Personal Sigma Aarau AG
Thalheim
Administrative Officer, HR & Projects 60-80%
- 02 October 2026
- 60 – 80%
- Permanent position
- German (Native language)
About the job
"Completely ecological, logical" is more than just a guiding principle of Theo Wernli AG in Thalheim AG. To strengthen the team, we are looking for a reliable and versatile individual who supports the administration with expertise, commitment and organisational skill.
Administrative Officer, HR and Projects 60-80%
As versatile support for our administration, you will take responsibility in the areas of human resources, project administration, finance, marketing and general office administration.
What to expect
- A varied and responsible role
- A broad range of tasks with plenty of independence
- A modern working environment in a motivated team
- Opportunities for personal and professional development
What you bring
- Commercial training or equivalent qualification
- Experience in administration, HR administration and marketing
- Good knowledge of MS Office
- Independent, structured and reliable working style
- Organisational talent and enjoyment of diverse tasks
- Confident German language skills, both spoken and written
- Team-oriented, service-minded personality
Your tasks
- HR administration including employee interviews, time tracking and social insurance
- Preparation of payroll data
- Project administration from order entry to archiving
- Support of financial accounting
- Creation of quotations and order billing
- Management of social media posts and other marketing activities
- General administrative tasks, telephone service and material orders
- Maintenance of quality and process documentation
Interested?
Then we look forward to receiving your complete application documents. For initial questions, we are also happy to be available by phone.