Senior Authorised Person: Operations Engineer (HV/LV)

Last Mile Infrastructure Limited; Oxford; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Holiday entitlement

Pension contribution

Salary sacrifice

Cycle to work

Life assurance

Employee discounts

Refer a friend

Private medical insurance

Sick pay

Job summary

Last Mile is seeking a Senior Authorised Person (Operations Engineer) to lead and mentor a technical team across field sites, ensuring safe, compliant construction and energisation of 11kV and LV networks.

You will coordinate with DNOs, perform testing, and support Self-Connect activities while traveling to sites around London and beyond. A strong safety background and DNO authorisation are essential for success.

Qualifications

• HNC or equivalent qualification with knowledge of 1ph and 3ph systems at LV/HV.
• Current or previous DNO/iDNO 11kV AP/SAP Authorisation.
• A recognised supervisory Health & Safety qualification (e.g. SSSTS or IOSH).

Responsibilities

• Supervise and mentor staff to support development and enhance company performance.
• Conduct competency assessments as an Assessing Officer to ensure compliance with authorisation standards.
• Perform pre-commissioning and testing of 11kV & LV switchgear, including IR, continuity, and pressure testing.
• Liaise with DNO engineers for final connections, energisation of substations, and IDNO/DNO LV networks.
• Plan and execute DNO LV & HV Self-Connect activities and support fault location/repair.
• Install and test CT Metering wiring in line with COP3/COP5 & P283.

Skills

Supervision

Mentoring

Competency assessments

Electrical testing

Education

HNC or equivalent

SSSTS or IOSH

Tools

11kV switchgear

CT Metering wiring

Job description

Last Mile is seeking a Senior Authorised Person (Operations Engineer) to lead and mentor a technical team across field sites, ensuring safe, compliant construction and energisation of 11kV and LV networks.

You will coordinate with DNOs, perform testing, and support Self-Connect activities while traveling to sites around London and beyond. A strong safety background and DNO authorisation are essential for success.