Assistant Office Manager (Sizewell C)

Assistant Office Manager (Sizewell C)

Location: Sizewell C

Job Responsibilities

• Support the management and coordination of project administration procedures.
• Assist with the daily running, maintenance and safety of project offices and surrounding areas.
• Support office security processes, including visitor access and clearance requirements.
• Liaise with IT teams to support office technology, connectivity and equipment requirements.
• Manage office safety procedures, including safety checks, fire marshal coordination and first aid arrangements.
• Maintain office management records, registers and documentation.
• Coordinate workspace allocation and office arrangements for new starters.
• Manage office supplies, consumables and storage areas.
• Provide administrative support across all areas of the project.
• Assist with office and visitor inductions, including completion of DSE assessments.
• Coordinate site deliveries and booking-in procedures.
• Support document control processes and maintain project records.
• Process Goods Received Notes (GRNs) and assist with invoice matching and queries.
• Produce administrative reports and project updates when required.
• Maintain project time and attendance systems.
• Check and verify competency cards and workforce records.
• Maintain employee absence records, holiday planners and workforce information.
• Support onboarding, transfers and offboarding of employees.
• Assist with recruitment and training of additional administration support where required.
• Maintain plant and asset registers, including equipment movements.
• Support purchase card administration and reconciliation processes.
• Coordinate employee technology requirements, including laptops, tablets, software access and security permissions.

Qualifications

• Level 3 qualification in Business Administration, Office Management, or a related discipline (desirable).
• Relevant training or certification in administration, office management, or project support (desirable).
• IOSH Working Safely / IOSH Managing Safely qualification (advantageous).
• First Aid at Work qualification (desirable).
• Fire Marshal / Fire Warden training (desirable).
• DSE (Display Screen Equipment) assessor training (advantageous).
• Good IT literacy, including experience using Microsoft Office packages (Word, Excel, Outlook, Teams).

Essential Experience & Skills

• Previous experience in an office management, project administration, site administration, or coordination role.
• Experience supporting teams within construction, engineering, infrastructure, or similar project environments.
• Excellent organisational skills with strong attention to detail.
• Ability to manage multiple tasks, deadlines, and priorities effectively.
• Strong communication skills with the confidence to work with teams at all levels.
• A proactive approach with the ability to work independently and as part of a wider team.
• Experience maintaining accurate records, documentation, and administrative systems.

Systems and Processes

• Document control systems.
• Time and attendance systems.
• Finance and purchasing systems.
• Plant and asset management systems.
• Project administration software such as Causeway or Oracle.
• Managing office facilities, suppliers, deliveries, and site support services.
• Supporting onboarding, inductions, and workforce administration.
• Working within a secure, highly regulated, or large-scale project environment.

For this role you must have evidence of right to work in the UK. As a project, we do not discriminate on the grounds of age, gender, race, colour, religion, disability or sexual orientation, and we welcome applications from all sections of the community.

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