Oyu Tolgoi’s workforce today is more than 97 per cent Mongolian, and 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.
The opportunity
We are looking for one (1) Specialist Electrical and Instrumentation in Oyu Tolgoi LLC – Concentrator Maintenance Department based Oyu Tolgoi Site with roster of 7 days on and 7 days off. This role is 1-years fixed term contract.
Provides support and assistance to the implementation of asset management programs/projects/engagements of work. Supports the implementation of the discipline Engineering framework, ensuring safe, cost-effective, and reliable design and installations are implemented and maintained
What the role entails:
- Development and Optimization of Electrical Systems
- Develop and optimize HV and LV electrical maintenance systems for the Concentrator Maintenance Department.
- Collaborate with OEM (Original Equipment Manufacturers) such as Siemens, ABB, GE, TECO, and FLSmidth for technical support and service agreements related to Concentrator Maintenance E&I assets.
- Develop and execute long-term asset management strategies to reduce downtime and enhance reliability for critical concentrator electrical assets.
- Manage and optimize PLC systems (Siemens, Allen-Bradley, ABB) and Emerson DeltaV for improved automation and process control.
- Oversee the operation and maintenance of the Larox filter control system to ensure reliable performance and effective filtration.
- Advise on preventative maintenance optimization to improve concentrator equipment reliability.
- Provide expert support for the operation and troubleshooting of the GE Ball Mill Clutch System to maintain consistent operational performance.
- Testing, Analysis, and Compliance
- Perform regular testing and analysis of relay protection systems to ensure they meet design standards, including:
- IEC (International Electrotechnical Commission)
- IEEE (Institute of Electrical and Electronics Engineers)
- ANSI (American National Standards Institute)
- Regulatory requirements
- Advise on compliance with electrical standards for the Concentrator Maintenance E&I team.
- Implement Functional Safety (FS) and Process Safety (PS) standards within concentrator operations.
- Conduct regular system health checks and diagnostics on PLC hardware and Emerson DeltaV systems to ensure operational integrity and compliance.
- System Upgrades and Performance Optimization
- Collaborate with OEM ABB SMEs and engineering teams to upgrade, replace, and optimize protection systems using ETAP or equivalent software.
- Manage and optimize ABB M-Link and M-Control systems to improve concentrator operational efficiency and reliability.
- Lead system integration and performance improvement for Emerson DeltaV and PLC-based automation platforms.
- Support capital projects, system upgrades, and commissioning activities for Concentrator E&I equipment.
- Troubleshoot and diagnose issues with:
- Induction motors, synchronous motors, and SAG mill Gearless Mill Drives (GMDs)
- VFDs (Variable Frequency Drives) and cyclo converters within the concentrator
- Larox filter control systems to ensure consistent and reliable filtration performance
- GE Ball Mill Clutch System to prevent operational failures and minimize downtimeTechnical Support and Troubleshooting
- Provide troubleshooting and defect elimination for control systems and electrical equipment issues within the concentrator plant.
- Perform diagnostics and troubleshooting for relay protection systems and major electrical assets.
- Ensure rapid response and resolution for unplanned downtime and equipment failures.
- Support ABB M-Link and M-Control system performance analysis and troubleshooting.
- Diagnose and resolve complex issues related to Emerson DeltaV, PLC systems, and GE Ball Mill Clutch System to maintain operational stability.
- Ensure accurate configuration and calibration of field instruments (pressure, flow, temperature, level).
What you will need for this role
- Bachelor’s degree in electrical engineering, Instrumentation Engineering, Automation Engineering, or a related field.
- A master’s degree in electrical or Instrumentation Engineering is preferred.
- Professional certification in Asset Management (e.g., IAM or CMRP) is an advantage.
- Familiarity with industry-specific software such as ETAP or equivalent for system modeling and analysis.
All interested candidates should submit the following documents:
Please click HERE to go to Oyu Tolgoi LLC Online Application System or go to www.ot.mn, select your vacancy and click on the link in the bottom.
Please make sure to attach the following documents:
- CV (in English and Mongolian)
- Cover Letter (in English and Mongolian)
What we offer:
- A competitive salary package
- Access to top tier family-friendly health and medical programs
- Retirement/Savings Plan*
- My Share – Global Employee Share Plan
- A comprehensive leave policy that covers all moments that matter in life (vacation/annual, cultural leave, paid parental leave, short term sick leave, paid holidays
- Other benefits and favourable employment conditions