FMS (Flexibility Market System) Functional Specialist

 
Vacancy Number:  28375
Category:  IT - Application Design, Development & Support
Job Type:  Full-time
 

Position Description 

The DMSO Business Operations Integrity Hub team is seeking to fill the role of Flexibility Market System (FMS) Functional Specialist. The purpose of the role is to work directly on the implementation and delivery of the Flexibility Market System.

 

The Flexibility Market System (FMS) is a core enabler for ESB Networks’ transition to a high-renewable, low-carbon electricity system. It will allow ESB Networks to manage, dispatch, and settle flexibility from Distributed Energy Resources (DER)—including demand response, storage, and distributed generation—to support system security, manage network constraints, and defer traditional reinforcement. The FMS will underpin the achievement of Ireland’s Climate Action Plan targets by enabling 15–20% flexibility and associated carbon abatement, improving customer outcomes, and enhancing operational resilience across planning, real-time, and restoration horizons.

 

The Flexibility Market System Functional Specialist will be part of the Business Operations Integrity Hub team reporting to the FMS Delivery Lead. Primarily, the role will support the implementation of the Flexibility Market System from Design phase to Go-Live; the role will also continue as subject matter expert through the Hypercare period to actively support DMSO with future engagement with the FMS Vendor through the FMS product lifecycle and catering for new DMSO Flexibility products

 

Key Responsibilities 

  • Participating in FMS Detailed Design workshops with FMS Vendor and Stakeholders
  • Ensure design requirements cater for all flexibility business processes
  • Develop functional specification documents with FMS Vendor ensuring that localised flexibility market rules and processes are catered for through the design of the solution
  • Develop/Update required business process maps as and when needed to support FMS project
  • Assist with integration plans with relevant systems to support flexibility market operations
  • Support FMS Project Test Phases including System Integration Testing and User Acceptance Testing
  • Support Training coordination with DMSO Stakeholders
  • Assist with Data Migration to new FMS solution
  • Assist with planning post-implementation vendor engagement, including service transition, SLAs, and continuous improvement.
  • Develop flexibility services knowledge base and understanding of flexibility market operations to support the FMS post-implementation
  • Support FMS solution post go live during hypercare period

 

Experience and Qualifications

Essential

  • 5+ years’ relevant work experience
  • A primary degree in IT / Engineering / Business or related discipline or equivalent relevant work experience.
  • Excellent interpersonal skills and ability to work with cross functional teams  
  • Excellent stakeholder engagement, communication, and governance/reporting skills.
  • Excellent IT Skills (MS Word, MS Excel)
  • Understanding of IT systems

 

Desirable

  • Understanding and/or experience of procurement and operation of Flexibility services
  • Experience with Flexibility platforms
  • Understanding of the Distribution electrical grid model
  • Experience with SAP-ISU, SAP ERP(ARM/IWM) and/or SAP SRM
  • Experience with OT systems (NMS / GIS)
  • Experience with MS Visio
  • Experience with MS Office and project management/tooling (e.g., schedules, RAID, dashboards).

 

Location

This position will be based in Finglas

 

Smart Working at ESB is designed to make ‘in-person’ time together as purposeful as possible while also enabling the effective use of digital tools and hybrid arrangements to preserve our commitment to flexibility. The successful  candidate may work flexibly within the  jurisdiction where they have been employed, with attendance at the workplace for in-person collaboration at least two days per week. All Smart Working arrangements are subject to regular review based on the operational requirements of the role, the team, and the business.

 

Reporting To

Flexibility Market System Delivery Lead, Business Operations Integrity Hub, Distribution Markets & System Operation 

 

Why Work with Us?

  • Opportunity to lead Ireland’s transition to net zero carbon future
  • Career development through mentoring and training 
  • Corporate Social Responsibility Opportunities
  • Sports and Social Clubs
  • Networking opportunities
  • Credit Union
  • Generous Pension
  • Access to staff well-being programmes
  • Generous parental leave entitlements
  • Strong values-based and inclusive culture
  • Strong commitment to diversity, equity and inclusion
  • Great team environment working to our Core Values: Courageous, Caring, Driven and Trusted

 

Salary

€59,000 -  €70,000 per annum.


Closing Date

12th of May, 2026

 

Your application will be held in reserve for 6 months should you be suitable for the role.

Diversity, Equity and Inclusion Statement

ESB is committed to being an equal opportunities employer. We welcome applications from all sections of society and ensure that no one is discriminated against on the grounds of race, religion or belief, ethnicity or nationality, disability, age, citizenship, marital status, domestic or civil partnership status, sexual orientation or gender identity, or any other basis as protected by law. 

Applicants who anticipate requiring assistance or reasonable accommodations for any part of the application or interview process may contact, in confidence, recruitment@esb.ie.  

About ESB

Join us in our mission to achieve a net-zero electricity system by 2040. ESB is Ireland’s leading energy utility, with activities spanning electricity generation, transmission and distribution, energy supply, energy services and international consultancy. Operating in Ireland, Northern Ireland and Great Britain, we invest over €1 billion each year to deliver a new energy future based on reliable, affordable zero-carbon electricity.