Head of Joint Design Office

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Empowering Talent Strategies through Technology

Head of Joint Design Office – Sizewell C

(Salary highly competitive – package negotiable for the right candidate)

Reports to: SZC Technical Director

Purpose

Lead the creation and operation of the Joint Design Office (JDO) at Sizewell C, delivering site-based engineering support for construction and commissioning. Ensure all work meets safety, quality, time, and cost targets, while building and leading a high-performing, multi-disciplinary team.

Key Responsibilities

  • Develop and implement the JDO strategy and operating model, applying lessons from HPC and other EPR projects.
  • Lead and manage a multi-disciplinary team (>100 FTE) from SZC, Responsible Designers, and supply chain partners.
  • Oversee technical delivery, resolving engineering issues across design, procurement, construction, and commissioning.
  • Monitor progress against milestones, budget (£350m EAC) and risks (~£100m), reporting to stakeholders.
  • Maintain and approve nuclear safety case standards, ensuring compliance with UK regulatory requirements.
  • Act as Intelligent Customer for design modifications and external technical work.
  • Represent the Technical Director in delegated meetings and decisions (financial authority up to £500k).
  • Degree in engineering or science discipline.
  • Extensive nuclear industry experience (PWR preferred) in senior leadership roles.
  • Proven record managing large-scale, safety-critical projects.
  • Strong understanding of safety cases, UK regulatory environment, and technical standards.
  • Excellent leadership, communication, and stakeholder management skills.
  • Experience with budget control, cost management, and commercial decision-making.

Key Behaviours

  • Humility: Value diverse perspectives, open to debate and collaboration.
  • Positivity: Challenge constructively, promote solutions, encourage innovation.
  • Respect: Uphold rules, embrace new ideas, and give/receive feedback well.
  • Solidarity: Foster a one-team culture with shared responsibility.
  • Clarity: Communicate clearly, promote alignment, and enable fast decisions.

Health, Safety & Sustainability

Promote a culture of safety, wellbeing, and environmental responsibility. Ensure all activities meet legal, regulatory, and company HSE standards.

Seniority level

  • Director

Employment type

  • Full-time

Job function

  • Design, Engineering, and Strategy/Planning

Industries

  • Construction, Services for Renewable Energy, and Energy Technology
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Company: Mactech Energy Group
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Join to apply for the Head of Joint Design Office role at Mactech Energy Group.

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Direct message the job poster from Mactech Energy Group.

Empowering Talent Strategies through Technology

Head of Joint Design Office – Sizewell C

(Salary highly competitive – package negotiable for the right candidate)

Reports to: SZC Technical Director

Purpose

Lead the creation and operation of the Joint Design Office (JDO) at Sizewell C, delivering site-based engineering support for construction and commissioning. Ensure all work meets safety, quality, time, and cost targets, while building and leading a high-performing, multi-disciplinary team.

Key Responsibilities

  • Develop and implement the JDO strategy and operating model, applying lessons from HPC and other EPR projects.
  • Lead and manage a multi-disciplinary team (>100 FTE) from SZC, Responsible Designers, and supply chain partners.
  • Oversee technical delivery, resolving engineering issues across design, procurement, construction, and commissioning.
  • Monitor progress against milestones, budget (£350m EAC) and risks (~£100m), reporting to stakeholders.
  • Maintain and approve nuclear safety case standards, ensuring compliance with UK regulatory requirements.
  • Act as Intelligent Customer for design modifications and external technical work.
  • Represent the Technical Director in delegated meetings and decisions (financial authority up to £500k).
  • Degree in engineering or science discipline.
  • Extensive nuclear industry experience (PWR preferred) in senior leadership roles.
  • Proven record managing large-scale, safety-critical projects.
  • Strong understanding of safety cases, UK regulatory environment, and technical standards.
  • Excellent leadership, communication, and stakeholder management skills.
  • Experience with budget control, cost management, and commercial decision-making.

Key Behaviours

  • Humility: Value diverse perspectives, open to debate and collaboration.
  • Positivity: Challenge constructively, promote solutions, encourage innovation.
  • Respect: Uphold rules, embrace new ideas, and give/receive feedback well.
  • Solidarity: Foster a one-team culture with shared responsibility.
  • Clarity: Communicate clearly, promote alignment, and enable fast decisions.

Health, Safety & Sustainability

Promote a culture of safety, wellbeing, and environmental responsibility. Ensure all activities meet legal, regulatory, and company HSE standards.

Seniority level

  • Director

Employment type

  • Full-time

Job function

  • Design, Engineering, and Strategy/Planning

Industries

  • Construction, Services for Renewable Energy, and Energy Technology

#J-18808-Ljbffr…

Posted: May 20th, 2026