Posted: September 22, 2026Most construction and engineering professionals give little thought to references until they are under offer. At that point, the request tends to arrive quickly, and the pressure to respond promptly can lead to choices that are not as considered as they should be.
References matter. In Irish construction, where reputations are built over years and the professional network is tighter than it appears, a strong reference from the right person carries genuine weight. A weak or qualified one can introduce doubt at the worst possible moment in a hiring process.
This piece covers who to ask, what a referee can and cannot say under Irish employment law, and how to manage references strategically rather than treating them as an afterthought.
When References Are Taken
The timing of reference checks varies by firm and by role. In most Irish construction hiring processes, references are requested after a verbal offer has been made but before a contract is issued. For senior appointments, they may be taken more formally, with structured questions put to referees in writing or by phone.
In some cases, particularly for roles involving financial responsibility or access to sensitive commercial information, references may be taken more thoroughly than a candidate expects. It is worth being prepared for this regardless of the seniority of the role you are applying for.
One important point: always inform your referees before you give their details. A referee who is contacted without warning and is unprepared for the call is more likely to give a vague or cautious response, which serves neither of you well.
Who to Ask
The default assumption is that a direct line manager from your most recent role is the strongest reference. In most cases, that is correct. A hiring manager wants to hear from someone who managed you directly, observed your work, and can speak to your performance with authority.
However, the most recent manager is not always the right choice. If you left a role under difficult circumstances, if the relationship with your manager was poor, or if you are concerned about the reference that would be provided, you have options.
A senior colleague who worked closely with you, a client-side contact who can speak to your performance on a project, or a manager from an earlier role who knows your work well can all be legitimate referees. What matters is that the person can speak credibly and specifically about your professional capabilities.
For construction and engineering roles, project-specific references can carry particular weight. A client representative, a project director, or a principal contractor contact who can speak to how you performed on a significant scheme gives a hiring manager concrete, verifiable information rather than general character endorsement.
Avoid listing referees who are personal friends without a professional basis for their reference, or who hold a junior position relative to the role you are applying for. Neither adds much, and both can raise questions about why you have not listed someone more senior.
What a Referee Can Legally Say in Ireland
This is an area where there is a significant gap between what many professionals believe and what is actually the case.
In Ireland, there is no legal obligation on an employer to provide a reference at all. Many larger firms have a policy of confirming only dates of employment and job title, precisely to avoid the legal risk associated with providing more detailed information. If your previous employer operates this policy, it is worth knowing in advance so you can set expectations with a prospective employer rather than having a thin reference come as a surprise.
Where a reference is provided, the referee has a legal obligation to be honest. They cannot deliberately provide false information, but they are equally not required to be positive. A reference that is technically accurate but damaging, one that confirms employment dates but declines to comment further, or that answers questions in a way that implies concerns without stating them directly, can be as problematic as an explicitly negative one.
If you have reason to believe a previous employer might provide a reference that misrepresents your performance or conduct, you have the right in Ireland to request a copy of any written reference provided about you under data protection legislation. This is worth being aware of, though in practice most reference issues are resolved through choosing the right referees rather than through formal channels.
Managing a Difficult Employment History
Most careers in Irish construction include at least one role that did not work out as planned. A short tenure, a difficult departure, or a period of conflict with a manager does not have to derail a reference check if it is handled thoughtfully.
Be honest with a prospective employer about any reference you have concerns about, before they contact that referee. Flagging that a particular role ended on difficult terms, and offering an alternative referee who can speak more fully to your work, is far better than allowing a poor reference to arrive without context.
If a role was very short and you do not intend to include it on your CV, be aware that gaps or inconsistencies in employment history are noticed, particularly at senior level in Irish construction where project timelines are often verifiable.
A Practical Checklist
Before you begin a job search, it is worth taking ten minutes to sort your references:
- Identify two or three people who can speak credibly and positively about your work, ideally from the last five years.
- Contact them in advance to confirm they are willing and to give them a sense of the roles you are pursuing.
- Brief them on the key aspects of your experience you would like them to highlight.
- Check whether your current or most recent employer has a formal reference policy, and factor that into how you present your reference options.
- If you have a concern about any reference, address it proactively with the prospective employer rather than hoping it does not arise.
References are one of the few parts of a hiring process where preparation makes a direct and measurable difference. Getting them right costs very little. Getting them wrong at the final stage of a process you have invested significant time in is an avoidable outcome.
If you are considering a move and want a confidential conversation about the market, the Sonas Technical team works exclusively within construction and engineering in Ireland. Visit sonastechnical.com or call 01 443 3917.