Senior Tunnel Ventilation Engineer

Job Description Overview Take our vision into the future. You might know us for the great work we do across our wide variety of projects. We're proud to say it's thanks to our people's diversity of thought, expertise and knowledge. And when you join us, you'll be a part of this genuinely collaborative environment, where everyone's voice is valued and treated equally.

We're passionate about what we do, but we don't take ourselves too seriously. Simply put, this a great place to be. So, when it comes to your life outside of work, ask us about our flexible and remote working policies designed to help you get the most out of life.

We have an opportunity for a Senior Tunnel Ventilation Engineer located in our Epsom office, to support our impressive portfolio of projects both in the UK and internationally. We need to increase our team to meet the growing demands from our clients and are looking for someone with the drive and enthusiasm to embrace the future. We have the depth of knowledge and breadth of expertise to help you build a bright career in this exciting and rapidly evolving sector.

As one of the UK's leading geotechnical and tunnelling consultancies, AtkinsRéalis offers a comprehensive service in ground engineering. With more than 345 UK based ground engineering professionals, AtkinsRéalis' geotechnical and tunnelling reputation is built on the skills, excellence, and commitment of our people.

• Support winning and delivery of tunnel M&E ventilation projects.
• Strengthen and expand our presence in the UK Rail and Road sector.
• Act as a Technical Authority and client-facing engineer.
• Contribute to strategic growth, bids, and industry engagement.
• Project & Technical Delivery Lead/support the design and assessment of tunnel ventilation systems.
• Carry out 1D modelling (SES / IDA), CFD studies, risk assessment.
• Deliver fire and life safety assessments and ventilation strategies.
• Support commissioning, testing and asset performance reviews.
• Prepare high-quality technical reports and client deliverables.

• Support actively on growing the UK and International market.
• Develop and maintain strong relationships in the UK rail sector.
• Identify opportunities in rail ventilation and fire life safety projects.
• Support bid preparation and technical proposals.
• Represent the business in meetings, workshops, and industry events.

• Support mentoring of junior engineers.
• Contribute to improving processes, tools, methods, and best practice.
• Collaborate with senior leadership on growth strategy.

• Strong client relation with UK Rail tunnel operators.
• Strong experience in tunnel ventilation design and asset management projects.
• Proven use/knowledge of SES (rail ventilation modelling), IDA Tunnel (road / metro modelling) and CFD tools (e.g. FDS, Pyrosim, Pathfinder).
• Good understanding of Fire dynamics, smoke control, and ventilation principles.
• Relevant standards (e.g. NFPA, PIARC, UK guidance).
• Experience in Project delivery across design / feasibility stages, Client interaction and coordination.
• Established network within UK rail organisations (e.g. Network Rail, TfL, consultants).
• Demonstrated contribution to business development or winning work.
• Ability to operate with limited supervision and support senior leadership.
• Opportunity to help shape and grow a specialist capability within a leading consultancy.
• Exposure to major UK and international tunnel projects.

• Entrepreneurial mindset – able to identify and pursue opportunities
• Strong communication and stakeholder engagement skills
• Collaborative but capable of leading technical discussions
• Motivated to grow a technical discipline

• Explore the rewards and benefits that…