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Mott MacDonald • Perth, WA, AU

Defence Design Manager

Employment type:  Full time
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Job Description

Brilliant people trusted to do brilliant things

Mott MacDonald is a vibrant and forward-thinking engineering, management, and development consultancy. Working together as a global team we plan, design, deliver and maintain the transport, energy, water, buildings, and wider infrastructure that is integral to people’s daily lives. We value excellence in every dimension of our business and continuously seek opportunities to improve what we do and how we do it.​

We employ brilliant people who combine their diverse skills and experiences to achieve brilliant things. Whether you want to specialise or broaden your experience, you'll be supported by global specialists eager to share their expertise. With numerous opportunities to learn and grow, the possibilities are as diverse as our people. Working as a connected global team, we deliver impactful projects that shape the future.​

Your Opportunity

We are seeking an experienced and motivated Regional Design Manager to lead the design delivery of a portfolio of Estate Works Program (EWP) through the Project Delivery Services (PDS) Contract. In this role, you will be responsible for coordinating multi-disciplinary design teams, ensuring technical quality, managing programme and budget performance, and working closely with project managers and stakeholders to deliver successful project outcomes. This is an excellent opportunity for a collaborative leader who thrives in complex project environments and is passionate about delivering safe, compliant and high-quality design solutions.

  • Lead the resourcing, coordination and delivery of design packages across a portfolio of projects.

  • Manage programme, scope, budget and design quality to ensure successful project outcomes.

  • Work closely with project managers, technical teams and stakeholders to understand requirements and deliver compliant solutions.

  • Drive safe design practices and ensure compliance with relevant standards, legislation and client requirements.

  • Coordinate multidisciplinary teams and subconsultants to achieve project milestones on time and within budget.

  • Support effective risk, change and document management throughout the project lifecycle.

  • Provide clear, timely and transparent communication on project progress, issues and recommended actions.

  • Contribute to team capability, technical leadership and continuous improvement across the design function.

About You

To succeed in this role, you will bring strong design management capability, excellent stakeholder engagement skills and a proven ability to lead teams in complex infrastructure or Defence project environments.

  • Demonstrated experience in design management, engineering delivery or multidisciplinary project coordination.

  • Strong understanding of project delivery across scope, programme, budget, quality and risk.

  • Ability to lead and influence diverse technical teams and external partners.

  • Experience working within regulated environments and applying relevant standards and governance requirements.

  • Citizen of Australian and ability to achieve a current baseline security clearance.

As a recognised Veteran Employment Supporter and signatory to the Veteran Employment Commitment, we actively encourage applications from current and former Australian Defence Force personnel.

Culture & Benefits

Mott MacDonald celebrates diversity and inclusion, offering a supportive work environment that values work-life balance, diversity, inclusion, and equity. We welcome diverse applicants, including First Nations People, people with disabilities, members of the LGBTQIA+ community, and people of all genders, neurodiversity, cultural backgrounds, age groups, and those with intersectional identities.

Our benefits package is designed to enhance your experience:

  • A flexible and agile work atmosphere that caters to your professional journey and life's special moments
  • A competitive salary complemented by Discretionary Group and Personal Performance Bonuses for eligible employees
  • Comprehensive coverage including life and salary continuance insurance, providing peace of mind during uncertain times
  • Opportunities to enhance your work-life balance through the option to purchase extra annual leave
  • Employee resource groups including the Inclusive Network for Women, Corporate Social Responsibility and more

Employee Ownership

  • Our employee ownership model means no external investors, just us, creating a culture of shared success.
  • Our employees have a stake and a voice in our business, giving them a direct connection to our success through our personal and group performance bonuses.
  • As your career grows, so does your stake, recognising your long-term impact and contribution.
  • Your voice matters, with the opportunity to connect directly with senior leadership through formal channels to help shape our future.

You’ve got this!

We endorse a diverse and inclusive workplace, and look to provide suitable opportunities for employees including the opportunity for part time and job shared roles where possible. If you are interested in this role and looking for a part time permanent opportunity, please apply! #LI-RZ1

Company benefits

Accrued annual leave
Adoption leave – 26 weeks full pay
Annual bonus
Annual pay rises
Bank holiday swaps
Bike parking
Book swaps
Buddy scheme
Buy or sell annual leave
Carer’s leave – up to 5 days, two of which are paid
Compassionate leave
Critical Illness Insurance
Cycle to work scheme
Dental coverage
Employee assistance programme
Employee discounts
Enhanced maternity leave – 26 weeks full pay
Enhanced paternity leave – 2 weeks
Enhanced pension match/contribution – matched up to 7%
Enhanced sick pay
Ergonomic workstations
Eye Care Support – Eyecare vouchers
Faith rooms
Fully stocked snack cupboard
Further education support
Health assessment
In house training
Income protection
L&D budget
Learning platform
Life assurance
Life insurance – 4 x salary
Lunch and learns
Meditation space
Meditation space
Mentoring
Modern office
On-site shower
On-site yoga classes
Open to part time work for some roles
Open to part-time employees
Pregnancy loss leave
Pregnancy support
Private booths
Private GP service – Private Medical care for all UK staff
Professional subscriptions – We pay for your primary professional annual subscription
Referral bonus
Religious celebration leave
Reservist leave – 10 days leave
Returnship
Salary sacrifice
Share options
Shared parental leave – We match up to 24 weeks full pay
Study support
Tax-free childcare
Teambuilding days
Theme park discounts
Travel loan
Women’s health leave
Menopause support

Working at Mott MacDonald

Company employees:

18,000 worldwide

Gender diversity (m:f:n-b):

0:35:65

Hiring in countries

Australia

Bulgaria

Canada

Czechia

Germany

Hong Kong

India

Ireland

Italy

Japan

Malaysia

Netherlands

New Zealand

Saudi Arabia

Serbia

Singapore

South Korea

Spain

Taiwan

Thailand

United Arab Emirates

United Kingdom

United States

Office Locations

Awards & Accreditations

Best Employee Wellbeing

Top 5 - Best Employee Wellbeing

Flexa awards 2026
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2026
2nd - Best Career Progression

2nd - Best Career Progression

Flexa awards 2025
3rd - Most Family Friendly Company

3rd - Most Family Friendly Company

Flexa awards 2025
Most Flexible Company

Top 5 - Most Flexible Company

Flexa awards 2025
Best Work-Life Balance

Top 5 - Best Work-Life Balance

Flexa awards 2025
Best Workplace Culture

Best Workplace Culture

Flexa awards 2025

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