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Mott MacDonald • Adelaide, SA, AU

Senior Nuclear Safety Case Engineer

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.

Shape Australia's Nuclear Future and Your Opportunity

Join one of Australia's most significant defence and nuclear programmes supporting the delivery of the AUKUS partnership and Australia's future naval nuclear capability.

Due to strong growth and an exciting pipeline of projects, Mott MacDonald's Defence Division in Adelaide has an exciting opening for a Senior Safety Case Engineer to support the delivery of complex naval nuclear programme. As a Senior Nuclear Safety Case Engineer, you will play a key role in the development and delivery of nuclear safety case and safety assurance activities across complex, high-profile programmes. Working alongside specialists from Australia, the UK and across our global business, you will contribute to safety-critical outcomes while continuing to develop your technical expertise and leadership capability. In this position you will:

  • Lead the development of safety case documentation and supporting analyses.
  • Deliver nuclear safety assessments across various stages of the project lifecycle.

  • Support engagement with clients, regulators and technical stakeholders.

  • Contribute to hazard identification, risk assessment and safety substantiation activities.

  • Review and assure technical deliverables produced by project teams.

  • Support and mentor graduate and early-career engineers.

  • Collaborate with multidisciplinary engineering teams to achieve successful project outcomes.

Demonstrated expertise in one or more of the following areas:

  • Nuclear safety case development and substantiation

  • Deterministic and Probabilistic Safety Assessment

  • Regulatory engagement and licensing activities

  • Design change and modification safety assessments

  • ALARP and risk assessment studies

  • Decommissioning and lifecycle safety management

  • Functional safety and engineering substantiation

  • Hazard identification and risk studies (HAZOP, HAZAN and related techniques)

  • Nuclear fire and criticality assessment

  • Decommissioning and lifecycle safety management

About You

  • A degree in engineering, physics or another relevant STEM discipline.
  • Experience delivering nuclear safety case or safety assurance activities.

  • Experience within nuclear, defence or other highly regulated industries.

  • Progress towards Chartered status, or Chartered Engineer status.

  • Strong technical problem-solving and analytical skills.

  • Excellent communication and stakeholder engagement capabilities.

  • A desire to continue developing both technically and professionally.

  • Experience mentoring or supporting junior team members would be advantageous.

If you meet some or more of what we’re looking for, please still apply. We understand not everyone will meet all the requirements, but you might have skills we didn’t know we need. We are actively recruiting a diverse workforce that is reflective of the communities we serve. We recognise that differences in ability, skills and experience are a strength and encourage applications from people of all backgrounds.

Due to the nature of our Defence projects, successful applicants will be required to obtain and maintain an appropriate security clearance (Australian NV1 or UK SC/DV equivalent). We will support suitable candidates through the clearance process where required.

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

Relocation & International Candidates

We are actively seeking experienced nuclear professionals from Australia, the United Kingdom and other established nuclear markets to help shape Australia's future naval nuclear capability.

For candidates relocating to Adelaide, we offer relocation support and assistance with visa and mobility arrangements where applicable. This is a unique opportunity to apply your expertise to a once-in-a-generation programme while enjoying Adelaide's exceptional lifestyle, affordability and access to world-class food, wine and natural attractions.

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

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Working at Mott MacDonald

3 office days / week

A little flex time – We’re happy to talk flexible working and how we can support your responsibilities beyond the workplace. We offer a range of options depending on your role, so please discuss this with your recruiter.

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
Women’s health support
Collaboration spaces

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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Company employees:

18,000 worldwide

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

0:35:65

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