Senior Electrical Engineer

H&H is offering an exciting hybrid opportunity for a Senior Electrical Engineer to join our London office in the vibrant London Bridge area.

With over 139 years of experience, H&H is a trusted full-service infrastructure engineering firm. Our clients, including infrastructure owners, contractors, and colleagues, rely on us for intricate and innovative engineering solutions. They trust our time-tested ability to manage the entire life cycle of a project, from the study and planning phase through to design and construction. With over 600 talented employees located across 32 offices nationwide, H&H can efficiently and effectively handle assignments of all sizes, types, and delivery methods around the country and across the globe.

Responsibilities

• Lead and deliver the electrical design of heavy movable structures such as movable bridges, locks, dams, travellers, and roofs, including power distribution, lighting, and control systems for operation and safety.
• Design, specify, and review control system architectures, including PLC-based systems, instrumentation, sensors, actuators, HMIs, and interfaces with mechanical and hydraulic systems.
• Prepare, review, and approve electrical and control system calculations, control philosophies, I/O schedules, cause-and-effect matrices, specifications, drawings, and testing documentation in accordance with UK and international standards.
• Support and oversee factory acceptance testing (FAT) and site acceptance testing (SAT), including review of test procedures, witnessing tests, and resolution of non-conformances.
• Lead and support site commissioning activities, ensuring control systems operate safely, reliably, and in accordance with the design intent and operational requirements.
• Provide technical input into the operation, maintenance, and fault-finding of control systems, including review of O&M manuals and support during the defects and handover period.
• Provide technical leadership and guidance to junior engineers and designers, including oversight of CAD production using AutoCAD, MicroStation, and 3D modelling software.
• Coordinate closely with mechanical, structural, and civil disciplines to ensure fully integrated, operable, and maintainable designs.
• Support the project team during tender and construction phases, including responding to technical queries and reviewing contractor submissions and temporary works interfaces.
• Undertake site visits and field work to inspect electrical and control system installations, witness testing and commissioning activities, and support defect resolution.
• Interface with clients, contractors, operators, and external stakeholders, providing clear technical input and representing H&H in a professional capacity.

Requirements

• 15 to 20 years of experience in a similar electrical engineering or control systems role.
• Degree / HNC / HND / BTEC / NVQ qualified in Electrical Engineering, Control Engineering, or a
• related discipline.
• 15 to 20 years of experience in electrical and control systems for heavy infrastructure, industrial machinery, movable bridges, locks, dams, ports, or transportation projects (preferred).
• Demonstrated knowledge and interest in power distribution, control systems, instrumentation, and
• lighting.
• Proven experience in the design, testing, commissioning, and maintenance of PLC-based control
• systems and associated field devices.
• Ability to develop and review control philosophies, I/O schedules, cause-and-effect diagrams, wiring
• diagrams, and technical specifications.
• Familiarity with UK and international electrical standards and regulations (e.g. BS, EN, IEC, IET, Wiring Regulations).
• Ability to carry out electrical and control system calculations, including load assessments, cable sizing, and protection coordination.
• Previous experience supporting site installation, FAT/SAT, and commissioning activities in an operational or construction environment.
• Strong theoretical electrical engineering knowledge and practical understanding of safety-critical systems and interlocks.
• Exceptional attention to detail, with strong analytical and problem-solving abilities.
• Excellent communication skills, both verbal and written, with the ability to interface with clients, contractors, and multidisciplinary teams.
• Proficient in the use of Microsoft Office applications.
• Excellent organisational and time management skills, with the ability to manage multiple priorities.
• Ability to work independently as well as part of a small, multidisciplinary engineering team.

Benefits

Competitive salary range of £100,000-£120,000 per annum, dependent on experience.

27 days of annual leave for work-life balance.

Opportunities to participate in frequent social gatherings and team-building events.

A hybrid working model with flexible hours to promote a healthy work-life balance.

Structured development processes and clear career progression paths.

H&H is an equal-opportunity employer. We encourage applications from candidates of all backgrounds and experiences.