Principal / Associate Fire Safety

Tetra Tech, Inc.; Southampton; On-site; GBP 70,000 - 110,000; Full time

Job summary

Tetra Tech, Inc. in the United Kingdom is seeking a Senior/Principal Fire Safety Engineer to deliver fire engineering services across public and private sector projects.

You will apply fire engineering principles to building design, undertake technical delivery and compliance checks (Approved Document B, BS 9999), review designs and drawings, attend site meetings, and mentor junior engineers.

Qualifications

• Recognised fire engineering qualification and consultancy experience.
• Track record across commercial, residential, education, healthcare and defence sectors.

Responsibilities

• Lead complex fire engineering analyses and produce robust design solutions.
• Conduct detailed drawing and specification checks for regulatory compliance.
• Use fire dynamics, evacuation modelling, or structural fire methods to inform risk assessments.
• Collaborate with clients, project teams and contractors at all levels; represent input in meetings and on site.
• Mentor junior engineers and contribute to business growth and project delivery.

Skills

Technical Delivery

Design Review

Modelling & Analysis

Stakeholder Collaboration

Coaching & Leadership

Education

Recognised fire engineering qualification

Tools

Fire/evacuation modelling tools

Job description

Join Tetra Tech's expanding Fire Safety team and apply cutting-edge engineering to projects that protect people and infrastructure. If you're a meticulous, proactive fire safety engineer who thrives in technical, multidisciplinary teams and wants meaningful career progression, this role is for you.

Purpose & Scope of the Role

As Senior/Principal Fire Safety Engineer you will deliver fire engineering services across public and private sector projects in the UK and internationally. You'll 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 Impact in this position

You 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. You'll also provide technical guidance that raises team capability and ensures consistent, high-quality engineering outputs.

Core Capabilities

• Technical Delivery: Lead complex fire engineering analyses, apply fire dynamics, and produce robust, defendable design solutions.
• Design Review & Compliance: Conduct detailed drawing and specification checks for regulatory compliance and engineered solutions.
• Modelling & Analysis: Use fire and evacuation modelling or structural fire engineering methods to inform design and risk assessments.
• Stakeholder Collaboration: Communicate clearly with clients, project teams and contractors at all levels; represent fire engineering input in meetings and on site.
• Coaching & Leadership: Mentor junior engineers, provide technical oversight, and contribute to business growth and project winning activities.

Training, Qualifications & Experience

Recognised fire engineering qualification and demonstrable consultancy experience. Extensive track record across the listed sectors. Familiarity with fire/evacuation modelling tools or structural fire methods is advantageous. Full, clean UK driving licence and willingness to undergo security clearance.

Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity. 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 ourclients' most complex problems.

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.

Additional Information

Organization: 784 TCE