Crissier
Project Assistant
- 07 July 2026
- 100%
- Crissier
Job summary
Join Implenia, a leading construction provider in Switzerland, shaping futures. Enjoy a diverse workplace with growth opportunities and benefits.
Tasks
- Manage project-related contractual documents and correspondence.
- Support project managers with administrative tasks efficiently.
- Organize site offices and events, ensuring smooth operations.
Skills
- Experience in administrative roles and project support required.
- Strong organizational and communication skills essential.
- Proficiency in financial tracking and document management.
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About the job
As a leading service provider in the construction and real estate sector in Switzerland, Implenia develops, realises and manages living spaces, work environments and infrastructures for future generations in Switzerland and Germany. Implenia also offers tunnel construction projects and related infrastructure in other markets. The company brings together under one roof the expertise of highly qualified consulting, development, planning and execution units to form an integrated and leading multinational construction and real estate service provider. Based in Opfikon, near Zurich, Implenia employs more than 8,000 full-time equivalents across Europe and achieved a turnover of 3.5 billion Swiss francs in 2025. For more information, please visit implenia.com .
Tasks - Administrative and Organisational
- Editing, managing and monitoring contractual documents related to the project (contract, amendment, final statement)
- Assisting project managers and site supervisors with administrative tasks
- Managing on-site construction offices (reception, mail, supply orders, conference room management, ...)
- Writing various correspondence, emails, notes.
- Managing and entering bids, contracts, company amendments (quotes, reports...)
- Proofreading, correcting and distributing various minutes (MO meetings, site meetings)
- Creating and monitoring databases, internal and external information, ...
- Registering, filing, scheduling, archiving files, documents, notes and mail.
- Ensuring document updates according to certain regulations and directives
- Organising site events (groundbreaking, topping out ceremony, inauguration, others)
- Preparing project presentation materials (e.g. PowerPoint)
- Establishing and preparing quotes for clients
- Ensuring administrative follow-up of PPE files
- Updating and maintaining tracking tables and databases
- Ensuring administrative follow-up of buyers throughout the process
- Coordinating exchanges between buyers, companies, partners and managers
- Monitoring buyer modifications and their documentation
Tasks - Finance and Logistics
- Issuing invoices and monitoring debtor/creditor billing
- Supporting project accounting
- Exporting financial data from SAP to the management spreadsheet
- Checking documents such as invoices, bank guarantees,
- Collaborating with the accounting department: monitoring urgent payments, various enquiries, reminders.
- Monitoring budgets and assisting in the preparation of financial reports
- Ensuring deadlines are met and smooth flow of information
- Issuing and monitoring client/supplier billing
Task - Communication and Interpersonal
- Being a point of contact and reference for internal and external teams
- Regularly communicating important information
- Collaborating with another assistant and providing cover during absences (including reception)
- Helping with the training and integration of new employees
- Participating in the continuous improvement of monitoring and communication processes
What we offer you:
- A multicultural working environment with the opportunity to help shape a sustainable future
- State-of-the-art technologies and a modern workplace within a sustainable company
- A company that encourages talent and continuous training of its employees
- The security of a financially solid, widely diversified group strongly anchored in Switzerland
- Flexible working models and modern work tools with the possibility of remote work
- An attractive selection of benefits:
- 5 weeks of holiday and 9 compensatory days per year
- An internal pension fund with a very good coverage rate and 3 contribution levels
- Numerous discounts with renowned product and service providers
- Members of our team share in video what makes their experience at Implenia unique: https://youtu.be/wtuhlIfjJq8
If you identify with this description and wish to join Implenia, we look forward to receiving your application.
Do you have any questions?
Frédéric Lablanquieréponds to your questions.
frederic.lablanquie@implenia.com
Didn’t find an opportunity on Jobup.ch?
All our offers are available on our career pages. You can find them by following these links:
- ForImplenia: To our page
- ForWincasa: To our page
At Implenia, we value and live diversity. Our recruitment process is therefore focused on promoting diversity, equality and inclusion.
*We do not accept applications submitted by placement agencies or any other intermediaries. Any application sent through these channels will not be considered and does not constitute any commitment on our part.