We’re on the lookout for… 

An experienced Billing Analyst

You will play a pivotal role in reaching our aspirations to provide a world class and market leading experience to our growing customer base. You will support our customers through every step of their journey to save money, time and our planet. We don’t accept anything in half measures, average or great. 

We have an incredibly exciting opportunity to join an amazing business which is scaling rapidly where customers and our people are at the heart of everything we do. Recent investments have enabled us to build a platform for significant growth. 

It’s a chance to be part of a growing, friendly team trying to make a positive difference fighting the climate emergency. 

What’s in it for you?  

Diversity: We actively look to reflect the variety of our world and welcome the widest diversity of applicants – it’s only your talent and experience that matters. 

Permanent: We’re a growing SME and see this role as a permanent member of our growing team. We’ve got lots of plans up our sleeves for exciting new things!  

Working Hours: We’re looking for about 40 hours a week for this role – what would generally be called Full Time. How that breaks into days or a working pattern will be agreed with your line manager, we are very flexible but we must make sure that our customers are always receiving the best service.    

Working Times: Our core hours are dictated by our service hours which are 08:30 until 17:30, Monday to Friday. Outside of these times we offer emergency service, you maybe be required to support with emergency service cover, this will be agreed in advance with your line manager. 

Location: We’d like to see you in our Cardiff city centre offices often enough for you to be able to do the job effectively, integrate our ethos and work with the team. But otherwise, we’re focused on you doing the work, not where you choose to do it. We’re fully set up for virtual working! 

Salary: We’ll be competitive (of course) so we’re budgeting around £24,000 per annum depending on experience. This also depends on what we agree between us your preferred weekly total hours. 

Perks: You’re helping save the planet! 

Also, 6% pension contribution from us; healthcare with family & dental options; electric vehicle scheme; equity scheme; cycle to work scheme; training & development support of course; office fruit bowl & refreshments! 

What we’re after 

As part of the Customer Operations team, we want team players who’ll integrate well, pitch in to help others as needed, and make being at work at least something approaching fun from time to time.  

We’re a small but growing business, and you’ll need to be self-motivated, completely trustworthy, able to manage your own delivery to hit milestones and have a passion for solving problems. 

On odd occasions you may have to deal with complaints, we are all human and sometimes things do go wrong, after all we are pioneers in what we do (don’t worry there is always someone on hand to support). 

You’ll be flying the flag for us to partners, so being personable and a good communicator will be important.  

Being a bit “eco” definitely isn’t going to hurt either! 

What we’ll be asking you to do 

You will be responsible for ensuring all our customers receive accurate and on time billing statements. 

  • Collating smart meter data from internal or external sources 
  • Analyse and review monthly smart meter data and resolving discrepancies with the partner supplier/s 
  • Reviewing and approving invoices generated by the billing system 
  • Calculation of manual invoicing where applicable  
  • General administration of the CRM, ensuring customer and technical data are accurate 
  • Administration of payments, ensuring the billing system is kept up to date 
  • Reviewing payment plans and ensuring customer Direct Debits are updated in a timely manner 
  • Working alongside the Sero Life team to ensure any billing or payment queries are resolved in a timely manner 
  • Processing change of tenancies with our partner supplier/s 
  • From time to time, you may be asked to give a helping hand to our Sero Life team and support our customers during busy times via phone, email and chat. After all we are one team. 

 What about skills & qualifications? 

Energy industry experience is a must, you will be working with smart meter data, tariffs and invoicing so you need to be comfortable with all three. 

You will need to have strong IT and numerical skills and be confident using advanced formulas in Microsoft Excel.   

You need to be confident with large data sets and numbers and have strong attention to detail to be able to spot errors or trends in data.   

We are looking for someone who loves to really muck in to help get things organised so that we don’t miss a trick for our customers 

We’re building some cool systems so the skill to challenge or suggest improvement ideas will be critical. You’ll need to be comfortable with change as we’re working on some truly innovative projects. 

Who are we? 

Sero was founded to make a connection between homes and energy, and to use technology to make both these easier and smarter together. We do this to save our customers money and to save them time, but we also do it to save our planet. 

To tackle the Climate Emergency, we provide clever energy services that automatically reduces the carbon footprint of the homes we run. To do this, we work with other home builders and landlords to help them understand what to do with their buildings to achieve this. 

We also try and lead by example, so through our sister company Sero Homes we build true zero carbon homes, set in ecologically vibrant spaces and places (there’s a and Biodiversity Crisis too!), so that our homes help to build a community. 


If you think we’re a match, please get in touch! 

We’d like a C.V., but send it with a covering note too please that tells us why you’d be our perfect fit for our team.  

Your note can be a letter, email, video snippet, go crazy, give us a little bit of your character…