Location
London (West)

Hours
Full Time

About the Role
Join Tetra Tech’s expanding Fire Safety team and apply cutting‑edge engineering to projects that protect people and infrastructure. As a Senior/Principal Fire Safety Engineer, you will deliver fire engineering services across public and private sector projects in the UK and internationally. You will apply fire engineering principles to building design, undertake technical delivery and compliance checks (Approved Document B, BS 9999 and fire engineering approaches), review designs and drawings, attend site and design-team meetings, and contribute to winning and delivering projects with a fire safety component. Your role will shape safe, pragmatic fire solutions across commercial, residential, education, healthcare and defence sectors. Your technical decisions will influence design teams and client outcomes, reduce risk, and support project delivery. Additionally, you will provide technical guidance that raises team capability and ensures consistent, high‑quality engineering outputs.

Core Capabilities
- Lead complex fire engineering analyses, applying fire dynamics to produce robust, defendable design solutions.
- Conduct detailed drawing and specification checks for regulatory compliance and engineered solutions.
- Use fire and evacuation modelling or structural fire engineering methods to inform design and risk assessments.
- Communicate clearly with clients, project teams and contractors at all levels; represent fire engineering input in meetings and on site.
- Mentor junior engineers, provide technical oversight, and contribute to business growth and project winning activities.

About Tetra Tech
Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We offer a collaborative environment that supports individual performance, innovation, and creativity. Our teams provide a global support network with a personalised approach to client relationships to better understand where we can add value. We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who are Leading with Science to solve our clients’ most complex problems.

Equality & Inclusion
In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role.

Experience
Recognised fire engineering qualification with demonstrable consultancy experience. Extensive track record across commercial, residential, education, healthcare and defence sectors. Familiarity with fire/evacuation modelling tools or structural fire methods is advantageous.

About you
A meticulous, proactive fire safety engineer who thrives in technical, multidisciplinary teams and seeks meaningful career progression. Strong communication skills to collaborate effectively with clients, project teams and contractors. Able to mentor junior engineers and provide technical oversight.

Qualifications
Recognised fire engineering qualification. Full, clean UK driving licence and willingness to undergo security clearance.