Computer Science

A Computer Science degree teaches you the theory and practice behind how computers, software and digital systems work. You will study topics such as algorithms, data structures, operating systems, software engineering and artificial intelligence, alongside practical programming in languages like Python, Java and C++. Many programmes include a paid work placement year with technology companies, giving you real industry experience before you graduate. Some courses offer optional modules in cybersecurity, machine learning, human-computer interaction or games development, letting you shape your studies around your interests. A typical week mixes lectures with laboratory sessions where you write and debug code, work on group projects, and solve computational problems independently.

Entry is through the CAO at Level 8, and competition for places is high, particularly at TCD and UCD. You will generally need to have studied Higher-level Mathematics in the Leaving Certificate, as it is either required or strongly recommended by most institutions. Higher-level English and a science subject such as Physics or Applied Mathematics can strengthen your application. If you do not meet the points directly, a relevant QQI Level 5 or Level 6 FET/PLC course in Computing or IT can provide a recognised progression route onto Level 7 or Level 8 programmes. Mature applicants (aged 23 or over) may apply through the mature student pathway, and HEAR and DARE schemes are available for eligible applicants from socioeconomically disadvantaged backgrounds or with disabilities.

Graduate prospects for Computer Science in Ireland are among the strongest of any discipline, with low unemployment rates and competitive starting salaries typically ranging from around €38,000 to €55,000 per year for entry-level roles. Demand from multinational technology companies based in Ireland continues to drive recruitment, and many graduates receive job offers during or immediately after their placement year. Experienced professionals in specialisms such as cloud computing, AI and cybersecurity can command salaries well above €70,000. The Irish technology sector shows no sign of contraction, and international remote-working opportunities are also widely available to Irish graduates.