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firmus energy Jobs
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firmus energy is going through a period of change not only in how we deliver energy for the future but in how we attract and retain talent and provide a great working experience. That’s why we’re committed to becoming an employer of choice, both for the benefit of our people, and the organisation.

Working at firmus energy

firmus energy is an award-winning, Top 100 energy business based in Antrim with almost 130 employees. We design & build gas networks across Northern Ireland and supply natural gas to over 111,000 homes and businesses. Established in 2005 we built our network across 35 towns and cities in our original 'Ten Towns' network. Our network is more than 1,900km, the equivalent of laying mains from Antrim to Frankfurt!

What makes firmus energy a great place to work?

  • We have an important job to do helping deliver reliable and sustainable green gas to heat homes, power factories, universities and critical services.
  • We are a values-based, award-winning energy business with a family feel.
  • We are committed to offering rewarding and challenging careers in the energy sector and provide excellent remuneration and benefits packages, not least hybrid working for all staff.
  • We care about our people, the environment and the communities we work in and we have fun too.

Our benefits

At firmus energy we provide an excellent total rewards offering including an annual bonus for everyone, regardless of position with pay reviews being undertaken every year. We understand that a healthy workplace improves employees' overall wellbeing and are committed to providing an extensive array of wellbeing initiatives. We have dedicated Mental Health First Aiders and offer Private Medical Insurance to everyone from day one of employment.

  • Hybrid Working
  • Gym Membership Subsidy
  • Annual Flu Jab Voucher
  • Free On-Site Parking
  • Coffee Station
  • Enhanced Sick Pay
  • Enhanced Maternity / Paternity Options
  • Training and Up Skilling Support

Why not join us on our journey to a cleaner, brighter future as we transition towards more renewable sources of energy.

Check out our current vacancies below.  We look forward to hearing from you.

Information for candidates: We use reserve lists for positions where more than one candidate is deemed suitable. Reserve lists are for 12 months during which reserve candidates will be offered the same or similar post should one become available.
Specific Purpose (temporary) Contracts: Should a permanent vacancy arise during the course of a Specific Purpose Contract, the successful candidate will be offered the position on a permanent basis where eligible.



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What kind of business are you?

Why am I having to do this?

To give you the most accurate information for your town and county, please enter your postcode below.

How do you pay for your natural gas?

By Credit

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With a Pay as You Go card

Do you purchase a top-up card for your energy?


What kind of business are you?

Small or Medium Business

Small businesses spend about £2,600 or less per bill. Medium businesses spend about £35,000 or less per bill.


Large Business

Large businesses spend about £250,000 or less per bill

Make sure you have your bank details and SMP or meter serial number ready

Bank details

All we need is your account number and sort code *


SMP Number

This is the number usually at the top right of your bill or on your connection paperwork

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If your account requires 2 signatures, or you are not the bank account holder, please call us first on 0330 024 9000
If you don’t have this number, call our switch team on 0330 024 9000