Evolution Systems Limited
SCMS/SAS Commissioning Engineer / (Specialist)
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Location: United Kingdom (UK-based, with site travel as required)
Contract Type: Permanent / Full-time
Industry: Power Transmission & Distribution / Substation Automation
We are seeking an experienced SCMS/SAS Commissioning Engineer (Specialist) to join our growing power systems team in the UK. This is a key technical role focused on the successful testing, commissioning, and handover of Substation Control & Monitoring Systems (SCMS) and Substation Automation Systems (SAS) for high-voltage and medium-voltage substations.
The Role
You will be responsible for the end-to-end commissioning of modern substation automation systems, ensuring they meet client specifications, national grid requirements, and international standards. You will work closely with project managers, design engineers, protection specialists, and clients to deliver reliable, secure, and fully functional SCMS/SAS solutions.
Key Responsibilities
- Plan, execute, and document Factory Acceptance Tests (FAT), Site Acceptance Tests (SAT), and full system commissioning of SCMS/SAS installations
- Configure, test, and troubleshoot Bay Control Units (BCUs), Intelligent Electronic Devices (IEDs), Remote Terminal Units (RTUs), station HMIs, and gateways
- Perform signal testing, interlocking verification, control sequences, measurement validation, and event/alarm checks
- Integrate and commission communication networks using protocols such as IEC 61850, IEC 60870-5-104, DNP3, Modbus, and others
- Ensure proper system integration with higher-level SCADA / Control Centres
- Carry out cybersecurity hardening and access control verification in line with current standards
- Produce high-quality commissioning documentation, test reports, as-built records, and handover packages
- Provide technical support during project execution and post-commissioning stages
- Mentor junior engineers and contribute to continuous improvement of commissioning procedures
- Travel to substation sites across the UK (and occasionally overseas) as required
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Essential Requirements
- Degree in Electrical Engineering, Power Systems, Automation, or related discipline (or equivalent experience).
- Proven hands-on experience in commissioning SCMS / SAS / Substation Automation systems
- Strong practical knowledge of IEC 61850 and other common substation communication protocols
- Experience with major vendor platforms (e.g. Hitachi, SEL, Schneider, Ingeteam, or equivalent)
- Solid understanding of substation primary and secondary systems, protection principles, and interlocking
- Ability to work independently on site and under pressure to meet project deadlines
- Excellent documentation, communication, and problem-solving skills
- Full UK driving licence and willingness to travel
- Right to work in the UK
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Desirable
- Experience working on National Grid, DNOs, or major utility projects in the UK
- Previous experience in design or engineering of SCMS/SAS systems
- Familiarity with GPS time synchronisation, network switches, and redundant architectures
- Knowledge of cybersecurity standards relevant to operational technology (e.g. IEC 62443, NCSC guidance)
What We Offer
- Competitive salary package commensurate with experience
- Performance-related bonus
- Pension scheme and private medical cover
- Professional development and training support
- Opportunity to work on high-profile UK and international substation projects
- Collaborative and technically strong team environment
To apply, please send your CV and a brief covering letter outlining your relevant commissioning experience to amr.abass@evosys.co.uk.
We are an equal opportunity employer and welcome applications from all suitably qualified candidates.
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