Senior Tunnel Ventilation Engineer

Overview

Senior Tunnel Ventilation Engineer – Epsom Office Join Atkins

Réalis to support the design, delivery and asset performance of tunnel ventilation systems for UK rail and road projects, as well as international projects.

• Lead the design and assessment of tunnel ventilation systems, including 1‑D modelling (SES / IDA) and CFD studies.
• Prepare fire and life‑safety assessments and ventilation strategies.
• Support commissioning, testing and asset performance reviews.
• Produce high‑quality technical reports and client deliverables.
• Act as a technical authority and client‑facing engineer, strengthening the presence in the UK Rail and Road sector.
• Contribute to strategic growth through bids, proposals and industry engagement.
• Mentor junior engineers and improve processes, tools and best practice.

• 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.
• Develop and maintain strong relationships with UK rail sector organisations.

• Mentor junior engineers.
• Contribute to process and tool improvements.
• Collaborate with senior leadership on growth strategy.

• Strong client relations with UK Rail tunnel operators.
• Proven experience in tunnel ventilation design and asset management projects.
• Knowledge of SES, IDA Tunnel and CFD tools (e.g. FDS, Pyro Sim, Pathfinder).
• Good understanding of fire dynamics, smoke control and ventilation principles.
• Familiarity with relevant standards (e.g. NFPA, PIARC, UK guidance).
• Experience delivering projects across design and feasibility stages, with 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 work independently while supporting senior leadership.

• Entrepreneurial mindset to identify and pursue opportunities.
• Strong communication and stakeholder engagement skills.
• Collaborative yet capable of leading technical discussions.
• Motivation to grow a technical discipline.

Competitive salary, professional development opportunities, hybrid working culture, flexible holiday allowances and a range of employee rewards.

This role may require security clearance and offers of employment will be dependent on obtaining the relevant level. The vetting process is delivered by United Kingdom Security Vetting (UKSV) and may require proof of UK residency for 5 years or longer.

Atkins

Réalis is an Equal Opportunities Employer. We value applications from all backgrounds, cultures and abilities, and we are committed to providing an interview that meets the needs of applicants with disabilities.