Senior Electrical Design Engineer – Data Center Systems

CTS Group; Porto; Hybrid; EUR 45,000 - 60,000; Full time

Benefits offered by this job

Health insurance

Hybrid work options

Relocation assistance

Job summary

CTS Group is seeking an experienced Electrical Design Engineer (Electrical Specialist) to join our infrastructure team in Portugal. You will design and detail MV/LV power distribution, create GA layouts, and ensure high-density power delivery for mission-critical data centers.

You will collaborate with structural, mechanical, and civil teams, map control logic for ATS and PDUs, and verify compliance with Uptime Institute standards and EN 50600.

Qualifications

• Bachelor’s or Master’s degree in Electrical/Electrotechnical Engineering.
• Active registration with OE or OET is highly preferred to sign off on technical documentation.
• Advanced proficiency in EPLAN Pro Panel or AutoCAD Electrical; BIM/Revit is a strong plus.
• 3+ years of experience designing critical infrastructure power systems (data centers, heavy industrial power generation, or high-voltage substations).
• Full professional proficiency in English; knowledge of Portuguese is a plus but not mandatory.

Responsibilities

• Design, modify, and review multi-line diagrams, SLDs for MV/LV distribution networks.
• Create GA drawings and 3D layouts for electrical rooms, UPS, and generator yards.
• Map control schematics and interlocking logic for ATS and PDUs.
• Coordinate with structural, mechanical, and civil teams for routing heavy overhead cabling and busways.
• Ensure compliance with data center tier standards (Uptime Institute Tier III/IV) and EN 50600.

Skills

Schematic & multi-line design

GA drawings

ATS & PDUs control logic

Electrical safety knowledge

English proficiency

Portuguese language asset

Education

Electrical/Electrotechnical Engineering (Bachelor’s or Master’s)

Tools

EPLAN Pro Panel

AutoCAD Electrical

BIM / Revit

Job description

About the Role

We are seeking an experienced Electrical Design Engineer (Electrical Specialist) to join our growing infrastructure team in Portugal. In this role, you will be the custodian of our critical power architecture, designing and detailing complex multi-line diagrams and General Arrangement (GA) layouts. You will directly enable the high-density power delivery and 2N/N+1 redundancy frameworks required to sustain our mission-critical data center operations.

Key Responsibilities

• Schematic & Multi-Line Design: Develop, modify, and review detailed multi-line diagrams, single-line diagrams (SLDs), and wiring schematics for Medium Voltage (MV) and Low Voltage (LV) distribution networks.
• Spatial Physical Planning (GA): Produce highly accurate General Arrangement (GA) drawings and 3D equipment panel layouts for electrical rooms, battery rooms (UPS), and generator yards, ensuring strict maintenance access and clearance compliance.
• Control Logic & Redundancy Integration: Map out control schematics and interlocking logic for Automatic Transfer Switches (ATS), power distribution units (PDUs), and protection relay systems.
• Cross-Disciplinary Coordination: Collaborate with structural, mechanical (HVAC/Cooling), and civil teams to route heavy overhead cable containment systems and busways without interference.
• Compliance Sign-Off: Review blueprints against data center tier availability standards (Uptime Institute Tier III/IV) and European electrical safety codes (EN 50600).

Required Qualifications & Skills

• Education: Bachelor’s or Master’s degree in Electrical/Electrotechnical Engineering.
• Professional Registry: Active registration with the Ordem dos Engenheiros (OE) or Ordem dos Engenheiros Técnicos (OET) is highly preferred to sign off on technical documentation.
• Software Mastery: Advanced proficiency in EPLAN Pro Panel or AutoCAD Electrical is mandatory. Experience with BIM/Revit is a strong plus.
• Industry Experience: 3+ years of experience designing critical infrastructure power systems (Data Centers, heavy industrial power generation, or high-voltage substations).
• Languages: Full professional proficiency in English (working language). Knowledge of Portuguese is an asset but not mandatory.

What We Offer

• Competitive salary benchmarked for the Portuguese data center premium space.
• Comprehensive health insurance package.
• Flexible/hybrid work options (role-dependent).
• Clear career progression paths within an expanding, high-growth global industry.
• Assistance with relocation or tax framework optimization (e.g., Programa Regressar) if applicable.