Tech interview questions, by job

Pick your job. Every question comes with the strongest answer, why it works and what a good answer covers.

• Frontend / web developer — React, Angular, Vue, HTML & CSS
• Backend developer — APIs, services, databases — Node, .NET, Java, Python
• Full-stack developer — Frontend and backend together
• Mobile developer — iOS, Android, React Native, Flutter
• QA / manual tester — Test plans, exploratory testing, bug reports
• Automation developer — QA automation & SDET — Selenium, Playwright, Cypress, API tests
• DevOps / SRE / cloud — CI/CD, Docker, Kubernetes, AWS, Azure, GCP
• Data analyst / BI — SQL, dashboards, Excel, Power BI, Tableau
• Data engineer — Pipelines, ETL, warehouses, Spark
• Data science / ML / AI — Models, statistics, Python, LLMs
• Cybersecurity — SOC, pentesting, AppSec, compliance
• IT support / sysadmin — Helpdesk, networks, Windows & Linux admin
• Embedded / hardware — Firmware, C/C++, RTOS, electronics
• Product manager — Roadmaps, discovery, specs, metrics
• UX / UI designer — Research, wireframes, Figma, design systems
• Project / delivery manager — Scrum master, agile delivery, PMO
• Engineering manager / tech lead — Leading developers, hiring, delivery, architecture calls
• Solutions / cloud architect — System design, integration, cloud cost, trade-offs
• Database administrator — Backups, performance, replication, migrations
• AI engineer — LLM apps, RAG, agents, MCP, evals, AI in production