Employer: Rosstone Professional Solutions We are looking for an experienced Commissioning Site Supervisor to lead pre-commissioning and commissioning activities on large-scale industrial and process plant projects across South Africa and the broader African region. This is a leadership role responsible for managing commissioning teams, coordinating multidisciplinary stakeholders, and ensuring safe, compliant, and efficient plant start-up and handover. Key Responsibilities * Lead and manage all pre-commissioning and commissioning activities across multiple systems and disciplines * Ensure equipment readiness, system completion, and handover in line with project milestones * Develop, review, and implement commissioning strategies, procedures, and schedules * Oversee commissioning teams, contractors, and vendors on-site * Drive compliance with South African regulations, project specifications, and international standards * Manage: + System walkdowns and punch listing + Mechanical completion and turnover processes + Functional testing and start-up activities * Identify project risks and implement mitigation and corrective actions * Provide regular reporting on progress, risks, and performance to project leadership * Coordinate closely with construction, engineering, and operations teams Health, Safety & Compliance * Champion a zero-harm safety culture aligned with South African HSE regulations * Ensure strict adherence to Occupational Health and Safety (OHS) Act requirements * Lead site safety initiatives, including: + Risk assessments and hazard identification + Permit-to-work systems + Toolbox talks and safety audits * Empower teams to stop unsafe work immediately Planning & Coordination * Lead commissioning planning aligned with overall project schedules and milestones * Coordinate mobilization of commissioning personnel, vendors, and specialist contractors * Interface with Site Managers, clients, and regulatory authorities * Ensure delivery targets for safety, quality, cost, and schedule are achieved Minimum Requirements * Bachelor’s degree in Engineering (Chemical, Mechanical, Electrical, or Automation) * Minimum 8–12 years’ experience in industrial or process plant environments * At least 5 years in a senior commissioning or leadership role * Strong experience in: + Pre-commissioning & commissioning execution + Large-scale EPC or brownfield/greenfield projects + Multidisciplinary systems (mechanical, electrical, instrumentation) * Solid knowledge of: + Commissioning tools, procedures, and documentation + Engineering drawings (P&IDs, single-line diagrams, etc.) + HSE systems and risk management Preferred Experience * Experience working on projects within Africa or remote site environments * Background in sectors such as: + Energy (oil & gas, renewables, power generation) + Mining & minerals processing + Petrochemical or heavy industry * Professional registration with Engineering Council of South Africa (ECSA) or eligibility to register Key Competencies * Strong leadership and team management skills * High level of accountability and decision-making ability * Excellent stakeholder management (clients, contractors, regulators) * Advanced troubleshooting and problem-solving capability * Ability to perform under pressure in fast-paced site environments Languages * English (required) * Additional African or international languages are advantageous