Credit Control Assistant Join Our Team as a Credit Control Assistant firmus energy (supply) is Northern Irelands leading natural gas provider, proudly serving over 113,000 residential and commercial customers since 2005. Were committed to delivering safe, sustainable, and cost-effective energy solutionsalways with a focus on innovation and customer satisfaction. When you join firmus energy, youre not just taking a jobyoure becoming part of a dynamic, forward-thinking team. We offer a colla...