Senior Design Engineer - Expansion MMC and Constructability in Hounslow

This role is central to enabling Heathrow's world-leading expansion through the application of Modern Methods of Construction (MMC), innovation, and constructability-led design. As a Senior Engineer focused on MMC, you will shape how utility and enabling infrastructure systems are conceived, designed, and delivered maximising off-site manufacture, standardisation, and repeatability to support safe, efficient, and sustainable growth at one of the world's busiest airports.

Operating in one of the most complex and constrained construction environments globally, you will lead the development of manufacture ready, assembly led utility solutions across thermal, electrical, potable water, foul and stormwater systems critical networks that underpin every terminal, airfield asset, highway, structure, and passenger experience. By embedding constructability and MMC principles from the earliest stages of concept development, you will challenge traditional approaches, reduce onsite activity, minimise interfaces, shorten programme durations, and improve productivity while ensuring safety, operational continuity, and resilience across a live airport environment.

The role champions engineering excellence and innovation by promoting platform-based design, modularisation, standard details, DfMA principles, and digital tools that enhance off-site manufacturing, logistics planning, and rapid installation. A whole-life approach is fundamental, ensuring that maintenance access, adaptability, climate resilience, and future capacity are considered in every solution.

Success requires a strong ability to see the wider system and programme level picture, integrating MMC-led utility designs with highways, structures, and buildings, and aligning them with Heathrow's design principles, planning requirements, sustainability objectives, and delivery model. Working collaboratively with designers, constructors, manufacturers, suppliers, and operations teams, you will help set new standards in infrastructure delivery unlocking value, reducing delivery risk, lowering carbon, and driving a shift toward smarter, safer, and more industrialised construction methods that create utility systems designed and manufactured for the future.

• Lead a virtual, multi-disciplinary team drawing on operational experts, consultants, design and build partners, business stakeholders, and customers to ensure high quality designs that reflect future demand, business development, and Heathrow's Sustainability Plan.
• Engage stakeholders at all levels to ensure designs are deliverable, affordable, and aligned to intended business benefits, clearly visualising and communicating asset plans, benefits, risks, and opportunities.
• Provide timely, evidence based input and constructive challenge throughout the design process to ensure decisions reflect real-world asset performance, user needs, and operational reality.
• Collaborate with Engineering teams to ensure asset strategies, standards, and design codes are applied effectively; support optioneering and integrated solution development in line with governance requirements and Heathrow's programme lifecycle.
• Act as an intelligent client by championing good design principles, innovation, and best-value technology choices; ensure safety and risk considerations are embedded at every stage, working with delivery teams to assess, communicate, and manage risks including those arising during construction.

• Degree or equivalent qualified in a relevant engineering discipline.
• Chartered member of a relevant engineering institution or equivalent level of technical competency and hold IEng or be working towards IEng professional status.
• Must have at least 5 years of engineering experience as this is a leadership position where you will act as the clients SME for technical assurance.
• Competent to lead a portfolio of assets in one of the following classifications: Utilities (infrastructure), Mechanical/Electrical, Water Systems and Public Health, Stands and Airside Ops, Terminals, Airport related development and supporting facilities, Services - heating, cooling and distribution, energy, fuels, Environmental, Baggage, Operational Technology and Cyber Security, Civils - Tunnels and Bridges, Civils - Highways, Structures and Car Parks, Civils - Airfield and Roads, Rail Control and automation, Innovation.
• Proven ability to instruct, lead, and manage technical consultants and strategic partners to achieve defined outcomes.
• Strong analytical and decision making skills, using data and sound judgement to develop robust, pragmatic solutions.
• Experience influencing senior stakeholders through clear communication, presentations, and effective engagement.
• Demonstrated experience in scope development, change management, safety improvement through design, and managing technical quality assurance.
• Track record of driving continuous improvement across the design and engineering lifecycle.

• Experience of the aviation industry is preferred, e.g. airlines, infrastructure planning.
• Experience of the UK regulatory and political environment would be a benefit.
• Understanding of related Regulatory, Legislative and Planning frameworks, Development Consent Order process.
• Experience of working at Heathrow or in the large and major programme sector.
• An asset or project management qualification.

About Us: There's something so special about working at the world's most iconic airport. Its sights. Its sounds. Its constant air of excitement. Heathrow is an amazing backdrop to a career filled with unique opportunities. Every day, you'll discover a world full of fresh possibilities and end the day buzzing with stories to tell, as you encounter people from all cultures, nationalities and experiences. A world full of pride for what we do and no end of exciting career prospects to explore. It brings out the best in all of us. And inspires everyone to deliver on our ambitious plans. Together, we're working to welcome millions more passengers while ensuring aviation can continue to be a force for good by leading global efforts in sustainability. Join us on that journey and we'll help you achieve your ambitions too. Supporting you to learn, encouraging you to be yourself, backing you to achieve more than you might ever have imagined. Because there's no place like Heathrow.

Our rewards: We offer competitive salaries and excellent benefits that will support you now and in the future. As well as performance-based annual bonuses and our longer-term Share in Success Bonus plans, we also offer generous annual leave allowances and market-leading pensions. With family friendly policies, access to private health insurance and a wide range of wellbeing tools, we'll support you to be at your best inside and outside work. And of course, we'll provide varied learning and development opportunities too. Here you'll find everything you need for a fulfilling career journey that can take you in exciting directions.

Working Location: Our Hybrid working approach offers the opportunity for colleagues in some roles to work from home for an average of two days a week, providing the flexibility to work in an agile way whilst ensuring we deliver for the operational needs of Heathrow. Working arrangements vary from team to team and will be confirmed during the recruitment process. You'll need to be based in the UK and within a commutable distance to Heathrow.

Sustainable Travel to work: Heathrow's Sustainable Travel Guide sets out easy and sustainable travel options that everyone can access.

Equal Opportunities: As an equal opportunities employer, we encourage applications from all. We believe that diverse talent makes us stronger - not least because we welcome passengers from all corners of the globe, every single day. Heathrow is an accessible place to work. With five diversity networks, we champion inclusivity and celebrate individuality.

About the Team: When it comes to pioneering ambition, there's no place like Heathrow. Our Heathrow Expansion programme offers a unique and exciting opportunity to play a defining role in one of the UK's most significant infrastructure projects. You'll help shape a national legacy that millions will experience for decades to come, as we deliver the third runway, improve passenger experience, stimulate jobs and opportunities across the UK, and strengthen the global connectivity that powers trade and travel. Modernising and expanding the UK's only hub airport and critical national infrastructure whilst keeping it fully operational and safe, creates a pace and complexity unlike other major programmes. It demands collaboration, resilience, problem solving and a desire to take on challenges that genuinely matter. From securing planning consents to designing a new runway, modernising terminals and improving public transport access, and delivering on environmental and community commitments - the scale is unmatched. You'll be part of a diverse team of talented colleagues, built on mutual respect and where excellence thrives. It's an inspiring place to work, with unlimited opportunities to make a difference as you help to shape the future of our world-class airport.