Senior Field Service Engineer - UK Travel: 100% field-based, UK travel with a significant portion of work in Slough plus some European trips. Employment Type: Full-time, permanent Are you an experienced electrical engineer with a passion for critical infrastructure and customer-focused service? We're looking for a Senior Field Service Engineer to join our team and take ownership of maintaining and optimising advanced power systems across high-demand environments. What You'll Be Doing * Lead and perform maintenance, installation, and commissioning of electrical systems in critical environments. * Troubleshoot and resolve electrical issues to minimise downtime. * Coordinate with vendors, subcontractors, and clients to ensure seamless service delivery. * Conduct site surveys, training sessions, load bank testing, and system acceptance. * Maintain accurate documentation and support root cause analysis for continuous improvement. * Promote safety, compliance, and operational excellence across all activities. What You'll Bring * Degree or diploma in Electrical Engineering (or equivalent). * 5+ years' experience in electrical maintenance within critical facilities or data centres. * Strong background in DC electrical systems, including UPS systems, batteries, generators, switchgear, and power distribution. * Proven leadership and communication skills. * Familiarity with health & safety standards and preventive maintenance practices. * Ability to work independently and respond effectively under pressure. Scope & Coverage * UK: Full responsibility for service delivery and system performance, with frequent work in Slough. * Europe: Occasional support and leadership on select projects. Tech & Tools * Proficiency in Microsoft Office (Word, Excel, PowerPoint). * Experience with ERP systems and financial tools (e.g., XERO). Other Requirements * Full UK driving license. * Fluent in English (additional languages are a plus) Desired Skills and Experience Electrical Engineering DC Electrical Systems UPS Systems Battery Systems Power Distribution Switchgear Maintenance Generator Systems Preventive Maintenance Predictive Maintenance Electrical Troubleshooting Load Bank Testing Equipment Calibration PAT Testing Ladder Inspections Site Surveys System Commissioning Should you require any support or assistance on your application, please contact your local Gi Group office directly. Gi Group Holdings Recruitment Limited are proud founding members of Menopause in business, pledge members for Neurodiversity in business, Disability committed members, Gold status pledge members for the Armed Forces Covenant, and Bronze trail blazers for Racial Equality matters. Gi Group Holdings Recruitment Limited group of companies includes Gi Recruitment Limited, Draefern Limited, Gi Group Recruitment Ltd, INTOO (UK) Limited, Marks Sattin (UK) Limited, TACK TMI UK Limited, Grafton Professional Staffing Limited, Encore Personnel Services, Gi Group Ireland Limited and Kelly Services (UK) Ltd. Gi Group Ireland Limited are acting as an Employment Agency in relation to this role. We are committed to protecting the privacy of all our candidates and clients. If you choose to apply, your information will be processed in accordance with the Gi Group Privacy Statement. To view a copy and to help you understand how we collect, use and process your personal data please visit the Privacy page on our Gi Group website.