Our Team

The three founders of Deena Energy have a combined experience of more than 70 years in similar engineering services businesses. Our extensive experience, together with that of the rest of the Deena Energy team, enables us to match our employee skill sets to customer needs. Our focus is always on providing quality personnel solutions, with the emphasis on safety and compliance.

Our Team

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Erica Buckley

Field Service Coordinator

Erica Buckley is an operations project manager with significant experience of managing software localisation teams. She is an advocate of service excellence, with a strong track record of leading effective operations teams in international business environments.
Erica is Field Service Coordinator for Deena Energy and has been with the business since 2017. She is responsible for field mobilisations, permits and visas and serves as the main point of contact for all of Deena Energy’s field projects.

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Veronica Cazacov

Field Service Coordinator

Veronica Cazacov holds a Bachelor’s degree in Marketing & Logistics from the Technical University of Moldova, as well as postgraduate diplomas in the areas of social entrepreneurship and the green economy. A fluent speaker of Romanian, English and Russian, Veronica has experience delivering quality solutions in a timely manner in fast-paced organisations.
Veronica joined Deena Energy in the summer of 2018 as Field Service Coordinator. Her responsibilities include supporting field personnel while on assignment, with a focus on travel, visas, logistics, billing and payroll.

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Macdara MacCathmhaoil

Field Service Director

Macdara MacCathmhaoil holds a B.E. in Mechanical Engineering and a Masters in Industrial Engineering from University College Dublin as well as a Postgraduate Diploma in Computer Science from Trinity College Dublin. Mac began his career with GE Power where he fulfilled a number of mechanical and control systems field engineering positions on international projects. Following a successful field engineering career Mac worked in senior management roles with a number of Irish-based companies servicing the Energy industry.
As one of the founders of Deena Energy, Mac is focused on growing the business and developing the optimum talent mix needed to best service new and existing customers. He also oversees the day-to-day operation of the business, along with introducing new technologies to support the ongoing optimization of business processes.

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Sam McArdle

Field Service Director

Sam McArdle has a BA BAI in Mechanical Engineering from Trinity College, Dublin and an MBA from Ulster University. His early career was spent working in the aeronautical industry and subsequently with GE as a Field Engineer working on power generation projects globally, both new-build and plant maintenance. Subsequently he moved into project engineering and commercial operations management for a number of international technical and engineering services organisations.
Sam is Field Service Director for Deena Energy and is one of the founders of the business. His focus is on key customer relationships, engineering management and the delivery of service excellence, while managing day-to-day operations.

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Mary Sirr

Finance Manager

Mary Sirr is an ACCA-qualified accountant and has spent her career in financial management roles since 2005. She is experienced in managing and advising international businesses in all areas of financial reporting and control. Her experience to date covers a range of international business services in the energy, healthcare and investment sectors.
Mary operates as Finance Manager where she heads up the accounting and reporting function. She has been with Deena Energy since it began operations in 2015.

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Mark Walsh

Recruitment Manager

Mark Walsh holds a BSc (Hons) in Polymer Technology, is a CMI Chartered Manager, Certified PMI Project Management Professional (PMP) and also holds post-grad qualifications in leadership and business administration. He began his career in high volume automotive design and manufacturing environments working as a Development Engineer and Project Manager.
Since 2003 Mark has been working with international engineering businesses managing staffing requirements. He has led the hiring of hundreds of professional scientists and engineers for both volume recruitment campaigns and critical strategic hires. Mark has a very strong track record of sourcing and hiring difficult to find technical experts. Mark heads up Deena Technical and drives its growth in the Irish market.