Specialist Mine Infrastructure

Oyu Tolgoi’s workforce today is more than 97 per cent Mongolian, and a major strategic focus for the company is to develop a skilled workforce that is continuously learning. We aim to attract the best talent, so that we can together deliver a safe and globally competitive copper business that contributes to the prosperity of Mongolia. 

Oyu Tolgoi LLC is operating a copper-gold mine in southern territory of Mongolia. The company aspires a vision ‘Natural wealth to enduring value, knowledge, and skill’, and pursues a mission, 'Together deliver a safe and globally competitive copper business that contributes to the prosperity of Mongolia' to build one of the largest copper-gold mines worldwide.
 

Engineering Specialist Mine Infrastructure – Infrastructure Maintenance

• Excellent opportunity to be part of a world-class underground mining project
• Great exposure and development opportunities within the Owner’s team
• Collaborative and high performing environment at an exciting location
• International FIFO 28 days / 14 days Roster

About your role

We are seeking a Engineering Specialist Mine Infrastructure to join our Underground Maintenance Team, supporting the delivery and ongoing performance of a world‑class underground mine in Mongolia. This is a key role within the owner’s team, responsible for supporting the maintenance, reliability, and upgrades of underground production infrastructure.

The scope of this role includes all aspects of underground infrastructure, notably:

• Dewatering
• Service & Fire Water
• Compressed Air
• Vent doors, booster fans, and other underground support fixed plant assets

The role will assist in the coordination of the scope development, project schedule, engineering design, tender packages and evaluation, component procurement, contractor management for the infrastructure Improvements and maintenance for the underground Fixed Plant Department.

The role shall ensure that the designs and fabrication are compliant with the Oyu Tolgoi health and safety systems and procedures, ensuring designs and fabricated components are completed to the required standard, quality and international best practices.

Working within the Infrastructure team (Maintenance and Engineering team) and reporting to the Manager Infrastructure Maintenance you will assist and lead the following;

• Collaborate with operations teams to identify issues and process bottlenecks.
• Analyze reports from fixed plant and infrastructure teams, provide recommendations, and track implementation.
• Assist in the implementation of reliability and production improvement projects in coordination with all stakeholders.
• Package procurement and implementation strategy development to support the long-term objectives of the business
• Assist in the Development of Project Budgets, cost estimation and approvals
• Review spare strategies, maintenance, and operation reports to analyze issues and bottlenecks.
• Following the Rio Asset Management Process from procurement to working with site planners to ensure FLOC, BOM’s and Maintenance Strategies and Maintenance Tactics are in SAP.
• Utilize experience in plant operations to drive continuous improvements.
• Assess and refine operations and maintenance strategies for enhanced efficiency.
• Actively participate in Root Cause Analyses (RCAs), maintenance meetings, and operations discussions
• Coordination of Tendering Process and Technical Evaluations
• Focus on safety in design aspects of new scope to minimize the risks associated with execution
• Providing technical and constructability support and direction on engineering matters, building on and sharing of the lessons learned
• Participating in constructability reviews to identify opportunities to improve execution and/or operations of the facilities
• Maintaining relationships with key stakeholders to drive a culture of collaboration, participation and improvement

About you

To be successfully considered for this role, you will have the following:

• Maintenance background with Mechanical Engineering Qualifications
• Experience in leading Construction projects and multidisciplinary teams for plant improvements.
• Outstanding commitment to HSE and Quality
• Experience in Construction projects.
• Experience in piping systems and underground mining construction, operations, and maintenance.
• Strong analytical and problem-solving skills with a focus on operational efficiency and reliability.
• At least 10 years of experience in Engineering, Construction and design.
• Have experience in the coordination of Contractors and operational teams
• Excellent communication and interpersonal skills
• Demonstrated ability to work as part of an integrated delivery team
• An ability to work autonomously within a highly complex project delivery environment
• A can-do attitude that seeks to provide solutions and a desire for continuous improvement

A desire to pass on your wealth of industry experience and knowledge in order to accelerate development of capability and knowledge amongst the company and contractor national workforce.

It will also be beneficial if you have:

• SAP or CMMS, Asset Management experience
• CAD, Solidworks drawing experience
• Underground experience
• Experience in national capability development and working overseas

About us

Joining the Rio Tinto Oyu Tolgoi Underground Project team is a great opportunity to be part of one of the most exciting developments in copper and gold mining for several decades. The mine contains reserves and resources that make it one of the world’s largest copper-gold deposits.

This mega project is expected to be a major contributor to Mongolia’s development. As part of the Rio Tinto Oyu Tolgoi Underground Project team, you have the ability to contribute to something significant and learn and develop both personally and professionally. We offer a collaborative, high performing environment where success is achieved by working together.

Discover more about Mongolia and Oyu Tolgoi

Mongolia is increasingly becoming a destination for tourism and expatriate residents. As a rapidly developing city, Mongolia's capital Ulaanbaatar is seen as a comfortable, yet exciting place to live. With an array of cultural and social activities available and a growing network of international schools, housing options, and leisure facilities, its home to a growing community of international expatriates.

Located in the South Gobi Desert, just 80 kilometres from the Chinese border, the Oyu Tolgoi open pit mine and camp is a large, well-run and comfortable site with multiple amenities including recreational and sports facilities, a cinema, shops, restaurants and bars catered to a growing community. For more information about OT site, please check out this video.

Where you’ll be working

Oyu Tolgoi is an operating Copper / Gold open pit mine with a brownfields underground mining project. The site is located in the Gobi Desert region of Mongolia. The reserves case for the underground project is in the order of 0.5 billion tonnes of ore to be mined from the 95,000 tonnes per day Hugo North Lift 1 (HNL1) panel cave mine with a 20-year operations life. There is also the potential for 3 further block cave districts to increase mine life beyond 100 years. 

Every Voice Matters

At Rio Tinto, we particularly welcome and encourage applications from Indigenous Peoples, women, the LGBTQIA+ 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.

Job application closes on September 1st , 2026

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Respect and Inclusion

At Rio Tinto, we particularly welcome and encourage applications from Indigenous Peoples, women, the LGBTQIA+ 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.