Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world's most complex challenges and deliver more impact together. Role description: Due to significant growth in the Arcadis Defence sector, we are recruiting for positions working alongside our client organisation and in client-side roles, to deliver a wide range of high-profile buildings projects. Due to the nature of these projects, existing BPSS clearance or the ability to pass BPSS security clearance is essential. Role accountabilities: As a Principal Mechanical Engineer, you'll be responsible for leading the mechanical design on larger projects, working collaboratively with other design disciplines to ensure the integration of the overall design or solution. You will need to present complex technical solutions to clients. You will manage project teams with up to 10 people, providing technical advice to team members, to support them in their delivery on the project and in their professional development. You will manage the performance of team members and sub-contractors, identifying and ensuring the resolution of any issues. Qualifications & Experience: First and foremost, you share our passion for improving the quality of life. You pride yourself for the part you play in transforming the world around you and understand the importance of teamwork. You come to us with: A BSc/BEng or MSc/MEng in Mechanical Engineering or similar Chartered Engineer (CEng) Previous experience working in a similar role Prior experience working in a consultancy environment Previous experience working on Nuclear or Defence projects preferable Ability to support and lead junior engineers Existing BPSS clearance or the ability to pass BPSS security clearance is essential. Why Arcadis? We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It's why we are pioneering a skills-based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together. You'll do meaningful work, and no matter what role, you'll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark, on your career, your colleagues, your clients, your life and the world around you. Together, we can create a lasting legacy. Join Arcadis. Create a Legacy. Our Commitment to Equality, Diversity, Inclusion & Belonging We want you to be able to bring your best self to work every day which is why we take equality and inclusion seriously and hold ourselves to account for our actions. Our ambition is to be an employer of choice and provide a great place to work for all our people. We believe that by working together diverse people with different experiences develop the most innovative ideas. Equality, diversity and inclusion is at the heart of how we improve quality of life and we work closely with our people across six ED&I Workstreams: Age, Disability, Faith, Gender, LGBT and Race. A diverse and skilled workforce is essential to our success. LI-CB1 ArcadisCTP ArcadisForce