About The Position

Omnia Projects Ltd is a leading provider of technical integration and project management services to major infrastructure clients. We are seeking a Technical Interface Manager to integrate directly within National Grid’s project organisation, supporting the Sizewell C New Substation build. The Integration Project Manager will focus on engineering integration and interface management across multiple Tier 1 contractors, OEMs, designers, and delivery partners. Acting as a client-side integrator, the role provides structured oversight of design and engineering interfaces to ensure alignment of technical deliverables, programme logic, and assurance requirements. The objective is to facilitate a coordinated and buildable design development process, supporting National Grid in maintaining control of cross-discipline dependencies and reducing the risk of late-stage design conflicts, rework, or programme disruption. The service is intended to strengthen technical cohesion across the project, ensuring a coordinated, and programme-aligned design prior to transition into construction.

Requirements

  • Relevant degree in Engineering or a Project Management Discipline.
  • Extensive experience in technical integration and interface management within major infrastructure projects.
  • Proven ability to manage cross-discipline design coordination and resolve technical queries in complex delivery environments.
  • Strong communication, facilitation, and stakeholder management skills.

Nice To Haves

  • Familiarity with National Grid standards and governance processes is highly desirable.

Responsibilities

  • Use and comply with procedures, business systems and data/asset systems.
  • Act as client-side Technical Interface Lead within project team, embedding into NG governance and reporting structures.
  • Identify and manage key engineering interfaces between engineering disciplines and grid connection works.
  • Facilitate interface workshops and design coordination meetings across supply chain partners.
  • Review contractor design programmes to verify logic alignment across disciplines and critical-path dependencies.
  • Support the management of technical queries (TQs), RFIs, and design change processes to ensure timely resolution.
  • Review the engineering deliverables in view of the NG technical specifications, standards, and stage-gate requirements.
  • Coordinate the management of design risks and opportunities, ensuring integration with the Project Risk Register.
  • Provide concise reporting to the Project leadership on interface status, emerging risks, and required interventions.
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