Full-stack interview preparation for developers with 3–4 years of experience
Start with the role, then choose your questions
Read the job description and separate the expected backend, frontend, database and deployment skills. For a .NET full-stack role, focus your shortlist on C#, ASP.NET Core, SQL and the requested frontend framework. For Java, prioritise Java fundamentals, Spring, persistence and the actual frontend stack. A question labelled with a company is preparation context, not a promise that the company will ask it.
Build a small revision list you can explain
Use the company, technology and experience filters on wasAsked. Save questions that reveal a gap in your understanding instead of collecting every question. Start with one question each about API design, data access, frontend state, testing and production troubleshooting. In practice mode, explain your answer aloud before opening community discussion.
Use a repeatable answer structure
State your proposed approach first. Explain the constraints, give a concrete example, discuss an alternative and describe how you would verify the result. For an API performance question, distinguish database time, network time and application work before recommending caching. Explain cache invalidation and measurement rather than claiming caching always fixes a slow endpoint.
Connect answers to your own delivery experience
At three to four years of experience, prepare examples of features you delivered, defects you investigated and decisions you can defend. Describe your contribution accurately: what failed, what evidence you gathered, what you changed and how you checked it. Remove confidential customer data, credentials and proprietary implementation details.
A flexible seven-session preparation plan
Session 1: map the job description and shortlist questions. Session 2: explain backend and authentication decisions. Session 3: practise SQL, indexing and transactions. Session 4: review frontend state and API failure handling. Session 5: discuss testing and deployment. Session 6: practise a system design scenario with explicit trade-offs. Session 7: revisit weak answers and run a mock interview. Repeat sessions as needed; this is a suggested routine, not a guarantee of interview success.
Compare community answers critically
Expand Read more to study the full explanation. Check framework versions and test unfamiliar claims against official documentation or a small reproducible example. Different constraints can justify different answers. Visit a contributor's profile to see their published work, or follow them to maintain a connection within the community; following does not currently send notifications.
Make the next person's preparation better
Share questions you are allowed to discuss, label the company and technology accurately, and provide the interview year only when known. When answering, lead with a clear explanation and include examples, limitations and references where helpful. Editorial practice questions are not verified interview reports. Read the editorial policy before contributing.
Choose a company · Choose a technology · Build your revision list