Office Administrator in Cardiff

Job Title

Office Administrator

Location

St Mellons, Cardiff

Reporting To

Operations Manager & Company Director

Role Purpose

The Office Administrator will provide essential administrative and organisational support to the business, ensuring the smooth day-to-day operation of the office. This is a key support role with clear opportunities to progress into more senior administrative, commercial, or operational positions as experience and capability grow.

Key Responsibilities

Administration & Office Support

• Provide general administrative support to the management and operational teams
• Manage incoming and outgoing correspondence (email, post, phone calls)
• Maintain accurate digital and hard-copy filing systems
• Prepare letters, reports, spreadsheets, and basic documentation
• Manage diaries, meetings, and travel arrangements where required

Commercial & Project Support

• Assist with preparation and issue of purchase orders, delivery notes, and invoices
• Support project teams with document control (drawings, RFIs, TQs, specifications)
• Maintain project folders and ensure records are up to date
• Assist with timesheets, labour records, and basic cost tracking

Finance & HR Support

• Support basic finance administration (invoice logging, expense tracking, supplier records)
• Assist with payroll administration (timesheets, holiday records, absence tracking)
• Maintain training records and staff certification logs
• Assist with onboarding documentation for new starters

Compliance & Systems

• Support management of policies, procedures, and internal records
• Assist with audits, accreditations, and compliance documentation
• Maintain company databases and CRM systems where applicable

Skills & Experience

Essential

• Strong organisational and time-management skills
• Confident using Microsoft Office (Word, Excel, Outlook)
• High attention to detail and accuracy
• Professional and confident communication skills
• Ability to work independently and manage multiple tasks

Desirable

• Previous experience in an office administration role
• Experience within construction, engineering, or a similar industry
• Familiarity with document control systems
• Basic understanding of invoicing or accounts processes

Personal Attributes

• Reliable, proactive, and well organised
• Willing to learn and take on responsibility
• Positive and professional attitude
• Able to work as part of a small, growing team
• Comfortable dealing with confidential information

Progression & Development Opportunities

This role is designed with clear progression pathways, which may include:

• Office Manager
• Commercial Administrator / Assistant Quantity Surveyor Support
• Quantity Surveyor

The company is committed to development through:

• On-the-job training and mentoring
• External training courses where appropriate
• Increased responsibility as skills and confidence develop

Progression will be based on performance, reliability, and the individual\’s interests and strengths.

Salary & Benefits

• Competitive salary (dependent on experience)
• Training and development opportunities
• Pension scheme
• Holiday entitlement in line with company policy
• Opportunity to grow with an expanding business

Job Type: Full-time

Pay: From £24,420.00 per year

Benefits:

• Canteen
• Company pension
• Free parking
• On-site parking

Work Location: In person