Interview practice by role
Software Engineer Interview Practice
General software engineer loops combine algorithm rounds, a design round and a behavioural round. Interviewers watch how you reason out loud as much as whether you reach the optimal solution.
160 practice questions4 topics5 typical rounds
How the interview usually runs
Loops differ by company. Treat this as a common pattern, not a fixed format.
- 01Online assessment or screenOne or two algorithm problems with a time limit, often arrays, strings or hash maps.
- 02Coding roundsProblems on trees, graphs, recursion or dynamic programming, solved while you explain your approach.
- 03System designDesign a familiar product such as a URL shortener or a chat service, covering data, scale and failure.
- 04Hiring manager roundProject depth, ownership and how you work with a team.
- 05Behavioural roundConflict, failure, feedback and a time you influenced a decision without authority.
What interviewers probe
- Recognising the pattern behind a problem and stating its complexity
- Talking through edge cases before and after coding
- Requirements gathering and capacity estimates in design rounds
- Trade-offs between simplicity and scale
- Specific, structured stories in behavioural answers
Common mistakes
- Silently coding instead of narrating your reasoning
- Stopping at a brute-force answer without discussing how to improve it
- Giving behavioural answers with no measurable result
Practice questions for Software Engineer interviews
A starting set from each topic. Every question has a short answer, the full reasoning and the follow-ups interviewers ask.
01What patterns help with string manipulation problems?Mediumstrings · frequency-map · patterns02How does the two-pointer technique work?Mediumtwo-pointers · arrays · strings03How does the sliding window technique work?Mediumsliding-window · substrings · arrays04How does load balancing work and how do you choose an algorithm?Mediumload balancing · l4 · l705How does database sharding work and what are the pitfalls?Mediumsharding · partitioning · hotspots06How does database replication work and what consistency issues does it create?Mediumreplication · replication lag · failover07Why are you leaving your current job?Mediummotivation · professionalism · job change08What is your greatest weakness?Mediumself-awareness · growth · weakness09What is your proudest achievement?Mediumimpact · storytelling · ownership10How does the Node.js event loop work?Mediumevent loop · libuv · async11Is Node.js single-threaded? What does that actually mean?Mediumnodejs · concurrency · libuv12How do you handle errors in a Node.js backend?Mediumerror handling · async · reliability
Reading is step one
Now say it out loud.
Understanding an answer and delivering it under pressure are different skills. Rehearse this topic in a live Software Engineer mock interview and get scored feedback on depth, clarity and confidence.