Explain Java collection choices for concurrent read-and-write workloads and their performance tradeoffs.
BrowserStack · 3-4-years · 0 answers
Year not specified · Java, Software Engineering
Software Engineering interview questions for 3–4 years developers
Explore software engineering 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
How would you debug a production race condition in a concurrent Java order-processing workflow?
Paytm · 3-4-years · 0 answers
Year not specified · Java, Software Engineering
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
How do you protect a Java service from slow dependencies using timeouts, retries, bulkheads, and circuit breakers?
Zomato · 3-4-years · 0 answers
Year not specified · Java, Microservices, Software Engineering
Explain equals and hashCode in Java and the production bugs caused by an inconsistent implementation.
CRED · 3-4-years · 0 answers
Year not specified · Java, Software Engineering
How would you add distributed tracing, structured logging, and correlation IDs across Java microservices?
Flipkart · 3-4-years · 0 answers
Year not specified · Java, Microservices, Software Engineering
How would you version a public Spring Boot API without breaking existing web and mobile clients?
PhonePe · 3-4-years · 0 answers
Year not specified · Java, Spring Boot, Software Engineering
Explain immutability in Java using records and final fields, including its value in API models.
PhonePe · 3-4-years · 0 answers
Year not specified · Java, Software Engineering
How would you investigate high heap usage, garbage collection pauses, and memory leaks in a JVM service?
PhonePe · 3-4-years · 0 answers
Year not specified · Java, Software Engineering
What is the correct way to implement consistent exception handling and Problem Details in Spring Boot?
Razorpay · 3-4-years · 0 answers
Year not specified · Java, Spring Boot, Software Engineering
Explain CompletableFuture and Java virtual threads, including cancellation and blocking-call risks.
Freshworks · 3-4-years · 0 answers
Year not specified · Java, Software Engineering
Explain singleton, prototype, request, and session bean scopes in Spring with practical failure examples.
Freshworks · 3-4-years · 0 answers
Year not specified · Java, Spring Boot, Software Engineering
Explain Java streams and lazy evaluation, and identify cases where a normal loop is clearer or faster.
Zoho · 3-4-years · 0 answers
Year not specified · Java, Software Engineering
Explain the equality and hashing rules for C# classes and records, and how mistakes affect dictionaries and sets.
BrowserStack · 3-4-years · 0 answers
Year not specified · .NET, C#, Software Engineering
How would you investigate a production-only race condition in an asynchronous C# order workflow?
Paytm · 3-4-years · 0 answers
Year not specified · .NET, C#, Software Engineering
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
How do you make a .NET API resilient to a slow or failing third-party service using timeouts, retries, and circuit breakers?
Zomato · 3-4-years · 0 answers
Year not specified · .NET, Microservices, Software Engineering
Explain C# delegates, events, and Func or Action with an example from a real application.
CRED · 3-4-years · 0 answers
Year not specified · .NET, C#, Software Engineering
How do React error boundaries and ASP.NET Core error responses work together to create a resilient user experience?
CRED · 3-4-years · 0 answers
Year not specified · .NET, React, Software Engineering
How would you add distributed tracing, structured logs, and correlation IDs to a .NET microservices system?
Flipkart · 3-4-years · 0 answers
Year not specified · .NET, Microservices, Software Engineering