Administrator in Leiston

Location: Site-based, Sizewell C Nuclear Power Station, Suffolk

Hours: Full-time, Monday to Friday, 37.5 hours per week (08:00–16:00)

Make a real difference with Biffa as an Administrator, supporting one of the UK’s most significant infrastructure projects at Sizewell C Nuclear Power Station. This is a site-based administrative role within Biffa’s Specialist Services Industrial Division, supporting day-to-day operations including data entry, document control, weighbridge administration, and general office coordination. You will play a key part in ensuring accurate records, smooth communication, and efficient site operations.

This long-term project spans 9–12 years and forms part of a major waste management contract similar to our successful work at Hinkley Point C. Initially, operations are managed directly from the client’s site before transitioning to a dedicated Waste Consolidation Centre.

A quick look at the role

• Carry out general administrative duties to support site operations and the wider team.
• Ensure accurate record keeping, timely processing of documentation, and effective day-to-day coordination of administrative tasks across the site.

Key responsibilities

• Carry out general administrative duties to support site operations and the wider team.
• Process and maintain accurate records, ensuring all documentation is completed in line with company procedures.
• Support weighbridge operations, including data entry and record keeping.
• Assist with processing supplier invoices and maintaining accurate filing systems.
• Maintain and update customer, contractor, and operational data across relevant systems.
• Respond to internal and external enquiries in a professional and timely manner.
• Support booking and coordination of waste movements and lift requirements when required.
• Manage and update document control systems (e.g. Teamcentre), ensuring records are current and accurate.
• Support reporting requirements by extracting and compiling basic operational data where needed.

Essential requirements

• Previous experience in an administrative or office-based role.
• Strong organisational skills with good attention to detail.
• Confident using Microsoft Office (Word, Excel, Outlook, Teams).
• Ability to communicate clearly with colleagues, contractors, and customers.
• Full UK driving licence.

Additional requirements

• Successful candidate will be required to complete a CITB Operative Test.

Desirable experience

• Previous experience in logistics, construction, waste management, or a similar environment.
• Familiarity with document control systems or weighbridge operations.
• IOSH General Certificate (or willingness to work towards it).

And here’s why you’ll love it at Biffa.

• Ongoing career development, training and coaching – Because if you don’t grow, we don’t grow.
• Competitive salary.
• Generous pension scheme.
• Retail and leisure discounts.
• Holiday and travel discounts.
• Life cover.

At Biffa, we love working with waste. Whether we’re turning it into sustainable power, finding new ways to recycle it or simply keeping it off the streets, we believe every day is an opportunity to improve the lives of millions. It’s a view that’s shared by our 11,500+ people around the country, who trust us to provide them with a career that’s always rewarding, often challenging, but never dull. And it’s why we’re the UK’s No. 1 choice for business waste management.

Dedicated to diversity.

Being inclusive is core to our culture at Biffa; we believe different ideas, perspectives and backgrounds are key to developing a creative and effective working environment that represents our communities and generates the best outcomes for colleagues, customers and stakeholders, which is why you’ll find us championing diversity, equity and inclusion at every turn.