Senior Electrical Commissioning Engineer - ( 194805 )

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?
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Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

The Senior Electrical Commissioning Engineer will support the Lead Electrical Commissioning Authority with the planning, coordination, execution, and documentation of electrical commissioning activities on data centre or other mission-critical projects.

Key responsibilities include:

Support electrical commissioning activities across construction, pre-functional testing, functional testing, and integrated systems testing.
Carry out site inspections, checks, and testing support.
Coordinate day-to-day commissioning activities with contractors, vendors, consultants, and other engineering disciplines.
Raise technical, quality, or safety issues clearly and early when something is not progressing correctly.
Support high-risk testing windows and out-of-hours commissioning activities when required.
Review electrical designs, drawings, and commissioning information with a focus on testability, maintainability, and operational readiness.
Assist with reviews of single line diagrams, control and protection philosophy, and electrical system interfaces.
Identify potential testing, operational, or sequencing issues and elevate comments to the Lead Commissioning Authority.
Support the production, review, and execution of commissioning documentation, including L2 and L3 checklists, contractor test records, L4 functional test scripts, and L5 Integrated Systems Testing documentation.
Record test results, observations, defects, and actions accurately.
Ensure red-lines, changes, and commissioning observations are captured and communicated.
Attend or support FATs as required, including for switchgear, UPS systems, and generators.
Carry out or support equipment inspections, pre-functional checks, and functional testing.
Verify that systems are ready before progressing to the next stage of testing.
Support Level 5 Integrated Systems Testing under the direction of the Lead Commissioning Authority.
Assist with normal operation testing, failure and recovery testing, and electrical system response verification.
Coordinate during IST with mechanical commissioning engineers, BMS / EPMS teams, load bank providers, contractors, and vendors.
Observe system behaviour during testing and provide clear feedback on findings, risks, and required actions.
Support compilation of commissioning records, test results, snag lists, and handover documentation.
Assist with O&M manual reviews, as-built reviews, training support, and final handover activities.

Required Qualifications:

Minimum 6–8 years of experience working with electrical systems on data centre or other mission-critical projects.
At least 3–4 years of hands-on involvement in commissioning activities.
Experience supporting Level 4 functional testing and Level 5 Integrated Systems Testing.
Proven site-based experience during testing, not only documentation review or witness roles.
Practical experience with most of the following electrical systems:
- MV and LV distribution systems
- UPS systems
- Diesel generators
- ATS / STS systems
- Protection and control systems
- Basic power monitoring systems
Understanding of how electrical systems interact during failure scenarios, recovery sequences, and integrated testing.
Ability to support commissioning activities on live construction sites and during critical test windows.
Strong attention to detail and a practical, site-focused approach.
Ability to identify, report, and elevate technical or safety concerns promptly.
Clear communication skills, especially when reporting issues, test observations, and commissioning risks.
Ability to work reliably under pressure, including during out-of-hours or high-risk testing activities.
Willingness to ask questions and challenge issues when something does not look correct.

Preferred Qualifications:

Electrical engineering degree or equivalent technical experience.
Commissioning certifications such as CCP, ACP, or equivalent.
HV authorisation or switching experience.
Experience attending or supporting FATs for switchgear, UPS systems, generators, or other critical electrical infrastructure.
Experience supporting data centre commissioning from construction through IST and handover.
Familiarity with BMS, EPMS, mechanical interfaces, and load bank testing coordination.
Experience supporting training, O&M reviews, as-built reviews, and client handover activities.
Interest in developing into a Lead Electrical Commissioning Authority role.

What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.
Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.
Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees. #LI-MW4

Required Qualifications

A minimum of 4 years of industry experience dealing with mechanical, electrical and controls disciplines
Proven ability to lead commissioning efforts from design through project completion
Should have a passion for sustainability and knowledge of the commissioning process and experience with design, installation and operation of building systems (including but not limited to: HVAC, electrical, mechanical, and controls)
Must be willing to travel to site-based locations as reasonably based on HDR needs
Must have demonstrated ability to troubleshoot HVAC, TAB, and Controls and have excellent report writing skills
Must have a solid understanding of operational requirements, safety requirements, code inspections and maintenance considerations
Strong written, verbal communication and time management skills; exceptional interpersonal skills; ability to interact with people at all levels
Technical knowledge of MEP systems and HVAC expertise
Proficiency with Microsoft Office Suite
Multitasking ability
Valid driver's license
An attitude and commitment to being an active participant of our employee-owned culture is a must

What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.
Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.
Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

Primary Location

PT-Sines

Other Locations

Portugal, PT-Sines-Sines

Schedule

Full-time

Employee Status

Regular

Job Posting

Jul 30, 2026

At HDR, we are committed to the principles of employment equity.

We are an affirmative action and equal opportunity employe r.
We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.

Ready to learn more? Let's work together to make great thingspossible.

We design solutions to the world's greatest challenges. We'realways looking for great talent to join our global teams.

Senior Electrical Commissioning Engineer

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