Rejobs
SmartestEnergy

Billing & Supplier Executive 12 month FTC

Join SmartestEnergy in Worthing as a Billing & Supplier Executive on a 12-month FTC. Manage accurate billing and supplier data within the UK electricity industry. Benefit from flexible hybrid working and a diverse, globally minded team focused on innovation and sustainability.

SmartestEnergy

Company Overview

SmartestEnergy Limited, a wholly owned subsidiary of Marubeni Corporation

London, United Kingdom

2000

Approximately 400 employees (source: zoominfo.com). Revenue estimated at $99.5 million in 2023 (source: zoominfo.com).

What They Do

SmartestEnergy specializes in renewable electricity wholesale, retail, trading, and production, focusing on flexibility-backed models and independent renewable generation aggregation. The company offers a range of products and services, including 100% renewable supply contracts tailored for large commercial and industrial businesses, as well as small and medium enterprises (SMEs) through its SmartestEnergy Business division. Their target markets include B2B clients in the UK, US, and Australia, with a strong emphasis on helping firms transition to net zero. SmartestEnergy differentiates itself through its asset-light approach, leveraging Marubeni Corporation's financial stability and expertise in renewable procurement risks and opportunities (source: smartestenergy.com).

Projects & Track Record

While specific project details such as named developments or capacities are not extensively documented, SmartestEnergy has established itself as a leading independent renewable purchaser in the UK. The company has received accolades such as the UK Energy Supplier of the Year awards in 2012 and 2018, and it was the first to launch a certified 100% renewable product for commercial and industrial clients in 2015. Their ongoing efforts focus on expanding their market presence and enhancing their origination capabilities, particularly in the US and Australian markets (source: smartestenergy.com).

Recent Developments

In 2023, SmartestEnergy launched a new brand identity and extended its renewable product accreditation to UK SMEs, marking a significant step in its growth strategy. The company also expanded into the New England ISO market and achieved the top ranking in customer satisfaction for small suppliers according to a DNV survey. Additionally, the workforce grew by 24% with the addition of 21 new employees, particularly in origination roles, reflecting the company's commitment to enhancing its capabilities in the renewable energy sector (source: smartestenergy.com).

Working There

SmartestEnergy offers a dynamic work environment with roles spanning trading, origination, commercial, sales, and operations. The company has multiple office locations across the UK, including its headquarters in Canary Wharf, London, and additional offices in Ipswich, Worthing, Manchester, and Glasgow. The culture emphasizes collaboration and transparency, supported by Marubeni's backing, which provides long-term stability. Employees benefit from networking opportunities and initiatives such as the Women Utilities Network, although specific benefits are not detailed in available sources (source: smartestenergy.com).


Last updated on 2026-02-23 | Report an issue

Join our Electricity Industry Operations team and play a vital role in ensuring customers are billed accurately and on time, every time. As part of a close-knit, collaborative team, you'll be responsible for managing industry flows and processes in line with KPIs, maintaining accurate billing records, and ensuring customer supply details are up to date in accordance with industry guidelines. This is a great opportunity for someone who thrives in a detail-focused environment and takes pride in delivering high standards of accuracy and service.

In this role, you'll analyse billing data to identify trends and discrepancies, investigate and resolve issues in partnership with internal teams and external stakeholders, and contribute to continuous process improvements. Strong problem-solving skills, relationship-building abilities, and a proactive approach will be key to success, as you help drive performance, meet SLAs, and support the wider team in achieving shared operational goals within the UK energy industry.

What skills/experience do I need to be successful?

  • Work experience in similar position previously with transferable skill;
  • You should have experience working in an office environment;
  • Worked with computers and can demonstrate a strong level of computer literacy;
  • Strong organisational skills;
  • Acute eye for detail ensuring all work is performed with the highest levels of accuracy and all required forms of due diligence are upheld.

What sets us apart?

  • Global Impact: With offices in the UK, US, and Australia, and plans for further expansion, you'll be part of a dynamic, globally-minded team, with opportunities to explore new markets and make a difference on a global scale.
  • Flexible Working: Embrace the freedom to work from anywhere in the world for up to 30 days a year. We prioritize work-life balance, recognizing that your well-being matters. Find out more here.
  • Commitment to Diversity and Inclusion: We celebrate our diverse culture and value individuals irrespective of background, disability, religion, gender identity, sexuality, or ethnicity. Join a team where diversity is not just welcomed but celebrated as a key driver of growth and innovation.

What does hybrid working mean to us?

Hybrid working typically means 2 days in the office location listed on this advert and 3 days working at home each week. Some occasional travel to our other offices may be required.

What happens next?

Once we receive your application, it will be reviewed by a human - no bots here! The average process typically takes around 2-3 weeks, with 2 stages of video interviews using Teams. However, this can vary depending on the role. We may invite you for a face-to-face meeting or require only 1 video interview. If you have any questions or need support, our Recruitment Team is here to assist you.

Ready to join us on our journey to digitise, decarbonise, and localize the future of energy? Apply now.

We're committed to making the application process easy and comfortable. Let us know how we can help you with any reasonable adjustments that can be tailored to your needs. At the bottom of each of our adverts you can find one of our recruitment teams' contact details. Please reach out so we can discuss with you further.

Apply now

Job expired?

Please let SmartestEnergy know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!

About the role

March 6, 2026

Full time

Company

March 6, 2026

Hybrid

Energy Storage

SmartestEnergy

smartestenergy.com

  •  Worthing, United Kingdom

Previous work experience in a similar position

UTC+00:00

Similar jobs near Worthing, United Kingdom