an inventory reservation workflow.
Flipkart · 3-4-years · 0 answers
Year not specified · .NET, SQL, System Design
Design a multi-tenant .NET application that prevents one customer from reading another customer’s data.
PhonePe · 3-4-years · 0 answers
Year not specified · .NET, Authentication & Security, System Design
How would you split a modular .NET monolith into microservices without creating a distributed monolith?
Razorpay · 3-4-years · 0 answers
Year not specified · .NET, Microservices, System Design
Design a caching strategy using Redis for a .NET product API, including invalidation and cache-stampede protection.
Freshworks · 3-4-years · 0 answers
Year not specified · .NET, Redis, System Design
Design a React and ASP.NET Core checkout flow that remains safe when a customer submits the same payment twice.
Zoho · 3-4-years · 0 answers
Year not specified · .NET, React, System Design
How would you design an ASP.NET Core API for a high-traffic product catalog while keeping response times predictable?
Zoho · 3-4-years · 0 answers
Year not specified · .NET, ASP.NET Core, System Design