Senior / Principal Mechanical Engineer

Company: Arup
Apply for the Senior / Principal Mechanical Engineer
Location: London
Job Description:

Overview

In this role you will lead the design and delivery of advanced mechanical and HVAC solutions for SIT projects in critical environments. You’ll guide model-based design and simulations, ensuring high performance and efficiency, while mentoring junior engineers. The position blends technical leadership with client-facing collaboration and project oversight to meet strategic objectives. You join a values-driven, inclusive culture at Arup, contributing to impactful, sustainable infrastructure globally.

Pay / Benefits

  • Profit Share
  • Private medical insurance
  • Life assurance
  • Income protection
  • Flexible benefits
  • Learning opportunities

Responsibilities

  • Lead development of detailed design models and simulations for mechanical and HVAC systems
  • Design complex mechanical systems for critical environments with a focus on cooling performance
  • Develop innovative HVAC solutions leveraging cutting-edge technologies
  • Manage project activities to align with strategic and commercial goals
  • Provide guidance and mentorship to junior engineers
  • Represent the team in internal and client-facing meetings with technical insights
  • Oversee designated segments of design projects ensuring quality and precision
  • Coordinate work with other disciplines and in-house specialists

Key requirements

  • Chartered Engineer in Building Services or within 6–12 months of achieving it (CIBSE / IMechE)
  • Significant consulting experience in Mechanical Engineering
  • Experience across design and construction stages including cooling, PUE/WUE, resilience/TIER, testing/commissioning
  • Proficiency with design and energy modelling tools
  • Experience leading Mechanical Engineering solutions across multiple projects (calculations, models, reports, drawings, specs)
  • Supervising and coordinating multidisciplinary teams
  • leadership
  • mentorship
  • client-facing communication
  • HVAC design for critical environments
  • energy modelling
  • design modelling software

…

Posted: October 17th, 2026