Electrical Design Engineer – Data Centres

ZeroOne is a rapidly growing Dublin-based MEP consultancy specialising in the design of mission-critical data centre infrastructure across Europe.

We are looking for Electrical Design Engineers to join our Dublin team. This is an opportunity to develop your career working on some of the most technically challenging electrical engineering problems in the industry, particularly in the areas of power distribution, electrical infrastructure, and mission-critical systems.

As chip power densities continue to increase and electrical systems become more sophisticated, the demand for engineers who can develop robust, efficient and resilient electrical designs is growing rapidly. At ZeroOne, you’ll apply your engineering fundamentals to the design of electrical systems for hyperscale, colocation and next-generation AI data centres.

You’ll work alongside experienced electrical engineers and founding directors, gaining practical experience across the full design process while developing the technical skills needed to build a successful career in specialist electrical engineering.

What You’ll Be Working On

• Supporting the design and delivery of electrical systems for large-scale data centre projects across the EMEA region.
• Developing an understanding of LV and MV power distribution systems, standby generation, UPS systems, transformers, switchgear and other critical electrical infrastructure.
• Assisting with electrical engineering calculations, equipment selection, system schematics, single-line diagrams, technical reports and design documentation.
• Supporting the development and coordination of electrical designs using industry-standard software.
• Developing an understanding of electrical load assessments, cable sizing, voltage drop, fault level calculations, protection and discrimination.
• Working with senior engineers to understand how complex electrical systems are designed, analysed, coordinated and delivered.
• Assisting with the design of resilient electrical distribution systems for mission-critical environments.
• Supporting the development of electrical layouts, containment, busbar, small power, lighting, emergency lighting and other building electrical services.
• Collaborating with mechanical engineers, clients and project teams to deliver coordinated, high-quality designs.
• Gaining exposure to project meetings, design reviews and site visits across Europe as your experience develops.

About You

We’re particularly interested in candidates who are curious, technically driven and excited by the opportunity to solve complex engineering problems.

- Currently completing, or recently completed, a bachelor’s degree or master's in Electrical Engineering or a closely related discipline.

- Strong academic grounding in electrical engineering principles and power systems.

- A genuine interest in electrical systems, power distribution, and engineering design.

- A proactive attitude and willingness to learn.

- Strong analytical, problem-solving and communication skills.

- Permanent legal right to live and work in Ireland.

- Experience or familiarity with AutoCAD, Revit, Dialux, Amtech or other engineering software.

- Base knowledge of LV/MV distribution systems, transformers, generators, UPS systems or data centre electrical infrastructure.

- Relevant project, placement, research or university design experience.

- An interest in data centres, high-tech facilities or other mission-critical environments.

You do not need to have previous data centre experience. We are primarily looking for strong engineering fundamentals, intellectual curiosity and the motivation to develop into an excellent engineer.

About ZeroOne

ZeroOne is a specialist MEP design consultancy focused exclusively on the European data centre sector. Founded in 2025, we have already grown to a team of more than 20 mechanical and electrical engineers, with significant further growth planned. Our Dublin-based team works on projects for some of the world's leading technology companies, hyperscalers, colocation providers and neocloud operators, including Microsoft, Google, Amazon, and CoreWeave.

Our projects span the EMEA region, with engineers regularly involved in work across continental Europe. Recent project locations have included Copenhagen, Berlin, Amsterdam and the Azores.

We combine the technical expertise of an experienced core team with an agile, collaborative approach to project delivery. As a growing consultancy, we offer engineers the opportunity to take on meaningful responsibility early, work closely with experienced engineers and see how their designs contribute to real-world infrastructure.

Why Join ZeroOne?

Engineer the infrastructure behind AI:

Gain experience in one of the fastest-evolving areas of electrical engineering, from conventional data centre power distribution to the increasingly demanding electrical infrastructure required for high-density AI facilities.

Learn directly from experienced engineers:

Work closely with senior engineers and founding directors who have delivered some of Europe's largest and most complex data centre projects.

Build a strong technical foundation:

Develop practical design skills while applying the engineering principles you studied at university to complex, real-world systems.

International project exposure:

Work on projects across Europe, with opportunities for site visits and exposure to different engineering standards, technologies and project environments.

Grow with the company:

Join a young, ambitious consultancy at an exciting stage of its development, with genuine opportunities to progress as the business grows.

A collaborative, flexible working environment:

Be part of an international team that values technical excellence, learning, initiative and teamwork.

- Hybrid and flexible working model

- 22 days paid annual leave

- Structured technical mentoring and professional development

- Support towards professional accreditation

- Opportunities for international project travel

- Regular social outings with our Social Committee

Application

If you’re an electrical engineering graduate or early-career engineer with a strong interest in electrical design, power systems and technically challenging engineering projects, we would love to hear from you.