Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Process payments, create invoices, and assist with customer queries in a dynamic team.
- Company: Join Dŵr Cymru Welsh Water, a company dedicated to providing essential services.
- Benefits: Enjoy 33 days annual leave, competitive salary, and great employee perks.
- Why this job: Make a real impact while developing your skills in a supportive environment.
- Qualifications: Experience with SAP and a passion for customer service are key.
- Other info: Diverse workplace culture that values every voice and offers growth opportunities.
The predicted salary is between 30000 - 42000 £ per year.
City: Cardiff
Address: Cardiff, Wales, GB, CF3 OLT
Job Requisition Number: 8314
Work Type: Permanent
Job Function: Commercial/Sales
Closing Date: 23:59 on 03/02/2026
What you’ll be responsible for:
- Accurate processing of payments for all developer services (DS) sections.
- Online and telephone payment invoice reconciliation.
- Interface with PPU re BACS payments.
- Creation of billing documents (Invoices, quotes, and credit notes etc).
- Creation of SAP codes.
- Processing of refunds to customers as directed.
- Coordinate and monitor the Developer Services time charging process.
- Preparing and submitting a weekly DS timesheet log.
- Preparing timesheet data in the required format to finance on a weekly basis to be uploaded on SAP.
- Assisting with the recovery of outstanding developer services debt.
- Rebooking applications through our BPM system.
- Responding to day-to-day queries received via the DS revenue inbox and via teams.
Who you’ll work with:
Internal:
- The Developer Services commercial team and other members within Developer Services
- Accounts payable Department
- DCWW’s Finance Department
- DCWW’S PPU Department
External:
- Developers
- Suppliers and delivery partners
- Local Authorities
- Individual home and business owners
About you:
- Experience of using SAP, bespoke finance, and other IT systems
- Ability to show initiative with the need to work within deadlines
- Ability to work independently and collaboratively in a multi-disciplined team
- Enthusiastic about putting our customers first every day
- Commercially and financially astute
- Appreciation of customer and stakeholder relationships
Good to know:
For more information on the role please contact Abdul.Moghal@dwrcymru.com
As well as a market competitive salary, 33 days annual leave (pro rata, including public holidays), we offer a range of employee benefits and rewards including:
- Variable pay schemes (your salary band will remain the same, but performance depending, you could receive an incremental within-band increase and a yearly incentive)
- Option to buy additional annual leave up to 5 days per year
- Enhanced employer pension contributions – Up to 11% employer contributions
- Free Mortgage Brokering Services
- Enhanced family friendly policies
- Progression opportunities, including the ability to apply for funded training and coaching and mentoring programmes
- Gym and fitness discounts as well as high street shopping
- Cycle to work scheme
- Discount off all Welsh Water visitor attraction centres and gift shops
- Car‑leasing scheme and free on‑site parking at all sites
- Health CashBack scheme and access to an online GP service
- An employee assistance programme for employees and their immediate family
- Many more can be found on our website.
Due to the nature of the industry, we require satisfactory references, post offer medical clearance, and a criminal records Basic Disclosure check on all new employees joining the business. For some roles there may be additional checks and security clearance required, and this offer is subject to all checks being satisfied. You will receive further information on how to complete these checks via email once you have accepted this offer.
Who we are:
Dŵr Cymru Welsh Water keep 3 million people healthy each day with safe, reliable water, and take away wastewater to clean, before returning it safely to our beautiful rivers and seas. To be able to deliver high quality, essential services which help to protect the health of our customers, colleagues and our environment, we need the right people to deliver on our vision. This is achieved by living our core values and demonstrating the core behaviours that underpin them. The security of our people, assets and information is key to us, so we are looking for people who understand and comply with the company’s required security objectives.
We know that the most successful teams are the most diverse teams. Equality, diversity and inclusion provide the very foundation to our culture at Welsh Water. We want every individual to feel confident, proud and able to bring their whole selves to work. To ensure an improved representation in our workforce, applications are particularly welcome from minority groups including Black, Asian and Minority Ethnic people, Females, LGBT+, Non‑binary and people with disabilities. Together we continue to build a workplace that not only celebrates the diverse voices of our colleagues but also represents each customer we serve. In essence, ours is a company based on trust, openness, respect, commitment and honesty. A company that our colleagues are proud to work for.
Dŵr Cymru Cyf, a limited company registered in Wales No. 2366777. Registered office: Linea, Fortran Road, St. Mellons, Cardiff CF3 0LT.
Commercial Assistant in Cardiff employer: Dwr Cymru Welsh Water
Contact Detail:
Dwr Cymru Welsh Water Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Commercial Assistant in Cardiff
✨Tip Number 1
Get to know the company! Research Dŵr Cymru Welsh Water and understand their values and mission. This will help you tailor your conversations during interviews and show that you're genuinely interested in being part of their team.
✨Tip Number 2
Network like a pro! Connect with current employees on LinkedIn or attend industry events. Building relationships can give you insider info about the role and might even lead to a referral, which can boost your chances of landing the job.
✨Tip Number 3
Prepare for the interview by practising common questions related to the Commercial Assistant role. Think about how your skills with SAP and customer service can shine through. We want you to feel confident and ready to impress!
✨Tip Number 4
Don’t forget to follow up after your interview! A quick thank-you email can leave a lasting impression and shows your enthusiasm for the position. Plus, it keeps you on their radar as they make their decision.
We think you need these skills to ace Commercial Assistant in Cardiff
Some tips for your application 🫡
Tailor Your Application: Make sure to customise your CV and cover letter for the Commercial Assistant role. Highlight your experience with SAP and any relevant finance systems, as well as your ability to work both independently and in a team. We want to see how you fit into our vision!
Show Off Your Skills: Don’t just list your skills; give us examples of how you've used them in past roles. Whether it’s processing payments or handling customer queries, we love seeing real-life applications of your abilities. This helps us understand how you can contribute to our team.
Be Clear and Concise: When writing your application, keep it straightforward. Use clear language and avoid jargon unless it’s relevant to the role. We appreciate a well-structured application that gets straight to the point—this shows us you can communicate effectively!
Apply Through Our Website: We encourage you to submit your application through our website. It’s the best way to ensure your application is seen by the right people. Plus, you’ll find all the details about the role and our company culture there!
How to prepare for a job interview at Dwr Cymru Welsh Water
✨Know Your SAP Inside Out
Since the role of a Commercial Assistant involves using SAP, make sure you brush up on your knowledge of the system. Familiarise yourself with how to create billing documents and process payments. Being able to discuss your experience with SAP confidently will show that you're ready to hit the ground running.
✨Show Off Your Customer Service Skills
This position is all about putting customers first, so be prepared to share examples of how you've successfully handled customer queries in the past. Think of specific situations where you went above and beyond to resolve an issue or improve a customer's experience. This will demonstrate your enthusiasm for customer service.
✨Be Ready to Talk Numbers
As a Commercial Assistant, you'll need to be commercially astute. Brush up on your financial knowledge and be ready to discuss how you've managed budgets or reconciled invoices in previous roles. Showing that you understand the financial side of things will impress the interviewers.
✨Prepare for Teamwork Questions
You'll be working closely with various teams, so expect questions about collaboration. Think of examples where you've worked effectively in a team setting, especially in a multi-disciplined environment. Highlight your ability to work independently as well, as this role requires a balance of both.
