There is a version of interview preparation that most candidates do. They research the company, rehearse a few answers, and make sure they know their own CV. That is the baseline, and it is not enough to stand out in a competitive market.
What separates the candidates who get offers from those who don't is rarely a dramatic difference in technical ability. More often it comes down to a collection of smaller things: how prepared they appear, how they communicate under pressure, how genuinely interested they seem, and how well they read the room. These are things hiring managers notice immediately, and they are also things that most candidates either don't think about or underestimate.
Below we take a look at what we hear regularly from hiring managers in Irish tech companies.
Most Candidates Are Less Prepared Than They Think
According to research by TopInterview, 70% of hiring managers say that being unprepared is the most common mistake candidates make during interviews. That is a striking figure, and it holds true in the Irish market. The candidates who stand out are not necessarily the most technically gifted. They are the ones who have done their homework thoroughly enough to have a real conversation rather than a rehearsed presentation.
What does genuine preparation look like from a hiring manager's perspective? It means knowing what the company actually does, not just what the website says. It means understanding the team's challenges, the product's position in the market, and why the role exists. It means being able to answer "why do you want to work here specifically?" with something more convincing than a reworded version of the job description.
Hiring managers in Ireland, as elsewhere, spend a significant portion of their working lives interviewing candidates. They can tell within a few minutes whether someone has spent thirty minutes or three hours preparing. The ones who have done the deeper work are immediately more credible, even before the technical conversation begins.
They Are Evaluating How You Think, Not Just What You Know
This is one of the things hiring managers most consistently wish candidates understood. Technical interviews are not memory tests. The goal is not to see whether you can recite the correct answer. It is to understand how you approach a problem you haven't seen before, how you handle ambiguity, and whether you can think out loud in a structured way under mild pressure.
Candidates who freeze when they don't know an answer immediately, or who go silent while they think, often perform worse than their actual ability warrants. Candidates who narrate their reasoning, acknowledge what they don't know, and work methodically towards a solution tend to perform better even when their eventual answer is incomplete.
The same applies to behavioural questions. Hiring managers are not looking for a perfect story. They are looking for evidence of self-awareness, honest reflection on what happened in a given situation, and some indication of what you learned from it. An answer that acknowledges a mistake and explains what you did differently afterwards is often more compelling than one that presents everything as a smooth success.
Culture Fit Is Real and It Is Being Assessed From the Start
The phrase "culture fit" has become somewhat loaded, but what hiring managers in Irish tech companies mean by it is fairly straightforward. They are asking whether you are someone their team would enjoy working with, trust with difficult problems, and feel comfortable bringing to clients or senior stakeholders.
This assessment begins before the technical interview. It starts with how you communicate in the scheduling email, how you present yourself when you arrive or join a video call, and how you treat everyone you interact with during the process, not just the senior person in the room. Candidates who are warm and engaged with a junior team member during an office visit but noticeably more formal with the hiring manager are noticed.
Irish workplace culture tends to value directness, a degree of informality, and genuine interpersonal warmth alongside professional competence. Candidates who come across as overly scripted, unnecessarily formal, or disengaged from the human side of the conversation can struggle in the Irish market even when their technical credentials are strong. This is particularly worth noting for candidates relocating from other markets where interview culture may be more formal or more performative.
Not Asking Questions Is a Missed Opportunity
Research consistently shows that candidates who ask thoughtful questions at the end of an interview are viewed more favourably by hiring managers. According to a Glassdoor survey on interview behaviour, candidates who engage with the process as a two-way conversation leave a meaningfully stronger impression than those who treat the questions section as a formality.
In practice, this means having genuine questions prepared rather than asking whatever comes to mind in the moment. Good questions show that you have thought seriously about the role, that you care about the team and the work rather than just the job title and salary, and that you are already thinking about how you would contribute.
Questions that tend to land well include those about the team's current challenges, how success in the role is measured, what the onboarding process looks like, and how the company approaches technical decisions. Questions that tend to land less well include anything that could easily have been answered by reading the website, questions that focus primarily on perks and benefits at an early stage, or anything that feels like it is testing or catching the interviewer out.
Being Vague About Your Own Experience Is a Red Flag
Hiring managers regularly raise this as one of their biggest frustrations. A candidate lists a technology or a project on their CV, and when asked about it in the interview they are unable to go into any meaningful depth. This creates an immediate credibility problem that is very difficult to recover from.
The practical implication is straightforward: only put things on your CV that you can speak to in detail under gentle interrogation. If you used a technology briefly on one project two years ago, think carefully about how prominently you feature it. If it is there, be prepared to discuss it honestly, including the limits of your experience with it. Hiring managers are generally fine with "I have used it in a limited context and I am actively developing my knowledge of it." They are not fine with discovering mid-interview that the depth of experience implied on the CV is not there.
This connects to a broader point about honesty. The Irish tech market is smaller than it looks. Hiring managers know each other, move between companies, and talk. A candidate who exaggerates their experience or misrepresents their role in a project will not only fail that interview. They risk their reputation in a market where professional networks are tighter than they are in larger cities.
The End of the Interview Is Part of the Interview
How a candidate closes an interview matters more than most people realise. Finishing with a clear expression of interest, a brief summary of why you believe you are a strong fit, and a confident question about next steps leaves a noticeably better impression than trailing off with a vague thank you.
Hiring managers are making a decision about someone they will potentially work with for years. A candidate who can close a conversation well, who demonstrates genuine enthusiasm without being desperate, and who asks a sensible question about the timeline or process, signals confidence and professionalism. It is a small thing that consistently makes a difference.
Following up with a brief, well-written thank you note after the interview is also worth doing. It is not universally expected in Irish tech hiring, but it is consistently viewed positively by those who receive one. It does not need to be long. A few sentences confirming your interest and referencing something specific from the conversation is enough.
A Final Word on Nerves
Interviewers know you are nervous. According to research by The Ladders, 75% of hiring managers say that excessive nerves are a common issue in interviews. Most interviewers are not trying to trip you up or catch you out. They are trying to get a clear sense of who you are and whether you can do the job. If you can remember that the interview is fundamentally a professional conversation between two people who both want it to go well, it tends to take some of the edge off.
The candidates who perform best in interviews in the Irish tech market are usually the ones who have prepared thoroughly, are honest about what they know and don't know, engage warmly with the people in the room, and treat the process as a genuine two-way exchange. None of those things require a perfect CV or a flawless technical performance. They require preparation, self-awareness, and a willingness to show up as yourself.
If you're prepping for interviews and want to talk through your approach, our team works with candidates at all levels across the Irish tech market. Check out our current tech jobs in Ireland or read our guide to how to ace a pair-programming interview in Ireland for more on what specific interview formats look like in practice.