Joining firmus energy means becoming part of a dynamic and forward-thinking team with exciting opportunities for professional growth and development. We offer a collaborative work environment, competitive benefits, and the chance to make a meaningful impact in Northern Ireland’s energy sector. We are seeking a motivated and detail-oriented individual the chance to join our Credit Control Team in the role of Credit Control Assistant, working within a modern office environment while benefiting from genuine opportunities for career progression and development. As Credit Control Assistant, you will play a key role in supporting the organisation's credit control operations by assisting with the management of outstanding accounts, maintaining accurate records, and communicating with internal teams and our clients. The role requires strong organisational ability, attention to detail, and the confidence to manage financial discussions in a professional manner with domestic and commercial clients. Key Responsibilities Reporting to the Credit Control Manager, the Credit Control Assistant will be responsible for ensuring monies are recovered from customers who do not pay within payment terms. Contact late paying customers by telephone, letter and email in order to recover outstanding payments Negotiation with late paying customers in order to bring their account up to date Highlighting bad debt to the Credit Control Lead to be escalated for further action Negotiate and confirm payment plans with customers and follow up on incoming payments. Liaise with the Sales and Account Management teams to obtain their full support in the proactive management of bad debts Calculating customer deposits and processing refunds when appropriate Process domestic credit checks Administer small claims court submissions Administration of customer isolations in line with company procedure Any other duties as directed by the Credit Control Lead/Credit Control Manager Skills, Knowledge and Expertise Qualifications / Experience The successful candidate will demonstrate previous experience in a pressurised customer facing environment and possess extensive knowledge of credit control processes and procedures. Essential Minimum of 5 GCSEs at Grade C or above (or equivalent) including English & Maths Experience in working in a pressurised customer facing environment Previous experience within a credit control/customer billing operation The ability to prioritise workload and work on own initiative Excellent communication skills both written and verbal Excellent IT skills including MS Excel and Word Desirable 2 years demonstrated experience in a Credit Control role We aim to hold interviews week commencing Monday 20th April 2026. Benefits Competitive Salary Bonus Hybrid working Enhanced Annual Leave Enhanced pension plan Life assurance Group income protection Enhanced maternity benefits Enhanced sick pay Long Service Awards Career Progression Recognition programs Dedicated development opportunities Training and upskilling support On-Site Facilities Free on-site parking Electric car charging points Secure office space Coffee and breakfast station Firmus Energy Supply is an Equal Opportunities Employer