Role Overview

The Senior LV Electrical Engineer defines the low-voltage electrical distribution strategy for data center and mission-critical facilities, holds technical sign-off authority, and mentors junior and intermediate engineers.

The role owns compliance with IEC/EN standards and the Portuguese RTIEBT regime, leads protection and coordination strategy, and manages liaison with authorities, vendors, and clients from concept through commissioning, across CTS's EMEA project portfolio.

Key Responsibilities:

• Define the LV electrical distribution design strategy across switchgear, transformers, UPS, generators, PDUs, busbar systems, and LV switchboards.

• Provide technical authority and design sign-off for LV electrical packages.

• Lead protection and coordination studies and arc flash assessments, and approve final settings and equipment ratings.

• Conduct design risk assessments and lead value-engineering/optimisation reviews for LV scope.

• Lead multidisciplinary MEP/BIM coordination and enforce modelling standards and BIM execution plans.

• Oversee design and installation quality; lead commissioning and integrated testing of LV systems.

• Lead vendor and OEM negotiations and technical evaluation for switchgear, UPS, and generator packages (e.g., Schneider Electric, ABB, Eaton, Vertiv, Caterpillar/Cummins).

• Mentor junior and intermediate engineers and review their design deliverables.

• Liaise with authorities having jurisdiction (AHJ), DGEG, and clients on electrical compliance and certification matters.

Required Skills and Experience:

• Bachelor's degree in Electrical Engineering; Master's preferred.

• 10+ years in LV electrical engineering, including experience leading mission-critical/data-center design.

• Expert command of IEC 60364, IEC 61439, EN standards, and full RTIEBT design responsibility.

• Familiarity with DGEG registration and certified electrical installer requirements in Portugal.

• Advanced proficiency across AutoCAD Electrical, Revit MEP, Navisworks, and ETAP or SKM PowerTools for protection/coordination and arc flash studies.

• Deep knowledge of UPS technologies (Li-ion vs. VRLA), generator/genset specifications, MV/LV interface considerations, and OEM coordination.

• Proven leadership, mentoring, and client/authority engagement skills.