Senior Process Engineer, BC Operations

• Be part of a group that is safety driven and values inclusion

• Great opportunity to work in one of the worlds unique sites with the focus now shifting to comprehensive world-class rehabilitation whilst maintaining successful operation of a critical path asset

• Work a 14:7 roster living in Darwin BIBO to Jabiru

Were Finding Better Waysto provide materials the world needs now and in the future. Our values care courage and curiosity guide how we work and how we treat each other.

About the role

We are seeking an experienced Engineer Process to support the safe and effective operation of the Brine Concentrator as part of the Ranger Uranium Mine Rehabilitation Project.

This role plays a critical part in one of Australias most significant environmental rehabilitation programs focused on long term protection of the surrounding Kakadu World Heritage Area. Working closely with site operations maintenance and technical teams you will provide process engineering expertise to ensure compliant reliable and optimised management of high salinity process streams.

This is a site based technical role with genuine accountability and influence suited to an engineer who values safety environmental stewardship and continuous improvement.

The role operates on 2 weeks on 1 week off roster with Darwin as the point of hire.

Reporting to the Superintendent Maintenance and Operations onsite you will be responsible for:

• Providing process engineering support and technical stewardship for the Brine Concentrator and associated water treatment systems

• Defining and maintaining the Brine Concentrator operating envelope control philosophy and critical process limits

• Ensuring regulatory compliance managing process risk and optimising performance across variable operating and seasonal conditions.

• Monitoring plant performance identify process constraints and support optimisation initiatives

• Troubleshoot process issues including scaling fouling corrosion and chemical management

• Supporting safe operations in line with environmental approvals site standards and rehabilitation objectives

• Contributing to risk assessments incident investigations and continuous improvement activities

• Working collaboratively with Operations Maintenance Projects and external service providers

• Supporting trials testing and implementation of process improvements

• Contributing to technical documentation knowledge sharing and capability development onsite

About you

• A commitment to the safety of yourself and your team

• Degree qualification in Chemical Process or Mechanical Engineering

• Experience in process engineering ideally within water treatment brine management or high salinity systems

• Strong understanding of process safety regulatory compliance and risk management

• Practical site focused approach with the ability to work effectively in operational environments

• Strong communication skills and the ability to work across multidisciplinary teams

• C Class Drivers Licence

It would also be beneficial if you have:

• Experience with BC plant or evaporator systems mine water management and site closure or rehabilitation projects

• Strong capability in technology trials plant performance improvement and risk assessments (e.g. HAZOP) with comfort working in dynamic operating environments involving largescale water management

What we offer

Be recognised for your contribution your thinking and your hard work and go home knowing youve helped the world progress.

• A work environment where safety is always the number one priority

• A permanent position working directly for Rio Tinto

• A competitive base salary reflective of your skills and experience with annual incentive program

• Comprehensive medical benefits including subsidised private health insurance for employees and immediate family

• Attractive share ownership plan

• Company provided insurance cover

• Extensive salary sacrifice & salary packaging options

• Career development & education assistance to further your technical or leadership ambitions

• Ongoing access to family-friendly health and medical wellbeing support

• Leave for all of lifes reasons (vacation/annual paid parental sick leave)

• Exclusive employee discounts (banking accommodation cars retail and more)

• Possible domestic relocation assistance

Where youll be working

Energy Resources of Australia Ltd (ERA) operated the Ranger Uranium Mine near the town of Jabiru in the Northern Territory Australia previously mining and producing uranium January 2021 ERA ceased all mining and processing activities at Ranger after 40 years of operation with the focus now shifting to rehabilitation.

The Ranger Rehabilitation Project is committed to the rehabilitation of the Ranger Project Area to a standard that will establish an environment similar to the adjacent Kakadu National 2024 ERA entered into a Management Services Agreement (MSA) with Rio Tinto to manage the Ranger Rehabilitation Project which will build on ERAs existing rehabilitation work with Rio Tintos technical expertise in designing scoping and executing closure projects. We remain committed to working with all key stakeholders including the Mirarr People to complete this important rehabilitation work.

Applications close on13th August 2026(Rio Tinto reserves the right to remove advertised roles prior to this date).

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About Rio Tinto

Rio Tinto is a leading global mining and materials company. We operate in 35 countries where we produce iron ore copper aluminium critical minerals and other materials needed for the global energy transition and for people communities and nations to thrive.

We have been mining for 150 years and operate with knowledge built up across generations and continents. Our purpose is finding better ways to provide the materials the world needs striving for innovation and continuous improvement to produce materials with low emissions and to the right environmental social and governance standards. But we cant do it on our own so were focused on creating partnerships to solve problems create win-win situations and meet opportunities.

Respect and Inclusion

At Rio Tinto we particularly welcome and encourage applications from Aboriginal and Torres Strait Islander people women the LGBTI community mature workers people with disabilities and people from different cultural backgrounds.

We are committed to an inclusive environment where people feel comfortable to be themselves. We want our people to feel that all voices are heard all cultures respected and that a variety of perspectives are not only welcome they are essential to our success. We treat each other fairly and with dignity regardless of race gender nationality ethnic origin religion age sexual orientation or anything else that makes us different.