The GIS Substation Maintenance Supervisor is responsible for supervising and coordinating maintenance activities on high-voltage gas‑insulated substations (GIS), ensuring safe, efficient, and high‑quality execution in line with Siemens Energy standards and industry best practices. This role requires a solid understanding of the overall operation of high‑voltage substations, a strong commitment to electrical safety, and mandatory adherence to safety procedures and Zero Harm principles. The supervisor oversees preventive and corrective maintenance of GIS equipment—including circuit breakers, disconnectors, and auxiliary systems—while ensuring adherence to OEM procedures and technical guidelines. The role also includes safe handling, monitoring, and management of SF6 gas in compliance with environmental and safety regulations, support basic fault diagnosis and troubleshooting activities, and lead and coordinate field service teams and subcontractors. The supervisor prepares technical reports, analyzes simple failures, and proposes corrective actions,



leveraging experience to support continuous improvement and reliable operation of GIS substations.

How You’ll Make an Impact
- Perform scheduled preventive and corrective maintenance on high‑voltage equipment, including Gas‑Insulated (GIS) and Air‑Insulated (AIS) switchgear.
- Ensure strict implementation of electrical safety regulations and safe handling practices for SF6 gas, promoting a Zero Harm culture on site.
- Coordinate and manage field technicians and subcontractors, assigning tasks, monitoring performance, and verifying quality of execution.
- Perform and support basic fault diagnosis on GIS equipment, analyzing simple failures and defining corrective actions based on operational experience.
- Prepare and deliver detailed technical reports on maintenance activities, including findings, identified issues, and recommendations for improvement.

What You Bring
- Technical degree in Electrical Maintenance, Electrome

📌 Técnico(a) supervisor(a) para montaje y mantenimiento de subestaciones encapsuladas en Gas
🏢 Siemens Energy
📍 Colombia