JOB PURPOSE: 

The Power Supply Supervisor is responsible for overseeing the execution and monitoring of electrical maintenance activities on-site, ensuring the reliability and safety of power supply systems across the Metro L3 network. This role leads a team of technicians, supervises fault diagnosis and troubleshooting, and manages tools, resources, and work quality. By ensuring compliance with safety and quality standards, the supervisor supports the continuous operation of metro services and contributes to the long-term sustainability of the power infrastructure. He can be also manage the power control point to ensure a monitoring of the power supply systems.

RESPONSIBILITIES/DUTIES 

Team Leadership & Site Supervision

• Lead on-site activities and provide hands-on supervision to ensure the effective coordination and performance of team members.

• Support team development by integrating and training new staff and interns, promoting a collaborative and productive work environment.

• Address and help prevent potential conflicts within the team through proactive communication and leadership.

Fault Diagnosis & Technical Oversight

• Prepare technical reports, record equipment failures, and analyze incident history to support informed decision-making.

• Accurately diagnose faults and execute appropriate troubleshooting, validation, testing, and verification procedures to ensure problem resolution.

Equipment & Resource Management

• Oversee the availability and proper use of tools, spare parts, and materials, ensuring they are effectively managed to support uninterrupted operations.

• Organize workspace logistics and ensure timely task completion in alignment with project timelines and priorities.

Quality Control & Reporting

• Monitor the quality of all work performed, ensuring strict adherence to Quality Assurance protocols.

• Collect, document, and transmit technical data to maintain traceability of maintenance and operational activities.

Operational Safety & Handover

• Ensure the complete clearance of the site after maintenance activities, confirming that operations can safely resume without disruption.

• Complete all required checklists and promptly communicate any issues or anomalies to the Power Supply Engineer.

• Manage the PCP and ensure all the operation is done according to the SOP.

ESSENTIAL QUALIFICATIONS, KNOWLEDGE & EXPERIENCE

QUALIFICATIONS:

• Diploma in Electrical Engineering or a related technical field.

• Advanced technical studies or certifications are an asset.

KNOWLEDGE:

• Strong knowledge of electrical, mechanical, and electronic systems.

• Proven ability to lead on-site teams and coordinate maintenance activities.

• Proficient in troubleshooting techniques and fault analysis.

• Skilled in reading and interpreting single-line diagrams and technical schematics.

• Solid understanding of electrical safety procedures (formal electrical habilitation is an advantage).

• Experienced in using electrical measuring and testing equipment.

• Familiar with general maintenance practices and principles.

• Good understanding of electrical protection systems, including voltage relays, current transformers (CTs), and voltage transformers (VTs).

• Hands-on experience with medium and low voltage installations.

• Technical proficiency in working with transformers, circuit breakers, uninterruptible power supplies (UPS), batteries, programmable logic controllers (PLCs), control panels, cables, and DC systems (including circuit breakers, rectifiers, and protective devices).

• Competent in computer use and standard software applications (Microsoft Office suite).

EXPERIENCE:

• 5 to 7 years of experience in electrical maintenance, including a minimum of 3 years in substation operations and maintenance.

• Previous experience in the railway sector is a strong plus. 

DESIRED BEHAVIORS & EXPERIENCES

• Safety-First Mentality: Demonstrates a strong commitment to electrical safety protocols and actively promotes a culture of safety on-site.

• Leadership & Accountability: Leads by example, takes responsibility for team performance, and fosters a results-oriented work environment.

• Technical Confidence: Approaches complex technical issues with confidence, using sound judgment and experience to guide troubleshooting and decision-making.

• Clear Communication: Communicates effectively with team members, engineers, and external stakeholders to ensure transparency, understanding, and alignment.

• Organizational Discipline: Plans and prioritizes tasks effectively, maintains accurate records, and ensures timely execution of maintenance activities.

• Team Collaboration: Supports a spirit of teamwork by encouraging collaboration, sharing knowledge, and resolving conflicts constructively.

• Adaptability Under Pressure: Remains focused and professional when responding to urgent faults, shifting priorities, or unexpected incidents.

• Commitment to Quality: Upholds high standards in all tasks, ensuring maintenance work is performed in full compliance with quality procedures and operational expectations.