Technical skills get you shortlisted, but the interview decides whether you get the job. Many capable candidates lose offers because they did not prepare, could not explain their work clearly or forgot to ask good questions. These job interview tips focus on IT, DevOps and cybersecurity roles, but most apply to any job.
Before the interview
Research the company and role
Read the job description carefully and list the skills it mentions. Then look at the company’s website, products, recent news and, where possible, its tech stack. As a result, you can link your experience to what they actually need.
Prepare your stories
Pick five or six examples from your work, studies or projects that show problem-solving, teamwork, handling pressure and learning from mistakes. Structure each with the STAR method:
- Situation: the context.
- Task: what you needed to achieve.
- Action: what you did, step by step.
- Result: the outcome, with numbers if possible.
For example: “Our web server kept running out of memory (situation). I had to find the cause before the sale weekend (task). I added monitoring, traced the leak to a cache setting and fixed it (action). Downtime dropped to zero during the sale (result).”
Revise the fundamentals
Expect questions on basics, even for senior roles. Our interview guides cover Linux, CCNA networking, Docker and AWS.
Build a small portfolio
A GitHub repository, a home lab write-up or a blog post shows initiative. For security roles, a documented SOC home lab is a strong talking point.
During the interview
Technical rounds
- Think out loud, so the interviewer can follow your reasoning.
- If you do not know something, say so, then explain how you would find out.
- Ask clarifying questions before solving a problem.
- Start with a simple working solution, then improve it.
Behavioural rounds
- Use your STAR stories.
- Be honest about mistakes, and focus on what you learned.
- Keep answers to about two minutes.
Online interviews
- Test your camera, microphone and internet connection beforehand.
- Use a quiet room with good light and a plain background.
- Close notifications and unnecessary tabs.
- Look at the camera when you speak.
Dress and manners
Dress one level smarter than the company’s daily dress code. In India, smart casual works for most IT firms, and formal wear suits banks and consulting firms. Arrive or log in ten minutes early.
Questions to ask the interviewer
Good questions show genuine interest. For example:
- What would success look like in the first six months?
- What tools and processes does the team use?
- How does the team handle on-call or incidents?
- What learning or certification support do you offer?
- What are the next steps in the process?
After the interview
Send a short thank-you email within a day. Mention one point from the conversation and restate your interest. If you do not hear back by the expected date, follow up politely once.
Common mistakes to avoid
- Speaking badly about a previous employer.
- Memorised answers that do not match the question.
- Claiming skills you cannot demonstrate.
- Asking about salary before the interviewer raises it in early rounds.
For HR-round practice, see our basic HR interview questions.
Preparing for an interview? Browse more questions in our interview preparation hub. For businesses, we also offer security services such as VAPT, server hardening and ISO 27001 readiness.
