Join a well-established, 30-year Queensland consultancy, proudly awarded the 2026 IPWEAQ Employer of the Year title.

The Firm Behind the Designs

Empowering Success Through Vision and Experience

Harrison Infrastructure Group (HIG) is a multidisciplinary engineering consultancy delivering civil, traffic, hydraulic and electrical design, along with construction contract administration and project management. HIG’s experienced team works with the Department of Transport and Main Roads (TMR), local councils and private clients across Queensland.

With more than 90 professionals across five Queensland offices, plus a satellite office in Roma, HIG gives you the stability of an established firm with the feel of a close-knit, family-oriented team.

Staff and their families come together for company-wide events, and your ideas and expertise genuinely shape how things are done.

Learn more at www.hig.com.au

Where Your Expertise Takes Shape

HIG is looking for a full-time Principal Civil Designer to be the senior technical lead on its civil design projects. The role is ideally based in Toowoomba, reporting to the Toowoomba Office Manager, and HIG is also open to you being based in its Brisbane, Sunshine Coast, Bundaberg or Rockhampton office.

This role puts your design expertise front and centre. You’ll own projects from concept to completion, guide and mentor the design team, and have a explicit path into leading projects across the business as HIG continues to grow.

No two projects look the same. Depending on your background, your work could span road design, subdivision design and wider civil infrastructure.

What You'll Deliver In this role, you will:

Design Leadership





- Scope and estimate civil design projects
- Prepare civil designs and detailed design documentation
- Set tasks and priorities for design and technical staff so projects stay on track
- Mentor junior team members and help build their technical skills

Project Management

- Lead the design and documentation of civil infrastructure projects from concept to completion
- Manage and coordinate subconsultants
- Keep clients engaged and manage stakeholder expectations
- Track budgets, and forecast and report on project spend

What You'll Bring to the Drawing Board To qualify, you will need a minimum of an Associate Diploma in Civil Engineering and 10+ years' civil design experience across urban and rural roads, traffic and/or hydraulics.

You will also bring:

- Advanced AutoCAD, 12d and/or Civil 3D skills, plus strong Microsoft Office skills
- A proven track record in project management and cost control
- Knowledge of Austroads, TMR and local authority standards

Highly Regarded

- Experience on TMR projects
- Land development and subdivision design
- Advanced 12d capability
- Water Services Association (WSA) experience

Please note: Australian citizenship is required for this role.

Is This You?

If you're the kind of civil design professional who takes pride in getting it right, thinks before acting,



and can explain a complex design as clearly as you can draw it, this role is built for you.

HIG is looking for someone who brings:

- A meticulous eye for detail and genuine pride in getting the design right the first time
- Sound judgement, blending technical analysis with practical experience to make confident calls
- The discipline to follow established processes, with the initiative to find practical solutions when challenges arise
- Clear, approachable communication, whoever's in the room
- The confidence to manage your own workload and adapt smoothly as priorities shift
- A collaborative, team-first approach, always ready to support colleagues and share the load

If you're looking for a role where your judgement is trusted, your craft is respected, and your experience carries real weight, this is it.

Why Join HIG?

In return for your expertise and commitment, you'll be rewarded with a competitive salary, negotiable to reflect your skills and experience, PLUS super, along with a range of benefits designed to support your work and lifestyle:

- Paid Overtime, a rare offering among engineering consultancies
- Flexible Start and Finish times PLUS Time Off in Lieu (TOIL)
- Access to Work Vehicles for site inspections
- Strong Mentoring and Buddy Support
- Internal and External training and standards-focused working groups
- Career Development and Progression Opportunities

Your Next Project Starts Here

If this sounds like your next move, HIG would love to hear from you. APPLY NOW!

Harrison Infrastructure Group is an equal opportunity employer committed to building a diverse and inclusive team.

📌 Principal Civil Designer & Engineer (Sydney)
🏢 Harrison Infrastructure Group
📍 Sydney