Job description

Job Opportunity: Surface Water Specialist - GoldSim Modelling
Location: Johannesburg, Gauteng, South Africa
Job Type: Permanent | Industry: Mining & Environmental Consulting

A leading environmental consultancy is seeking a skilled Surface Water Specialist to join their Johannesburg-based team. This role is ideal for a professional with strong expertise in GoldSim modelling and a background in water resources, hydrology, or environmental engineering-particularly within the mining industry.

You'll play a key role in developing, calibrating, and interpreting probabilistic water balance models to support sustainable water management in complex mining environments. Working as part of a multidisciplinary team, you'll contribute to both local and regional water resource assessments while integrating cutting-edge modelling with environmental and operational planning.

Key Responsibilities:

• Build and manage probabilistic water balance models using GoldSim.
• Conduct hydrological analysis and scenario-based risk assessments for water supply, contamination, and operational planning.
• Simulate contaminant transport and assess salt load dynamics, acid mine drainage potential, and geochemical speciation.
• Support water quality forecasting, dilution studies, and mine closure planning.
• Collaborate with engineers, hydrogeologists, and environmental scientists to integrate modelling into broader project frameworks.
• Prepare high-quality technical reports, presentations, and stakeholder documentation.
• Mentor junior staff and promote best practices in surface water modelling and data management.
• Contribute to compliance efforts aligned with local and international water regulations.

Required Qualifications & Skills:

• Bachelor's degree in Civil Engineering, Hydrology, Water Resources, or a related field (Master's preferred).
• Proficiency in GoldSim and a strong grasp of probabilistic modelling methods.
• Solid knowledge of hydrology, water quality dynamics, and mining-related water challenges.
• Experience with geochemical modelling and water quality forecasting techniques.
• Strong communication, analytical, and project coordination skills.
• Familiarity with GIS, data analysis tools, and integrated water management strategies is advantageous.

Why Apply?

• Work on high-impact mining and environmental projects across Africa.
• Join a respected consultancy with a focus on innovation and sustainability.
• Competitive compensation, team culture, and professional development support.

Interested?

If you're a technical expert ready to make a meaningful contribution to sustainable water management, we'd love to hear from you.

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About us

Allen & York have been matching purposeful people with purpose-led organisations for 30 years. We partner with our clients and candidates on roles that build an understanding of climate change, promote sustainability and create inclusive and responsible organisations, working towards a sustainable world for us all.

Committed to inclusiveness in the workplace, we aim to increase diversity across all areas and therefore welcome applications from all qualified candidates, regardless of their ethnicity, race, gender, religious beliefs, sexual orientation, age, or whether or not they have a disability.

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