MHHS Data Account Manager
Cardiff | Full-time, Permanent | Hybrid available, Monday to Friday
Salary: up to £45,000 DOE + £3,600 annual car allowance
We are looking for an experienced Data Account Manager to join our growing team in Cardiff.
The
MHHS Data Account Manager
is responsible for ensuring the successful execution of a customer's migration from legacy settlement into Market Wide Half-Hourly Settlement services and ensuring performance post migration.
This is a full-time, permanent position where you will be responsible for managing customer portfolios, leading migration projects, and ensuring excellent service delivery across the data and energy services sector.
The Market Wide Half-Hourly Settlement Data Account Manager will play a key role in overseeing customer transitions to half-hourly settlement services, maintaining long-term performance, and building strong relationships with both clients and internal operational teams.
Key Responsibilities
As a
Market Wide Half-Hourly Settlement Data Account Manager
, your duties will include:
• Managing the end-to-end customer migration process into half-hourly settlement services, ensuring accuracy, compliance, and efficiency.
• Overseeing the ongoing performance of customer portfolios after migration, ensuring contractual obligations and service levels are consistently achieved.
• Acting as the primary point of contact for clients, suppliers, and industry representatives, building trusted long-term partnerships.
• Investigating escalated customer issues, implementing solutions, and feeding back improvements to operational teams.
• Preparing clear reporting for senior management on contract performance, risks, and opportunities.
• Supporting continuous improvement initiatives, including process reviews and data quality management.
• Leading contract onboarding activities, ensuring operational readiness and alignment with business objectives.
• Representing the business at client meetings, presentations, and knowledge-sharing sessions.
• Delivering structured performance reviews with clients and internal stakeholders, identifying risks and opportunities for improvement.
• Driving efficiency and cost savings through effective management of contract novation and related processes.
To succeed as MHHS Data Account Manager, you will need:
• Proven experience in account management or a customer-facing role, ideally within data services, utilities, or the energy industry.
• Strong organisational and analytical skills, with the ability to prioritise effectively and manage multiple projects.
• Excellent communication and relationship-building skills with both technical and non-technical stakeholders.
• Proficiency in Microsoft Office (Excel and PowerPoint essential).
• Knowledge of energy industry processes, settlement, or metering (desirable but not essential).
• A proactive and adaptable mindset, with a strong focus on problem solving and continuous improvement.
What's on offer:
·Home-based working with regular travel across the South East.
·The opportunity to play a leading role in a high-profile, 20-year infrastructure programme.
·A senior position with scope to influence commercial best practice in a growing sector.
·25 personal holiday days per year (with additional 8 public holidays) increasing to 30 personal days after 5 years of service (includes options to buy and sell)
·Enhanced Maternity leave. Paternity and Adoption leave.
·Automatic enrolment into an Employee Ownership Scheme.
·24/7 free and confidential employee assistance service.
·Medicash health plan offers a wide variety of benefits from cashback on everyday healthcare treatments like optical, dental and physio treatments. Discounted gym memberships and free 24/7 online GP.
·Life Insurance (4 x annual salary)
·Pension matching scheme (up to 5% of salary)
·Developing our people is important to us - we support and encourage development by offering internal and external accredited courses, secondments and study support.