
Location: Kings Hill / Hybrid
Salary/package: £25,949 - £29,614 per annum (DOE)
Contract type: Permanent
Hours: Full time, 37 hours per week
As a Customer Service Coordinator, you will play a key role in supporting customers throughout the full energy contract journey, from initial submission through to live supply. Working within Lumina Energy, you will help ensure a smooth, accurate and responsive service for both customers and suppliers.
Lumina Energy is a UK-based energy consultancy founded in 2012 and part of the Commercial Services Group, which is owned by Kent County Council. The company specialises in helping businesses manage their energy needs by offering services like energy procurement, usage data management, and carbon reduction planning. They are particularly focused on assisting companies in becoming more energy-efficient, reducing costs, and working towards sustainability goals.
You will play a key role in delivering a high-quality customer experience, ensuring energy contracts are processed accurately and customer queries are resolved efficiently.
This is a role where organisation and attention to detail are essential, with responsibility for managing customer journeys, supplier interactions and accurate data handling.
Managing customer queries and resolving issues with suppliers and third parties.
Supporting Change of Tenancy requests to ensure smooth transitions.
Processing contracts and monitoring progress through to live status.
Confirming contract updates and keeping customers informed.
Coordinating meter installs, upgrades and removals with suppliers.
Completing credit checks and data validations to ensure accuracy.
Maintaining pricing information and supporting system updates.
Escalating and managing customer complaints where required.
Building strong working relationships with suppliers, customers and internal teams.
Proven experience in a customer service or administrative role.
Experience in the energy sector (desirable)
Strong organisational skills with excellent attention to detail.
The ability to manage multiple tasks and meet deadlines.
Excellent communication and relationship-building skills.
A proactive and solutions-focused approach.
Confidence working with data, systems and Microsoft Office.
Proficient use of Microsoft Excel.
Salary of £25,949 - £29,614 per annum
25 days annual leave, rising to 27 after 4 years.
Birthday Day Off.
One concessionary day during the Christmas period.
Pension scheme with 4% employer contribution.
Life assurance cover.
Access to Learning and Development opportunities via our CSG Academy.
Hybrid working.
CSG is the UK’s largest local authority-owned trading company (LATCO), generating over £800 million in revenue per annum and supporting more than 16,000 education and public sector customers globally.
We are growing through a combination of organic development, acquisitions and strategic partnerships. Our businesses deliver services across education, IT, HR, legal, energy, procurement and more, all focused on delivering meaningful impact.
As a locally owned organisation, we take pride in reinvesting a significant proportion of our profits into frontline services, helping strengthen the communities we serve.
We are committed to fostering a diverse and inclusive workplace where everyone feels valued and respected. We encourage applications from suitably qualified people of all backgrounds.
As a member of Inclusive Employers and a Working Families Employer, we are actively building an environment that supports inclusion, flexibility and belonging for all colleagues.
We are committed to providing reasonable adjustments throughout our application and interview process; please let us know if you require any.

Creating impact
As one the UK’s largest publicly owned, privately run organisations, Commercial Services Group offer the best of both worlds. Clear commercial expertise and a deep commitment to transparency, compliance and social value.
With over 90 years of experience, we work in partnership with public sector organisations to deliver tailored, impactful and sustainable services.
Commercial Services Group is dedicated to driving lasting social impact and empowering communities across the UK and internationally. We reinvest our profits directly into frontline services, delivering lasting value for future generations.
Our Divisions:
🏫Children & Education: Delivering everything needed to create the ideal learning environment, choose from over 24,000 products and comprehensive services including HR support, teacher training, recruitment, payroll and more.
🏆People & Talent: Our talent management solutions are designed to attract, retain, and develop the best talent in the industry. We offer a range of services from recruitment to professional development.
🌱Energy & Environment: We are at the forefront of sustainable energy solutions, helping organisations reduce their carbon footprint, embrace environmentally friendly practices and manage energy procurement effectively.
🤝Procurement & Partnerships: Our procurement services are tailored to meet the unique needs of our clients, ensuring efficient and cost-effective solutions through strategic partnerships.
Our purpose
Supporting the delivery of better public services to help people live, learn and thrive.
Our vision and mission
Creating value and impact for every customer, every day. By working collaboratively and commercially – driving innovation and service excellence.