{"id":3792121,"url":"https://alion.io/job/optim-g-tunnelling-engineer","title":"Tunnelling Engineer","company":{"id":4497696,"name":"Optim-G","domain":null,"url":"https://alion.io/company/optim-g-pty-ltd-ta-optim-g","size_band":null,"is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":{"grade":"A","score":100,"open_postings":5,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":5,"computed_at":"2026-11-15T07:52:55Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Johannesburg, South Africa"],"countries":["ZA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-28T12:43:09Z","employer_posted_date":null,"last_verified_at":"2026-10-28T12:43:09Z","board_verified":false,"closed_at":null,"days_open":18,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":18},"description":"Introduction\nOur client, a Mining Engineer at a multidisciplinary infrastructure advisory and technical services firm operating across South Africa is looking for a Tunnelling Engineer to join their team in Midrand. The successful incumbent will be responsible for the planning, design and technical oversight of safe and cost-effective tunnelling projects.\n\nDuties & Responsibilities\n\n Tunnel design and planning: Plan and design tunnel layouts, excavation sequences, support systems and construction methodologies for mining and infrastructure projects.\n\n Ground conditions and support: Assess geotechnical and rock mass conditions, and specify appropriate ground support and ventilation requirements.\n\n Technical advisory: Conduct feasibility studies, cost estimates and technical reviews for tunnelling projects and site expansions.\n\n Construction oversight: Oversee tunnel excavation and construction activities, including drilling, blasting, mucking and lining, to ensure quality, productivity and programme adherence.\n\n Risk and quality management: Identify, assess and manage technical, safety and construction risks, and review contractor designs and methods.\n\n Compliance and safety: Ensure adherence to South African regulations, including the Mine Health and Safety Act (MHSA), the Occupational Health and Safety Act (OHSA) and environmental requirements.\n\n Stakeholder coordination: Work alongside geologists, geotechnical and civil engineers, environmental consultants, quantity surveyors and project managers on multidisciplinary projects.\n\n Mentorship and leadership: Provide technical leadership and guide and mentor junior engineers.\n\nDesired Experience & Qualification\n\n B-Tech, BEng or BSc in Mining Engineering.\n\n Registered as a Professional Technologist Engineer (PrTechEng) or Professional Engineer (PrEng) with ECSA.\n\n Minimum 10 years' relevant professional experience in tunnelling engineering.\n\n Sound understanding of South African mining legislation and safety/environmental compliance frameworks.\n\n Strong leadership, project management, technical analysis and problem-solving abilities.\n\nPackage & Remuneration\nMarket 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