Mercury is the European leader in construction solutions.

We build and manage complex engineering & construction projects for the world’s leading corporations. Our solutions help deliver technologies and life changing advancements that connect people, communities, and businesses, giving them the power to achieve incredible things. Our people have the courage to be innovative. Their determination and sharp focus enable us to deliver with certainty, time and time again.

We deliver our clients’ visions through leading edge construction solutions across multiple sectors, including Enterprise Data Centers, Advanced Technology & Life Sciences, Hyperscale Data Centers, Fire Protection.

At Mercury, it is our duty to encourage and back our people to realize their vision of themselves. We place them at the heart of what we do, providing challenging opportunities to develop within a great team in a supportive environment that allows them to reach their full potential.

The Design Engineer plays a key role within the pre‑construction team, supporting multiple enterprise and hyperscale data centre projects across a diverse client portfolio. Working at the front end of projects, the role focuses on early-stage design development (PCSA), technical assurance, constructability, and risk mitigation in close collaboration with clients, consultants, and the wider supply chain. This position offers exposure to complex, high‑value data centre developments and the opportunity to influence design, cost, and delivery outcomes from inception.

Key Responsibilities of the Role:

Provide support to Pre-construction team on all Engineering functions including, but not limited to the following:

• Familiarization of Design/ specifications and drawings to fully understand the scope of the Project.
• Assist in generation and finalization of estimates, tender documents and resourcing of tender projects.
• Review the MEP design and conduct value engineering exercises to optimize mechanical design solutions.
• To support the engineering requirements through managing & liaising with Key Project Stakeholders (Client, Suppliers, Sub-contractors, Vendors).
• Ensure the design process recognizes current legislation, standards and codes of practice, where appropriate.
• Lead the complete design team including the design consultant, the client, architect and BIM team.
• Interface management between all parties to allow for an efficient design process.
• Responsible for management of RIBA design processes and procedures.
• Review equipment specifications and generate procurement packages.
• Assessment of Sub-contract and Supplier Tender returns for Technical compliance with design intent specifications.
• Review the construction methodology to identify program implications and building logistics.
• Interrogate tender documentation (drawings, specifications, tender addenda, and all other documentation) for commercial risks and scope gaps relating to deliverables.
• Identify project risks and mitigation plans to deal with these risks.
• Mentor and support less experienced engineers, promoting knowledge sharing and professional development.
• Evaluate and promote the use of new engineering practices and processes to enhance delivery time of projects.
• Attend industry events and training sessions to maintain a current understanding of market trends and best practices.

Essential Criteria for the Role:

• 8+ years experience working with a recognized contractor as a mechanical engineer.
• Relevant engineering experience in a general contracting environment is required.
• Honors degree (NFQ Level 8 for Ireland) in Mechanical engineering.
• Proven ability to lead projects, manage technical and financial aspects, and deliver high quality mechanical systems.
• Design and implementation of mechanical systems such as Critical cooling, HVAC, plumbing, and fire protection.
• Knowledge of electrical systems supporting the mechanical plant.
• Strong understanding of industry standards, regulatory requirements, and value engineering principles.
• Experience in mentoring junior engineers and fostering collaboration within multidisciplinary teams.
• Competence in design software such as Navis works, ACC, BlueBeam or similar platforms.
• Strong communication skills to liaise effectively with stakeholders and external consultants.

Desirable

• Chartered Engineer preferred (or working towards it).

Mercury is an equal opportunities employer.