Why These Questions to Recruit a Software Engineer?
The software engineer is at the heart of creating technological value. Beyond technical mastery, you must evaluate ability to design robust architectures, code quality rigor, teamwork, and continuous improvement culture. These 20 questions cover system design, development practices, problem-solving and cultural fit.
Question Grid by Competency
20 Software Engineer Interview Questions
| Question | Competency Evaluated | Level |
|---|---|---|
| Describe the architecture of a complex system you designed. | Architecture | Senior |
| How do you choose between monolithic and microservices architecture? | System Design | Confirmed |
| Explain your approach to refactoring legacy code. | Code Quality | Confirmed |
| How do you manage technical debt under pressure? | Technical Management | Senior |
| Describe your testing strategy: unit, integration, e2e. | Testing | Confirmed |
| How do you ensure scalability of high-traffic applications? | Performance | Senior |
| What's your approach to securing a REST API? | Security | Confirmed |
| How do you conduct constructive code reviews? | Collaboration | Confirmed |
| Describe a complex bug you resolved and your approach. | Problem Solving | Confirmed |
| How do you estimate feature complexity? | Estimation | Junior |
| What's your ideal CI/CD approach? | DevOps | Confirmed |
| How do you handle technical disagreements with colleagues? | Communication | Junior |
| Explain a design pattern you use regularly. | Design Patterns | Confirmed |
| How do you stay current with technology evolution? | Monitoring | Junior |
| Describe your SQL and NoSQL database experience. | Databases | Confirmed |
| How do you approach technical documentation? | Documentation | Junior |
| Tell about learning a new technology quickly. | Adaptability | Junior |
| How do you manage deploying critical features to production? | Deployment | Senior |
| What's your agile methodology experience? | Methodology | Junior |
| Why are you interested in our tech stack? | Motivation | Junior |
How to Structure the Technical Interview
- 1
Introduction and Background (10 min)
Explore technical background, notable projects and candidate motivations.
- 2
Architecture and Design Questions (20 min)
Evaluate ability to design systems and make justified technical choices.
- 3
Practical Exercise or Live Coding (20 min)
Propose concrete problem to observe approach, code quality and communication.
- 4
Collaboration and Soft Skills (15 min)
Test teamwork ability, conflict management and communication.
- 5
Candidate Questions and Closing (10 min)
Questions asked reveal technical maturity and genuine interest.
Tip for Evaluators
Points to Verify During Interview
- Software architecture mastery
Ability to justify technical choices and identify trade-offs
- Code quality and readability
Clean code, naming, structure, error handling
- Testing culture
Systematic testing approach, TDD or BDD
- Collaboration and communication
Code reviews, pair programming, documentation
- Curiosity and tech monitoring
Learning ability and openness to new approaches
Frequently Asked Questions
Live coding or async testing?
How to evaluate without knowing their stack?
How many technical interviews?
How to avoid bias in technical evaluation?
What red flags to watch for?
Optimize Your Tech Recruitment
Discover how Aurelia.jobs structures technical interviews to find the best engineers.