So you finally got a response. The resume worked. The recruiter reached out. And now there’s a 30-minute phone call standing between you and the actual interview.
Here’s what most candidates get wrong: they treat the technical screening call like a formality. Something to get through. A box to check before the “real” interviews start.
It’s not. That call is a real filter — and a lot of qualified people fail it for reasons that have nothing to do with their technical skills.
This guide breaks down everything you need to do before, during, and after a technical screening call. Not the generic stuff. The stuff that actually matters.
A technical screening call is usually 20 to 45 minutes. Depending on the company, you might talk to a recruiter first, or you might go straight to a technical phone screen with an engineer.
The recruiter call is mostly about fit — do you meet the basic requirements, do you sound excited, can you communicate clearly? The technical phone screen is different. It usually involves a mix of light coding problems, concept questions, or system design discussion depending on the role level.
What both have in common: the person on the other end is forming an impression quickly. They’re deciding whether it’s worth everyone’s time to move you forward. And they’re doing that based on more than just your answers — your energy, your clarity, how prepared you seem, all of it counts.
Most candidates know this in theory. But then they walk into the call underprepared and wonder why they got a rejection email four days later with no feedback.
Spending five minutes on a company’s About page isn’t research. Recruiters can tell the difference between someone who glanced at the website and someone who actually looked into the company.
Before your call, you should know:
If the company has a product, use it. Or at least read through user reviews and community discussions. You want to walk into the call with a real opinion, not a rehearsed summary of their marketing copy.
The two questions you will almost certainly get asked are “What do you know about us?” and “Why are you interested in this role?” If your answers sound generic, you’re already behind.
As a technology career coach, we work with candidates on exactly this — figuring out how to research companies strategically so you’re not just regurgitating what’s on their homepage but actually speaking to what matters to the team you’d be joining.
“Tell me about yourself” is the most predictable question in any interview. It’s also the one most people answer badly — either too long, too rambling, or too focused on their entire work history instead of what’s relevant.
Keep it to about 60 seconds. The structure that works: where you’ve been, what you’ve built or accomplished, and why you’re here talking to this company specifically. That last part is the one candidates usually leave out.
You should also have short, clear answers ready for follow-up questions like:
These aren’t trick questions, but they trip people up when they haven’t thought about them ahead of time. A good interview coaching session is worth more here than hours of solo prep — because you need someone to tell you when your answers drift or fall flat.
If it’s a technical screening call (not just a recruiter screen), you need to review the fundamentals relevant to the role. That means:
Don’t try to review everything. Look at the job description carefully, note what they’re emphasizing, and go deep on those areas. If the role mentions distributed systems repeatedly, that’s where your prep time should go.
One thing that separates prepared candidates from unprepared ones: knowing how to talk through your thinking out loud. Most interviewers aren’t just evaluating your answer — they’re evaluating how you approach the problem. If you freeze and go quiet, that reads as a red flag even if you eventually get to the right answer.
You don’t need to perform. You need to be present and direct.
Greet them by name if you have it. Sound like you’re glad to be talking to them — not nervous, not over-caffeinated, just genuinely engaged. This sounds obvious but a lot of candidates are so focused on getting through the questions that they forget the human part of the conversation.
Have a quiet space. Have a glass of water. Have a few notes nearby — not a script, just a reminder of the key points you want to hit.
For behavioral questions, use a tight version of the situation-action-result structure. Don’t spend three minutes setting up the context. Get to the point, tell them what you did, and explain what happened. Two minutes per answer is usually enough.
For technical questions, the key habit is narrating your thinking. If you’re working through a problem, say what you’re considering. Interviewers hear hundreds of silent pauses — what they remember is the candidate who walked them through their reasoning, even if the answer wasn’t perfect.
If you don’t know something, say so clearly and then show them how you’d think through it. “I haven’t worked with that specific tool, but here’s how I’d approach learning it” is a real answer. Bluffing your way through is not.
Most candidates either don’t ask questions or ask something generic like “What does a typical day look like?” That’s fine, but it won’t make you memorable.
The questions that leave an impression are the ones that show you’ve thought about the role as a real job, not just a title:
That last one is underused. It turns the conversation, builds actual rapport, and often gets you genuinely useful information about the culture.
Avoid asking anything that’s easily answered on the company’s website. It signals you didn’t do your research.
Most candidates say “thanks, looking forward to hearing from you” and hang up. Don’t just let the call fizzle out.
Before you get off, ask about next steps clearly: “What does the rest of the process look like, and what’s the timeline?” You can also ask if there’s anything they’d want you to clarify or expand on — it opens the door for real-time feedback and shows you’re not just hoping for the best.
Send a short follow-up note within 24 hours. It doesn’t need to be elaborate. One or two sentences thanking them for their time, referencing something specific from the conversation, and reaffirming your interest. That’s it.
Most candidates don’t do this. Which means when you do, you stand out.
If you haven’t heard back within the timeframe they mentioned, one follow-up email is completely appropriate. Something like: “Wanted to follow up on our call from last week — I’m still very interested in the role and wanted to check in on next steps.” Don’t pepper them with messages, but don’t go quiet and assume silence means no.
These show up over and over, and they’re all fixable:
Vague answers to basic questions. If you can’t clearly articulate what you did at your last job and why it mattered, that’s a problem. Practice your stories before the call.
Not sounding interested. Recruiters notice when you sound like you’re going through the motions. You don’t have to fake enthusiasm, but you do have to show up like this opportunity matters to you.
Skipping the research. Companies want to hire people who want to work there specifically, not just people who want any job. If your answers could apply to any company, they will.
Freezing under technical questions. This usually comes from lack of practice rather than lack of knowledge. Mock interview preparation isn’t just about learning material — it’s about training yourself to think out loud under pressure.
Forgetting to ask anything. A two-way conversation is a better interview than a one-way interrogation. Asking real questions shows you’re taking the role seriously and thinking about whether it’s a good fit for you too.
A technical screening call isn’t just about clearing a hurdle. It’s your first shot at showing a company that you’re someone worth investing time in.
The candidates who get through are usually not the most technically brilliant people in the applicant pool. They’re the ones who prepared well, communicated clearly, and showed genuine interest in the specific company they were talking to.
That’s entirely learnable. It just takes actual preparation — not hoping that your resume will do the work for you.
If you’re working through a job search and struggling to get past the early stages, the IT job support services are built exactly for this. Not generic advice — specific preparation for the calls and interviews you’re actually going to have.
Your resume got you the call. Now it’s your turn.
Looking to strengthen your resume before the call even happens? Check out TechXpert’s resume building services and resume session coaching — because the screening call is only one piece of the puzzle.