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Commercial Assistant

Job details
Posting date: 04 November 2025
Hours: Full time
Closing date: 04 December 2025
Location: E14 5HP
Remote working: On-site only
Company: ISS Facilities Services
Job type: Permanent
Job reference: 149836

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Summary

Commercial Assistant

Location: London, E14 5HP

Hours of work: 40

Contract Type: Permanent

We are seeking a proactive and organised Commercial Assistant to provide comprehensive administrative and commercial support across our project teams.

Job Description

Working closely with Project Managers, Quantity Surveyors, and Contract teams, you will play a key role in ensuring smooth project delivery, accurate financial tracking, and effective stakeholder communication throughout the lifecycle of all Move and Change projects.

This is a hands-on role for someone with strong administrative skills, commercial awareness, and attention to detail. You will assist in managing project cashflow, mitigating commercial risks, and maintaining accurate reporting while supporting day-to-day operations.

Key Responsibilities

Provide administrative and commercial support to Project Managers, Quantity Surveyors, and Contract teams.

Assist with invoicing, purchase orders, and supplier payments, ensuring accurate and timely processing.

Support project reporting, cashflow management, and commercial documentation.

Maintain and update project trackers to ensure the commercial position is clear and up to date.

Collaborate with internal stakeholders and cross-functional teams to ensure smooth project delivery.

Liaise with Quantity Surveyors to provide updates on workload and upcoming tasks.

Assist in preparing and presenting commercial reports to Contract Managers and other stakeholders.

Support compliance, governance, and internal reporting processes.

Professional and Personal Competencies/Qualifications

Strong administrative background; experience in invoicing, commercial support, or inventory management is a bonus.

Knowledge of Microsoft applications (Excel, Word, Teams, Outlook) and general IT competency.

Excellent communication, presentation, and interpersonal skills.

Ability to manage stakeholder expectations professionally and effectively.

Proactive, flexible, and adaptable with a willingness to learn new ways of working.

Strong attention to detail and ability to work accurately under pressure.

The Company

ISS is a world-leading workplace and facility management company, connecting people and places to make the world work better. Working with customers day by day, side by side, we understand every aspect of the user experience.

Through a unique combination of intelligent solutions, high standards and people who care, to help our customers achieve their purpose, whether it’s hospitals healing patients, businesses producing the next great innovation, or airports bringing passengers home to their families. ISS is committed to doing business the right way, taking its corporate responsibility very seriously. Our passion is people.

We offer you a challenging and exciting career in an organisation with people at its heart. In ISS, everyone has the opportunity to develop, grow and make a difference. #ISSGreatPeople #ISSTalent #PeopleMakePlace

ISS is proud to be a diverse and inclusive employer.

ISS welcomes all applicants regardless of age, disability, gender identity or gender reassignment, marital or civil partnership status, pregnancy or maternity, race (which includes race, colour, nationality, ethnic or national origin and caste), religion or belief, sex, sexual orientation or educational background.

We are a Disability Confident Committed (Level 2) employer, proudly supporting and promoting inclusive hiring practices in line with the UK government’s Disability Confident scheme.

Our passion for inclusivity and diversity makes ISS a more creative, productive and happy place to work.

If you have any further queries regarding this role, please contact the Resourcing Team by emailing resourcing.team@uk.issworld.com

Proud member of the Disability Confident employer scheme

Disability Confident
A Disability Confident employer will generally offer an interview to any applicant that declares they have a disability and meets the minimum criteria for the job as defined by the employer. It is important to note that in certain recruitment situations such as high-volume, seasonal and high-peak times, the employer may wish to limit the overall numbers of interviews offered to both disabled people and non-disabled people. For more details please go to Disability Confident.

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