Thornton Tomasetti applies engineering and scientific principles to solve the world’s challenges. An independent organization of creative thinkers and innovative doers collaborating from offices worldwide, our mission is to bring our clients' ideas to life and, in the process, lay the groundwork for a better, more resilient future. We provide support and opportunities to our employees to achieve their full potential and cultivate a rewarding career.
The RoleThornton Tomasetti is seeking an organised, proactive, and service-oriented Administrative Assistant to support the smooth operation of our Romsey office, which forms part of Thornton Tomasetti’s Protective Design & Security (PD&S) practice.
The role will provide a broad range of administrative assistance, including, project and office administration, travel booking, and security functions. The successful candidate will be comfortable managing competing priorities, handling confidential information, and working with colleagues across the Romsey office, PD&S practice, and wider firm.
What You’ll DoSupport the day-to-day administration and smooth running of the Romsey office.
Assist with office supplies, facilities, equipment, visitors, meetings, and general office logistics.
Act as a helpful point of contact for office-related queries.
Maintain accurate office records, contact information, registers, and filing systems.
Assist with office events, meetings, hospitality, and internal communications.
Provide administrative support to project teams, project managers and office manager
Assist with purchase-order, invoice, expense, and other project-related administration.
Handle project and client information accurately and confidentially.
Arrange domestic and international travel, accommodation, ground transportation, and meeting facilities for colleagues.
Provide administrative support to the Security Controller and the wider PD&S practice.
Maintain appropriate security-related records, registers, contact lists, and filing systems.
Handle security-sensitive and confidential information with discretion.
Previous experience in an administrative assistant, project administrator, or similar role.
Strong organisational skills, attention to detail and the ability to manage multiple priorities.
Excellent written and verbal communication skills.
Strong proficiency in Microsoft Office, including Outlook, Word, Excel, and Teams.
Experience supporting projects, records, document control, or professional-services teams.
Discretion and sound judgement when handling confidential or sensitive information.
A proactive, service-oriented approach and willingness to take ownership of tasks.
Ability to work effectively with colleagues across the office and wider Thornton Tomasetti organisation.
Experience in a security, engineering, construction, or other regulated environment would be beneficial but is not essential as training will be provided.
Must be able to obtain and maintain UKSV Security Clearance.
Thornton Tomasetti is proud to be an equal employment workplace. Individuals seeking employment at Thornton Tomasetti are considered without regards to age, ancestry, color, gender (including pregnancy, childbirth, or related medical conditions), gender identity or expression, genetic information, marital status, medical condition, mental or physical disability, national origin, protected family care or medical leave status, race, religion (including beliefs and practices or the absence thereof), sexual orientation, military or veteran status, or any other characteristic protected by federal, state, or local laws.
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Skills Required
- Previous experience as an Administrative Assistant, Project Administrator, Office Administrator, or in a similar role
- Strong organisational skills and excellent attention to detail
- Ability to manage multiple priorities and deadlines effectively
- Excellent written and verbal communication skills
- Strong proficiency in Microsoft Office, particularly Outlook, Word, Excel, and Teams
- Experience supporting projects, maintaining records, document control, or working in a professional-services environment
- Sound judgement and discretion when handling confidential or sensitive information
- Proactive, collaborative, service-oriented approach with willingness to take ownership
- Ability to build effective working relationships across teams and organisational levels
- Experience in security, engineering, construction, defence, or another regulated environment
- Ability to obtain and maintain the appropriate UK Security Vetting clearance required for the role
What We Do
Thornton Tomasetti is an American science and engineering consulting firm that applies scientific and engineering principles to solve the world's challenges. They specialize in the design, construction, and performance of buildings and structures, offering expertise in structural, facade, and forensic engineering, as well as sustainable design and applied science for a diverse global clientele across various industries.
