Project Engineer - Mechanical

ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing in our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable development, and find solutions to the biggest global challenges including climate change, overpopulation, and water scarcity? Come and join us in building the infrastructure our planet needs to achieve a sustainable future.

We are seeking a detail-oriented Mechanical Engineer to join our team and support the design, pre-construction, and project controls functions for a major Water infrastructure project. This is a fantastic opportunity to play a key role in translating engineering designs into clear, actionable construction work packages that ensure safe, efficient, and high-quality execution on site at the Thames Water plant at Coppermills in London E17.

Job Description

We are seeking a detail-oriented Mechanical Engineer to join our team and support the design, pre-construction, and project controls functions for a major Water infrastructure project. This is a fantastic opportunity to play a key role in translating engineering designs into clear, actionable construction work packages that ensure safe, efficient, and high-quality execution on site at the Thames Water plant at Coppermills in London E17.

Key Responsibilities

Technical Work Package Development

• Prepare detailed Bills of Quantities (BOQs), scope of work narratives, and quantity take-offs.
• Lead scope reviews to ensure all technical details are captured for execution.
• Produce and oversee technical documentation to support pre-construction planning.
  
  

Construction Planning & Methodology

• Develop construction execution plans and work sequences.
• Provide constructability feedback and identify potential clashes or logistical challenges.
• Communicate technical plans across design, engineering, and contractor teams.
  
  

Cost & Scope Definition

• Support procurement with detailed technical input during the tender process.
• Ensure pricing aligns with work package requirements.
• Maintain documentation of pricing assumptions and prepare scope clarifications.
  
  

Essential Requirements

Required Skills and Competencies

Candidates must meet all of the following criteria to be considered:

• Degree in Mechanical Engineering or equivalent qualification.
• Minimum 4 years’ experience in mechanical engineering on large-scale projects.
• Proven experience preparing technical construction documents (SOWs, BOQs).
• Strong understanding of construction methods and constructability principles.
• Ability to interpret complex engineering drawings.
• Excellent numerical, analytical, and written communication skills.
  
  

As a company that values diversity as a source of talent, we work to foster an inclusive environment that promotes respect, belonging and engagement so that all people can participate on an equal opportunity basis. We invite everyone to apply regardless of origin, circumstances, background or condition.