Overview

Senior Commercial Director - Defence and Security at Arcadis. Arcadis is the world''s leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are 36,000+ people in over 70 countries dedicated to improving quality of life.Role description: Provide strategic leadership for cost and commercial management services across the most complex national and international defence projects—including infrastructure, facilities, and secure environments. This role ensures that the Cost and Commercial Management function aligns with the business strategy and delivers exceptional technical and commercial outcomes in a highly regulated sector.Role accountabilities

Strategic Leadership

Lead the Cost and Commercial Management function for major defence sector developments, ensuring all activities align with business plans and the organization’s strategic objectives.Develop and implement best-practice processes tailored to defence projects to ensure efficiency, compliance, and value creation.

Technical and Commercial Oversight

Oversee cost planning, procurement, contract administration, risk and value management, and financial reporting for highly complex, secure projects.Ensure accurate forecasting, contract compliance, and effective change management in accordance with defence sector standards.

Team Management and Development

Build, mentor, and lead multidisciplinary teams, fostering a culture of performance, accountability, and ongoing professional development.Champion adoption of digital tools and innovative solutions to enhance project delivery and reporting.

Client and Stakeholder Engagement

Cultivate strong relationships with defence clients, government agencies, contractors, and consultants.Represent the organization in high-level meetings, negotiations, and industry forums, both nationally and internationally.

Risk, Security and Compliance

Identify, assess, and mitigate commercial and contractual risks unique to the defence sector, including security and confidentiality requirements.Ensure all work fully complies with relevant statutory, regulatory, and security frameworks.

Continuous Improvement

Promote a culture of continuous improvement and lessons learned across all defence projects.Drive innovation and integration of digital and data-driven solutions in commercial management.

Qualifications and Experience

Qualifications: Degree in Quantity Surveying, Commercial Management, Engineering, or related field. RICS, ACostE, or equivalent professional accreditation preferred.Experience: Significant senior experience in cost and commercial management for major defence, security, or government projects (national/international). Experience with MOD, DIO, or similar bodies highly regarded.Technical Skills: Deep knowledge of defence procurement, contract forms (NEC, FIDIC, JCT, etc.), security protocols, and industry regulations.Leadership: Proven ability to lead large, diverse teams in complex, highly regulated environments.Stakeholder Management: Excellent communication, negotiation, and relationship-building skills with senior government and industry stakeholders.Security Clearance: Eligible for (or holds) relevant Defence sector security clearance.

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 help deliver sustainable solutions for a more prosperous planet. Together, we can create a lasting legacy.Equality, Diversity, Inclusion and Belonging

Our Commitment to Equality, Diversity, Inclusion and Belonging: We want you to bring your best self to work every day. We are committed to equality and inclusion and strive to be an employer of choice. We believe diverse people with different experiences develop the most innovative ideas. Equality, diversity and inclusion are at the heart of how we improve quality of life and we work with six EDandI Workstreams: Age, Disability, Faith, Gender, LGBT+ and Race.EEO statement retained

A diverse and skilled workforce is essential to our success.

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