Senior Flooding & Hydrology Engineer (FT or 4 d/wk)

Systra; Sydney; On-site; AUD 140,000 - 190,000; Full time

Benefits offered by this job

Flexible working arrangements

Learning and development opportunities

Chartered Engineer status

Job summary

BG&E, now part of the SYSTRA Group, is seeking a Senior Flooding & Hydrology Engineer to join our NSW team in Sydney. This full-time role (or 4 days/week) offers the chance to lead flood studies and modelling across major projects.

You'll work on hydrology, hydraulic modelling, flood risk assessments, and reporting, mentoring juniors, and advancing to Associate/Technical Lead. NSW experience and Chartered status are highly regarded.

Qualifications

• Degree in Civil or Environmental Engineering or Environmental Science with strong hydrology focus.
• 7+ years in flood assessments, hydrology, and hydraulic modelling in Australian consulting
• NSW experience strongly preferred; major infrastructure project exposure
• Expert level in hydrology/hydraulic modelling using RORB, TUFLOW, HEC-RAS
• Knowledge of Australian Rainfall and Runoff and statutory procedures
• Chartered status and familiarity with 12d and DRAINS is advantageous

Responsibilities

• Lead flooding and hydrology projects, ensuring quality on time and budget
• Deliver hydrologic studies, hydraulic analyses, flood mapping and reports
• Mentor junior engineers and review technical work
• Collaborate with clients, authorities, and project teams

Skills

Hydrology

Hydraulic modelling

Flood risk management

Project leadership

Stakeholder communication

Education

Civil/Environmental Engineering or Environmental Science

Tools

RORB

TUFLOW

HEC-RAS

12d

DRAINS

Job description

Senior Flooding & Hydrology Engineer (FT or 4 d/wk)

BG&E is a civil and structural engineering consultancy, celebrated for our innovative, award-winning designs that prioritise practicality and constructability.

Now part of the SYSTRA Group, we continue our decades-long commitment to delivering high-quality technical expertise to our clients - proud to support the ambitious growth of a sustainable and resilient international company. We partner with clients and stakeholders to challenge the status quo, pushing the boundaries of what's possible in engineering.

The Role

Join a national team where your expertise in flooding and hydrology will be genuinely valued, your work will help shape meaningful projects across diverse sectors, and your career progression will be supported through clear opportunities to progress into an Associate or Technical Lead role.

Help us shape our communities in an innovative and sustainable way:

• This role will suit a capable and collaborative professional with strong hydrologic and hydraulic modelling experience, a passion for solving complex flood-related challenges, and a desire to grow their career within a values-driven consulting environment.
• Lead and manage flooding and hydrology projects, or work packages within multi-disciplinary projects, ensuring delivery on time, within budget, and to the required quality standards.
• Deliver technical flood and hydrology work, including hydrologic studies, hydraulic analysis, flood modelling, flood mapping, surface water management assessments, and report writing.
• Undertake flood risk assessments, interpret complex model results, and provide clear, practical recommendations on flood risk mitigation and sustainable design solutions.
• Prepare high-quality technical reports, memoranda, presentations, and inputs to fee proposals and tender submissions, including scopes of work and budgets.
• Collaborate with clients, local authorities, regulatory agencies, project managers, and other discipline leads to support project outcomes and smooth delivery across teams.
• Mentor junior engineers, review technical work, and contribute to continuous improvement by promoting high standards, innovation, and current best practice in flood modelling and risk management.

About You

• Qualifications in Civil or Environmental Engineering or Environmental Science, with strong technical capability in hydrology, hydraulic modelling, and flood risk management.
• 7+ years' experience delivering flood assessments, hydrology, and hydraulic modelling within Australian consulting environments, with NSW experience strongly preferred.
• Major infrastructure project experience is essential, with the capability to contribute confidently within multi-disciplinary teams and step into discipline package lead responsibilities.
• Strong experience developing and reviewing complex hydrologic and hydraulic models, with advanced knowledge of tools such as RORB, TUFLOW (essential), and HEC-RAS.
• Sound technical understanding of hydrology assessments, including the application of Australian Rainfall and Runoff, relevant regional and local procedures, and clear communication of technical outcomes to clients and stakeholders.
• Chartered status, understanding of flood policy and approval pathways, and familiarity with tools such as 12d and DRAINS will be highly regarded.

What do we offer?

• Flexible working arrangements
• Competitive salary and financial benefits
• Salary sacrificing and novated leasing
• Wellbeing support, parental leave, life insurance and income protection
• EAP access, fitness sessions and free flu vaccinations
• Learning and development opportunities
• Paid Chartered Engineer status and professional memberships
• Recognition programs and long-term career support

Gender Equity, Diversity and Inclusion

Equality is part of our DNA - We Value who you are - it begins with our values and continues through our culture - and is fostered throughout our workplaces. We recognise the benefits of diversity and encourage our people to be comfortable in bringing their complete self to work.

Wellbeing and Safety

BG&E provides collaborative working environments, which supporting the safety and wellbeing of all employees and stakeholders. As an organisation, we strive to continually mitigate risks, and to improve our safety systems and performance.